Corsair Dominator Platinum Series 8GB (2 x 4GB) DDR4 4000MHz

Corsair Dominator Platinum Series 8GB (2 x 4GB) DDR4 4000MHz C19 Memory Kit (CMD8GX4M2B4000C19)

Corsair Dominator Platinum Series 8GB (2 x 4GB) DDR4 4000MHz C19 Memory Kit (CMD8GX4M2B4000C19)

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  • Using best of the best IC’s available leads to highly overclockable memory
  • Patented technology pulls performance-robbing heat away from the modules and allows Dominator memory to run at a cooler temperature.
  • Customize the look and feel of your memory with upgradable light bars and Dominator Airflow LED fan.
  • Dominator Platinum DDR4 is optimized and compatibility tested for the latest Intel 100 Series motherboards and offers higher frequencies, greater bandwidth, and lower power consumption.
  • XMP 2.0 support for trouble-free automatic overclocking. The Corsair Link Digital connector allows you to monitor your memory’s temperature for an optimal combination of performance and stability.

Specifications Overview

Model CMD8GX4M2B4000C19
Type 288-pin DIMM DDR4
Speed DDR4-4000 MHz
Size 8GB (2 x 4GB)
CAS Latency 19
Timing 19-23-23-45
First Word Latency 9.5 ns
Voltage 1.35 V
Heat Spreader
ECC Support

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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