The board has PCIe 2.0 x16 slots, so the gtx 690 should work OK. Same with the two gtx 980's. Two 980's will really strain the CPU. Depending on which CPU you have, it might cause bottlenecking.
The board has PCIe 2.0 x16 slots, so the gtx 690 should work OK. Same with the two gtx 980's. Two 980's will really strain the CPU. Depending on which CPU you have, it might cause bottlenecking.