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Crucial 64GB DDR5 RAM 5600MHz (or 5200MHz or 4800MHz) Laptop Memory, SODIMM 262-Pin, Compatible with Latest Intel Core Ultra and AMD Ryzen 8000 & Above – CT64G56C46S5
Crucial

Crucial 64GB DDR5 RAM 5600MHz Laptop Memory (CT64G56C46S5)

Bottom line: The Crucial 64GB DDR5 RAM 5600MHz Laptop Memory ($1,199.99 on Amazon as of 2026-10-31 10:13 UTC): Single 64GB SODIMM module leaves a second slot free for up to 128GB; main trade-off: CAS latency 46 is looser than lower-latency DDR5 kits.

$1199.99 on Amazon, checked (price may vary)

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Buy on Amazon — $1,199.99 Compare to similar memory (ram)

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For desktop and laptop memory upgrades, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-31. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Single 64GB SODIMM module leaves a second slot free for up to 128GB
  • ✓ Runs at 5600MHz, auto-downclocks to 5200 or 4800MHz for compatibility
  • ✓ Intel XMP 3.0 and AMD EXPO profiles on one module
  • ✓ Micron-made DRAM with module-level testing

Cons

  • ✗ CAS latency 46 is looser than lower-latency DDR5 kits
  • ✗ Fits only Intel Core Ultra/14th Gen and Ryzen 8000+ laptops
  • ✗ Sold as a single stick, so no dual-channel from one purchase
  • ✗ Premium pricing typical of 64GB-density modules

Manufacturer description

CT64G56C46U5 is the Crucial 64GB DDR5 laptop module that operates at the speed of 5600MHz and has a CAS Latency of 46. It is an SODIMM and conforms to the industry standard DDR5 SODIMM layout of 262 pins. It is compatible with systems that can take DDR5-5600 SODIMM memory.

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SpecPicks Verdict

SpecPicks scored Crucial 64GB DDR5 RAM 5600MHz Laptop Memory 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.

Key Features

  • High performance 5600MHz & high density 64GB module right out-of-the-box: Empowers your system to multitask better, load, analyze, edit, and render faster, game with higher frame rates, uncover data insights faster, enhance productivity to save time
  • Enhanced productivity for creatives and professionals: 64GB DDR5, 5600MHz high-speed RAM improving multitasking and workflow efficiency 5600MHz that can downlock if system only supports 5200MHz or 4800MHz
  • Seamless high-bandwidth RAM: 64GB DDR5 RAM compatible with latest Intel Core Ultra & 14th Gen and AMD Ryzen 8000 Series and above laptops
  • Micron quality and reliability: As one of only three global memory manufacturers, and with 45 years of memory expertise, Micron delivers cutting-edge engineering and superior component and module-level testing for all Crucial DRAM products
  • Enhanced Compatibility: Intel XMP 3.0 and AMD EXPO supported on the same RAM module

Full Specifications

BrandCrucial
Voltage1.1 Volts
RAM Size64 GB
Model Name64GB DDR5 RAM 5600MHz Laptop Memory
Form FactorSO-DIMM
Memory Speed5600 MHz
Model NumberCT64G56C46S5
Number of Pins262
Mfr Part NumberCT64G56C46S5
Memory GenerationDDR5
Compatible DevicesLaptop
Data Transfer Rate6400 MHz
Memory Form FactorSODIMM
Additional FeaturesRegistered Memory
Computer Memory Size64 GB
Warranty DescriptionLimited Lifetime Warranty
RAM Memory TechnologyDDR5
Enhanced CompatibilityIntel XMP 3.0 and AMD EXPO supported on the same RAM module
Seamless high-bandwidth RAM64GB DDR5 RAM compatible with latest Intel Core Ultra & 14th Gen and AMD Ryzen 8000 Series and above laptops
Column Address Strobe Latency46
Full listing titleCrucial 64GB DDR5 RAM 5600MHz (or 5200MHz or 4800MHz) Laptop Memory, SODIMM 262-Pin, Compatible with Latest Intel Core Ultra and AMD Ryzen 8000 & Above – CT64G56C46S5

Hardware benchmark data

Ready to buy?

Crucial 64GB DDR5 RAM 5600MHz (or 5200MHz or 4800MHz) Laptop Memory, SODIMM 262-Pin, Compatible with Latest Intel Core Ultra and AMD Ryzen 8000 & Above – CT64G56C46S5 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.

Buy on Amazon — $1,199.99

*Price sourced from Amazon.com. Last updated 2026-10-31. Price and availability subject to change.

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Crucial 64GB DDR5 RAM 5600MHz (or 5200MHz or 4800MHz) Laptop Memory, SODIMM 262-Pin, Compatible with Latest Intel Core Ultra and AMD Ryzen 8000 & Above – CT64G56C46S5
$1,199.99
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