Radeon HD 4870 > Radeon HD 4850 > Geforce GTX 260 OC’d (I am unaware of the speeds) > Radeon HD 5770 > Radeon HD 5750.
(Please correct me if I am wrong, I haven’t had much experience with graphics cards.)
Anyway, I cannot decide on which of these I should purchase. I'd like to the best experience possible for gaming. As I am aware, these cards are in the £70-100 price range and feature 512MB RAM, which is what I'm after - I don't want to spend anymore than this.
I am seeking advice on which of these cards is best OR a recommendation of something else in relation to the information I have given.
*Additional Notes* - I am upgrading from an old AGP system (with a new motherboard, etc) and I am not sure about upgrading again in the near future. Please consider such things as DirectX 11 compatibility, thermal specifications (wrong terminology?), POSSIBLE overclocking AND I don’t intend to do SLI/Crossfire. I do not mind whether the card is nVidia or ATI.