AMD Radeon HD 6770 Green Edition vs NVIDIA GeForce GTX 260
Graphics Processor
| GPU model | Juniper | GT200 |
|---|---|---|
| GPU variant | Juniper LE (215-0754009) | G200-100-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 | Apr 19th, 2013 | Jun 16th, 2008 |
|---|---|---|
| Generation | Northern Islands | GeForce 200 |
| Production | End-of-life | End-of-life |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Predecessor | Evergreen | GeForce 9 |
| Successor | Southern Islands | GeForce 400 |
| Launch price | — | 449 USD |
| Reviews | — | 137 in our database |
Clocks
| GPU clock | 700 MHz | 576 MHz |
|---|---|---|
| Memory clock | 667 MHz 1334 Mbps effective | 999 MHz 1998 Mbps effective |
| Shader clock | — | 1242 MHz |
Memory Configuration
| Memory size | 2 GB | 896 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR3 |
| Memory bus width | 128 bit | 448 bit |
| Bandwidth | 21.34 GB/s | 111.9 GB/s |
Render Configuration
| Shading units | 720 | 192 |
|---|---|---|
| TMUs | 36 | 64 |
| ROPs | 16 | 28 |
| Compute units | 9 | — |
| Cache L1 | 8 KB (per CU) | — |
| Cache L2 | 256 KB | 224 KB |
| SM count | — | 24 |
Performance
| Pixel rate | 11.20 GPixel/s | 16.13 GPixel/s |
|---|---|---|
| Texture rate | 25.20 GTexel/s | 36.86 GTexel/s |
| FP32 (float) performance | 1,008 GFLOPS | 476.9 GFLOPS |
| FP64 (double) performance | — | 59.62 GFLOPS (1:8) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 170 mm 6.7 inches | 267 mm 10.5 inches |
| TDP | 86 W | 182 W |
| Suggested PSU | 250 W | 450 W |
| Outputs | 2x DVI1x HDMI2x mini-DisplayPort | 2x DVI1x S-Video |
| Power connectors | — | 2x 6-pin |
| Board number | — | 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 |
