ATI Radeon X1800 XT vs NVIDIA GeForce 6800 XT
Graphics Processor
| GPU model | R520 | NV40 |
|---|---|---|
| GPU variant | R520 XT (215RFNBKA15FG) | — |
| Architecture | R500 | Curie |
| Foundry | TSMC | TSMC |
| Manufacturing process | 90 nm | 130 nm |
| Number of transistors | 321 million | 222 million |
| Die size | 288 mm² | 287 mm² |
Graphics Card
| Release date | Oct 1st, 2005 | Sep 30th, 2005 |
|---|---|---|
| Generation | Radeon R500 PCIe | GeForce 6 AGP |
| Production | End-of-life | End-of-life |
| Launch price | 549 USD | — |
| Interface | PCIe 1.0 x16 | AGP 8x |
| Reviews | 76 in our database | 115 in our database |
| Predecessor | Radeon R400 PCIe | GeForce FX |
| Successor | Radeon R600 | GeForce 7 AGP |
Clocks
| GPU clock | 600 MHz | 300 MHz |
|---|---|---|
| Memory clock | 700 MHz 1400 Mbps effective | 350 MHz 700 Mbps effective |
Memory Configuration
| Memory size | 512 MB | 256 MB |
|---|---|---|
| Memory type | GDDR3 | DDR |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 44.80 GB/s | 22.40 GB/s |
Render Configuration
| Pixel shaders | 16 | 8 |
|---|---|---|
| Vertex shaders | 8 | 4 |
| TMUs | 16 | 8 |
| ROPs | 16 | 8 |
Performance
| Pixel rate | 9.600 GPixel/s | 2.400 GPixel/s |
|---|---|---|
| Vertex rate | 1.200 GVertices/s | 300.0 MVertices/s |
| Texture rate | 9.600 GTexel/s | 2.400 GTexel/s |
Dimensions & Outputs
| Slot width | Dual-slot | Single-slot |
|---|---|---|
| TDP | 113 W | unknown |
| Suggested PSU | 300 W | 200 W |
| Outputs | 2x DVI1x S-Video | 1x DVI1x VGA1x S-Video |
| Power connectors | 1x 6-pin | 1x Molex |
| Board number | A520 | P212 |
API Support & Features
| DirectX | 9.0c (9_3) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 2.1 | 2.1 |
| OpenCL | — | — |
| Vulkan | — | — |
| Shader model | 3.0 | 3.0 |
