EVGA GeForce GTX 750 Ti Memory Detail: 2048MB GDDR5 Memory Bit Width: 128 Bit Bus Type: PCI-E 3.0 EVGA GTX 750 Ti cards give you the gaming horsepower to take on today's most demanding titles in full 1080p HD. EVGA's 24/7 Technical Support Base Clock: 1020 MHz / Boost Clock: 1085 MHz Memory Clock: 5400 MHz Effective CUDA Cores: 640 Memory Detail: 2048MB GDDR5 Memory Bit Width 128 Bit / Memory Speed: 0.4ns / Memory Bandwidth: 86.4 GB/s Recommended PSU: 400W or greater power supply PCI Express, PCI Express 2.0 or PCI Express 3.0 compliant motherboard with one graphics slot.