ATI Radeon X800 CrossFire Edition vs NVIDIA GeForce 6800 Ultra
Graphics Processor
| GPU model | R423 | NV40 |
|---|---|---|
| Architecture | R400 | Curie |
| Foundry | TSMC | TSMC |
| Manufacturing process | 130 nm | 130 nm |
| Number of transistors | 160 million | 222 million |
| Die size | 289 mm² | 287 mm² |
| GPU variant | — | 6800 Ultra |
Graphics Card
| Release date | Oct 28th, 2005 | Apr 14th, 2004 |
|---|---|---|
| Generation | Radeon R400 PCIe | GeForce 6 AGP |
| Production | End-of-life | End-of-life |
| Interface | PCIe 1.0 x16 | AGP 8x |
| Reviews | 226 in our database | 115 in our database |
| Predecessor | Radeon R300 | GeForce FX |
| Successor | Radeon R500 PCIe | GeForce 7 AGP |
Clocks
| GPU clock | 500 MHz | 425 MHz |
|---|---|---|
| Memory clock | 500 MHz 1000 Mbps effective | 550 MHz 1100 Mbps effective |
Memory Configuration
| Memory size | 256 MB | 256 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR3 |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 32.00 GB/s | 35.20 GB/s |
Render Configuration
| Pixel shaders | 16 | 16 |
|---|---|---|
| Vertex shaders | 6 | 6 |
| TMUs | 16 | 16 |
| ROPs | 16 | 16 |
Performance
| Pixel rate | 8.000 GPixel/s | 6.800 GPixel/s |
|---|---|---|
| Vertex rate | 750.0 MVertices/s | 637.5 MVertices/s |
| Texture rate | 8.000 GTexel/s | 6.800 GTexel/s |
Dimensions & Outputs
| Slot width | Dual-slot | Single-slot |
|---|---|---|
| TDP | unknown | unknown |
| Suggested PSU | 200 W | 200 W |
| Outputs | 2x DVI | 2x DVI1x S-Video |
| Power connectors | None | 2x Molex |
| Length | — | 216 mm 8.5 inches |
| Board number | — | P201 |
API Support & Features
| DirectX | 9.0b (9_2) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 2.1 | 2.1 |
| OpenCL | — | — |
| Vulkan | — | — |
| Pixel shader | 2.0b | — |
| Vertex shader | 2.0b | — |
| Shader model | — | 3.0 |
