G.SKILL Ripjaws V Series 64GB (8 x 8GB) DDR4 4000MHz

G.SKILL Ripjaws V Series 64GB (8 x 8GB) DDR4 4000MHz 288-Pin F4-4000C15Q2-64GVK

G.SKILL Ripjaws V Series 64GB (8 x 8GB) DDR4 4000MHz 288-Pin F4-4000C15Q2-64GVK

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  • G.SKILL Ripjaws V Series 64GB (8 X 8GB)
  • DDR4 4000 (PC4 32000)
  • Timing 15-16-16-36
  • Voltage 1.5V
  • No Fan Included

Specifications Overview

Model F4-4000C15Q2-64GVK
Type 288-pin DIMM DDR4
Speed DDR4-4000 MHz
Size 64GB (8 x 8GB)
CAS Latency 15
Timing 15-16-16-36
First Word Latency 7.5 ns
Voltage 1.5 V
Heat Spreader
ECC Support
Color Black
Samsung B-Die

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
15 8.82 8.66 8.33 8.18 8.04 7.89 7.76 7.50 7.26 7.14 7.03 6.98 6.92 6.82
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.

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