| JEMC said: For starters, the 2 boards with the 970 chipset only have 1 electrical x16 PCIE, so none of them are good if you plan to go with 2 graphic cards. And they have differences in the Audio chip and number of USB ports, as well as one having connections for both PS/2 keyboard and mouse while the other only has room for one. Check the comparison http://www.gigabyte.us/products/comparison/list.aspx?ck=2&pids=4717,4591 Regarding the 990, the 990FXA has 2 x16 PCIE slots while the 990XA has one x16 PCIE and one x8 PCIE, as well as having an extra chipset that gives it another 2 6Gb/s SATA ports... on the back. Check the comparison: http://www.gigabyte.us/products/comparison/list.aspx?ck=2&pids=4672,3901 And here, the 4 cards compared: http://www.gigabyte.us/products/comparison/list.aspx?ck=2&pids=4717,4591,4672,3901 To summarize, get one of the 990 mobos if you want to go with 2 cards as having 2x16 or 1x16+1x8 will have little effect. |
So the cheaper 990 is good enuff to run two R9 290s in Crossfire? The weaker GPU slot will not bring down the perfromance?
Btw, can I combine a R9 290 with a next gen AMD card (a future 380 or something) or do they still need to be two cards that are exactly the same?
