AMD Radeon HD 6770 vs NVIDIA GeForce GTX 280
Graphics Processor
| GPU model | Juniper | GT200 |
|---|---|---|
| GPU variant | Juniper XT (215-0754013) | G200-300-A2 |
| Architecture | TeraScale 2 | Tesla 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 65 nm |
| Number of transistors | 1,040 million | 1,400 million |
| Die size | 166 mm² | 576 mm² |
Graphics Card
| Release date | Jan 21st, 2011 | Jun 16th, 2008 |
|---|---|---|
| Generation | Northern Islands | GeForce 200 |
| Production | End-of-life | End-of-life |
| Launch price | 129 USD | 649 USD |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Reviews | 35 in our database | 59 in our database |
| Predecessor | Evergreen | GeForce 9 |
| Successor | Southern Islands | GeForce 400 |
Clocks
| GPU clock | 850 MHz | 602 MHz |
|---|---|---|
| Memory clock | 1200 MHz 4.8 Gbps effective | 1107 MHz 2.2 Gbps effective |
| Shader clock | — | 1296 MHz |
Memory Configuration
| Memory size | 1024 MB | 1024 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR3 |
| Memory bus width | 128 bit | 512 bit |
| Bandwidth | 76.80 GB/s | 141.7 GB/s |
Render Configuration
| Shading units | 800 | 240 |
|---|---|---|
| TMUs | 40 | 80 |
| ROPs | 16 | 32 |
| Compute units | 10 | — |
| Cache L1 | 8 KB (per CU) | — |
| Cache L2 | 256 KB | 256 KB |
| SM count | — | 30 |
Performance
| Pixel rate | 13.60 GPixel/s | 19.26 GPixel/s |
|---|---|---|
| Texture rate | 34.00 GTexel/s | 48.16 GTexel/s |
| FP32 (float) performance | 1,360 GFLOPS | 622.1 GFLOPS |
| FP64 (double) performance | — | 77.76 GFLOPS (1:8) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 198 mm 7.8 inches | 267 mm 10.5 inches |
| TDP | 108 W | 236 W |
| Suggested PSU | 300 W | 550 W |
| Outputs | 2x DVI1x HDMI2x mini-DisplayPort | 2x DVI1x S-Video |
| Power connectors | 1x 6-pin | 1x 6-pin + 1x 8-pin |
| Board number | C010 | P651 |
API Support & Features
| DirectX | 11.2 (11_0) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 4.4 | 3.3 |
| OpenCL | 1.2 | 1.1 |
| Vulkan | — | — |
| Shader model | 5.0 | 4.0 |
| CUDA | — | 1.3 |
