Caporegime
- Joined
- 18 Oct 2002
- Posts
- 33,188
Why is the 5870 a pointless card to the enthusiast?
Just on price, the 5850, overclocked as far as it will go, and the 5870 overclocked as far as it will go are within 1-2% of each other really. The shader drop turns out to be an incredibly small difference as its clearly not shader but more bandwidth and ROP limited. Clock a 5850 up to default 5870 clocks and they are all but identical in performance.
So with the 5850 you're buying a core capable of the same clocks and the same performance with lower stock clock speeds, for 66% of the cost. I'd never in a million years buy a 5870, likewise the 5970(at some point soon) will drop back down to RRP, which at £420-430 again offers HUGELY more value for money than a 5870. The 5870 is just priced badly for everyone but AMD, the top cards often are.
Unlike previous gens though, and probably unlike a lower end Nvidia part, the bottle neck is not in the shader number, while thats the only thing you're losing in a 5850. Previous gens something was done so that the lower end core at the same clock speeds would NOT offer the same performance, the 4850 clock for clock was significantly slower than a 4870, 260 to a 280gtx. For the first time in a long time clock for clock AMD's offerings are basically identical so theres no reason at all to spend more on a 5870. The 5850, as its priced now, is a damn good card for the money.