Amazon.com: GTX550 Ti 2GB GDDR5 128 Bit PCI Express 1.1 X 16 Dual Fan Graphics Card with Driver CD, 4K HDR Technology, Compatible with Windows 10/7 : Electronics
PCI Express (PCIe) 1.1 vs 2.0 vs 3.0 in 14 Games (Ultra setting) i7 4790k + GTX 1080 [HD 1080p] - YouTube