Final Words

Going in to our first meeting with AMD, we weren’t quite sure what to expect with the Radeon HD 6800 series. After all, how do you follow up on the blockbuster that was Cypress and the Radeon HD 5800 series?

The answer is that you don’t, at least not right away. With AMD’s choice of names in mind, Barts and the 6800 series isn’t the true successor to Cypress; but it is the next generation of Radeon for another market. That doesn’t mean it isn’t a great product line though – in fact that’s far from it.

The 6800 series hits the one market segment that AMD couldn’t reach with either the 5800 series or the 5700 series: the $200 market.  As we said back in July when we crowned the GTX 460 the $200 king, the most successful chips are those chips that are designed from the get-go for the market they’re being sold in. The GTX 460 succeeded where the Cypress could not, as the penalty for using a harvested Cypress chip for that market was too severe and AMD had little else to work with.

Now 3 months later AMD has their appropriate answer to the $200 market in the form of Barts and the Radeon HD 6800 series. The Barts GPU is small enough to cheaply produce for that market, and with AMD’s rebalanced design it’s capable of trailing the 5800 series by only 7%, making Cypress-like performance available for prices lower than before. It’s the missing link that AMD has needed to be competitive with the GTX 460.

As a result, even with NVIDIA’s latest round of price drops AMD has managed to dethrone the $200 king, and in the process is reshaping the competitive market only recently established by the GTX 460. With AMD and NVIDIA’s price stratification there are very few head-to-head matchups, but there are a few different situations that bear looking at.

At the top end we have the Mexican standoff between the recently price-reduced GTX 470, the newly released Radeon HD 6870, and the overclocked GTX 460 as represented by the EVGA GTX 460 1GB FTW. At $260 the GTX 470 is several percent faster than the 6870, and at only $20 more NVIDIA has done a good job pricing the card. If performance is your sole concern, than the GTX 470 is hard to beat at those prices – though we suspect NVIDIA isn’t happy about selling GF100 cards at such a low price.

Meanwhile if you care about a balance of performance and power/heat/noise, then it’s the 6870 versus the EVGA GTX 460; and the EVGA card wins in an unfair fight. As an overclocked card in a launch card article we’re not going to give it a nod, but we’re not going to ignore it; it’s 5% faster than the reference 6870 while at the same time it’s cooler and quieter (thanks in large part to the fact that it’s an open-air design). At least as long as it’s on the market (we have our doubts about how many suitable GPUs NVIDIA can produce), it’s hard to pass up even when faced with the 6870.

Without the EVGA card in the picture though, the 6870 is clearly sitting at a sweet spot in terms of price, performance, and noise. It’s faster than the 5850 while drawing only as much power and yet it’s still slightly quieter. Meanwhile it completely clobbers the reference clocked GTX 460 1GB in gaming performance, although with NVIDIA’s new prices and the $30 premium we would hope that this is the case. If nothing else the 6870 wins by default – NVIDIA doesn’t have a real product to put against it.

As for the Radeon HD 6850 however, things are much more lopsided in AMD’s favor. It’s give and take depending on the benchmark, but ultimately it’s just as fast as the GTX 460 1GB on average, even though it’s officially $20 cheaper. And at the same time it draws less power and produces less noise than the GTX 460 1GB. In fact unless the GTX 460 1GB was cheaper than the 6850, we really can’t come up with a reason to buy it. For all the advantage of an overclock when going up against the 6870, the stock clocked card has nothing on the 6850. Even the GTX 460 768MB, while $10-$20 cheaper than the 6850, still has to contend with the fact that the 6850 is almost 10% faster and only marginally louder.

In fact our only real concern is that while the reference 6850 is a great card, the XFX card is less so – XFX heavily prioritized temperatures over noise, and while this pays off with a load temperate even better than the GTX 460, it comes at the price of noise levels exceeding even the 6870. Shortly before publication we got a note from XFX that they’re going to work on releasing a BIOS with a less aggressive fan, which hopefully should resolve the issue. In the meantime we suggest checking back here next week, as we’ll have several custom 6850s arriving next week that we’ll be reviewing as part of a 6850 roundup.

Wrapping things up, we believe this will probably go down as being the most competitive card launch of the year. AMD and NVIDIA reposition themselves against each other with every launch, but by first launching the Radeon HD 6000 series against NVIDIA’s mid-to-high range GTX 460, AMD has gone head-first in to one of NVIDIA’s most prized markets, and NVIDIA is pushing right back. If you would have told us 3 months ago that we would have been able to get GTX 460 1GB performance for $180 only a couple months later, we likely would have called you mad, and yet here we are. The competitive market is alive and then some.

Ultimately this probably won’t go down in history as one of AMD’s strongest launches – there’s only so much you can do without a die shrink – but it’s still a welcome addition to the Radeon family. With a new generation of Radeon cards taking their foothold, we now can turn our eyes towards the future, and to see what AMD will be bringing us with the Radeon HD 6900 series and the Cayman GPU.

Power, Temperature, & Noise
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  • Chris Peredun - Friday, October 22, 2010 - link

    Not bad, but consider that the average OC from the AT GTX 460 review was 24% on the core. (No memory OC was tried.)

    http://www.anandtech.com/show/3809/nvidias-geforce...
  • thaze - Friday, October 22, 2010 - link

    German magazine "PC Games Hardware" states the 68xx need "high quality" driver settings in order to reach 58xx image quality. Supposedly AMD confirmed changes regarding the driver's default settings.
    Therefore they've tested in "high quality" mode and got less convincing results.

    Details (german): http://www.pcgameshardware.de/aid,795021/Radeon-HD...
  • Ryan Smith - Friday, October 22, 2010 - link

    Unfortunately I don't know German well enough to read the article, and Google translations of technical articles are nearly worthless.

    What I can tell you is that the new texture quality slider is simply a replacement for the old Catalyst AI slider, which only controlled Crossfire profiles and texture quality in the first place. High quality mode disables all texture optimizations, which would be analogous to disabling CatAI on the 5800 series.So the default setting of Quality would be equivalent to the 5800 series setting of CatAT Standard.
  • thaze - Saturday, October 30, 2010 - link

    "High quality mode disables all texture optimizations, which would be analogous to disabling CatAI on the 5800 series.So the default setting of Quality would be equivalent to the 5800 series setting of CatAT Standard. "

    According to computerbase.de, this is the case with Catalyst 10.10. But they argue that the 5800's image quality suffered in comparison to previous drivers and the 6800 just reaches this level of quality. Both of them now need manual tweaking (6800: high quality mode; 5800: CatAI disabled) to deliver the Catalyst 10.9's default quality.
  • tviceman - Friday, October 22, 2010 - link

    I would really like more sites (including Anandtech) to investigate this. If the benchmarks around the web using default settings with the 6800 cards are indeed NOT apples to apples comparisons vs. Nvidia's default settings, then all the reviews aren't doing fair comparisons.
  • thaze - Saturday, October 30, 2010 - link

    computerbase.de also subscribes to this view after having invested more time into image quality tests.

    Translation of a part of their summary:
    " [...] on the other hand, the textures' flickering is more intense. That's because AMD has lowered the standard anisotropic filtering settings to the level of AI Advanced in the previous generation. An incomprehensible step for us, because modern graphics cards provide enough performance to improve the image quality.

    While there are games that hardly show any difference, others suffer greatly to flickering textures. After all, it is (usually) possible to reach the previous AF-quality with the "High Quality" function. The Radeon HD 6800 can still handle the quality of the previous generation after manual switching, but the standard quality is worse now!

    Since we will not support such practices, we decided to test every Radeon HD 6000 card with the about five percent slower high-quality settings in the future, so the final result is roughly comparable with the default setting from Nvidia."

    (They also state that Catalyst 10.10 changes the 5800's AF-quality to be similar to the 6800's, both in default settings, but again worse than default settings in older drivers.)
  • Computer Bottleneck - Friday, October 22, 2010 - link

    The boost in low tessellation factor really caught my eye.

    I wonder what kind of implications this will have for game designers if AMD and Nvidia decide to take different paths on this?

    I have been under the impression that boosting lower tessellation factor is good for System on a chip development because tessellating out a low quality model to a high quality model saves memory bandwidth.
  • DearSX - Friday, October 22, 2010 - link

    Unless the 6850 overclocks a good 25%, what 460s reference 460s seem to overclock on average, it seems to not be any better overall to me. Less noise, heat, price and power, but also less overclocked performance? I'll need to wait and see. Overclocking a 460 presents a pretty good deal at current prices, which will probably continue to drop too.
  • Goty - Friday, October 22, 2010 - link

    Did you miss the whole part where the stock 6870 is basically faster (or at worst on par with) the overclocked 460 1GB? What do you think is going to happen when you overclock the 5870 AT ALL?
  • DominionSeraph - Friday, October 22, 2010 - link

    The 6870 is more expensive than the 1GB GTX 460. Apples to apples would be DearSX's point -- 6850 vs 1GB GTX 460. They are about the same performance at about the same price -- $~185 for the 6850 w/ shipping and ~$180 for the 1GB GTX 460 after rebate.
    The 6850 has the edge in price/performance at stock clocks, but the GTX 460 overclocks well. The 6850 would need to consistently overclock ~20% to keep its advantage over the GTX 460.

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