I own the 4870 2GB vapor X. The newer 4890 is 10% faster. But the editor really fails to see why 2GB of Ram on a video card is important. There are a few video RAM hungry games such as Grand Theft Auto 4 that can take Advantage of the 2GB memory buffer. In fact you need a card with 1.64GB RAM to max out all of the settings on GTA4. And You need that on a single card or per card basis if you are using SLI which uses mirroring of the memory. Please test the 2GB cards with GTA4 and check the results. I cannot give you a better reason to to buy a 2GB Card than GTA4. Other than that the vapor X runs like dream and is cool and quiet. I actually ahve a video of myself on youtube wher eI jsut upgraded my computer with the card and put the settings on GTA4 up. there are t3 parts but this is part 3 where I actually mess with the game.
http://www.youtube.com/watch?v=asJC3xlCMew
I have a 3 year old Alienware computer
630watt PSU
Pentium d 830 3.0Ghz
4GB DDR2 675Mhz CAS 4
ATI 4870 2GB Sapphire Vapor-X
Audigy 2 Sound card
160GB 7200RPM HDD
