ATI Radeon X800 GT AGP vs NVIDIA GeForce 8400
Graphics Processor
| GPU model | R420 | G98 |
|---|---|---|
| GPU variant | R420 GT (215RAACGA12F) | — |
| Architecture | R400 | Tesla |
| Foundry | TSMC | TSMC |
| Manufacturing process | 130 nm | 65 nm |
| Number of transistors | 160 million | 210 million |
| Die size | 281 mm² | 86 mm² |
Graphics Card
| Release date | Nov 8th, 2007 | Dec 4th, 2007 |
|---|---|---|
| Generation | Radeon R400 AGP | GeForce 8 |
| Production | End-of-life | End-of-life |
| Interface | AGP 8x | PCIe 2.0 x16 |
| Reviews | 226 in our database | 10 in our database |
| Predecessor | Radeon R300 | GeForce 7 PCIe |
| Successor | Radeon R500 AGP | GeForce 9 |
Clocks
| GPU clock | 473 MHz | 540 MHz |
|---|---|---|
| Memory clock | 493 MHz 986 Mbps effective | 500 MHz 1000 Mbps effective |
| Shader clock | — | 1300 MHz |
Memory Configuration
| Memory size | 256 MB | 256 MB |
|---|---|---|
| Memory type | GDDR3 | DDR2 |
| Memory bus width | 256 bit | 64 bit |
| Bandwidth | 31.55 GB/s | 8.000 GB/s |
Render Configuration
| Pixel shaders | 8 | — |
|---|---|---|
| Vertex shaders | 6 | — |
| TMUs | 8 | 4 |
| ROPs | 8 | 4 |
| Shading units | — | 8 |
| SM count | — | 1 |
| Cache L2 | — | 16 KB |
Performance
| Pixel rate | 3.784 GPixel/s | 2.160 GPixel/s |
|---|---|---|
| Vertex rate | 709.5 MVertices/s | — |
| Texture rate | 3.784 GTexel/s | 2.160 GTexel/s |
| FP32 (float) performance | — | 20.80 GFLOPS |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| TDP | 40 W | 25 W |
| Suggested PSU | 200 W | 200 W |
| Outputs | 1x DVI1x VGA1x S-Video | 1x DVI1x VGA1x S-Video |
| Power connectors | 1x Molex | None |
| Board number | — | P561 |
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 |
