hello. i have an amd a8 3870k quad core with a radeon hd 6670 1 gb ddr3 and 4 gigs of ram, now in theory this system should be able to run crysis extremely smooth, on medium its alright but high isn't too playable. is there a major reason to this and is there anyway to fix this?
Crysis is a still considered a very demanding game despite it's age. The Radeon HD 6670 is a good budget oriented graphics card. However, I think you are simply asking too much from it.
The easiest thing to do is to replace it with a more powerful graphics card. Or you can lower the resolution. See following review of current generation $90 - $150 graphic cards for benchmarks of the Radeon HD 6670 which generally use the highest settings or "ultra".
Your theory is more than a little off the card: "with a radeon hd 6670"
- x600 series cards are lower mid range cards, for low to medium settings.
- High will gain you nothing of use on this card.
- I had a laptop with that card a few years ago, and it's alright for low/medium and older non-taxing titles.