Crucial Pro 64GB (2x32GB) DDR5 6400MHz RAM

Name: Crucial Pro 64GB (2x32GB) DDR5 6400MHz
Brand: Crucial
SKU: CP2K32G64C40U5B
Rating: 4.0 (42 reviews)

Crucial Pro 64GB (2x32GB) DDR5 6400MHz CL40 CP2K32G64C40U5B

★★★★☆

(42 reviews)

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Seller	Availability	Price	Shipping	Buy
In Stock	In Stock	$984.96		Buy
Last updated 42 minutes ago.
Out of Stock	Out of Stock	$1,374.69	-	Buy

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Options (5)

	32GB Kit (2x16GB) White 6400MHz $429.99
	32GB Kit (2x16GB) Black 6000MHz $485.00
	64GB Kit (2x32GB) Black 6000MHz $679.99
	32GB Kit (2x16GB) White 6000MHz $510.58
	32GB Kit (2x16GB) Black 6400MHz $399.99

COOL BLACK LOOK & FEEL: Our DDR5 Pro Overclocking Memory features a black, aluminum heat spreader with a unique, origami-based design that is both cool to the touch and an aesthetic win for any rig
ACCELERATED PERFORMANCE: 6400MHz at CL40 for stable overclocking performance and 25% lower latency for higher frame rates per second. Every millisecond gained in fast-paced gameplay counts
INTEL & AMD COMPATIBLE: Compatible with Intel Core Ultra series 2 & 13-14th Gen desktop CPUs and above. Also, compatible with AMD Ryzen 9000 Series desktop CPUs and above (Verify compatibility with motherboard manufacturer)
FLEXIBILITY: By supporting both Intel XMP 3.0 and AMD EXPO on the same module, Crucial offers you ultimate flexibility with your build
MICRON QUALITY & RELIABILITY: With 45 years of memory expertise, Micron delivers cutting-edge engineering and superior component and module-level testing; including limited lifetime warranty

Crucial Pro 64GB (2x32GB) DDR5 6400MHz image 1

Crucial Pro 64GB (2x32GB) DDR5 6400MHz image 2

Crucial Pro 64GB (2x32GB) DDR5 6400MHz image 3

Crucial Pro 64GB (2x32GB) DDR5 6400MHz image 4

Crucial Pro 64GB (2x32GB) DDR5 6400MHz image 5

Crucial Pro 64GB (2x32GB) DDR5 6400MHz image 6

Specifications Overview

Model	CP2K32G64C40U5B
Release Date	February 2025 * First availability for purchase, it may not correspond to the actual market launch date.
Type	288-pin DDR5 DIMM
Speed	DDR5-6400 MHz
Size	64GB (2 x 32GB)
CAS Latency	40
Timing	40-40-40-84
First Word Latency	12.5 ns
Voltage	1.35 V
Heat Spreader	Yes
ECC Support	No
Color	Black

	Old Name	Current Name	Branding	Data Speed	Port
USB 2.0	USB 2.0	USB 2.0	Hi-Speed USB	480 Mbit/s	diverse
USB 3.0	USB 3.1 Gen 1	USB 3.2 Gen 1x1	SuperSpeed USB	5 Gbit/s	diverse
USB 3.1	USB 3.1 Gen 2	USB 3.2 Gen 2x1	SuperSpeed USB 10Gbps	10 Gbit/s	diverse
USB 3.2	USB 3.2 Gen 2x2	USB 4.0 Gen 2x2	USB4 20Gbps	20 Gbit/s	only USB-C
USB4	USB 4.0 Gen 3x2	USB4 1.0	USB4 40Gbps	40 Gbit/s	only USB-C
USB4v2	USB 4.0 Gen 4	USB4 2.0	USB4 80Gbps	80-120 Gbit/s	only USB-C

RAM First Word Latency Table (nanoseconds)

Latency is measured in nanoseconds, which is a combination of frequency and CAS. Both frequency increases and latency decreases result in better system performance (when latency is the same, always prefer higher frequency if possible).

Frequency (MT/s)

	4400	4800	5000	5200	5600	6000	6200	6400	6600	6800	7000	7200	7400	7600
36	16.36	15.00	14.40	13.85	12.86	12.00	11.61	11.25	10.91	10.59	10.29	10.00	9.73	9.47
37	16.82	15.42	14.80	14.23	13.21	12.33	11.94	11.56	11.21	10.88	10.57	10.28	10.00	9.74
38	17.27	15.83	15.20	14.62	13.57	12.67	12.26	11.88	11.52	11.18	10.86	10.56	10.27	10.00
39	17.73	16.25	15.60	15.00	13.93	13.00	12.58	12.19	11.82	11.47	11.14	10.83	10.54	10.26
40	18.18	16.67	16.00	15.38	14.29	13.33	12.90	12.50	12.12	11.76	11.43	11.11	10.81	10.53
41	18.64	17.08	16.40	15.77	14.64	13.67	13.23	12.81	12.42	12.06	11.71	11.39	11.08	10.79
42	19.09	17.50	16.80	16.15	15.00	14.00	13.55	13.13	12.73	12.35	12.00	11.67	11.35	11.05
43	19.55	17.92	17.20	16.54	15.36	14.33	13.87	13.44	13.03	12.65	12.29	11.94	11.62	11.32
44	20.00	18.33	17.60	16.92	15.71	14.67	14.19	13.75	13.33	12.94	12.57	12.22	11.89	11.58
45	20.45	18.75	18.00	17.31	16.07	15.00	14.52	14.06	13.64	13.24	12.86	12.50	12.16	11.84
46	20.91	19.17	18.40	17.69	16.43	15.33	14.84	14.38	13.94	13.53	13.14	12.78	12.43	12.11
47	21.36	19.58	18.80	18.08	16.79	15.67	15.16	14.69	14.24	13.82	13.43	13.06	12.70	12.37
48	21.82	20.00	19.20	18.46	17.14	16.00	15.48	15.00	14.55	14.12	13.71	13.33	12.97	12.63
49	22.27	20.42	19.60	18.85	17.50	16.33	15.81	15.31	14.85	14.41	14.00	13.61	13.24	12.89
50	22.73	20.83	20.00	19.23	17.86	16.67	16.13	15.63	15.15	14.71	14.29	13.89	13.51	13.16
51	23.18	21.25	20.40	19.62	18.21	17.00	16.45	15.94	15.45	15.00	14.57	14.17	13.78	13.42
52	23.64	21.67	20.80	20.00	18.57	17.33	16.77	16.25	15.76	15.29	14.86	14.44	14.05	13.68

CAS (clock cycles) Lower latency means faster memory.

Distribution of First Word Latencies for Similar RAM Modules

The histogram below shows the distribution of first word latencies (in nanoseconds) for all RAM modules of the same DDR type and frequency in our database. Each bar represents the number of modules that fall within a specific latency range. The highlighted bar indicates the latency of the currently selected RAM module.