6 Best DDR4 RAMS Under $50, Compared
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Finding the best ddr4 RAMs under $50 requires careful attention to specifications. We compared 6 options based strictly on the data published on their listings. The top pick is the Crucial 4GB DDR4 2400MHz SODIMM Laptop RAM. It leads because its 2400MHz speed offers a reliable balance for basic laptop upgrades. This guide helps you decide which module fits your device's form factor and performance needs. You will see how latency and capacity vary across these budget-friendly choices.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Crucial 4GB DDR4 2400MHz SODIMM Laptop RAM Best overall | basic laptop upgrades and compatibility | Check price of Crucial 4GB DDR4 2400MHz SODIMM Laptop RAM on Amazon |
| 2 | A-Tech 4GB DDR4 2133MHz SODIMM Best premium | basic laptop upgrades on a budget | Check price of A-Tech 4GB DDR4 2133MHz SODIMM on Amazon |
| 3 | OLOy 8GB DDR4 2400MHz Laptop RAM Best 2400mhz | Laptop upgrades needing single-stick 8GB capacity | Check price of OLOy 8GB DDR4 2400MHz Laptop RAM on Amazon |
| 4 | OLOy 8GB (2x4GB) DDR4 2666MHz SODIMM Best budget | Laptops needing 8GB capacity | Check price of OLOy 8GB (2x4GB) DDR4 2666MHz SODIMM on Amazon |
| 5 | Motoeagle 8GB DDR4 2666MHz SODIMM Also great | basic laptop memory upgrades | Check price of Motoeagle 8GB DDR4 2666MHz SODIMM on Amazon |
| 6 | Motoeagle 8GB DDR4-2133 Desktop RAM Best desktop | basic desktop upgrades needing single-stick 8GB expansion | Check price of Motoeagle 8GB DDR4-2133 Desktop RAM on Amazon |
The best fit for you
- You need the most compatible upgrade for older laptops Crucial 4GB DDR4 2400MHz SODIMM Laptop RAM This 4GB SODIMM at 2400MHz with CL17 latency fits basic laptop upgrades perfectly.
- You want the lowest cost option for a quick fix A-Tech 4GB DDR4 2133MHz SODIMM The 2133MHz speed and single-stick design make this the best budget choice.
- You require a single stick with 8GB capacity OLOy 8GB DDR4 2400MHz Laptop RAM This 8GB SODIMM runs at 2400MHz with CL17 latency for reliable upgrades.
- You need desktop memory for a single 8GB expansion Motoeagle 8GB DDR4-2133 Desktop RAM This UDIMM runs at 2133MHz with CL15 latency for standard desktop use.
Our 6 picks
Crucial 4GB DDR4 2400MHz SODIMM Laptop RAM
Best for: basic laptop upgrades and compatibility
- Total Capacity
- 4GB
- Memory Speed
- 2400MHz
- CAS Latency
- CL17
- Voltage
- 1.2V
- Module Configuration
- 1x4GB
- Form Factor
- SODIMM
View on Amazon: Crucial 4GB DDR4 2400MHz SODIMM Laptop RAM Affiliate link
This Crucial 4GB DDR4 SODIMM runs at 2400MHz with CL17 latency and 1.2V voltage. It uses a 260-pin non-ECC design for standard laptops. The 1Rx8 configuration ensures compatibility with most systems. You get reliable performance for basic multitasking. It fits users who need a straightforward upgrade without complex settings. The module is small and lightweight for easy installation in tight spaces.
Pros
- 2400MHz speed for smooth multitasking
- 1.2V low voltage operation
- 260-pin SODIMM form factor
- CL17 latency timing
Cons
- Only 4GB capacity limits heavy workloads
- 2400MHz is slower than 2666MHz or 3200MHz options
- Single stick configuration offers no dual-channel benefit
Good fit if
- You need a basic laptop RAM upgrade
- You prioritize compatibility over maximum speed
- You are on a tight budget
Skip if
- You require high-speed gaming performance
- You need more than 4GB of memory
- You want dual-channel memory configuration
Verdict: Crucial 4GB DDR4 2400MHz SODIMM is a solid choice for users needing a simple, compatible upgrade for older laptops. It suits those who value reliability and ease of installation over raw speed or higher capacity.
A-Tech 4GB DDR4 2133MHz SODIMM
Best for: basic laptop upgrades on a budget
- Total Capacity
- 4GB
- Memory Speed
- 2133 MHz
- CAS Latency
- CL15
- Voltage
- 1.2V
- Module Configuration
- 1x4GB
- Form Factor
- SODIMM
View on Amazon: A-Tech 4GB DDR4 2133MHz SODIMM Affiliate link
This A-Tech module provides 4GB of DDR4 memory in a single stick. It runs at 2133 MHz with a CL15 latency and 1.2V voltage. The 260-pin SODIMM form factor fits most laptops. It is non-ECC and unbuffered. This kit suits users needing basic upgrades for older systems or light daily tasks.
Pros
- Single 4GB capacity for easy installation
- 2133 MHz speed with CL15 latency
- Standard 1.2V voltage for efficiency
- Compatible with select DDR4 laptops
Cons
- Lower 2133 MHz speed compared to 2666 MHz options
- Single stick limits dual-channel performance
- 4GB capacity is small for modern multitasking
Good fit if
- You need a simple 4GB upgrade for an older laptop
- You want a single-stick solution for easy installation
- You are on a tight budget for basic computing
Skip if
- You require high-speed gaming performance
- You need more than 4GB for heavy multitasking
- You want to enable dual-channel memory benefits
Verdict: A-Tech 4GB DDR4 2133MHz Laptop RAM fits users needing a basic, single-stick upgrade for older laptops. It offers standard specs but lacks the speed and capacity for demanding modern tasks.
OLOy 8GB DDR4 2400MHz Laptop RAM
Best for: Laptop upgrades needing single-stick 8GB capacity
- Total Capacity
- 8GB
- Memory Speed
- 2400 MHz
- CAS Latency
- CL17
- Voltage
- 1.2V
- Module Configuration
- 1x8GB
- Form Factor
- SODIMM
View on Amazon: OLOy 8GB DDR4 2400MHz Laptop RAM Affiliate link
This OLOy module offers 8GB of DDR4 memory in a single stick format. It runs at 2400MHz with a CL17 latency and operates at 1.2V. The SODIMM form factor is designed specifically for laptop upgrades. It includes a lifetime warranty. This kit suits users needing a straightforward capacity boost for older or mid-range laptops without requiring dual-channel configurations.
Pros
- 8GB single-stick capacity
- 2400MHz clock speed
- CL17 latency
- 1.2V low voltage
- Lifetime warranty
Cons
- 2400MHz is slower than 2666MHz competitors
- Single stick limits dual-channel performance
- Cl17 latency is higher than CL15 options
Good fit if
- You need a simple 8GB upgrade for a laptop
- You prefer a single stick for easy installation
- You want a lifetime warranty on your memory
Skip if
- You require high-speed 2666MHz or faster memory
- You need dual-channel performance for gaming
- You are building a desktop computer
Verdict: OLOy 8GB DDR4 2400MHz SODIMM fits laptop owners who need a reliable single-stick upgrade with a lifetime warranty, though it lacks the speed of dual-channel alternatives.
OLOy 8GB (2x4GB) DDR4 2666MHz SODIMM
Best for: Laptops needing 8GB capacity
- Total Capacity
- 8GB
- Memory Speed
- 2666 MHz
- CAS Latency
- CL19
- Voltage
- 1.2V
- Module Configuration
- 2x4GB
- Form Factor
- SODIMM
View on Amazon: OLOy 8GB (2x4GB) DDR4 2666MHz SODIMM Affiliate link
This OLOy kit gives you 8GB of DDR4 memory in a 2x4GB configuration, running at 2666MHz with CL19 latency. It uses standard 1.2V and fits 260-pin laptop slots. The specs make it a solid upgrade for systems that support this speed. You get a lifetime warranty and Intel compatibility. It is a practical option if you need more capacity than the 4GB kits listed here.
Pros
- 8GB total capacity in a 2x4GB kit
- 2666MHz memory speed
- 1.2V operating voltage
- Lifetime warranty coverage
- Compatible with Intel laptops
Cons
- Higher CAS latency (CL19) than some competitors
- Single stick is only 4GB, limiting single-channel upgrades
- No RGB lighting or heatsink included
Good fit if
- You need 8GB of RAM for your laptop
- You want a kit with a lifetime warranty
- You are upgrading an Intel-based system
Skip if
- You require a single 8GB stick
- You need a lower latency like CL15 or CL17
- You are using a desktop PC instead of a laptop
Verdict: OLOy 8GB DDR4 2666MHz SODIMM offers reliable performance for laptops needing a capacity boost. It is best for users who prioritize warranty coverage and standard speed over tighter timings.
Motoeagle 8GB DDR4 2666MHz SODIMM
Best for: basic laptop memory upgrades
- Total Capacity
- 8GB
- Memory Speed
- 2666MHz
- CAS Latency
- CL19
- Voltage
- 1.2V
- Module Configuration
- 1x8GB
- Form Factor
- SO-DIMM
View on Amazon: Motoeagle 8GB DDR4 2666MHz SODIMM Affiliate link
This Motoeagle module is an 8GB DDR4 SODIMM running at 2666MHz with CL19 latency. It operates at standard 1.2V and uses Non-ECC unbuffered memory. The 260-pin design fits most laptops and notebooks. You get a single stick that upgrades older systems. It supports basic computing tasks without requiring specialized hardware knowledge.
Pros
- 8GB capacity in a single module
- 2666MHz speed for decent performance
- Standard 1.2V voltage
- Non-ECC unbuffered design
Cons
- CL19 latency is slower than CL15 or CL17 options
- Single rank (1Rx8) configuration
- No ECC support for error correction
Good fit if
- You need a simple 8GB upgrade for a laptop
- You want a standard 2666MHz speed
- You are replacing a failed single stick
Skip if
- You require error correction for critical data
- You need the lowest possible latency
- You want a dual-channel kit already installed
Verdict: Motoeagle 8GB DDR4 2666MHz SODIMM suits users who need a straightforward capacity bump for older laptops. It works well for general office tasks but lacks the speed of lower-latency alternatives.
Motoeagle 8GB DDR4-2133 Desktop RAM
Best for: basic desktop upgrades needing single-stick 8GB expansion
- Total Capacity
- 8GB
- Memory Speed
- 2133MHz
- CAS Latency
- CL15
- Module Configuration
- 1x8GB
- Form Factor
- UDIMM
- ECC Support
- Non-ECC
View on Amazon: Motoeagle 8GB DDR4-2133 Desktop RAM Affiliate link
This Motoeagle module is an 8GB DDR4 UDIMM designed for desktop computers. It runs at 2133MHz with PC4-17000 bandwidth and features CL15 latency. The 2RX8 configuration and Non-ECC support make it suitable for standard builds. You get a single stick that fits into 288-pin slots. It includes a lifetime warranty and tech support for installation help.
Pros
- 8GB capacity in a single 288-pin UDIMM stick
- 2133MHz speed with CL15 CAS latency
- Non-ECC architecture for standard desktop use
- Lifetime warranty and tech support included
Cons
- 2133MHz speed is slower than 2400MHz or 2666MHz alternatives
- Single 8GB stick limits dual-channel performance potential
- No heat spreader mentioned, relying on basic PCB cooling
Good fit if
- You need a simple 8GB upgrade for an older desktop
- You prefer a single stick to leave other slots open
- You want a Non-ECC module with a lifetime warranty
Skip if
- You require high-speed memory for gaming or heavy multitasking
- You need dual-channel performance with matched 2x4GB kits
- You are building a laptop with SODIMM slots
Verdict: Motoeagle 8GB DDR4-2133 Desktop RAM offers basic reliability for standard desktop upgrades. It fits users who prioritize a single-stick expansion with warranty coverage over raw speed.
Specifications side by side
| Spec | Crucial 4GB DDR4 2400MHz SODIMM Laptop RAM | A-Tech 4GB DDR4 2133MHz SODIMM | OLOy 8GB DDR4 2400MHz Laptop RAM | OLOy 8GB (2x4GB) DDR4 2666MHz SODIMM | Motoeagle 8GB DDR4 2666MHz SODIMM | Motoeagle 8GB DDR4-2133 Desktop RAM |
|---|---|---|---|---|---|---|
| Total Capacity | 4GB | 4GB | 8GB | 8GB | 8GB | 8GB |
| Memory Speed | 2400MHz | 2133 MHz | 2400 MHz | 2666 MHz | 2666MHz | 2133MHz |
| CAS Latency | CL17 | CL15 | CL17 | CL19 | CL19 | CL15 |
| Voltage | 1.2V | 1.2V | 1.2V | 1.2V | 1.2V | not stated |
| Module Configuration | 1x4GB | 1x4GB | 1x8GB | 2x4GB | 1x8GB | 1x8GB |
| Form Factor | SODIMM | SODIMM | SODIMM | SODIMM | SO-DIMM | UDIMM |
| ECC Support | Non-ECC | Non-ECC | not stated | not stated | Non-ECC | Non-ECC |
| Height | 1.1 inches | not stated | not stated | not stated | not stated | not stated |
| Compatible Device | Laptop | Laptop | Laptop | Laptop | Laptop | Desktop |
| Size | 4GB | 4GB (1 x 4GB) | 8GB | 8GB (4GBx2) | DDR4 2666MHz SODIMM 8 GB (8 GB x 1) | 8GB (1x8GB) 2RX8 PC4-2133 |
| Dimensions | 2.7 × 0.2 × 1.1 inches | 2.74 × 1.18 × 0.15 inches | 5.25 × 1.22 × 0.05 inches | 5.25 × 1.22 × 0.05 inches | not stated | not stated |
| Weight | 0.32 ounces | not stated | 0.35 ounces | 0.35 ounces | not stated | not stated |
| Color | Multicolor | DDR4 2133 (PC4-17000) | Blister | SODIMM x2 | 8GB 1RX8 DDR4-2666 Green x1 | DDR4 GREEN |
| Model | CT4G4SFS824A | AT4G1D4S2133NA0N12V | MD4S082417IZSC | MD4S042619IZDC | not stated | not stated |
How to choose the right one
-
Match memory speed to needs
Memory speed determines how fast data moves between the RAM and the processor. Higher MHz values generally improve performance in demanding tasks. The OLOy 8GB DDR4 2666MHz SODIMM offers 2666MHz for slightly better throughput than standard 2400MHz modules. If you only browse the web or write documents, the 2133MHz A-Tech stick is sufficient. Choose higher speeds only if your specific workload benefits from faster data rates.
-
Check compatible device type
You must verify whether your computer is a laptop or a desktop before purchasing. The Crucial 4GB DDR4 2400MHz SODIMM Laptop RAM is designed specifically for portable computers. In contrast, the Motoeagle 8GB DDR4-2133 Desktop RAM is built for stationary towers. Installing the wrong type can damage the hardware or simply fail to fit. Always confirm your device category to ensure physical and electrical compatibility with the chosen module.
-
Select appropriate capacity
Capacity defines how many applications can run simultaneously without slowing down your system. The OLOy 8GB DDR4 2400MHz Laptop RAM provides double the storage of the 4GB options. This extra space helps when multitasking with many browser tabs or office programs. If you only need to fix an old machine for basic tasks, the 4GB Crucial or A-Tech sticks are adequate. Upgrade to 8GB if you notice frequent freezing or swapping.
-
Consider CAS latency values
CAS latency measures the delay before the RAM responds to a command. Lower numbers indicate faster response times. The A-Tech 4GB DDR4 2133MHz SODIMM features a CL15 rating, which is tighter than the CL17 found in the Crucial and OLOy 8GB options. While speed matters, latency also affects responsiveness. For general use, the difference is minor. However, if you prioritize snappy system reactions, look for lower CL numbers alongside your desired speed.
-
Verify voltage requirements
Voltage indicates the power level required for the RAM to operate safely. Most modern DDR4 modules run at 1.2V, which is standard and energy-efficient. The OLOy 8GB DDR4 2666MHz SODIMM and Motoeagle 8GB DDR4 2666MHz SODIMM both specify 1.2V operation. This ensures compatibility with standard motherboard power supplies. Always check the voltage specification to avoid potential instability. Stick to the standard 1.2V unless your specific hardware documentation requires a different setting for optimal performance.
Frequently asked questions
Can I use SODIMM RAM in a desktop computer?
No, you cannot. SODIMM modules are physically smaller and designed for laptops. Desktops require UDIMM sticks. The Motoeagle 8GB DDR4-2133 Desktop RAM uses the UDIMM form factor. It fits standard desktop motherboards. You must match the module type to your device to ensure proper installation and functionality.
What is the difference between CL15 and CL19 latency?
CAS Latency (CL) measures the delay before data is accessed. Lower numbers indicate faster response times. The A-Tech 4GB DDR4 2133MHz has CL15 latency. The OLOy 8GB DDR4 2666MHz has CL19 latency. A lower CL value generally provides quicker performance for specific tasks, though speed also plays a role.
Is ECC memory necessary for standard laptops?
No, ECC is not necessary for standard laptops. Most consumer laptops use Non-ECC memory. The A-Tech 4GB DDR4 2133MHz is listed as Non-ECC. The Motoeagle 8GB DDR4 2666MHz is also Non-ECC. ECC memory is typically reserved for servers or workstations requiring error correction. Standard users do not need it.
Does 2400MHz RAM work in a 2666MHz slot?
Yes, it works but runs at the slower speed. The OLOy 8GB DDR4 2666MHz SODIMM operates at 2666MHz. The Crucial 4GB DDR4 2400MHz SODIMM runs at 2400MHz. If you install slower RAM, it will downclock to match the system’s limit. You get the capacity of the stick, not its maximum rated speed.
How much space does a SODIMM stick take up?
SODIMM sticks are compact, typically around 2.7 inches long. The Crucial 4GB DDR4 2400MHz measures 2.7 inches in length. The A-Tech 4GB DDR4 2133MHz is 2.74 inches long. They are about 0.15 to 0.2 inches wide. This small form factor allows them to fit inside thin laptop chassis.
Can I mix different brands of RAM sticks?
You can mix brands, but compatibility varies. The OLOy 8GB (2x4GB) DDR4 2666MHz comes as a kit. Mixing a Motoeagle stick with an A-Tech stick may cause stability issues. It is best to use identical modules for dual-channel operation. The OLOy kit ensures matching specs. Mixing single sticks is possible but less reliable.
What voltage do these DDR4 modules use?
These modules use standard 1.2V voltage. The OLOy 8GB DDR4 2400MHz and 2666MHz both list 1.2V. The Motoeagle 8GB DDR4 2666MHz also operates at 1.2V. Standard DDR4 runs at this lower voltage compared to older DDR3. This helps reduce power consumption and heat generation in your device.