AMD Radeon HD 7990 Review: 7990 Gets Official
by Ryan Smith on April 24, 2013 12:01 AM EST- Posted in
- GPUs
- AMD
- Radeon
- Radeon HD 7000
- Tahiti
Hitman: Absolution
The third game in our lineup is Hitman: Absolution. The latest game in Square Enix’s stealth-action series, Hitman: Absolution is a DirectX 11 based title that though a bit heavy on the CPU, can give most GPUs a run for their money. Furthermore it has a built-in benchmark, which gives it a level of standardization that fewer and fewer benchmarks possess.
Looking at our average framerates, we see an interesting pattern with Hitman we don’t see elsewhere. Rather than pulling ahead, the 7990’s lead over the GTX 690 starts eroding as we go up the resolution ladder. Ultimately by the time we hit 5760, the two are virtually tied, and unfortunately neither has passed the 60fps mark.
It’s interesting to note though that at 5760 we’re seeing a very clear case of where the 7990 is trailing the 7970GE CF by more than clockspeeds alone would suggest. If the 7990 was boosting as frequently as the 7970GE CF here, then the two should be separated by no more than 5%; instead we’re looking at a gap of 8%. GPU binning covers a good bit of ground, but under heavy load the 7990 is going to have to pull back on its clockspeeds to stay under 375W.
With our minimum framerates the gap between the two AMD solutions widens considerably, leaving the 7990 behind by 17% at 5760. Hitman’s minimum framerates have proven to be reliable in the past, but still, if this is a case of throttling it looks to be a rather extreme one.
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HisDivineOrder - Wednesday, April 24, 2013 - link
They bring a fantastic cooler that prioritizes silence and convenience to have SLI in a system that doesn't have two PCIe slots available for them. Plus, you always had the option of quad-SLI that's a little harder to do with four 680's.That said, I think anyone buying a 690 over a Titan now is pretty stupid. It's not about the speed difference. It's that if you're in the market for a $1k GPU, go for the one that won't be running out of memory with next year's PS4/next Xbox ports.
extremesheep - Wednesday, April 24, 2013 - link
Table typo...should the first be "7990"?extremesheep - Wednesday, April 24, 2013 - link
Err...should page 1, table 1, column 1 be "7990" instead of "7970"?Ryan Smith - Wednesday, April 24, 2013 - link
You may be seeing an old, cached copy. That was fixed about 25 minutes ago.code65536 - Wednesday, April 24, 2013 - link
Any chance we could get Tomb Raider in future benchmark tests?Ryan Smith - Wednesday, April 24, 2013 - link
In the desktop tests? No. We keep the tests capped at 10 so that it's a manageable load when we need to redo everything, such as with the 7990 launch. At this point the desktop benchmark suite is set for at least the immediate future.VulgarDisplay - Wednesday, April 24, 2013 - link
4th paragraph: Incorrectly stated that Tahiti has 48 rops.Flamencor - Wednesday, April 24, 2013 - link
What a mediocre review! In your conclusions, you mention nothing about how AMD absolutely spanked NVIDIA in compute performance and synthetics! It is 75 watts more power hungry, and in exchange you get substantially more memory and a total win on compute and synthetics! I know synthetics aren't actual gaming numbers, but they're indicative of how the card will stand up to future games. The fact that the card has far better synthetics says a lot about it's longevity. The card looks like a great card (although quite late)! I'm no fanboy, but why can't people just write a legitimately upbeat and positive review about an amazing part?Warren21 - Wednesday, April 24, 2013 - link
Ryan typically has a slight undertone of NVIDIA bias; it can be found in most of his articles. That being said, the GTX 600 series are some amazing cards. I'd love to have a GK104-based card to replace my aged 6870 1GB.CiccioB - Wednesday, April 24, 2013 - link
This kind of compute benchmarks based on OpenCL are quite useless. No professional applications use OpenCL and nvidia doesn't really put all its efforts in optimizing their OpenCL drivers.You may be surprise to know that REAL applications that really need GPU assisted computation use CUDA. And thus you have the option to use nvidia GPU computation or nothing else.
That's for how good is OpenCL. It may be open, it may be something AMD needs to show good (useless) graphs, but in real word none is going to use it for serious stuff.
3D renderers are a meaningful example: apart the useless SmallLuxMark benchmark, professional engines use CUDA. AMD is not there with whatever "devasting" computational solution you may believe they have. That's why nvidia holds more than 80% of the professional market and it's the only one having GPUs solutions for HPC while AMD just struggles to sell consumer products.
By the way, goo review, though a double Titan solution may have been added to make it more interesting (especially for power consumption) :)