Corsair Vengeance RGB PRO 64GB (8x8GB) DDR4 4000 RAM

Corsair Vengeance RGB PRO 64GB (8x8GB) DDR4 4000 (PC4-32000) C19 CMW64GX4M8X4000C19

Corsair Vengeance RGB PRO 64GB (8x8GB) DDR4 4000 (PC4-32000) C19 CMW64GX4M8X4000C19

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  • Dynamic Multi-Zone RGB Lighting
  • Next Generation Software
  • Custom Performance PCB
  • Tightly Screened Memory
  • Maximum Bandwidth And Tight Response Times

Specifications Overview

Model CMW64GX4M8X4000C19
Type 288-pin DIMM DDR4
Speed DDR4-4000 MHz
Size 64GB (8 x 8GB)
CAS Latency 19
Timing 19-23-23-45
First Word Latency 9.5 ns
Voltage 1.35 V
Heat Spreader
ECC Support
LED Color RGB

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.

Cheapest alternatives with equal or better performance

-0.62ns Latency

-0.50ns Latency

-0.75ns Latency


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