Gigabyte Graphics Cards GV-N75TOC-2GL OC Edition - Core Clock: Base 1033MHz / Boost 1111MHz (Standard- Base:1020MHz Boost:1085MHz) Powered by NVIDIA GeForce GTX 750 Ti GPU Integrated with the first 2048MB GDDR5 memory and 128-bit memory interface The vendor SKU for this item is GV-N75TOC-2GL Powered by NVIDIA GeForce GTX 750 Ti GPU Integrated with the first 2048MB GDDR5 memory and 128-bit memory interface OC Edition - Core Clock: Base 1033MHz / Boost 1111MHz (Standard- Base:1020MHz Boost:1085MHz) Features Dual-link DVI-I / Display Port / HDMI2 Support PCI Express 3.0 x16 bus interface System power supply requirement: 400W