Corsair Vengeance LPX 16GB (2x8GB) DDR4 4000 CMK16GX4M2K4000C19 RAM

Name: Corsair Vengeance LPX 16GB (2x8GB) DDR4 4000 CMK16GX4M2K4000C19
Brand: Corsair
SKU: CMK16GX4M2K4000C19
Rating: 5.0 (2 reviews)

Corsair Vengeance LPX 16GB (2x8GB) DDR4 4000 (PC4-32000) C19 CMK16GX4M2K4000C19

★★★★★

(2 reviews)

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Designed For High-Performance Overclocking
Designed For Great Looks
Performance And Compatibility
Low-Profile Heat Spreader Design

Corsair Vengeance LPX 16GB (2x8GB) DDR4 4000 CMK16GX4M2K4000C19 image 1

Corsair Vengeance LPX 16GB (2x8GB) DDR4 4000 CMK16GX4M2K4000C19 image 2

Corsair Vengeance LPX 16GB (2x8GB) DDR4 4000 CMK16GX4M2K4000C19 image 3

Corsair Vengeance LPX 16GB (2x8GB) DDR4 4000 CMK16GX4M2K4000C19 image 4

Corsair Vengeance LPX 16GB (2x8GB) DDR4 4000 CMK16GX4M2K4000C19 image 5

Specifications Overview

Model	CMK16GX4M2K4000C19
Release Date	September 2019 * First availability for purchase, it may not correspond to the actual market launch date.
Type	288-pin DDR4 DIMM
Speed	DDR4-4000 MHz
Size	16GB (2 x 8GB)
CAS Latency	19
Timing	19-23-23-45
First Word Latency	9.5 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)

	3400	3466	3600	3666	3733	3800	3866	4000	4133	4200	4266	4300	4333	4400
16	9.41	9.23	8.89	8.73	8.57	8.42	8.28	8.00	7.74	7.62	7.50	7.44	7.39	7.27
17	10.00	9.81	9.44	9.27	9.11	8.95	8.79	8.50	8.23	8.10	7.97	7.91	7.85	7.73
18	10.59	10.39	10.00	9.82	9.64	9.47	9.31	9.00	8.71	8.57	8.44	8.37	8.31	8.18
19	11.18	10.96	10.56	10.37	10.18	10.00	9.83	9.50	9.19	9.05	8.91	8.84	8.77	8.64
20	11.76	11.54	11.11	10.91	10.72	10.53	10.35	10.00	9.68	9.52	9.38	9.30	9.23	9.09
21	12.35	12.12	11.67	11.46	11.25	11.05	10.86	10.50	10.16	10.00	9.85	9.77	9.69	9.55
22	12.94	12.69	12.22	12.00	11.79	11.58	11.38	11.00	10.65	10.48	10.31	10.23	10.15	10.00
23	13.53	13.27	12.78	12.55	12.32	12.11	11.90	11.50	11.13	10.95	10.78	10.70	10.62	10.45
24	14.12	13.85	13.33	13.09	12.86	12.63	12.42	12.00	11.61	11.43	11.25	11.16	11.08	10.91
25	14.71	14.43	13.89	13.64	13.39	13.16	12.93	12.50	12.10	11.90	11.72	11.63	11.54	11.36

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.