Originally Posted by TheBirdman74
gtx 460 or gtx 470
hands down, no questions asked.
the HD6000 series is allegedly slower then the HD5000 series its supposed to replace
The HD6000 series is slower at stock clocks, but the 6850s typically have plenty OCing headroom and crossfire to match approximately GTX 470 sli.
6850s are generally about 5% slower than a 5850 at stock, and as I understand it, only ~2-3% slower after both are overclocked to their "average" maximum. They draw equal to 5850s when Dx11 features like Tessellation is factored in, occasionally beating them.
They also draw less power, are cheaper and have far better CrossfireX scaling if you're looking at expanding later.
The 5850 is a marginally better card on its own, but the 6850 is the best of those mentioned (5850/6850/GTX 460) when in crossfire as it starts to approach the category above it when two cards are factored in.
i.e. ~GTX 470 sli. Marginally worse than 5870 crossfire.
The 6870 is similar, with about ~10% performance increase, placing it around GTX 470 at stock and crossfiring to be about equal to crossfire 5870's.
Again, it does this while being cheaper.
If you can find one of the "awesome" OCing editions of any of these cards, i.e. the Hawk 460/6850/70 for a comparable price, I'd get it. Other than that, it's largely just the price that I'd take into account.