Summary: The 5870 has some of the best performance numbers in its generation. I needed one of these to set up a Bitcoin mining rig and the numbers you get from this are just great for the price. I used this in an Ubuntu Linux machine and the drivers work like a charm. I highly recommend these!
Excellent video card. Uses less power, runs cooler
KrK "-- KrK", Amazon
16 March 2011
Summary: I bought 2 of these in October 2010. They are excellent, and virtually silent. When I tax them the fan speeds up and they consume more power, but they are still quiet compared to many cards. They stay cooler with the Vapor-X technology, and are stable. Two thumbs up! Just a few things to consider: They are huge. May have problems fitting in some systems that don't have a lot of room. Cards are double-wide full length.
Summary: COOLING AND NOISE: It runs at 34C idle and 50C completely maxed out in Battlefield Bad Company 2, and still the fan doesn't go higher then 30% speed so its considerably quieter then my previous 8800GTS which ran at 90C and 100% fan!!! That card was really annoying. You could notice the relief in your ears when you turned the computer off. Now, with this card, everythings definitely quieter and less annoying.
Summary: Most graphics card manufactures use the tried and true formula of utilizing a fan and heatsink to cool the GPU. They would change the heatsink layout or add another fan, but the concept essentially stays the same. However, Sapphire's Vapor-X is more than just a re-tweaking, but a new and improved cooling solution for high performance graphics cards.