Chip
Model designation
AMD Radeon HD7770
Number of stream processors
640×
Production technology
28 nm
Performance & usage
Use
Game playing
Memory
Size of operational RAM
1 GB
Memory type
DDR5
Frequency
Core frequency
1,100 MHz
Memory frequency
4,500 MHz (4.5 GHz)
Shaders frequency
1,100 MHz
Interface
PC connection
PCI Express x16 3.0
Monitor connection
DisplayPort, DVI, HDMI
Technology
Multiple cards supported
Dual CrossFireX
DirectX version
11.0
Cooling system
Cooling type
Active
Cooling size
Dual-slot
Consumption
TDP
83 W
Auxiliary power supply
1× 6-pin
Recommended power sources
450 W