Trying to buy a good board for around 100 USD that supports 1600 mhz ram , Am3 up to thuban, and 2 pcie slots for crossfire, and supports overclocking. Would prefer msi boards but up to other names as well. I would prefer ATX but micro atx is fine in my Antec three hundred
It means when you run a single card setup, it runs at x16 (standard speeds) & when you run a Crossfire setup, it runs at x8,x8 for both cards. This is the preferred minimum setup for Crissfire. This is the only sub $100 board with this feature. It is basically a 899GX/FX board at 870 prices.
Well 2 GPUs can run in dual x16,dual x8 or x16x4 mode;however,the performance difference isn't very noticeable between these 3 configs unless you play at resolutions like 2560x1600.So dual x8 is a great option for CF.
If you need more info about SLI/CF,read the SLI/CF FAQ,it should help you http://www.tomshardware.com/forum/245454-33-crossfire-f...