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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clumsyalex - Friday, June 22, 2012 - link
the first chart, the regular 7970 is priced higher than the ghz edition. the second chart shows it as lower howeverRyan Smith - Friday, June 22, 2012 - link
Actually those are a list of launch prices up top. The 7970 launched at $550, which is indeed higher than the $500 launch price of the 7970GE.EnerJi - Friday, June 22, 2012 - link
It's confusing and misleading. The first thing I thought when I saw it was that you had accidentally reversed the prices between the two models.Iketh - Friday, June 22, 2012 - link
that certainly isn't what I thought... i understood what was being presented to meCeriseCogburn - Saturday, June 23, 2012 - link
I love how amd has a birthday for tahiti at 6 months....Why wait a year for a birthday when you're a lying sack of crap corporate monster rip off crummy drivers fan boy mass brainwash co ?
Heck, two birthdays a year !!! amd is so great, they get two birthdays a year !
silverblue - Monday, June 25, 2012 - link
People in the first few months of a relationship like to mention anniversaries a lot despite the (rather obvious) point that the word denotes a yearly period. "Milestone" would be more appropriate though it does sound less glamourous and perhaps a bit pessimistic (well, in the case of relationships, anyway). Might even seem cynical.Captmorgan09 - Friday, June 22, 2012 - link
Just read the chart and it's not confusing... I did a double take the first time I glanced at it, but when I actually read it it made perfect sense. :)Ryan Smith - Friday, June 22, 2012 - link
In case it's not clear, since we have a price comparison chart at the bottom, the purpose of the prices up top is to help describe the cards. The fact that the 7970GE is listed for $500 next to the $550 7970 for example is to make it clear that it's launching at a lower price than the 7970. It helps offer some perspective on capabilities and the market segment it's designed for.That said, we can always get rid of it if it's a problem.
QChronoD - Friday, June 22, 2012 - link
Could I suggest adding when they launched on the line right above the prices? I can easily see how that is confusing, but also knowing how old each generation would be useful to see.Ryan Smith - Friday, June 22, 2012 - link
Now that's an excellent idea!