AMD's Radeon HD 6990: The New Single Card King
by Ryan Smith on March 8, 2011 12:01 AM EST- Posted in
- AMD
- Radeon HD 6990
- GPUs
Crysis: Warhead
Kicking things off as always is Crysis: Warhead, still one of the toughest game in our benchmark suite. Even 3 years since the release of the original Crysis, “but can it run Crysis?” is still an important question, and for 3 years the answer was “no.” However as we’ll see the 6990 changes that: full Enthusiast settings at a playable framerate is finally in the grasp of a single card.
It should come as no surprise that with the 6990, AMD has hit a few different important marks on Crysis for a single card thanks to the card’s near-6970CF performance. As far as our traditional 2560 benchmark goes, the 6990 cracks 60fps, meaning we can finally play Crysis at a perfectly smooth framerate at 2560 with our tweaked settings on what is more or less a single video card. Perhaps more importantly however, performance is to the point where Crysis in full enthusiast mode is now a practical benchmark. Thanks in big part to the extra VRAM here, the tops the 5970 by nearly 30%, coming in at 42.8fps. This is still a bit low for a completely smooth framerate, but it is in fact playable, which is more than we can say for the 5970.
Overall Crysis does a good job setting the stage here for most of our benchmark suite: the performance of the card is consistently between the 6950CF and 6970CF, hovering much closer to the former. Compared to NVIDIA’s offerings the 6990 is solidly between the GTX 580 and GTX 580SLI, owing to the fact that NVIDIA doesn’t have a comparable card. The GTX 580SLI is faster, but the 580 is also still the fastest single-GPU card on the market, meaning it commands a significant price premium.
Overclocked to uber mode however only shows minimal gains, as the theoretical maximum gain is only 6% while the real world benefit is less; uber mode alone will never have a big payoff.
As far as minimum framerates are concerned the story is similar. For some reason the 6990 underperforms the 6950CF here by a frame or two per second, which given the 6990’s mostly superior specs leads us to believe that it’s a limitation of PCIe bus bandwidth. Meanwhile we can clearly see the benefits of more than 1GB of VRAM per GPU here: the 6990 walks all over the 5970.
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ET - Tuesday, March 8, 2011 - link
If you're going to keep your case open all day with your ear to the graphics card, then you might get that 70dB+, which won't be too nice on the ear. On the other hand you won't get much gaming done. :)I don't know the exact distance Anandtech measured this noise at, but Kitguru measured at about 1 metre and got 48dB when running Furmark, 40dB for normal load.
bobsmith1492 - Tuesday, March 8, 2011 - link
70dB is very low and only would apply if you are essentially living next to your computer - that's a 24-hour exposure level.NIOSH recommends 85dB as the upper limit for 8 hours of exposure, with a 3dB exchange rate - that is, every time you halve the amount of time you're exposed to the sound you can increase the volume by 3dB.
http://www.cdc.gov/niosh/docs/96-110/appF.html
looniam - Wednesday, March 9, 2011 - link
*ahem*"The document identifies a 24-hour exposure level of 70 decibels as the level of environmental noise which will *prevent* any measurable hearing loss over a lifetime"
does NOT say what the maximum is.
from my experience as an audio tech:
95dB is the start of temporary hearing loss, 110dB is the start of permanent and 140dB is the threshold of pain.
and for drunk people, they can't hear anything below 150dB :)
Ninjahedge - Thursday, March 10, 2011 - link
What?futuristicmonkey - Tuesday, March 8, 2011 - link
Any chances for some memory OC benches?nitrousoxide - Tuesday, March 8, 2011 - link
Both AMD and nVidia are out of mind, they are ignorant of the consequence by putting two gigantic chips with 5+billion transistors on the same board. I can't find the point of buying such outrageous card instead of building a CFX/SLI system. At least the latter isn't that loud, isn't that hot and consumes hardly more power than those monstrosities.TSMC is to blame. They dropped 32nm so it is impossible to get 6990/590 within 300W power envelope. But neither AMD nor nVidia turn back, but keep making these non-sense flagship cards.
Figaro56 - Tuesday, March 8, 2011 - link
No, it's not.Amuro - Tuesday, March 8, 2011 - link
I will be water cooling them! :)nitrousoxide - Tuesday, March 8, 2011 - link
What a shame it will be when next-generation 28nm Single GPU flagships wipe out these monsters with ease while consumes half the power, running silent.strikeback03 - Tuesday, March 8, 2011 - link
That hasn't traditionally happened. Look at the comparison between the 6990 and the 4870x2 - 2 generations, IIRC one process shrink. The 6990 does generally put up much better numbers, but consumes a lot more power to do so. Looking at a comparison between the 4870x2 and 5870 (double GPU on a larger process size to next-gen single-GPU) they are very close, with the 4870x2 overall holding a slight lead. And of course none of these high-end reference cards have ever been silent