AMD Radeon HD 7970 GHz Edition Review: Battling For The Performance Crown
by Ryan Smith on June 22, 2012 12:01 AM EST- Posted in
- GPUs
- AMD
- GCN
- Radeon HD 7000
OC: Gaming Performance
Moving on to our gaming performance section, let’s see what our 15% overclock can do for gaming performance. Assuming the 7970GE’s performance continues to scale well with clockspeeds, we should see around a 10-12% real world performance gain.
Starting as always with Crysis, what was already an incredible lead for the 7970GE becomes increasingly absurd. The 7970GE OC sees a further 8% performance improvement here, pushing it past 60fps at 1920 and past 40fps at 2560. Against the stock GTX 680 it’s now leading by 35% on average framerates.
Minimum framerates on the other hand haven’t changed by nearly as much. Given what we know about PT Boost and Crysis’s love of memory bandwidth, it’s reasonable to assume we’re being held back by memory bandwidth limits here.
Moving on to Metro, the 7970GE once again gains 8-9% due to our overclock. The earlier 56W jump in power consumption at the wall makes it an expensive gain, but as it stands this is by far the fastest we’ve seen a single-GPU card perform at Metro.
With Batman we once more see gains of around 9% from our overclock. Even at 2560 our framerates are now in excess of 70fps.
With Portal 2 being one of the 7970GE’s biggest defecits relative to the GTX 680, a solid overclock can help to close the gap but it’s not enough to eliminate it. Still, it’s enough to push the average framerate over 60fps at 2560 with SSAA. The overall scaling from the overclock also looks very good here, with the 7970GE OC picking up a larger than normal 11-12%.
Finally we have AMD’s other notable weak spot, Battlefield 3. Much like with Portal 2 overclocking can’t eliminate the GTX 680’s lead, but it can significantly cut into it. At 2560 and at 1920 with MSAA this is enough to push past 60fps, making for a solid 10% performance gain from overclocking.
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AnnihilatorX - Friday, June 22, 2012 - link
"All the same AMD has also boosted their memory clocks from 5.5GHz to 6GHz, which will give the card 9% more memory bandwidth with it needs it."=>
"when it needs it"
raghu78 - Friday, June 22, 2012 - link
RyanAs you mentioned Dirt Showdown will take the place of Dirt 3 in your test suite I would like to make a suggestion that a few more games be changed. Max Payne 3 and Alan Wake are good changes. Maybe Crysis Warhead could be replaced by Alan Wake and Portal 2 by Max Payne 3. Another very demanding game which could find a place is Witcher 2 Enhanced edition. Focusing on games released in the last 12 months in your test suite helps prospective buyers / gamers decide based on performance on recent titles which they will most probably be playing.
HighTech4US - Friday, June 22, 2012 - link
You are showing the OCed version of the 7970e in comparison to the stock GTX680.For fairness the stock GTX680 should be Overclocked also.
kyuu - Friday, June 22, 2012 - link
There's nothing fair or unfair about overclocking. Why do people bring this up every time there's one of these articles...CeriseCogburn - Saturday, June 23, 2012 - link
Good to hear it this time, as all the prior moaning has been amd fans wailing that the 680 core is already overclocked out of the box !L M H O
I just want to see the 470, 480, 570, and 580 at the equivalent radeon clocks for those series, and see amd get SPANKED even more in those series.... to be fair, of course....
Yes, thanks so much for saying "you guys always say it" - no - it's not "you guys" - it's the amd fan boys !
This time they didn't moan and complain about fairness, because amd got beat anyway, and they wouldn't if it won, which it did not, I must point out, feeling the overwhelming need to state, again, and again.
This sums it up well: AMD loses, as usual
seapeople - Friday, June 22, 2012 - link
They're also comparing the OCed version of the 7970e to the stock 7970e. That seems unfair to me. To be fair, you should only compare the OCed 7970e to itself, the OCed 7970e.Arbie - Friday, June 22, 2012 - link
It's probably too late now, but there were at least three more places where you could have used "performance crown" in the opening paragraphs.
CeriseCogburn - Saturday, June 23, 2012 - link
Amd LIED, with their false advertising about this card - their hot loud slow housefire...Amd is an evil corporate monster who lies to the little children they sell their products to (and to soccer Mommies who actually pay the card price to keep the lies going - granted they pay less than Abu Dhabi oil sheiks)
Wreckage - Friday, June 22, 2012 - link
Another successful paperlaunchI'm not sure why they could not wait until they had actual product available.
behrouz - Friday, June 22, 2012 - link
AMD Radeon HD 7970 GHz Edition = $499AMD Radeon HD 7970 = $549 ? or $449 ?