What do you guys think? Can they work together? I am planning to put them onto one motherboard running WinXP. Can I still use MSI Afterb to overclock them separately for each card, and still can overvolt the HD5870s slightly? Anyone running the combination above or similar?
The rest of the rig will consist of:
MSI 890FXA-GD70 (5x PCIE)
USB flash 4 GB with WINXPPro installed, no HDD, no CD/DVD drive
CPU: AMD Athlon II X250/Sempron 140, depends on what I find first
What you are trying to do is achievable. I was running 1 x HD5870 and 1 x HD4870, but now I've got 3 x HD5870. I use MSI to overclock the cards independently, as the card in the middle gets very hot, so it only has a very mild GPU overclock. I've underclocked all 3 memory speeds.