Crucial 64GB DDR5 RAM Kit (2x32GB) (CT2K32G48C40S5)
Bottom line: The Crucial 64GB DDR5 RAM Kit ($999.98 on Amazon as of 2026-10-06): 64GB total (2x32GB) handles VMs, 4K timelines and heavy multitasking without swapping; main trade-off: 4800MHz CL40 is entry-tier DDR5 speed; faster 5600/6400 SODIMM kits exist.
As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 64GB total (2x32GB) handles VMs, 4K timelines and heavy multitasking without swapping
- ✓ 4800MHz PC5-38400 baseline speed, the JEDEC spec for 12th Gen Intel DDR5 laptops
- ✓ Supports both Intel XMP 3.0 and AMD EXPO profiles on the same module
- ✓ Micron-made and tested at component and module level, backed by 42 years of memory work
Cons
- ✗ 4800MHz CL40 is entry-tier DDR5 speed; faster 5600/6400 SODIMM kits exist
- ✗ CL40 latency is high in absolute terms compared to mature DDR4 SODIMM kits
- ✗ Non-ECC only - not an option for workstation laptops that require error correction
- ✗ 262-pin SODIMM fits laptops only; will not work in a desktop DIMM slot
Manufacturer description
Boosts System Performance: 64GB DDR5 RAM laptop memory kit (2x32GB) that operates at 4800MHz to improve multitasking and system responsiveness for smoother performance Accelerated gaming performance: Every millisecond gained in fast-paced gameplay counts—power through heavy workloads and benefit from versatile downclocking and higher frame rates Optimized DDR5 compatibility: Best for 12th Gen Intel Core and AMD Ryzen 7000 Series processors — Intel XMP 3.0 and AMD EXPO also supported on the same RAM module
SpecPicks Verdict
SpecPicks scored Crucial 64GB DDR5 RAM Kit using a rating × review-volume × price-fit model applied to published specs and reviews across the memory (ram) category. Crucial's memory (ram) lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for memory (ram) of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will this 64GB kit work in my laptop?
It fits 262-pin DDR5 SODIMM slots and is optimized for 12th Gen Intel Core and AMD Ryzen 7000 Series systems. Confirm your laptop has two accessible SODIMM slots and supports 32GB per slot before ordering.
What speed and timings does this kit run at?
4800MHz, CL40, rated PC5-38400 at 1.1V. Intel XMP 3.0 and AMD EXPO profiles are supported on the module, and DDR5 downclocking lets it drop to a slower supported speed if your memory controller requires it.
Is this one 64GB stick or two?
Two modules of 32GB each (part number CT2K32G48C40S5), so you get a matched dual-channel pair. You need both slots free to install the full 64GB.
Does this memory have ECC?
No. It is listed as non-ECC with a 2Rx8 rank and configuration. If your machine requires ECC SODIMMs for workstation certification, this kit is not the right choice.
Is 64GB overkill for gaming?
For gaming alone, yes - most titles are satisfied well below 64GB. This capacity pays off when you game alongside streaming, VMs, local AI models, or large creative projects. Crucial markets it for heavy workloads as much as frame rates.
Key Features
- Boosts System Performance: 64GB DDR5 RAM laptop memory kit (2x32GB) that operates at 4800MHz to improve multitasking and system responsiveness for smoother performance
- Accelerated gaming performance: Every millisecond gained in fast-paced gameplay counts—power through heavy workloads and benefit from versatile downclocking and higher frame rates
- Optimized DDR5 compatibility: Best for 12th Gen Intel Core and AMD Ryzen 7000 Series processors — Intel XMP 3.0 and AMD EXPO also supported on the same RAM module
- Trusted Micron Quality: Backed by 42 years of memory expertise, this DDR5 RAM is rigorously tested at both component and module levels, ensuring top performance and reliability
- ECC type=non-ECC, Form Factor=SODIMM, Pin count=262-pin, PC speed=PC5-38400, Voltage=1.1V, Rank and Configuration=2Rx8
Full Specifications
| Size | 64GB Kit (2x32GB) |
|---|---|
| Brand | Crucial |
| Color | Multicolor |
| Model | CT2K32G48C40S5 |
| Warranty | Limited Lifetime Warranty |
| UnitCount | 2 |
| ReleaseDate | 2022-02-22T00:00:01Z |
| Manufacturer | Crucial |
| ItemPartNumber | CT2K32G48C40S5 |
| Full listing title | Crucial 64GB DDR5 RAM Kit (2x32GB), 4800MHz CL40 Laptop Memory - SODIMM 262-Pin - Compatible with 12th Intel Core - CT2K32G48C40S5 |
Ready to buy?
Crucial 64GB DDR5 RAM Kit (2x32GB), 4800MHz CL40 Laptop Memory - SODIMM 262-Pin - Compatible with 12th Intel Core - CT2K32G48C40S5 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.
Related Memory (RAM)
More guides & deep dives from the SpecPicks archive
Browse all articles & guides →- RTX 4070 Super vs RX 7800 XT — Which to Buy in 2026
- Emulation Hardware in 2026: FPGA, Software, and Cart-Reader Ecosystems
- How to Build a Windows 98 Retro PC in 2026
- The Complete Voodoo5 5500 AGP Driver Guide (2026 Edition)
- Best 1440p Gaming GPUs in 2026
- Best Budget Gaming PC Build 2026 — ~$1,000 ($800 on Sale)
- Best Retro Handhelds in 2026 — From $35 to $500
More reviews from the SpecPicks archive
Browse all reviews →- Best Budget AIO CPU Cooler for Gaming PCs (2026)
- Gunnir Arc B580 vs RTX 5090D on DeepSeek: The Budget AI-Rig Upset Explained
- Grok 4.5 Tops AutomationBench at 51%: Cloud Score vs Local-Rig Reality
- Sega Saved Nvidia in 1996: The NV1 Gamble That Shaped Every GPU
- Best SATA SSD to Upgrade a PS4 Pro in 2026: Faster Loads on a Budget
- Retro Console Modding Services: What to Expect in 2026
- GPT-5.6 Sol Nearly Matches Fable 5 at a Third the Cost: The Local-Rig Angle
- What a $15 Raspberry Pi Zero W Can Still Do in 2026
- Can Local Qwen 3.6 Match Frontier Models at Canvas Code?
- 1440p 165Hz vs 4K 60Hz: ASUS TUF VG27 vs SANSUI 27" for Gaming
- Best GPU for Local LLMs Under $300: Why the RTX 3060 12GB Still Wins
- RTX 3060 12GB vs RTX 4070 12GB for Qwen2.5 14B (2026)
- Build a Raspberry Pi 4 8GB RetroPie Emulation Station in 2026
- Best Sim Racing Wheel Setup for Beginners in 2026
- Gemma 4 31B on a 12GB RTX 3060: Quantization, VRAM, and Real tok/s
- GeForce4 Ti 4600 tuning guide — ForceWare, Detonator, and XP/98 driver pairing
- Sub-$300 4K Mini-LED Gaming Monitors Hit the Mainstream
- Linux vs Windows 11: AMD Ryzen 9 9950X3D Performance
- Forza Horizon 6 on Steam Deck: Best Settings, Dock & Storage in 2026
- Raspberry Pi 4 8GB as a Low-Power Quake 3 / OpenArena / UT99 Dedicated Server (2026 Build Log)
- Best Steam Deck Docked Setup for a 4K Desk in 2026: Dock, Monitor, Storage
- Ryzen 5 5600G vs Ryzen 7 5700X for a No-GPU Home Server
- Beyond LLMs: How Agent Logic Scales Enterprise AI
- Patch-to-Exploit in Hours: Why a Local Security LLM Rig Now Makes Sense
Earliest SpecPicks reviews
Browse full archive →- Best GPU for Llama 3.1 8B (2026)
- Best GPU for Qwen 3 14B (2026)
- Best GPU for Qwen 3 32B (2026)
- Best GPU for Llama 3.1 70B (2026)
- Best GPU for DeepSeek-R1 32B (2026)
- Best GPU for Llama 3.1 405B (2026)
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 14B on NVIDIA GeForce RTX 5090
- How to run Qwen 3 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 70B on NVIDIA GeForce RTX 5090
- How to run DeepSeek-R1 32B on NVIDIA GeForce RTX 5090
- How to run Llama 3.1 8B on NVIDIA GeForce RTX 4090