Gigabyte R7 250 DDR3-2GB DVI-D/D-SUB/HDMI OC Graphics Card (GV-R725OC-2GI REV2.0) Gigabyte Ultra Durable 2 Components - Ultra Cooling Low RDS(on) MOSFET Design - Low Power Loss Ferrite Core Chokes - Longer Life All-Solid Capacitor Design Gigabyte Custom-Designed 100mm Fansink for maximum cooling efficiency and whisper silent operation. Core Clock: 1100 MHz - Memory Clock: 1800 MHz Features Dual-link DVI-I / HDMI / D-Sub Recommended Minimum System PSU 400W