CORSAIR Vengeance 64GB (2 x 32GB) 260-Pin DDR4 SO-DIMM 2666 RAM

Name: CORSAIR Vengeance 64GB (2 x 32GB) 260-Pin DDR4 SO-DIMM 2666
Brand: Corsair
SKU: CMSX64GX4M2A2666C18
Rating: 5.0 (16 reviews)

CORSAIR Vengeance 64GB (2 x 32GB) 260-Pin DDR4 SO-DIMM 2666 (PC4 21300) CMSX64GX4M2A2666C18

★★★★★

(16 reviews)

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Options (10)

	2400Mhz C16 (2 x 4GB) ddr4 $25.24
	2666Mhz C18 (2 x 4GB) ddr4 $29.99
	2400Mhz C16 (2 x 8GB) ddr4 $152.99
	2666Mhz C18 (2 x 8GB) ddr4 $149.99
	1600Mhz C10 (2 x 8GB) DDR3 $74.99
	1600Mhz C10 (1 x 8GB) DDR3 $39.99
	2666Mhz C18 (2 x 16GB) DDR4 $279.99
	2666Mhz C18 (4 x 16GB) ddr4 $232.98
	1600Mhz C9 (1 x 4GB) DDR3 $21.25
	1600Mhz C9 (2 x 4GB) DDR3 $39.99

CORSAIR Vengeance 64GB (2 x 32GB) 260-Pin DDR4 SO-DIMM DDR4 2666 (PC4 21300) Laptop Memory Model CMSX64GX4M2A2666C18 CAS Latency: 18 Timing: 18-18-18-43 Voltage: 1.20V Features: 64GB (2x32GB) DDR4 SODIMM kit for 9th and 10th Generation Intel Core i5 and i7 notebooks and NUCs 2666MHz 18-18-18-43 latency 1.2V Auto-overclocking with compatible notebooks (no BIOS configuration required)

CORSAIR Vengeance 64GB (2 x 32GB) 260-Pin DDR4 SO-DIMM 2666 image 1

CORSAIR Vengeance 64GB (2 x 32GB) 260-Pin DDR4 SO-DIMM 2666 image 2

Specifications Overview

Model	CMSX64GX4M2A2666C18
Type	260-pin DDR4 SODIMM
Speed	DDR4-2666 MHz
Size	64GB (2 x 32GB)
CAS Latency	18
Timing	18-18-18-43
First Word Latency	13.5 ns
Voltage	1.2 V
Heat Spreader	No
ECC Support	No

	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)

	2133	2400	2666	2800	2933	3000	3200	3300	3333	3400	3466	3600	3666	3733
13	12.19	10.83	9.75	9.29	8.86	8.67	8.13	7.88	7.80	7.65	7.50	7.22	7.09	6.96
14	13.13	11.67	10.50	10.00	9.55	9.33	8.75	8.48	8.40	8.24	8.08	7.78	7.64	7.50
15	14.06	12.50	11.25	10.71	10.23	10.00	9.38	9.09	9.00	8.82	8.66	8.33	8.18	8.04
16	15.00	13.33	12.00	11.43	10.91	10.67	10.00	9.70	9.60	9.41	9.23	8.89	8.73	8.57
17	15.94	14.17	12.75	12.14	11.59	11.33	10.63	10.30	10.20	10.00	9.81	9.44	9.27	9.11
18	16.88	15.00	13.50	12.86	12.27	12.00	11.25	10.91	10.80	10.59	10.39	10.00	9.82	9.64
19	17.82	15.83	14.25	13.57	12.96	12.67	11.88	11.52	11.40	11.18	10.96	10.56	10.37	10.18
20	18.75	16.67	15.00	14.29	13.64	13.33	12.50	12.12	12.00	11.76	11.54	11.11	10.91	10.72
21	19.69	17.50	15.75	15.00	14.32	14.00	13.13	12.73	12.60	12.35	12.12	11.67	11.46	11.25
22	20.63	18.33	16.50	15.71	15.00	14.67	13.75	13.33	13.20	12.94	12.69	12.22	12.00	11.79
23	21.57	19.17	17.25	16.43	15.68	15.33	14.38	13.94	13.80	13.53	13.27	12.78	12.55	12.32
24	22.50	20.00	18.00	17.14	16.37	16.00	15.00	14.55	14.40	14.12	13.85	13.33	13.09	12.86
25	23.44	20.83	18.75	17.86	17.05	16.67	15.63	15.15	15.00	14.71	14.43	13.89	13.64	13.39

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.