Re: Help upgrading from 8800GTS?
Its kindda hard to say now, because the next gen of nvidia cards is coming up fast.
I went from a BFG 8800GTS 640 --> GTX 275 and the difference is a little more than noticeable.
Value wise, if i remember correctly, the ATi 4890 and GTX 260 216 were the best.
You could hang on to your card and use it for physx calculations if you have a decent enough power supply + motherboard with another pci slot, or sell it. I managed to sell mine on craigslist for a decent price.
EDIT: If you have a store-bought system, you may have to replace the power supply as most new mid-range graphics card need 400ish-500ish power, and store bought computers usually come with low quality 300ish.