AMD’s Radeon HD 6870 & 6850: Renewing Competition in the Mid-Range Market
by Ryan Smith on October 21, 2010 10:08 PM ESTThe last new game in our benchmark suite is Civilization 5, the latest incarnation in Firaxis Games’ series of turn-based strategy games. Civ 5 gives us an interesting look at things that not even RTSes can match, with a much weaker focus on shading in the game world, and a much greater focus on creating the geometry needed to bring such a world to life. In doing so it uses a slew of DirectX 11 technologies, including tessellation for said geometry and compute shaders for on-the-fly texture decompression.
It’s also one of the few games banned at AnandTech, as “one more turn” and article deadlines are rarely compatible.
Civ 5 has given us benchmark results that quite honestly we have yet to fully appreciate. A tight clustering of results would normally indicate that we’re CPU bound, but the multi-GPU results – particularly for the AMD cards – turns this concept on its head by improving performance by 47% anyhow. The most telling results however are found in the GTX 460 cards, where there’s a clear jump in performance going form the 768MB card to the 1GB card, and again from the 1GB card to the EVGA card. The 1GB GTX only improves on memory, memory bandwidth, and ROPs, greatly narrowing down the factors. No one factor can explain our results, but we believe we’re almost simultaneously memory and geometry bound.
With that in mind, this is clearly a game that benefits NVIDIA’s GPUs right now when we’re looking at single-GPU performance. This likely comes down to NVIDIA’s greater geometry capabilities, but we’re not willing to rule out drivers quite yet, particularly when a partially CPU-bound game comes in to play. In any case NVIDIA’s advantage leads to their wiping the floor with AMD here, as even the mere GTX 460 768MB can best a 5870, let alone the 6800 series.
Crossfire changes things up, but only because NVIDIA apparently does not have a SLI profile for Civ 5 at this time.
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Parhel - Friday, October 22, 2010 - link
That's the truth. And even worse is that, after this review, I can no longer trust Anandtech as an unbiased review site. Along with the cards arriving on their doorsteps, NVidia tells the review sites which settings to use for both their own cards and AMD's. If the FTW edition card was included, I have to assume that the 'special' settings were used as well, which invalidates this whole article. Cementing that position is that HardOCP, I site I trust 100% but which is not one of my favorites, shows the new AMD cards performing MUCH better than we see them on Anandtech.spigzone - Friday, October 22, 2010 - link
I doubt Nvidia even tried to roll Kyle.What's more pathetic than someone knowing they are being rolled and trying to rationalize why it's okay as it's happening as if to say 'see, I'm TELLING you I'm getting rolled, so I DO have integrity ... you can see that, can't you???
Thank god for the Kyles of the world to provide integrity benchmarks.
Lolimaster - Sunday, October 24, 2010 - link
Is not even unbiased towards AMD cpu's. This explain everything.Trully PATHETIC
Will Robinson - Friday, October 22, 2010 - link
It actually doesn't matter that much.After reading all the reviews out its pretty clear both the 6850 and 6870 are damn good cards and have some great new features.You can run 6 screens off one card,each at different resolutions,refresh rate and orientation.
That's pretty awesome.
NVDA obviously prefers a highly overclocked card to be used in the benchmarking but its pretty clear who the winners are.
Crossfire scaling and performance looks very nice....these new cards the new mid range champs.
Manu64 - Friday, October 22, 2010 - link
So far i've always valued Anandtech as a neutral PC site, now i'm losing my faith... Whole article written in favor of NVDA because of an heavily overclocked card? You are losing your standards :-(Jamahl - Friday, October 22, 2010 - link
I must agree. The whole front page bangs on about how Anandtech never uses overclocked cards blah blah, then throws it out the window.Anandtech hits an all time low.
kmmatney - Friday, October 22, 2010 - link
I don't mind an overclocked card - its a card you can buy right now on NewEgg, so its a valid option. HOWEVER, it would have been much better to at least give an odea of how the new ATi cards overclock.mac2j - Friday, October 22, 2010 - link
I also don't think the 460 (OC) belonged in this article.Compare reference to reference .
Compare the custom 6850s to custom 450s/460s.
Compare the custom 6870s which are coming later to OC 460s/470s.
Are the 6950/6970 going to have to beat the Point of View TGT GTX480 beast or the N480GTX Lightning from MSI? Cards built on limited numbers of hand-selected chips and custom overclocked?
It's pretty ridiculous what you did ... and didn't even mention the possible future advantages of these cards thanks to them having Displayport 1.2 support.
mindbomb - Friday, October 22, 2010 - link
I disagree.When the gtx 460 1gb OC models price is around the price of a regular 6870, you can compare them.
bji - Friday, October 22, 2010 - link
Finally some reasonable logic in this panties-in-a-bunch fest.