AMD Radeon HD 7770 GHz Edition vs ATI Radeon HD 5970
Graphics Processor
| GPU model | Cape Verde | Hemlock |
|---|---|---|
| GPU variant | Cape Verde XT | Hemlock XT (215-0735075) |
| Architecture | GCN 1.0 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 40 nm |
| Number of transistors | 1,500 million | 2,154 million |
| Die size | 123 mm² | 334 mm² |
Graphics Card
| Release date | Feb 15th, 2012 | Nov 18th, 2009 |
|---|---|---|
| Generation | Southern Islands | Evergreen |
| Production | End-of-life | End-of-life |
| Launch price | 159 USD | 699 USD |
| Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Reviews | 97 in our database | 74 in our database |
| Predecessor | Northern Islands | Radeon R700 |
| Successor | Sea Islands | Northern Islands |
Clocks
| GPU clock | 1000 MHz | 725 MHz |
|---|---|---|
| Memory clock | 1125 MHz 4.5 Gbps effective | 1000 MHz 4 Gbps effective |
Memory Configuration
| Memory size | 1024 MB | 1024 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 72.00 GB/s | 128.0 GB/s |
Render Configuration
| Shading units | 640 | 1600 |
|---|---|---|
| TMUs | 40 | 80 |
| ROPs | 16 | 32 |
| Compute units | 10 | 20 |
| Cache L1 | 16 KB (per CU) | 8 KB (per CU) |
| Cache L2 | 256 KB | 512 KB |
Performance
| Pixel rate | 16.00 GPixel/s | 23.20 GPixel/s |
|---|---|---|
| Texture rate | 40.00 GTexel/s | 58.00 GTexel/s |
| FP32 (float) performance | 1,280 GFLOPS | 2.320 TFLOPS |
| FP64 (double) performance | 80.00 GFLOPS (1:16) | 464.0 GFLOPS (1:5) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 210 mm 8.3 inches | 311 mm 12.2 inches |
| TDP | 80 W | 294 W |
| Suggested PSU | 250 W | 600 W |
| Outputs | 1x DVI1x HDMI2x mini-DisplayPort | 2x DVI1x mini-DisplayPort |
| Power connectors | 1x 6-pin | 1x 6-pin + 1x 8-pin |
| Board number | C441, C468 | C000-37 |
| Width | — | 111 mm 4.4 inches |
| Height | — | 40 mm 1.6 inches |
API Support & Features
| DirectX | 12 (11_1) | 11.2 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.4 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.2 | — |
| Shader model | 5.1 | 5.0 |
