Re: Ordering a new PC and need advice on the graphics card
First of all you won't need the 1.8GB VRAM bandwidth unless you're running at abnormally large resolutions, which, if you're buying a GTX 260 or HD 4850, I doubt your budget is allowing a very large monitor.
As per performance, its neck and neck. Personally I'd choose the HD 4850, but I'd also concede that the GTX 260 would probably slightly outperform it.
Will you notice a difference? No.
Laptop: Dell XPS 17 | i5-2450M @ 2.5GHz | 6144MB RAM | GeForce GT 550M
Desktop: HAF 932 Advanced | i5-3750k @ 4.4GHz | CORSAIR H100 | ASUS P8Z77-V | EVGA GTX 680 2GB | 8GB G.SKILL DDR3 @ 1600 | MUSHKIN 240GB SSD | WD 500GB 7200RPM HDD