Can r9 280x utilize pcie 3.0 i Will either buy corshair formula z or msi z87 gaming g45 What is better motherboard for black red build and i wanna know What Will be performance loss in fps without pcie 3.0 on motherboard
The price difference between a card that has PCIe x16 and one without is immaterial. Yes, you will get better performance slotting the card in the x16 slot for which it was designed. Get and MSI with one PCI x16 and you'll be golden.