Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz RAM

Name: Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz
Brand: Crucial
SKU: CP2K16G64C32U5B
Rating: 4.0 (72 reviews)

Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz CL32 Black CP2K16G64C32U5B

★★★★☆

(72 reviews)

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Options (4)

	White 32GB Kit (2x16GB) 6400 CL32 $389.99
	Black 64GB Kit (2x32GB) 6400 CL40 $870.51
	White 32GB Kit (2x16GB) 6400 CL38 $429.99
	Black 32GB Kit (2x16GB) 6400 CL38 $359.99

Game Changing Speed: 32GB DDR5 overclocking desktop RAM kit (2x16GB) that operates at a speed up to 6400MHz at CL32—designed to boost gaming, multitasking, and overall system responsiveness
Low-Latency Performance: In fast-paced gameplay, every millisecond counts. Benefit from lower latency at CL32 for higher frame rates and smooth gameplay—perfect for memory-intensive AAA titles
Elite Compatibility: Enjoy stable overclocking with Intel XMP 3.0 and AMD EXPO. Compatible with Intel Core Ultra Series 2, Ryzen 9000 Series desktop CPUs, and newer
Striking Style, Elite Quality: Featuring a battle-ready heat spreader in Snow Fox White or Stealth Matte Black camo, this DDR5 memory delivers bold, tactical aesthetics for your build
Overclocking: Extended timings of 32-40-40-103 ensure stable overclocking and reduced latency—powered by Micron’s advanced memory technology for next-gen computing

Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz image 1

Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz image 2

Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz image 3

Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz image 4

Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz image 5

Crucial Pro Overclocking 32GB (2x16GB) DDR5 6400MHz image 6

Specifications Overview

Model	CP2K16G64C32U5B
Release Date	October 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	32GB (2 x 16GB)
CAS Latency	32
Timing	32-40-40-103
First Word Latency	10 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
32	14.55	13.33	12.80	12.31	11.43	10.67	10.32	10.00	9.70	9.41	9.14	8.89	8.65	8.42
33	15.00	13.75	13.20	12.69	11.79	11.00	10.65	10.31	10.00	9.71	9.43	9.17	8.92	8.68
34	15.45	14.17	13.60	13.08	12.14	11.33	10.97	10.63	10.30	10.00	9.71	9.44	9.19	8.95
35	15.91	14.58	14.00	13.46	12.50	11.67	11.29	10.94	10.61	10.29	10.00	9.72	9.46	9.21
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.