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surely the 8800 would outperform the 5770? are the 5770's really THAT good i assumed they were like budget.
I'd say about 40-50% faster in DX9/10 stuff generally... but some of the DX10/11 features aren't that much cut down from the 5870 - even tho the ROPs, SPs, etc. are which is why in cf they can in very specific cases smoke the 5870.
Not knocking the 5770 but I wouldn't say it was that worthwhile as an upgrade from a decently clocked 8800GTX - I'd be tempted to hold off til you can afford a 5850 or maybe the 5830 - tho thats late - but is likely to be only a few quid above the budget.
Depends on the resolution a bit - 1680x probably not a huge difference - 1920x tho and you'd be talking.
thanks for the reply guys.
4890 looks tempting.
no nvidia stuff a worthy upgrade?
SLI with another cheap 8800GTX not an option? they still have the VRAM to be useful at higher resolutions - and almost deffinatly faster than the 5770 in COD.