G.SKILL 16GB (2x8GB) TridentZ DDR4 4000MHz

G.SKILL 16GB (2x8GB) TridentZ DDR4 PC4-32000 4000MHz 288-Pin F4-4000C19D-16GTZKW

G.SKILL 16GB (2x8GB) TridentZ DDR4 PC4-32000 4000MHz 288-Pin F4-4000C19D-16GTZKW

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  • G.SKILL Tridentz Series Model F4-4000C19D-16GTZKW
  • Capacity 16GB (2 X 8GB) Type 288-Pin DDR4 SDRAM Speed DDR4 4000 (PC4 32000) Cas Latency 19
  • 19-21-21-41 Voltage 1.35V ECC No Buffered/Registered Unbuffered
  • Multi-Channel Kit Dual Channel Kit Color Black / White Heat Spreader Yes

Specifications Overview

Model F4-4000C19D-16GTZKW
Type 288-pin DIMM DDR4
Speed DDR4-4000 MHz
Size 16GB (2 x 8GB)
CAS Latency 19
Timing 19-21-21-41
First Word Latency 9.5 ns
Voltage 1.35 V
Heat Spreader
ECC Support
Color Black/White
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
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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