ATI Radeon X1800 CrossFire Edition vs NVIDIA GeForce 8600 GTS
Graphics Processor
| GPU model | R520 | G84 |
|---|---|---|
| GPU variant | R520 CE (215RFFBKA15FG) | G84-400-A2 |
| Architecture | R500 | Tesla |
| Foundry | TSMC | TSMC |
| Manufacturing process | 90 nm | 80 nm |
| Number of transistors | 321 million | 289 million |
| Die size | 288 mm² | 169 mm² |
Graphics Card
| Release date | Dec 20th, 2005 | Apr 17th, 2007 |
|---|---|---|
| Generation | Radeon R500 PCIe | GeForce 8 |
| Production | End-of-life | End-of-life |
| Interface | PCIe 1.0 x16 | PCIe 1.0 x16 |
| Reviews | 76 in our database | 183 in our database |
| Predecessor | Radeon R400 PCIe | GeForce 7 PCIe |
| Successor | Radeon R600 | GeForce 9 |
| Launch price | — | 199 USD |
Clocks
| GPU clock | 600 MHz | 675 MHz |
|---|---|---|
| Memory clock | 700 MHz 1400 Mbps effective | 1000 MHz 2 Gbps effective |
| Shader clock | — | 1450 MHz |
Memory Configuration
| Memory size | 512 MB | 256 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR3 |
| Memory bus width | 256 bit | 128 bit |
| Bandwidth | 44.80 GB/s | 32.00 GB/s |
Render Configuration
| Pixel shaders | 16 | — |
|---|---|---|
| Vertex shaders | 8 | — |
| TMUs | 16 | 16 |
| ROPs | 16 | 8 |
| Shading units | — | 32 |
| SM count | — | 4 |
| Cache L2 | — | 32 KB |
Performance
| Pixel rate | 9.600 GPixel/s | 5.400 GPixel/s |
|---|---|---|
| Vertex rate | 1.200 GVertices/s | — |
| Texture rate | 9.600 GTexel/s | 10.80 GTexel/s |
| FP32 (float) performance | — | 92.80 GFLOPS |
Dimensions & Outputs
| Slot width | Dual-slot | Single-slot |
|---|---|---|
| TDP | 113 W | 60 W |
| Suggested PSU | 300 W | 250 W |
| Outputs | 2x DVI1x S-Video | 2x DVI1x S-Video |
| Power connectors | 1x 6-pin | 1x 6-pin |
| Board number | A721 | P401 |
| Length | — | 198 mm 7.8 inches |
API Support & Features
| DirectX | 9.0c (9_3) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 2.1 | 3.3 |
| OpenCL | — | 1.1 |
| Vulkan | — | — |
| Shader model | 3.0 | 4.0 |
| CUDA | — | 1.1 |
