Our GPU test rig uses Intel's X99 platform. Specifically, we use the Asus Rampage V Extreme paired with an Intel Core i7-5960X
. This combination gives us 40 PCI-E 3.0 lanes to play with, meaning that even if we test 4-way SLI set-ups, we'll have available the maximum possible bandwidth. With eight cores and 16 threads via HyperThreading, the CPU ensures even the most multi-threaded games won't be bottlenecked, and we've overclocked it to 4.2GHz as well with a baseclock of 127.3MHz, a multiplier of 33 and a vcore of 1.25V, further alleviating CPU bottlenecks. The CPU is paired with 16GB (4 x 4GB) of Corsair Vengeance LPX DDR4 clocked at 2,667MHz and cooled by a Corsair Hydro Series H75
The rig is powered by the Corsair AX1500i, which has enough wattage and 8-pin PCI-E power connectors to deal with any multi-GPU set-up we care to throw at it. It's all housed inside a Corsair Graphite Series 760T
, which is spacious enough for 4-way set-ups with any card. The final component is an OCZ Vector 180
960GB SSD, giving us plenty of space for game installs.
Our results come from a mix of built-in benchmarks and custom, manually-played sections, depending on the game. We typically use FRAPS to record the average and minimum frame rates, but may use a game's own benchmark measurement tools in the event FRAPS doesn't work (e.g. with certain DX12 titles). All benchmarks are repeated at least three times to ensure consistency. We test at 1,920 x 1,080 (1080p) and 2,560 x 1,440 (1440p), as well as at 3,840 x 2,160 (4K) with higher end cards. The operating system is an up-to-date copy of Windows 10 64-bit.
AMD Graphics Cards
- AMD Radeon R9 Fury X 4GB - 1,050MHz GPU, 1GHz HBM (Radeon Software Crimson 16.6.1)
- Sapphire Radeon R9 390X Nitro 8GB - 1,080MHz GPU, 6GHz GDDR5 (Radeon Software Crimson 16.6.1)
Nvidia Graphics Cards
- EVGA GeForce GTX 1080 FTW 8GB - 1,721MHz GPU (1,860MHz boost), 10GHz GDDR5X (GeForce 368.39)
- Asus GeForce GTX 1070 Strix 8GB - 1,657MHz GPU (1,860MHz boost), 8GHz GDDR5 (GeForce 368.39)
- Nvidia GeForce GTX 980 Ti 6GB - 1,000MHz GPU (1,075MHz boost), 7GHz GDDR5 (GeForce 368.22)
- Nvidia GeForce GTX 980 4GB - 1,126MHz GPU (1,216MHz boost), 7GHz GDDR5 (GeForce 368.22)
- Asus GeForce GTX 970 DirectCU Mini 4GB - 1,088MHz GPU (1,228MHz boost), 7GHz GDDR5 (GeForce 368.22)