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Our testing methods
Most of the numbers you'll see on the following pages were captured with OCAT, a software utility that uses data from the Event Timers for Windows API to tell us when critical events happen in the graphics pipeline. We run each test run at least three times and take the median of those runs where applicable to arrive at a final result.

As ever, we did our best to deliver clean benchmark numbers. Our test systems were configured like so:

Processor Core i7-8700K
Motherboard Gigabyte Z370 Aorus Gaming 7
Chipset Intel Z370
Memory size 16GB (2 DIMMs)
Memory type G.Skill Trident Z
DDR4-3600
Memory timings 16-16-16-36 2T
Hard drive Samsung 960 Pro 500GB
Kingston HyperX 480GB
2x Corsair Neutron XT 480GB
Power supply Seasonic Prime Platinum 1000W
OS Windows 10 Pro with Fall Creators Update

 

  Driver revision GPU base
core clock
(MHz)
GPU boost
clock
(MHz)
Memory
clock
(MHz)
Memory
size
(MB)
Radeon RX 580 Radeon Software 17.10.3 --- 1411 2000 8192
Radeon RX Vega 56 1156 1471 1600 8192
Radeon RX Vega 64 1274 1546 1890 8192
EVGA GeForce GTX 1070 SC2 GeForce 388.13 1594 1784 2002 4096
GeForce GTX 1080 Founders Edition 1607 1733 2500 8192
GeForce GTX 1080 Ti Founders Edition 1481 1582 2750 11264
GeForce GTX 1070 Ti Founders Edition 1607 1683 2000 8192
EVGA GeForce GTX 1060 6GB SC 1607 1835 2000 6144

Thanks to Intel, Corsair, G.Skill, Kingston, and Gigabyte for helping to outfit our test rigs with some of the finest hardware available. AMD, Nvidia, and EVGA supplied the graphics cards for testing, as well. Behold our fine Gigabyte Z370 Aorus Gaming 7 motherboard before it got buried beneath seven graphics cards and a CPU cooler:

Unless otherwise specified, image quality settings for the graphics cards were left at the control panel defaults. Vertical refresh sync (vsync) was disabled for all tests. We tested each graphics card at a resolution of 2560x1440 and 144 Hz, unless otherwise noted.

The tests and methods we employ are generally publicly available and reproducible. If you have questions about our methods, hit our forums to talk with us about them.