gpuAMD
AMD Radeon HD 7970
The last great Bitcoin GPU before ASICs
Hashrate
675 MH/s
Power
300W
Efficiency
444 J/MH
MSRP
$550
The HD 7970 delivered ~675 MH/s on SHA-256 — the peak of graphics-card Bitcoin mining before Avalon ASICs shipped in 2013. After ASICs arrived, GPUs were permanently obsolete for serious Bitcoin hashrate.