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|
|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|
|Graphics Drivers||AMD Catalyst 13.10 Beta 2, Nvidia GeForce 331.40 Beta|
|Battlefield 4Multiplayer beta||Custom THG Benchmark, 60-second Fraps runMap: Siege of Shanghai, Game Type: Domination|
****EDIT BY TOM'S HARDWARE****
Sorry, corvetteguy, you're the first so I'm going to hijack your post to answer some common questions:
- Why didn't you mention mantle?I probably *should* have mentioned it, but at this point it seems a little early. We don't know that much about it and we don't even know exactly when it arrives. Rest assured, when Mantle is rolled out we will cover it!
- Why did you use a Titan in the CPU tests instead of the dual-GPU 690 or 7990?Dual-GPU performance can be tricky, and without FCAT working, I didn't want to report potential pie-in-the-sky FRAPS performance that is difficult to verify. Titan is the fastest single GPU card we have.
- Why no FX-6000 CPU?We benched the FX-4170 and FX-8350. The FX-6000 will be in between, there wasn't a colossal spread so it seems pretty straightforward.
- For the love of everything good and pure, why did you use IE?Haha! Lots of comments on this. I used it because it was there - remember, we clean install for our benchmarks, so unless the test involves browsers we don't bother investing time installing anything else. For the record I feel dirty and violated having opened the software, but you should all know that my personal PC has both Firefox and Chrome installed. :)
Hope that clarifies things!
- Don Woligroski
****END OF EDIT BY TOM'S HARDWARE****
In 64 man conquest games, doing a FRAPS benchmark of an entire 30 minute round, I got a minimum framerate of 42, average of 74, and max of 118 on my rig (4.8 GHz 2600k || 780 SLI @ 1100/1500 || 16GB DDR3 2133c11) at 1440p with all settings maxed and 120 fov.
Also interesting to see 2GB cards struggling at high res on this game. I really didn't think we'd see that so soon, given that the 780/Titan/7950/7970 are the only cards yet released with >2GB standard memory.
But not matter what, each time that main building is blown up I loss at least 5 fps for the rest of the round and have big time fps/lag spikes.
Imo you want an 7970/280x and a quad core to be able to play smooth.
Also, I hear a lot about vram...what is the feed back on 2 gigs vs 3 ?
I also wish they tested a Radeon and Geforce card that would be considered equal to see how it performs by brand.
Considering that mantle wont be available until December, why would it be mentioned? Especially considering the fact that none of the "new" AMD GPUs were included in the benchmarks...