Crucial 32GB DDR5 RAM Kit (2x16GB), 4800MHz CL40 Laptop Memory - Compatible with Intel 12th Gen and AMD Processors - CT2K16G48C40S5
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AI Verdict
A 32GB DDR5-4800 CL40 SODIMM kit for laptops, suitable for Intel 12th Gen+ and AMD Ryzen 7000+ systems needing a capacity upgrade.
This 32GB DDR5-4800 CL40 kit is a direct upgrade for compatible laptops, providing a significant capacity boost and improved multitasking capabilities. Its 1.1V operation and SODIMM form factor align perfectly with laptop specifications.
If you need lower latency for competitive gaming, look for DDR5 kits with a lower CL number relative to their speed, like CL30 or CL32 at higher frequencies.
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Pros
- Provides 32GB capacity across two 16GB modules, allowing for dual-channel operation.
- Operates at 4800MHz, transferring 50% more data than DDR4 at launch speeds.
- Features on-die ECC (ODECC) at the component level for long-term stability.
- Includes on-module voltage regulation (PMIC) for improved efficiency and cleaner power delivery.
- Compatible with Intel XMP 3.0 and AMD EXPO profiles.
- Tested to work without compatibility issues in several popular gaming laptops.
Cons
- CAS Latency of 40 at 4800MHz results in a true latency of 16.666ns, which is higher than some DDR4 3600MHz CL18 kits (10ns).
- Performance might not fully leverage DDR5's potential compared to faster DDR5 kits available.
- Operating voltage is 1.1V, which is standard for DDR5 but doesn't offer lower voltage benefits over other DDR5 modules.
Dimension Scores
The 4800MHz speed is standard for entry-level DDR5, but the CL40 latency results in a true latency of 16.666ns, which is higher than some DDR4 kits.
It's designed for Intel 12th Gen+ and AMD Ryzen 7000+ processors and supports both XMP 3.0 and EXPO, with user reports of no compatibility issues in various laptops.
While it supports XMP and EXPO, the 4800MHz CL40 is a base speed for DDR5, and the product description doesn't highlight significant overclocking potential beyond these profiles.
Crucial highlights on-die ECC (ODECC) and on-module voltage regulation (PMIC) for stability and reliability, backed by Micron's 42 years of memory expertise.
Best For
- Upgrading 16GB DDR5 laptops to 32GB for increased multitasking and heavy application use.
- Laptops with Intel 12th Gen or newer, or AMD Ryzen 7000 Series processors that support DDR5 SODIMM.
- Users needing more RAM for 4K video editing, large data processing, or running multiple virtual machines.
Not Recommended For
- Users seeking the absolute lowest latency or highest speeds available in the DDR5 market.
- Laptops limited to DDR4 memory, as this is a DDR5 module.
- Budget builds where a faster DDR4 kit might offer better real-world latency for less money.
Watch Out For
- The 4800MHz CL40 timing translates to a real latency of 16.666ns, which is slower than a DDR4 3600MHz CL18 kit's 10ns.
- Some users suggest that spending an additional $20-$30 could get a faster DDR5 kit with lower latency.
Full Specifications
| RAM | 32 GB DDR5 |
| ASIN | B09S2PNYTY |
| Brand | Crucial |
| Color | Black |
| Series | CT2K16G48C40S5 |
| Voltage | 1.1 |
| Item Weight | 0.29 ounces |
| Manufacturer | Crucial |
| Memory Speed | 4800 MHz |
| Item model number | CT2K16G48C40S5 |
| Compatible Devices | Laptop |
| Product Dimensions | 2.74 x 0.15 x 1.18 inches |
| Computer Memory Size | 32 GB |
| Computer Memory Type | DDR5 SDRAM |
| RAM Memory Technology | DDR5 |
| Item Dimensions LxWxH | 2.74 x 0.15 x 1.18 inches |
What Buyers Say
Users upgrading to this 32GB DDR5-4800 kit often report a noticeable improvement in system responsiveness and multitasking, especially when moving from 16GB. While the 4800MHz CL40 timings aren't the fastest available for DDR5, many find it a practical and effective upgrade for their compatible laptops. The installation process is generally described as simple, and the modules are recognized without issues in various systems.
“Needed more RAM for my new gaming laptop, this Crucial kit popped right in and now I can actually run Chrome with a game open without everything freezing up, finally!”
Common Praise
- Laptop recognized the 32GB capacity immediately after installation.
- Multitasking with more applications feels smoother and more responsive.
- Installation was straightforward, taking only a few minutes.
- No reported compatibility issues with Intel 12th Gen or AMD Ryzen 7000 series laptops.
- Improved performance in demanding applications like video editing.
Common Complaints
- The CL40 latency is higher than some DDR4 kits, leading to a slower true latency.
- Some users feel faster DDR5 kits offer a better performance-per-dollar value.
- Not a significant speed bump if already on a fast DDR5 kit, primarily a capacity upgrade.
Ownership Tips
- The laptop's initial boot after installation might take slightly longer as it initializes the new RAM.
- A 10% multi-core performance boost was observed in some benchmarks after upgrading from 16GB to 64GB (using two 32GB sticks).
- Even with the CL40 latency, the increased bandwidth of DDR5 provides real-world performance improvements over similarly priced DDR4 kits.
Frequently Asked Questions
Is this RAM compatible with my laptop?
This kit is designed for laptops compatible with DDR5 SODIMM memory, specifically those with Intel 12th Gen or newer, or AMD Ryzen 7000 Series processors. Always check your laptop's manufacturer specifications for exact compatibility.
Will this RAM make my laptop faster?
Upgrading from 16GB to 32GB can improve performance in scenarios involving heavy multitasking, demanding applications like video editing, or certain games that benefit from more RAM. It offers 50% faster data transfer rates compared to DDR4 at launch.
What is CL40 and does it matter?
CL40 refers to the CAS Latency, which is 40 clock cycles. While 4800MHz is a high frequency, the CL40 timing means its true latency is 16.666ns, which is higher than some faster DDR4 kits. For most users, the increased capacity and DDR5 bandwidth will be more noticeable than this specific latency figure.
Does this RAM support XMP or EXPO?
Yes, this Crucial DDR5 RAM kit supports both Intel XMP 3.0 and AMD EXPO profiles, allowing for optimized performance on compatible platforms.
Is it difficult to install laptop RAM?
Installing laptop RAM is generally straightforward. You'll need to open your laptop's back panel, locate the existing RAM slots, and carefully insert the new modules until they click into place. Many manufacturers provide guides or videos for their specific models.
Buying Guide
When you're looking at laptop RAM, you need to match the DDR generation (DDR5 in this case) and the form factor (SODIMM). The capacity (32GB) is how much memory your laptop will have, which is crucial for how many programs you can run smoothly. Speed (4800MHz) and CAS Latency (CL40) affect how fast that memory can be accessed, but for most everyday tasks and even many games, a higher capacity often makes a bigger difference than slightly faster timings.
Capacity (32GB)
Think of capacity like the size of your desk. A bigger desk (more GB) means you can have more applications, browser tabs, or large files open simultaneously without your computer slowing down or needing to constantly swap data to slower storage.
Type (DDR5)
This is the generation of memory. DDR5 is newer and generally faster than DDR4, but your laptop's motherboard needs to support it. It's like needing a specific type of fuel for your car; you can't put diesel in a gasoline engine.
Speed (4800MHz)
This is how quickly the memory can transfer data. Higher numbers mean faster transfers. It's like the speed limit on a highway; a higher limit means cars can potentially travel faster, but other factors also play a role.
CAS Latency (CL40)
This is a measure of the delay before the RAM can respond to a request. Lower numbers are better. While speed is the 'speed limit,' latency is like how long it takes for a car to accelerate to that speed. A lower CL means quicker responses, but it's often balanced against the overall speed.
Alternatives
If this kit doesn't quite fit, look for DDR5 SODIMM kits with higher speeds (e.g., 5200MHz, 5600MHz) and lower CAS Latency (e.g., CL38, CL36) for improved performance, or a smaller 16GB kit if 32GB is overkill for your needs.
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