| Epoch said: @pariz I don't have a crossfire setup, so I'm not an expert on the matter. I do know that it doesn't scale particularly well, so buying a new 5750 will only give about 50% increase in performance. You should also consider your power supply, you don't want to cook it. Most people recommend a 750W PS if you are running 2 high end graphics cards. It comes down to a price/performance issue. If you can get another 5750 for cheap, then its probably worth it. Otherwise you may be better off buying a more powerful card and selling your 5750. For example, according to Passmark, a 5750 scores a benchmark of 1500. Theoretically, two 5750's in crossfire would score around 2300-2400 (being generous), whereas a single 5850 scores 2500. Sapphire is still making the 5850 (they relaunched the model) and is selling them for around $150. Personally, I'd probably buy the 5850 and sell the 5750. |
| smbu2000 said: Are you sure that your motherboard supports Crossfire? Two PCI-E 16x (or 8x) slots? If so then you could CF them, though it might be worth it if you can find a low cost card to pair it with. You should really check out CF scores of two 5750's and see how they compare to other single cards price/performance, before deciding to CF. Your Power Supply should also be relatively decent. Before I was running 2 x GTX 260's in SLI on a 500W Antec PSU, which I think was just barely enough for it. Now I'm running 2 x ATI 6950's (unlocked to 6970's) in Crossfire on a 850W Silverstone PSU. I'm not sure how much power the 5750's use though? |
Thanks guys for your answers.
I gave it a second thought after your advise and I will try to sell my card and buy a ATi 6850 in the following days.
Essay Pro