PERFORMANCENVIDIA GTX 750 Ti640 CUDA Cores1176 MHz Base Clock1255 MHz Boost ClockMEMORY2048 MB, 128 bit GDDR55400 MHz (effective)86.4 GB/s Memory BandwidthINTERFACEPCI-E 3.0 16xDVI-I, HDMI, DisplayPortRESOLUTION & REFRESHMax Monitors Supported: 3240Hz Max Refresh RateMax Analog : 2048x1536Max Digital : 4096x2160DIMENSIONSHeight: 4.376in - 111.15mmLength: 6.7in - 170.18mmWidth: Dual SlotOPERATING SYSTEM SUPPORTWindows 8 32/64bitWindows 7 32/64bitWindows Vista 32/64bitWindows XP 32/64bitREQUIREMENTSMinimum of a 300 Watt power supply.Total Power Draw : 60 Watts