Crucial
Crucial 64GB DDR5 RAM (CT2K32G56C46U5)
Bottom line: The Crucial 64GB DDR5 RAM ($1,099.99 on Amazon as of 2026-10-31 10:13 UTC, orderable but not in stock): 64GB total as a 2x32GB kit, leaving two slots free on four-DIMM boards; main trade-off: CL46 timings are looser than enthusiast DDR5-5600 kits.
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*Price sourced from Amazon.com. Last updated 2026-10-31. Price and availability subject to change.
Pros & Cons
Pros
- ✓ 64GB total as a 2x32GB kit, leaving two slots free on four-DIMM boards
- ✓ Rated 5600MHz (PC5-44800), also runs at 5200MHz or 4800MHz
- ✓ XMP 3.0 and AMD EXPO profiles on the same module
- ✓ Low 1.1V operating voltage
- ✓ Micron-built modules tested at the component and module level
Cons
- ✗ CL46 timings are looser than enthusiast DDR5-5600 kits
- ✗ Non-ECC, so it doesn't suit ECC workstation or server builds
- ✗ DDR5 only, won't fit DDR4 motherboards
- ✗ 5600MHz needs a CPU and board that support it, or it runs slower
Manufacturer description
The Crucial 64GB DDR5 desktop memory kit (CT2K32G56C46U5) pairs two 32GB UDIMMs for 64GB of capacity. That is enough headroom for 4K video timelines, large code builds, virtual machines and a game running alongside a stack of browser tabs. Each 288-pin module is rated at 5600MHz (PC5-44800) with CAS latency 46 and runs at a low 1.1V. If your platform can't run 5600MHz, the kit also works at 5200MHz or 4800MHz, so it drops into boards that top out at lower DDR5 speeds. Crucial targets 12th and 13th Gen Intel Core and AMD Ryzen 7000 Series systems. Intel XMP 3.0 and AMD EXPO profiles live on…
SpecPicks Verdict
SpecPicks scored Crucial 64GB DDR5 RAM 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
Is the Crucial CT2K32G56C46U5 two sticks or one?
It is a two-module kit: 2x32GB UDIMMs for 64GB total. Each module is a 288-pin, dual-rank (2Rx8) DDR5 stick.
Will this RAM work with AMD Ryzen 7000 and Intel 12th or 13th Gen CPUs?
Yes. Crucial lists compatibility with 12th and 13th Gen Intel Core processors and AMD Ryzen 7000 Series CPUs. The modules carry both Intel XMP 3.0 and AMD EXPO profiles.
What speed and timings does this Crucial DDR5 kit run at?
It is rated at 5600MHz (PC5-44800) with CAS latency 46 at 1.1V. If your platform doesn't support 5600MHz, the kit also runs at 5200MHz or 4800MHz.
Does this memory support ECC?
No. These are non-ECC unbuffered DIMMs (UDIMM), meant for consumer desktop boards, not ECC workstation or server platforms.
Can I use this kit in a DDR4 motherboard or a laptop?
No. It is DDR5 in a full-size 288-pin desktop UDIMM form factor, so it needs a DDR5 desktop motherboard. It won't fit DDR4 slots or laptop SO-DIMM slots.
Key Features
- Boosts System Performance: 64GB DDR5 RAM desktop memory that operates at 5600MHz, 5200MHz, or 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 13th 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 = UDIMM, pin count = 288-pins, PC speed = PC5-44800, voltage = 1.1V, rank and configuration = 2Rx8
Full Specifications
| Brand | Crucial |
|---|---|
| Voltage | 1.1 volts |
| RAM Size | 64 GB |
| Model Name | Crucial DDR5 5600 MHz DRAM |
| Unit Count | 1 Count |
| Form Factor | DIMM |
| Memory Speed | 5600 MHz |
| Model Number | CT2K32G56C46U5 |
| Compatibility | PC |
| Item Type Name | DDR5 Desktop Memory |
| Number of Pins | 288 |
| Mfr Part Number | CT2K32G56C46U5 |
| Memory Generation | DDR5 |
| Compatible Devices | Desktop |
| Data Transfer Rate | 5600 MHz |
| Memory Form Factor | UDIMM |
| Additional Features | Registered Memory |
| Computer Memory Size | 64 GB |
| Warranty Description | Limited Lifetime Warranty |
| RAM Memory Technology | DDR5 |
| Full listing title | Crucial 64GB DDR5 RAM, 5600MHz (or 5200MHz or 4800MHz) Desktop Memory Kit, UDIMM 288-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT2K32G56C46U5 |
Hardware benchmark data
Ready to buy?
Crucial 64GB DDR5 RAM, 5600MHz (or 5200MHz or 4800MHz) Desktop Memory Kit, UDIMM 288-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT2K32G56C46U5 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 2026-10-31. Price and availability subject to change.
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