AMD’s Radeon HD 6870 & 6850: Renewing Competition in the Mid-Range Market
by Ryan Smith on October 21, 2010 10:08 PM ESTKicking things off as always is Crysis: Warhead, still the toughest game in our benchmark suite. Even 2 years since the release of the original Crysis, “but can it run Crysis?” is still an important question, and the answer continues to be “no.” One of these years we’ll actually be able to run it with full Enthusiast settings…
For reasons we’ve yet to determine, Crysis continues to do a very good job serving as an overall barometer for video card performance. Much of what we see here will show up later, including the order that cards fall in.
As we’ve been expecting, the 6800 series cannot keep up with the 5800 series – Barts is still a “rebalanced” Cypress after all. The performance gap isn’t too severe, and it certainly couldn’t justify 5870 prices at today’s prices, but the 6870 and 6850 definitely aren’t perfect replacements for their 5800 series counterparts.
Focusing on 1920x1200, we have a 3-way race between the GTX 470, EVGA GTX 460, and the 6870. The 6870 comes out ahead, with the EVGA and then the GTX 470 bringing up the pack at under a frame behind. Meanwhile near the 6850 is the GTX 460 1GB, and it’s 2fps behind; while even farther down the line is the GTX 460 768MB, which officially is only $10 cheaper than the 6850 and yet it’s well behind the pack. As we’ll see, the 6850 will quickly assert itself as the GTX 460 1GB’s peer when it comes to performance.
Meanwhile taking a quick look at Crossfire performance we see an interesting trend: the 6800 series cards are much closer to their 5800 series counterparts than they are in single card mode. Here the 6850CF even manages to top the 5850CF, an act that nearly defies logic. This is something we’ll have to keep an eye on in later results.
Moving on to our minimums, the picture changes slightly in NVIDIA’s favor. The 6870 drops to the bottom of its pack, while the 6850’s lead narrows versus both GTX 460 cards. Meanwhile in CF mode now both 6800 series cards top their 5800 series counterparts. Crysis’ minimum framerate has always been a bit brutal to AMD cards due to how AMD’s drivers manage their memory, a problem compounded by Crossfire mode. Perhaps something has changed?
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Ryan Smith - Friday, October 22, 2010 - link
In case it isn't obvious from the slipshod organization of the article, we didn't quite get it done on time. We had less than a week to put this article together when normally for an article of this size it takes 2 weeks. Check back in the morning, everything on Eyefinity, DP1.2, etc will be up by then.counter03 - Friday, October 22, 2010 - link
i am quite interested in that 'mst hub'.is there any available product now?well,i just find nothing with google.wolrah - Friday, October 22, 2010 - link
The card still has two TMDS clock generators. This means only two DVI/HDMI displays can be driven off the card at one time, no matter what connection. With that in mind, I wouldn't be surprised if the card doesn't even support passive adapters as there is literally no good reason to ever use them. You already have two native ports, so with a maximum of two DVI displays that's that.Regardless of if passive adapters are supported, you'll still need active adapters or native DisplayPort on your display to run three or four monitors off this card.
Supposedly it also supports DisplayPort daisy chaining, so possibly when monitors arrive that have an out port it may handle more than four displays, but again only a maximum of two can be DVI/HDMI without active adapters.
ninjaquick - Monday, October 25, 2010 - link
DP support shouldn't be a problem since I've seen quite a few monitors coming out with DP in and some with I/O.Abot13 - Saturday, October 23, 2010 - link
With the 6800 series the cards can support up to 6 monitors in Eyefinity. The DP ports can use a DP hub or the monitors can be chained with DP. Either way the max is 6 monitors per card.ol1bit - Thursday, October 21, 2010 - link
The naming stinks, but I can see how these cards will be a big Christmas season for AMD.So people that don't the new naming scheme will rush out an buy the bigger names. Smooth Marketing Move.
Well, if the 6900's launch next month, that will be fun to see.
Zokudu - Thursday, October 21, 2010 - link
You removed Left 4 Dead from your benchmarks. Does this mean you won't be replacing it with another Source game (ie L4D2 or maybe Portal 2 when that releases)?I know its not 100% perfect but 3 of the top 10 selling games on steam right now are run on the Source engine and the only other ones that share and engine are BF:BC2 and MoH both using Frostbite. I would think that having some form of a Source game in there would be a good idea considering the vast amount of popular games that run on it. I always used the L4D benchmark to compare performance for TF2 and CS:S. in the past.
Otherwise good review and I'm excited for the HD6900 launch next month.
Ryan Smith - Friday, October 22, 2010 - link
By the time Portal 2 comes out, it'll be about the time we refresh our suite anyhow. For the time being the existing Source games run on anything (even the GT 430 got L4D playable at 1680 with 4xAA) so it's not a useful benchmark, especially since there's no guarantee Portal will run that well.AmdInside - Thursday, October 21, 2010 - link
In the 3DTV Play article, you mentioned AMD's 6000 series would challenge NVIDIA in 3D with the 6000 series but I didn't read any info on it in this article. What gives?StevoLincolnite - Friday, October 22, 2010 - link
Also didn't see any mention of the improved crossfire performance either...