ATI Radeon X800 XT vs NVIDIA GeForce 9400 GT
Graphics Processor
| GPU model | R423 | G86 |
|---|---|---|
| GPU variant | R423 XT (215RBJAGA12F) | — |
| Architecture | R400 | Tesla |
| Foundry | TSMC | TSMC |
| Manufacturing process | 130 nm | 80 nm |
| Number of transistors | 160 million | 210 million |
| Die size | 289 mm² | 127 mm² |
Graphics Card
| Release date | Dec 1st, 2004 | Aug 1st, 2008 |
|---|---|---|
| Generation | Radeon R400 PCIe | GeForce 9 |
| Production | End-of-life | End-of-life |
| Interface | PCIe 1.0 x16 | PCIe 2.0 x16 |
| Reviews | 226 in our database | 6 in our database |
| Predecessor | Radeon R300 | GeForce 8 |
| Successor | Radeon R500 PCIe | GeForce 200 |
Clocks
| GPU clock | 500 MHz | 459 MHz |
|---|---|---|
| Memory clock | 500 MHz 1000 Mbps effective | 600 MHz 1200 Mbps effective |
| Shader clock | — | 918 MHz |
Memory Configuration
| Memory size | 256 MB | 128 MB |
|---|---|---|
| Memory type | GDDR3 | DDR2 |
| Memory bus width | 256 bit | 64 bit |
| Bandwidth | 32.00 GB/s | 9.600 GB/s |
Render Configuration
| Pixel shaders | 16 | — |
|---|---|---|
| Vertex shaders | 6 | — |
| TMUs | 16 | 8 |
| ROPs | 16 | 4 |
| Shading units | — | 16 |
| SM count | — | 2 |
| Cache L2 | — | 16 KB |
Performance
| Pixel rate | 8.000 GPixel/s | 1.836 GPixel/s |
|---|---|---|
| Vertex rate | 750.0 MVertices/s | — |
| Texture rate | 8.000 GTexel/s | 3.672 GTexel/s |
| FP32 (float) performance | — | 29.38 GFLOPS |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| TDP | 54 W | 50 W |
| Suggested PSU | 250 W | 250 W |
| Outputs | 1x DVI1x VGA1x S-Video | 1x DVI1x VGA1x S-Video |
| Power connectors | 1x 6-pin | None |
| Board number | A319 | P403 |
| Length | — | 168 mm 6.6 inches |
API Support & Features
| DirectX | 9.0b (9_2) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 2.1 | 3.3 |
| OpenCL | — | 1.1 |
| Vulkan | — | — |
| Pixel shader | 2.0b | — |
| Vertex shader | 2.0b | — |
| CUDA | — | 1.1 |
| Shader model | — | 4.0 |
