Test System And Graphics Hardware
We all know that graphics cards like the Radeon HD 7990 require a substantial amount of power, so XFX sent along its PRO850W 80 PLUS Bronze-certified power supply. This modular PSU employs a single +12 V rail rated for 70 A. XFX claims that this unit provides 850 W of continuous power (not peak) at 50 degrees Celsius (notably higher than the inside of most enclosures).
We've almost exclusively eliminated mechanical disks in the lab, preferring solid-state storage for eliminating I/O-related bottlenecks. Samsung sent all of our labs 256 GB 840 Pros, so we standardize on these exceptional SSDs.
As far as testing goes, we have to use Fraps in conjunction with a predefined path for 60 seconds of recording. We planned to use our FCAT tools to report frame rates for dual-GPU solutions like the Radeon HD 7990 and GeForce GTX 690, factoring out dropped and runt frames, but this turned out to be impossible. The frame overlay only works in 32-bit applications, and the Battlefield 4 multiplayer beta is 64-bit-only.
Header Cell - Column 0 | Test System |
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CPU | Intel Core i5-2550K (Sandy Bridge), Overclocked to 4.2 GHz @ 1.3 V |
Motherboard | Asus P8Z77-V LX, LGA 1155, Chipset: Intel Z77M |
Networking | On-Board Gigabit LAN controller |
Memory | AMD Gamer Series Memory, 2 x 4 GB, 1866 MT/s, CL 9-9-9-24-1T |
Graphics | GeForce 210 1 GB DDR3GeForce GT 630 512 MB GDDR5GeForce GTX 650 Ti 1 GB GDDR5GeForce GTX 660 2 GB GDDR5GeForce GTX 670 2 GB GDDR5GeForce GTX 770 2 GB GDDR5GeForce GTX Titan 6 GB GDDR5GeForce GTX 690 4 GB GDDR5Radeon HD 6450 512 MB GDDR5Radeon HD 6670 512 MB DDR3Radeon HD 7770 1 GB GDDR5Radeon HD 7790 1 GB GDDR5Radeon HD 7870 2 GB GDDR5Radeon HD 7950 Boost 3 GB GDDR5Radeon HD 7970 3 GB GDDR5Radeon HD 7990 6 GB GDDR5 |
Hard Drive | Samsung 840 Pro, 256 GB SSD, SATA 6Gb/s |
Power | XFX PRO850W, ATX12V, EPS12V |
Software and Drivers | |
Operating System | Microsoft Windows 8 Pro x64 |
DirectX | DirectX 11 |
Graphics Drivers | AMD Catalyst 13.10 Beta 2, Nvidia GeForce 331.40 Beta |
Benchmarks | |
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Battlefield 4Multiplayer beta | Custom THG Benchmark, 60-second Fraps runMap: Siege of Shanghai, Game Type: Domination |