pci perfomace loss?

[thatcardisgood]

well im getting a motherboard with ppci 2.0 and a 3.0 video card how much prefomance will i lose ps. the card is r9 270x

 

[MentalIlness]

I would say...zero to none.

 

[bunnyfubbles]

are you pairing this newer card with an older CPU/motherboard? because if you're buying anything relatively new (IvyBridge or newer), it will likely be PCI-e 3.0. The motherboards have a chipset on them that have PCI-e 2.0 lanes, but the PCI-e 3.0 lanes are provided by the CPU.