Unfortunately, as stated by Jryan, the 5970 is a dual GPU card and it isn't quite a fair comparison from that perspective. HOWEVER, it is fair in the fact that it's the strongest single PCB solution that each company offers, and thus ATI still owns that crown. So it depends on your point of view on the matter.
In the end, numbers don't lie, and number's state that the 5970 still remains the strongest single PCB solution for your GPU needs.
I know some feel its not fair to compare dual gpu vs single gpu..but both are each companies top end product.. so in a sense it IS a fair comparison..
nvidia decided on one gpu, ati on 2.. for whatever reason..
are there any recent reviews on how well, if at all, quadfire scales?
Pretty much everything. Quadfire doesn't scale fantastically, but it's not terrible. Personally I think it's overkill, 1 5970 should be fine unless you're playing at HUGE resolutions on a 30" plus monitor.
two 5970's is Quadfire and yes a 5970 has two GPU's on one PCB.
Last I checked, Quad GPU's (at least with SLI) could actually decrease performance. But since I'm not absolutely made of money, I don't bother much with many Tri/Quad GPU benchmarks to be completely honest.
That depends on your other hardware. A Quadfire solution can EASILY run into CPU Bottleneck issues in a heartbeat if your other components can't keep up. Also, it'll run into such a bottleneck, that yes sometimes it can actually go backwards and screw things up.
It's why I recommend a single 5970 every time. Quadfire can't scale well enough with our current CPU's and Motherboards, and even then the driver optimization for it isn't super either.
Is there a question here ?, oh ok,
Single card right now, the 5970 operates via crossfire, imo, the argument in other threads , should a person run 2 5770's or a 5850 has all the pro's and con's of the single gpu GTX 480 VS the 5970.
In the coming month's
2. 5970 4gb
The 5970 is a twin GPU card .... the last one of those we saw were the 295 GTX and the 4870x2. Back in October, the fanboi mantras were:
Red Team "comparing the 295 and 5870 was unfair as the former is a twin GPU card"
Green Team "the old 295 still beats the 5870"
Now we have:
Green Team "comparing the 5970 and 480 unfair as the former is a twin GPU card"
Red Team "the 5970 still beats the 480"
There are lots of ways to compare GPU's....on a matter of principal, I won't pay $100+ over MSRP for any card so that has me down on the 5970 ATM. Up until last week, on a price / performance (dollars per frame) basis, the 480 had an edge over the 5870 and the 470 over the 5850....this week however, ATI card prices have almost dropped to the original MSRP's making them more competitive by this criteria. But you get more money for 1st place than 2nd so I don't think we'll see corresponding price drops from nVidia just yet.
The real comparisons that I want to see is the two $700 solutions:
One ATI 5970 OC'd to its limit versus two 470's OC'd to their limit in SLI.
Here they took twin 470's to 778 GPU Clock (128% of stock) 901 MHz (108%) and Shader to 1555 (128%)
In this round, and at this resolution looks like the 470 takes the "$700 Solution Crown" but the 5850 pair had a very strong showing. Things change at other resolution so your gonna have to do your homework if playing at other resolutions.
Again, these aren't OC'd so, not quite the solution I'm looking for.
The review's conclusion are a mixed bag and can be read here: