15 Best 8GB ddr5 RAMs, Compared
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When shopping for an 8GB ddr5 RAM upgrade or replacing memory in an existing computer, matching exact module specifications is essential for system stability. We evaluated 15 products based entirely on the specifications published on their listings.
The Timetec 8GB DDR3L 1600MHz Memory leads the selection because its 1600MHz speed and 1.35V dual-rank configuration provide an exact specification match for compatible legacy Mac systems. This guide helps you compare form factors, voltages, and transfer speeds so you can decide which memory stick fits your machine.
Quick picks
The best fit for you
- You want to upgrade an older Mac computer Timetec 8GB DDR3L 1600MHz Memory It features 1600MHz DDR3L specifications matched to compatible legacy Apple systems.
- You need 3200MHz DDR4 memory for a desktop Timetec 8GB DDR4 3200MHz UDIMM It delivers 3200MHz speed with CL22 latency in a standard 288-pin UDIMM format.
- You require 1866MHz SODIMM RAM for an iMac Timetec 8GB DDR3L 1866MHz SODIMM This 1.35V SODIMM runs at 1866MHz for Late 2015 27-inch Retina 5K iMacs.
- You need 2666MHz DDR4 RAM for a laptop Timetec 8GB DDR4 2666MHz SODIMM RAM This module delivers 2666MHz speed with CL19 timing in a 1.2V SODIMM form factor.
Our 15 picks
Timetec 8GB DDR3L 1600MHz Memory
Best for: upgrading compatible legacy Apple Mac systems
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- 1600MHz
- CAS Latency
- CL11
- Kit Configuration
- 1x8GB
- Form Factor
- 204-Pin
View on Amazon: Timetec 8GB DDR3L 1600MHz Memory (paid link)
This Timetec module gives you 8GB of DDR3L memory running at 1600MHz. It features a 204-pin unbuffered non-ECC design, dual rank 2Rx8 architecture, and operates at 1.35V with CL11 latency. It fits compatible Mac systems, including specific MacBook Pro, iMac, and Mac Mini models. If you need a single 8GB module to upgrade supported Apple hardware, this option provides exact plug-and-play compatibility.
Pros
- Low operating voltage of 1.35V
- 1600MHz speed rating with CL11 latency
- 204-pin unbuffered non-ECC dual-rank structure
- Lifetime warranty with US-based technical support
Cons
- Uses DDR3L technology instead of DDR4 or DDR5
- Packaged as a single module rather than a multi-channel kit
- Compatibility limited to select older Apple models
Good fit if
- You own a supported MacBook Pro, iMac, or Mac Mini from 2011 to 2015.
- You require 1.35V DDR3L 204-pin non-ECC memory.
- You want a single 8GB dual-rank module backed by a lifetime warranty.
Skip if
- You require DDR4 or DDR5 memory for modern hardware.
- You need full-sized 288-pin desktop DIMM modules.
Verdict: Timetec 8GB DDR3L 1600MHz Memory is designed for select older Mac systems requiring 204-pin 1.35V unbuffered RAM. It gives you stable dual-rank capacity matched to legacy Apple hardware specifications.
SK Hynix 8GB DDR4 PC4-17000U RAM
Best for: DDR4 systems needing PC4-17000u dual-rank memory
- Size
- 8GB
- Capacity
- 8gb
- Dimensions
- 5.25 × 0.15 × 1.21 inches
View on Amazon: SK Hynix 8GB DDR4 PC4-17000U RAM (paid link)
The SK Hynix 8GB DDR4 PC4-17000U RAM is a single desktop memory module providing 8GB of DDR4 memory. It features a dual-rank 2Rx8 design and runs at the PC4-17000u standard. Measuring 1.21 inches tall and 5.25 inches long, it fits standard desktop slots without clearance issues. This module suits you if you need to maintain or expand an existing PC that requires PC4-17000u DDR4 RAM.
Pros
- 8GB capacity module
- Dual-rank 2Rx8 layout
- Compact 1.21-inch height
Cons
- DDR4 specification rather than DDR5
- PC4-17000u standard speed
Good fit if
- You need an 8GB DDR4 desktop memory module.
- You require dual-rank 2Rx8 PC4-17000u memory.
Skip if
- You need a DDR5 memory module for your system.
- You require speeds higher than PC4-17000u.
Verdict: SK Hynix 8GB DDR4 PC4-17000U RAM delivers standard dual-rank DDR4 desktop memory for systems requiring PC4-17000u specifications.
SK Hynix 8GB Dual Rank Module
Best for: systems requiring 8GB PC4-2133P dual-rank memory
- Size
- 8GB
- Capacity
- 8GB
- Kit Configuration
- 1X8GB
- Dimensions
- 9 × 6 × 1 inches
View on Amazon: SK Hynix 8GB Dual Rank Module (paid link)
This SK Hynix 8GB Dual Rank Module provides 8GB of memory on a single 1x8GB stick. It features a 2Rx8 rank configuration and operates to the PC4-2133P standard. If you want to replace an old stick or expand compatible hardware, this component gives you verified factory specifications. You get a multicolor board suitable for systems that require standard 2133 MHz dual-rank modules.
Pros
- 8GB capacity in a 1x8GB single-stick format
- 2Rx8 dual-rank memory organization
- Standard PC4-2133P operational rating
Cons
- PC4-2133P speed is lower than newer standards
- Single module does not supply dual-channel operation alone
Good fit if
- You need a single 8GB replacement module for an existing build.
- You specifically require a 2Rx8 PC4-2133P configuration.
Skip if
- You need a multi-module kit for out-of-the-box dual-channel setups.
- You require memory designed for newer DDR generations.
Verdict: SK Hynix 8GB Dual Rank Module delivers 8GB of PC4-2133P memory in a 2Rx8 single-stick format. It provides an exact spec match for systems requiring this configuration.
Timetec 8GB DDR3L 1866MHz SODIMM
Best for: Late 2015 27-inch Retina 5K iMacs
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- 1866MHz
- CAS Latency
- CL13
- Kit Configuration
- 1x8GB
- Form Factor
- 204 Pin SODIMM
View on Amazon: Timetec 8GB DDR3L 1866MHz SODIMM (paid link)
This Timetec module provides 8GB of DDR3L memory operating at 1866MHz with CL13 latency. It comes in a 204-pin SODIMM form factor and operates at 1.35V with support for 1.5V JEDEC standards. You get dual-rank non-ECC architecture designed specifically for Apple Late 2015 27-inch Retina 5K iMac computers. It suits you if you want to expand system memory on a compatible iMac using an unbuffered single-module upgrade.
Pros
- Runs at 1866MHz with CL13 latency
- Supports both 1.35V and 1.5V operating voltages
- Non-ECC unbuffered 204-pin SODIMM design
- Includes lifetime warranty and US-based technical support
Cons
- Uses DDR3L technology rather than DDR4 or DDR5
- Configured specifically for Late 2015 27-inch iMac models
Good fit if
- You own an Apple Late 2015 27-inch Retina 5K iMac.
- You need an 8GB 1866MHz DDR3L SODIMM module.
Skip if
- You have a modern system requiring DDR4 or DDR5 RAM.
- You need ECC memory or a standard desktop DIMM.
Verdict: Timetec 8GB DDR3L 1866MHz iMac RAM provides an unbuffered 1866MHz memory expansion for compatible 2015 27-inch Apple iMac desktops.
Timetec 8GB DDR3 1066MHz SODIMM RAM
Best for: upgrading legacy 2009–2010 Apple Mac systems
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- 1066MHz
- CAS Latency
- CL7
- Kit Configuration
- 1x8GB
- Form Factor
- 204-Pin SODIMM
View on Amazon: Timetec 8GB DDR3 1066MHz SODIMM RAM (paid link)
This Timetec module gives you 8GB of DDR3 memory running at 1066MHz with CL7 latency. It uses a 204-pin SODIMM form factor, non-ECC unbuffered design, and 1.5V operating voltage. The module fits older Apple machines like 2010 MacBooks, MacBook Pros, and 2009 iMacs. If you maintain legacy Mac hardware that requires low-latency PC3-8500 dual-rank memory, this single-module upgrade supplies the exact specifications your older system expects.
Pros
- DDR3 1066MHz speed with CL7 latency
- Dual rank 2Rx8 unbuffered non-ECC design
- Standard 204-pin SODIMM form factor
- Manufacturer lifetime warranty included
Cons
- DDR3 generation incompatible with modern DDR4 or DDR5 systems
- Operates at 1.5V rather than lower 1.35V DDR3L standard
- Compatibility limited primarily to select 2009 and 2010 Mac models
Good fit if
- You need 204-pin DDR3 1066MHz memory for a mid-2010 MacBook, MacBook Pro, or Mac mini.
- You want an 8GB dual-rank module operating at standard 1.5V.
Skip if
- You own a newer desktop or laptop requiring DDR4 or DDR5 RAM.
- Your system specifically requires low-voltage 1.35V memory.
Verdict: Timetec 8GB DDR3 1066MHz SODIMM RAM provides a reliable single-stick legacy upgrade tailored for supported 2009 and 2010 Mac hardware.
Crucial 8GB DDR4 2400MHz SODIMM RAM
Best for: 2400MHz DDR4 laptop memory upgrades
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- DDR4-2400
- Form Factor
- 260-pin SODIMM
- Dimensions
- 2.7 × 0.2 × 1.1 inches
- Weight
- 0.32 ounces
View on Amazon: Crucial 8GB DDR4 2400MHz SODIMM RAM (paid link)
This Crucial memory module is an 8GB DDR4 RAM stick built for compact systems. It features a 260-pin SODIMM form factor and runs at a memory speed of 2400MHz (PC4-19200). Measuring 2.7 inches long and 1.1 inches high, it fits compatible laptop memory slots. If you need a standard 8GB DDR4 replacement or expansion module for your SODIMM-based setup, this single module handles basic everyday computing.
Pros
- DDR4-2400 speed (PC4-19200)
- Standard 260-pin SODIMM form factor
- Compact dimensions at 2.7 by 1.1 inches
- Lightweight module at 0.02 pounds
Cons
- DDR4 memory generation rather than DDR5
- SODIMM design does not fit standard desktop DIMM slots
- Base clock speed capped at 2400MHz
Good fit if
- You need an 8GB DDR4 SODIMM module for a laptop or small-form-factor PC
- You require 2400MHz memory matching PC4-19200 specifications
Skip if
- You need full-size 288-pin DIMM memory for a desktop motherboard
- You require DDR5 RAM for a newer platform
Verdict: Crucial 8GB 2400MHz DDR4 SODIMM provides a compact 260-pin memory upgrade for compatible laptops. It delivers DDR4-2400 performance in a single 8GB module.
Timetec 8GB DDR4 3200MHz UDIMM
Best for: standard DDR4 desktop systems needing 3200MHz CL22
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- 3200MHz
- CAS Latency
- CL22
- Kit Configuration
- Single Module 8GB
- Form Factor
- 288-Pin UDIMM
View on Amazon: Timetec 8GB DDR4 3200MHz UDIMM (paid link)
This Timetec memory module provides 8GB of DDR4 desktop memory running at 3200MHz with CL22 timings. Operating at standard 1.2V, this 288-pin unbuffered UDIMM fits compatible desktop motherboards and automatically downclocks to 2933MHz or 2666MHz if your system requires it. If you need a single-rank non-ECC module for daily computing, office tasks, or standard desktop system maintenance without modifying voltage settings, this option meets those basic hardware specifications cleanly.
Pros
- Runs at 3200MHz at standard 1.2V without voltage adjustments
- Automatically downclocks to 2933MHz or 2666MHz if your system requires it
- Standard 288-pin UDIMM form factor with a 1.2-inch height profile
- Backed by a limited lifetime warranty
Cons
- Not compatible with laptop SODIMM slots
- Higher CAS latency rated at CL22
- Lacks ECC error-correcting support
Good fit if
- You need an unbuffered 288-pin DDR4 desktop module that operates at standard 1.2V.
- You have a motherboard that caps memory speeds at 2666MHz, 2933MHz, or 3200MHz.
- You want a single 8GB single-rank stick for a standard desktop build.
Skip if
- You are upgrading a laptop that requires 260-pin SODIMM memory.
- You require error-correcting code (ECC) memory for enterprise servers.
- You want lower CAS latency timings than CL22.
Verdict: Timetec 8GB DDR4 3200MHz UDIMM delivers standard desktop memory performance with automated downclocking support and plug-and-play 1.2V operation. It fits systems needing dependable 288-pin non-ECC memory without specialized configuration.
Timetec 8GB DDR4 2400MHz Desktop UDIMM
Best for: standard DDR4 desktop PC memory upgrades
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- 2400MHz
- CAS Latency
- CL17
- Kit Configuration
- Single Module 8GB
- Form Factor
- 288-Pin UDIMM
View on Amazon: Timetec 8GB DDR4 2400MHz Desktop UDIMM (paid link)
This Timetec memory module provides 8GB of DDR4 desktop storage running at 2400MHz. It operates at 1.2V with CL17 latency on a standard 288-pin UDIMM layout. Designed for desktop systems and workstations supporting non-ECC unbuffered RAM, it delivers plug-and-play installation for compatible setups. You will find it suitable if you need a standard-height single-stick memory replacement or expansion module for an existing desktop computer that accepts DDR4 PC4-19200 specifications.
Pros
- Standard 1.2V operating voltage
- 288-pin non-ECC unbuffered UDIMM format
- Plug-and-play installation without extra configuration
- Backed by a limited lifetime warranty
Cons
- Operates at DDR4 2400MHz rather than DDR5 speeds
- Incompatible with laptop SODIMM slots
- Module rank and PCB color vary by batch
Good fit if
- You need a single 8GB DDR4 module for a desktop PC.
- You have a system supporting 288-pin UDIMM memory at 2400MHz.
- You want a 1.2V non-ECC unbuffered memory upgrade.
Skip if
- You need DDR5 memory or speeds faster than 2400MHz.
- You need laptop RAM for a SODIMM slot.
- You require error-correcting (ECC) workstation memory.
Verdict: Timetec 8GB DDR4 2400MHz Desktop UDIMM is a dependable, single-stick upgrade for DDR4 desktop computers requiring standard 1.2V unbuffered non-ECC memory. It installs easily into compatible 288-pin motherboard slots.
Timetec 8GB DDR4 2400MHz SODIMM
Best for: 2017 Apple iMac memory upgrades
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- 2400MHz
- CAS Latency
- CL17
- Kit Configuration
- 1x8GB
- Form Factor
- 260 Pin SODIMM
View on Amazon: Timetec 8GB DDR4 2400MHz SODIMM (paid link)
This Timetec module gives you 8GB of DDR4 memory running at 2400MHz with CL17 latency. Designed in a 260-pin SODIMM form factor operating at 1.2V, this unbuffered non-ECC RAM fits compatible 2017 iMac computers, including 27-inch 5K and 21.5-inch systems. It suits you if you need a direct single-module memory replacement or expansion built specifically to match the clock speed and voltage parameters of supported Apple desktop hardware.
Pros
- Operates at DDR4 2400MHz (PC4-19200) with CL17 timing
- Standard 1.2V operating voltage
- Engineered for 2017 iMac models 18,1, 18,2, and 18,3
- Single-rank 1Rx8 unbuffered non-ECC build
Cons
- DDR4 standard does not fit DDR5 or DDR3 systems
- Compatibility restricted to specific 2017 iMac models
Good fit if
- You need an 8GB DDR4 2400MHz module for a 2017 iMac.
- You want 1.2V unbuffered non-ECC SODIMM memory.
Skip if
- You need DDR5 memory for a newer system.
- You require a standard 288-pin desktop DIMM form factor.
Verdict: Timetec 8GB DDR4 2400MHz iMac SODIMM delivers matching 2400MHz CL17 specs for compatible 2017 Apple iMac systems. It provides a direct single-stick replacement that adheres to standard 1.2V non-ECC SODIMM specifications.
A-Tech 8GB DDR4 2666MHz SODIMM RAM
Best for: compatible DDR4 laptop and mini PC upgrades
- Size
- 8GB
- Capacity
- 16GB
- Memory Speed
- 2666MHz
- Kit Configuration
- 2x8GB
- Form Factor
- DDR4 SO-DIMM 260-Pin
- Voltage
- 1.2V
View on Amazon: A-Tech 8GB DDR4 2666MHz SODIMM RAM (paid link)
This A-Tech memory module is an 8GB DDR4 SODIMM designed for notebooks, laptops, mini PCs, and all-in-one systems. It operates at a speed of 2666MHz at the standard DDR4 voltage of 1.2V. The non-ECC unbuffered design ensures standard system compatibility across supported 260-pin slots. If you need a direct replacement or an additional module for everyday multitasking and system responsiveness on your portable computer, this hardware fits your setup.
Pros
- Runs at 2666MHz (PC4-21300) speed
- Standard 1.2V JEDEC operating voltage
- Compact 260-pin SODIMM form factor
- Non-ECC unbuffered design for broad system compatibility
Cons
- Incompatible with DDR5 and desktop DIMM slots
- Does not support ECC error checking
Good fit if
- You need a 2666MHz DDR4 SODIMM module for a laptop, mini PC, or all-in-one system.
- You want unbuffered 1.2V memory for a standard 260-pin slot.
Skip if
- You have a system that requires DDR5, DDR3, or full-size desktop DIMM slots.
- You need ECC memory support such as RDIMM or LRDIMM.
Verdict: A-Tech 8GB DDR4 2666MHz SODIMM RAM provides standard 1.2V unbuffered memory for laptops and compact systems. It offers an easy plug-and-play upgrade if your computer supports 260-pin DDR4 memory.
A-Tech 8GB DDR4 2400MHz SODIMM RAM
Best for: compatible DDR4 laptops needing 2400MHz memory
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- 2400 MHz
- CAS Latency
- CL17
- Form Factor
- DDR4 SO-DIMM 260-Pin
- Voltage
- 1.2V
View on Amazon: A-Tech 8GB DDR4 2400MHz SODIMM RAM (paid link)
This is a single 8GB DDR4 memory module running at 2400MHz with a CL17 latency. It uses a 260-pin SODIMM form factor operating at standard 1.2V JEDEC voltage. The module is non-ECC and unbuffered, available in single or dual rank configurations. It suits you if you need to upgrade or replace memory in a compatible DDR4 notebook or laptop computer requiring 2400MHz PC4-19200 specifications.
Pros
- Runs at 2400MHz (PC4-19200) with CL17 latency
- Operates at standard 1.2V DDR4 JEDEC voltage
- 260-pin SODIMM design fits compatible DDR4 laptops
- Backed by manufacturer lifetime warranty
Cons
- Uses DDR4 technology rather than newer DDR5 standards
- Laptop SODIMM form factor does not fit standard desktop DIMM slots
- Non-ECC unbuffered design lacks error-correcting capability
Good fit if
- You need an 8GB DDR4 2400MHz SODIMM module for a laptop
- You require 1.2V non-ECC unbuffered memory with CL17 timing
Skip if
- You need full-size desktop DIMM memory instead of a SODIMM
- You have a system that requires DDR5 memory
Verdict: A-Tech 8GB DDR4 2400MHz SODIMM RAM provides a direct replacement for notebooks requiring 1.2V PC4-19200 memory. It offers standard CL17 timings and a straightforward upgrade for compatible DDR4 laptops.
Timetec 8GB DDR4 2666MHz SODIMM RAM
Best for: laptops requiring 2666MHz CL19 SODIMM memory
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- 2666MHz
- CAS Latency
- CL19
- Form Factor
- 260-Pin SODIMM
- Voltage
- 1.2V
View on Amazon: Timetec 8GB DDR4 2666MHz SODIMM RAM (paid link)
This Timetec memory module delivers 8GB of DDR4 capacity in a 260-pin SODIMM form factor. Running at 2666MHz with a CAS latency of CL19, it operates at a standard 1.2V voltage rating. The unbuffered, non-ECC single module is designed specifically for compatible laptops, notebooks, mini PCs, and all-in-one systems. It suits you if you need a plug-and-play DDR4 memory upgrade for a compact machine with 260-pin slots.
Pros
- Runs at 2666MHz with CL19 latency
- Standard 1.2V operating voltage
- Plug-and-play non-ECC unbuffered design
- Includes Timetec limited lifetime warranty
Cons
- Not compatible with desktop DIMM slots
- Module rank and PCB color vary by batch
- Lacks ECC error correction support
Good fit if
- You need a 260-pin DDR4 SODIMM module for a laptop, mini PC, or all-in-one system.
- You require 2666MHz operating speed at CL19 latency.
- You prefer a 1.2V unbuffered non-ECC memory stick.
Skip if
- You need standard 288-pin DIMM memory for a desktop computer.
- You require ECC support for specialized workstation or server tasks.
Verdict: Timetec 8GB DDR4 2666MHz SODIMM RAM provides a direct 2666MHz CL19 upgrade for compatible laptops and compact computers. It works in systems requiring 260-pin 1.2V non-ECC memory modules.
Timetec 8GB DDR4 2133MHz SODIMM
Best for: compatible Intel NUC mini PCs and kits
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- 2133MHz
- CAS Latency
- CL15
- Kit Configuration
- 1x8GB
- Form Factor
- 260-Pin SODIMM
View on Amazon: Timetec 8GB DDR4 2133MHz SODIMM (paid link)
You get a single 8GB DDR4 memory module running at 2133MHz with a CL15 CAS latency. It uses a 260-pin SODIMM form factor, operates at standard 1.2V, and features a non-ECC unbuffered design. This module suits you if you need to upgrade or replace memory in compatible small form factor systems, specifically select Intel NUC kits, mini PCs, and compact boards.
Pros
- Runs at 2133MHz with CL15 CAS latency
- Standard low 1.2V operating voltage
- Single-rank 1Rx8 260-pin SODIMM build
- Includes manufacturer lifetime warranty
Cons
- Limited to 2133MHz transfer speed
- Non-ECC design lacks error-correction capability
Good fit if
- You own a compatible Intel NUC kit or mini PC requiring DDR4 SODIMM memory.
- You want a standard 1.2V non-ECC 8GB module running at 2133MHz.
Skip if
- You need full-size desktop UDIMM modules instead of SODIMM.
- You require memory speeds higher than 2133MHz or ECC support.
Verdict: Timetec 8GB DDR4 2133MHz SODIMM provides a single-module CL15 memory expansion at 1.2V for supported mini PCs and Intel NUC systems. It delivers standard base specifications without extra power demands.
SK Hynix 8GB 2666MHz DDR4 SODIMM
Best for: laptops requiring 2666MHz DDR4 SODIMM memory
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- 2666MHZ
- Form Factor
- SO-DIMM
- Dimensions
- 9 × 6 × 4 inches
View on Amazon: SK Hynix 8GB 2666MHz DDR4 SODIMM (paid link)
This SK Hynix memory module gives you 8GB of DDR4 capacity in a compact SODIMM form factor. It operates at a memory speed of 2666MHz using a 1Rx8 configuration and PC4-21300 standard bandwidth. If you want a single replacement or expansion stick for a compatible laptop or small-form-factor setup that requires 2666MHz DDR4 SODIMM memory, this module provides the exact factory specifications for your portable system.
Pros
- 8GB single-module capacity
- 2666MHz operating speed
- Compact SODIMM form factor
- PC4-21300 standard specification
Cons
- Uses DDR4 standard rather than DDR5
- SODIMM design not compatible with desktop DIMM slots
- Single module without a paired dual-channel kit
Good fit if
- You need an 8GB DDR4 SODIMM replacement module.
- You require 2666MHz PC4-21300 memory for a notebook or compact PC.
Skip if
- You need DDR5 memory modules.
- You require full-size desktop UDIMM memory.
Verdict: SK Hynix 8GB 2666MHz DDR4 SODIMM delivers standard 2666MHz DDR4 speeds in a compact laptop form factor. It is a direct fit when your portable setup requires an 8GB PC4-21300 memory upgrade.
SK Hynix 8GB DDR4 3200MHz DIMM
Best for: desktop systems needing DDR4 3200MHz memory
- Size
- 8GB
- Capacity
- 8GB
- Memory Speed
- 3200MHz
- Kit Configuration
- 8GB x 1
- Form Factor
- 288-Pin DIMM
View on Amazon: SK Hynix 8GB DDR4 3200MHz DIMM (paid link)
This SK Hynix module is a single 8GB DDR4 desktop memory stick. It operates at 3200MHz using the PC4-25600 standard across a 288-pin DIMM interface. You can install it into a compatible desktop motherboard that accepts DDR4 memory. It suits you if you need a standard-speed single module to replace existing desktop memory or expand capacity. A limited lifetime warranty is included.
Pros
- 3200MHz operating speed using PC4-25600 standard
- Standard 288-pin desktop DIMM form factor
- Limited lifetime warranty coverage
Cons
- DDR4 generation rather than DDR5
- Single 8GB module rather than a multi-module kit
Good fit if
- You need a single 8GB DDR4 3200MHz module for a desktop motherboard.
- You want 288-pin desktop memory backed by a limited lifetime warranty.
Skip if
- You need DDR5 memory rather than DDR4.
- You need laptop SO-DIMM memory instead of a 288-pin desktop DIMM.
Verdict: SK Hynix 8GB DDR4 3200MHz DIMM provides 8GB of DDR4 desktop memory running at 3200MHz on a 288-pin slot. It is a straightforward replacement or expansion module if your system requires standard DDR4 desktop memory.
Specifications side by side
| Spec | Timetec 8GB DDR3L 1600MHz Memory | SK Hynix 8GB DDR4 PC4-17000U RAM | SK Hynix 8GB Dual Rank Module | Timetec 8GB DDR3L 1866MHz SODIMM | Timetec 8GB DDR3 1066MHz SODIMM RAM | Crucial 8GB DDR4 2400MHz SODIMM RAM | Timetec 8GB DDR4 3200MHz UDIMM | Timetec 8GB DDR4 2400MHz Desktop UDIMM | Timetec 8GB DDR4 2400MHz SODIMM | A-Tech 8GB DDR4 2666MHz SODIMM RAM | A-Tech 8GB DDR4 2400MHz SODIMM RAM | Timetec 8GB DDR4 2666MHz SODIMM RAM | Timetec 8GB DDR4 2133MHz SODIMM | SK Hynix 8GB 2666MHz DDR4 SODIMM | SK Hynix 8GB DDR4 3200MHz DIMM |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Capacity | 8GB | 8gb | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB | 16GB | 8GB | 8GB | 8GB | 8GB | 8GB |
| Memory Speed | 1600MHz | not specified | not specified | 1866MHz | 1066MHz | DDR4-2400 | 3200MHz | 2400MHz | 2400MHz | 2666MHz | 2400 MHz | 2666MHz | 2133MHz | 2666MHZ | 3200MHz |
| CAS Latency | CL11 | not specified | not specified | CL13 | CL7 | not specified | CL22 | CL17 | CL17 | not specified | CL17 | CL19 | CL15 | not specified | not specified |
| Kit Configuration | 1x8GB | not specified | 1X8GB | 1x8GB | 1x8GB | not specified | Single Module 8GB | Single Module 8GB | 1x8GB | 2x8GB | not specified | not specified | 1x8GB | not specified | 8GB x 1 |
| Form Factor | 204-Pin | not specified | not specified | 204 Pin SODIMM | 204-Pin SODIMM | 260-pin SODIMM | 288-Pin UDIMM | 288-Pin UDIMM | 260 Pin SODIMM | DDR4 SO-DIMM 260-Pin | DDR4 SO-DIMM 260-Pin | 260-Pin SODIMM | 260-Pin SODIMM | SO-DIMM | 288-Pin DIMM |
| Voltage | 1.35V | not specified | not specified | 1.35V | 1.5V | not specified | 1.2V | 1.2V | 1.2V | 1.2V | 1.2V | 1.2V | 1.2V | not specified | not specified |
| ECC Support | Non ECC | not specified | not specified | Non ECC | Non ECC | not specified | Non-ECC | Non-ECC | Non-ECC | Non-ECC | Non-ECC | Non-ECC | Non-ECC | not specified | not specified |
| Compatible Device | Mac | not specified | not specified | Mac | Mac | not specified | Desktop | Desktop | Mac | Laptop | Laptop | PC, Laptop | PC | not specified | not specified |
| Size | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB | 8GB |
| Dimensions | 2.66 × 0.2 × 1.2 inches | 5.25 × 0.15 × 1.21 inches | 9 × 6 × 1 inches | 2.66 × 0.2 × 1.2 inches | 5.3 × 0.2 × 1.2 inches | 2.7 × 0.2 × 1.1 inches | 2.7 × 0.2 × 1.2 inches | 5.3 × 0.2 × 1.2 inches | not specified | 2.74 × 1.18 × 0.15 inches | 2.74 × 1.18 × 0.15 inches | not specified | not specified | 9 × 6 × 4 inches | not specified |
| Weight | 0.48 ounces | not specified | not specified | not specified | not specified | 0.32 ounces | not specified | not specified | 0.48 ounces | 0.7 ounces | not specified | not specified | not specified | not specified | not specified |
| Color | Multicolor | Multicolor | Multicolor | not specified | Multicolor | Multicolor | Black | Gold | not specified | not specified | not specified | Gold | Gold | Multicolor | not specified |
| Model | 8GB | HMA41GU6AFR8N-TF | HMA41GR7MFR8N-TF | 78AP18NUSL2R8-8G | 78AP106S2R8-8G | CT8G4S24AM | not specified | . | 78 | AT8G2D4S2666NA0N12V | AT8G1D4S2400NS8N12V | 76 | 7 | HMA81GS6JJR8N | HMA81GU6DJR8N-XN |
Is 8GB memory capacity worth it?
An 8GB module provides single-stick memory replacement or expansion for supported systems. Choosing this size allows you to match factory specifications in desktop computers, laptops, and mini PCs without altering hardware requirements. A single 8GB module supplies standard capacity across DDR3, DDR3L, and DDR4 platforms running at speeds from 1066MHz up to 3200MHz. It works as a direct replacement when your device configuration requires a specific dual-rank or unbuffered module. Adding an 8GB unit restores base operating capacity for supported hardware configurations.
Worth it if
- You need a single-stick module to replace an existing 8GB unit.
- You want to match a system specified for dual-rank 2Rx8 memory.
- You are adding memory to a computer with an open DDR3 or DDR4 slot.
Skip it if
- You require memory speeds higher than 3200MHz.
- You own a motherboard that only accepts DDR5 modules.
Before you finalize your kit selection, verify that your DDR5 motherboard supports the rated clock speeds and profile specifications of these modules.
How We Picked 8GB Modules
This guide identifies modules by finding Amazon listings that state an 8GB capacity in their title or product specifications. Only one model or size variant from each product line is included to provide a direct comparison. Every technical detail is sourced entirely from published manufacturer specifications, and products are not physically handled.
On this page, products in stock are shown first. To help you evaluate the 15 selections, the guide reviews published specifications including memory speed, form factor, voltage, and CAS latency. This helps you match the exact memory configuration your desktop, laptop, or Mac system requires.
How to Choose 8GB Memory Modules
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Matching Memory Clock Speed
You must match the operational frequency of your motherboard or existing RAM stick. Available modules span several clock rates, such as 1066MHz, 2133MHz, 2400MHz, 2666MHz, and 3200MHz. If you buy a stick clocked higher than your processor or chipset supports, it will either downclock to the highest supported frequency or fail to post. For example, the Timetec 8GB DDR4 3200MHz UDIMM supports automated downclocking for systems running at lower bus speeds. Always check your motherboard manual to identify its native maximum memory frequency before purchasing.
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Understanding CAS Latency
CAS latency, abbreviated as CL, measures the clock cycles between a read command and data availability. Lower numbers mean fewer delay cycles at a given frequency. The modules in this category feature distinct latency ratings, including CL15, CL17, CL19, and CL22. For instance, the Timetec 8GB DDR4 2133MHz SODIMM operates at CL15, whereas higher-frequency 3200MHz sticks typically run at CL22. When adding a single module to an existing configuration, ensure the latency matches your current stick. Mismatched timings can force the motherboard to adjust latency settings or create system instability.
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Checking Module Rank Layout
Memory rank designates how memory chips are organized on the printed circuit board. Single-rank modules have one block of 64-bit data, while dual-rank modules, marked as 2R or 2Rx8, have two interconnected blocks. The SK Hynix 8GB Dual Rank Module uses a 2Rx8 architecture designed for hardware requiring this exact configuration. Certain legacy chipsets and server-grade memory controllers require dual-rank memory to recognize full 8GB capacity per slot. Check your system technical service manual to determine if your platform accepts single-rank modules or specifically mandates dual-rank configurations for stability.
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Verifying Non-ECC Support
Error-Correcting Code, or ECC, refers to specialized memory circuitry that detects and repairs data corruption. Standard consumer computers, including most home desktop PCs and gaming notebooks, require non-ECC unbuffered memory modules. For example, the Timetec 8GB DDR4 2400MHz Desktop UDIMM specifies non-ECC support for standard consumer desktop motherboards. Installing ECC modules into a consumer board that lacks ECC logic typically results in boot failure. Inspect your system board specifications before selecting RAM to verify whether it requires non-ECC memory or specialized error-checking hardware to function properly.
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Target Device Architecture
Different computer types impose strict hardware parameters on memory modules. Compact systems, portable notebooks, and mini PCs use smaller memory slots, while full-sized desktop cases take longer desktop modules. Furthermore, specific brands enforce dedicated speed profiles. For instance, the Timetec 8GB DDR4 2400MHz SODIMM specifies dedicated compatibility for select 2017 iMac systems alongside standard SODIMM slots. Review your machine type, whether desktop, laptop, or all-in-one workstation, against the module specifications. Choosing memory tailored to your computer category guarantees clean electrical contact and avoids bios compatibility warnings during boot.
Frequently asked questions
Can you install DDR4 or DDR3 memory into a DDR5 motherboard slot?
No, DDR memory generations are physically incompatible because each generation uses different pin layouts and key notches. You cannot insert older DDR3 or DDR4 modules, such as the SK Hynix 8GB DDR4 PC4-17000U or Timetec DDR3L, into DDR5 motherboards. Your motherboard must have matching physical slots to seat and power the memory correctly.
What does a dual-rank 8GB memory module mean?
Dual-rank memory organizes the dynamic RAM chips into two separate 64-bit electrical blocks on a single module. The memory controller accesses these ranks sequentially. For example, the SK Hynix 8GB Dual Rank Module specifies a 2Rx8 design. You should check your motherboard memory manual to ensure your board supports dual-rank sticks before upgrading.
What does CAS latency signify on 8GB DDR4 memory?
CAS latency measures the total delay in clock cycles before RAM delivers requested data to the system controller. Lower numbers represent fewer clock cycles of waiting. Across DDR4 options, latency scales with frequency. For example, the Timetec 8GB DDR4 2133MHz SODIMM features CL15, while the Timetec 8GB DDR4 3200MHz UDIMM runs at CL22.
What does non-ECC mean on an 8GB RAM module?
Non-ECC memory operates without specialized error-checking chips, making it the standard choice for consumer PCs and laptops. Listed hardware like the Timetec 8GB DDR4 2400MHz Desktop UDIMM uses non-ECC architecture. Unless your system documentation explicitly specifies ECC error correction for enterprise or server reliability, standard desktop and laptop motherboards require non-ECC RAM modules.
How do pin counts differ between desktop DIMM and laptop SODIMM modules?
Pin counts define the electrical interface and physical length of memory modules across different device types. Desktop DDR4 UDIMMs, such as the SK Hynix 8GB DDR4 3200MHz DIMM, use 288 pins. Laptop DDR4 SODIMMs, like the Crucial 8GB DDR4 2400MHz SODIMM RAM, require 260 pins. These two sizes cannot physically interchange between system slots.
What does PC4 specification naming mean on an 8GB memory stick?
PC4 designations describe total theoretical module bandwidth in megabytes per second rather than raw megahertz clock speed. For example, the A-Tech 8GB DDR4 2400MHz SODIMM RAM corresponds to PC4-19200, whereas 2666MHz DDR4 modules correspond to PC4-21300. Reading the PC4 rating allows you to match transfer speed specifications required by your laptop manufacturer.