amd
Brand1GB GDDR5
Memory640
Cores72 GB/s
BandwidthAMD Radeon HD 7770 GHz Edition
amd
Brand3GB GDDR5
Memory1792
Cores240 GB/s
BandwidthAMD Radeon HD 7950
AMD Radeon HD 7770 GHz Edition
Radeon HD 7770 GHz Edition
$159 • Feb 2012
Radeon HD 7950
$449 • Jan 2012
AMD Radeon HD 7950
Specs Comparison
| Specification | AMD Radeon HD 7770 GHz Edition | AMD Radeon HD 7950 |
|---|---|---|
| Memory Size | 1 GB | 3 GB |
| Memory Type | GDDR5 | GDDR5 |
| TDP | 80 W | 200 W |
| Core Clock | N/A | N/A |
| Boost Clock | N/A | 800 MHz |
| Memory Bandwidth | 72 GB/s | 240 GB/s |
| Process Size | 28nm | 28nm |
| Architecture | GCN 1.0 | GCN 1.0 |
| Shading Units | 640 | 1792 |
| RT Cores | N/A | N/A |
| TMUs | 40 | 112 |
| ROPs | 16 | 32 |
| Memory Bus | 128-bit | 384-bit |
| Memory Clock | 1125 MHz | 1250 MHz |
| Pixel Rate | 16 GPixel/s | 25.6 GPixel/s |
| Texture Rate | 72 GTexel/s | 89.6 GTexel/s |
| FP32 Performance | 1 GFLOPS | 2.867 GFLOPS |
| L2 Cache | 0.25 MB | 0.75 MB |
| Die Size | 123 mm² | 352 mm² |
| Transistors | 1500 Million | 4313 Million |
| Required PSU | 250 W | 550 W |
| Power Connectors | 1x 6-pin | 2x 6-pin |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| DirectX | 11.1 | 11.1 |
| Vulkan | N/A | N/A |
| OpenGL | 4.6 | 4.6 |
| Foundry | TSMC | TSMC |
Comparison in Synthetic Benchmarks
3DMark Time Spy
Synthetic DirectX 12 benchmark that measures GPU performance in gaming workloads
Graphics Score
AMD Radeon HD 7770 GHz Edition
AMD Radeon HD 7950
Geekbench 6
Cross-platform benchmark that measures GPU compute performance using OpenCL and Metal APIs
OpenCL Score
AMD Radeon HD 7770 GHz Edition
AMD Radeon HD 7950
GFXBench 5.0
Cross-platform 3D graphics benchmark suite that measures GPU performance across different APIs
Aztec Ruins High (FPS)
AMD Radeon HD 7770 GHz Edition
AMD Radeon HD 7950
PassMark G2D
Comprehensive 2D graphics benchmark that measures GPU performance in various graphics operations
G2D Mark
AMD Radeon HD 7770 GHz Edition
AMD Radeon HD 7950
Game Benchmarks Comparison
No game benchmarks available for this combination of GPUs yet.
We're working on collecting performance data for this combination of GPUs. Please check back later.
AMD Radeon HD 7950 Wins!
Based on 4 synthetic benchmarks
AMD Radeon HD 7770 GHz Edition
AMD • 1GB GDDR5
AMD Radeon HD 7950
AMD • 3GB GDDR5
Most Compared GPUs
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