Originally Posted by Rpg2
I remember reading an article published by Anand or some other site stating the 5770 wasn't bottlenecked by the 128bit bus thanks to the GDDR5. I am curious to see if the performance actually improves more thanks to the wider memory bus. The new shaders are supposed to be marginally faster (8-15%), but this was before 11.4 where a lot of the driver was shader optimizations which boosted performance of most cards by 10-25% (on average?) if not more in many games.
I dont think the performance increases from 11.4 produces anywhere near 25% average. I think 11.4 optimized 69xx series more than anything, and even then maybe 10% max.
With that said, i can't quite tell if your're mixing up up Juniper architecture with Barts. This isn't Juniper with a 256bit bus.
It's Barts (6850) with 2 SIMD's disabled.
Now if i'm wrong with my interpretation with what you said, totally sorry
Just making sure.
Speculation: 900mhz 6790 = Stock 6850.