Patriot Viper Steel 4000 MHz CL19 DDR4 review

Memory (DDR4/DDR5) and Storage (SSD/NVMe) 357 Page 7 of 16 Published by


Hardware and Software used, temperatures

Hardware and Software used, temperatures


  • EVGA Z370 FTW (bios 1.09)


  • Intel Core i7-8700K (Coffee Lake)

Graphics Cards

  • AORUS Waterforce GeForce® GTX 1080 Ti Xtreme Edition 11G


  • • 2x 8GB DDR4 4000 MHz XMP and MHz Tweaked tested

CPU cooler

  • NZXT Kraken X62

Power Supply Unit

  • Seasonic Prime Titanium Plus 850 W

Mass storage

  • OCZ RD400 512 GB


  • AOC AG241QG up to 2560 x 1440

OS related Software

  • Windows 10 (latest patches & updates installed) 
  • DirectX 9/10/11/12 latest End User Runtime  (Download)
  • Nvidia GeForce driver latest (Download)

Following benchmarks were tested in theoretical part:

In practical part the following games were used, with FullHD (1920 x 1080) resolution, to avoid bottleneck caused by VGA (yeah, 1080 Ti is not a weak card, but still can limit FPS):

  • Battlefield 1- Ultra/TAA/DX11;
  • Deus Ex: Mankind Evolved - Ultra/AA x2/AF x16/DX 11
  • F1 2016 - Ultra, SMAA + TAA, AF x16;
  • Fallout 4 - Ultra, TAA, AF x16;
  • GTA V - V.High, AA x2, AF x16;
  • Watch Dogs 2 - Ultra/HMSSAO/SMAA/DX 11;
  • Witcher 3: Wild Hunt - Ultra/HBAO+/AA/Hairworks OFF/DX 11

We used the RTSS to measure the number of frames per second (average fps). The results presented in the graphs are the average of the results obtained in 3 runs. We will show you this setup running at 3200 and 3900 MHz (overclocked) later on in the article. Now for the last thing on this page. Thermal performance was measured with the pyrometer. 


We ran the HCI Design MemTest  6.0 for 15 minutes. The memory kit was operating at the XMP profile. At idle, the temperature was about 35° Celsius and it reached 10 degrees more under stress testing. Room temperature, at the time of testing, was about 22° degrees Celsius. You also need to keep in mind that the temps should be lower with a CPU air cooler than with an AIO.

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