NVIDIA GeForce 256 DDR vs NVIDIA Xbox XGPU-B
Graphics Processor
| GPU model | NV10 | NV2A |
|---|---|---|
| Architecture | Celsius | Kelvin |
| Foundry | TSMC | TSMC |
| Manufacturing process | 220 nm | 150 nm |
| Number of transistors | 17 million | 57 million |
| Die size | 139 mm² | 128 mm² |
| GPU variant | — | XGPU-B |
Graphics Card
| Release date | Dec 23rd, 1999 | Nov 15th, 2001 |
|---|---|---|
| Generation | GeForce 256 | Console GPU |
| Production | End-of-life | End-of-life |
| Interface | AGP 4x | AGP 4x |
| Predecessor | TNT2 | — |
| Successor | GeForce 2 | — |
Clocks
| GPU clock | 120 MHz | 233 MHz |
|---|---|---|
| Memory clock | 150 MHz 300 Mbps effective | 200 MHz 400 MHz effective |
Memory Configuration
| Memory size | 32 MB | 64 MB |
|---|---|---|
| Memory type | DDR | DDR |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 4.800 GB/s | 6.400 GB/s |
Render Configuration
| Pixel shaders | 4 | 4 |
|---|---|---|
| Vertex shaders | 0 | 2 |
| TMUs | 4 | 8 |
| ROPs | 4 | 4 |
Performance
| Pixel rate | 480.0 MPixel/s | 932.0 MPixel/s |
|---|---|---|
| Texture rate | 480.0 MTexel/s | 1.864 GTexel/s |
| Vertex rate | — | 116.5 MVertices/s |
Dimensions & Outputs
| Slot width | Single-slot | IGP |
|---|---|---|
| TDP | unknown | unknown |
| Suggested PSU | 200 W | 350 W |
| Outputs | 1x VGA | No outputs |
| Power connectors | None | — |
| Length | — | 320 mm 12.6 inches |
| Width | — | 100 mm 3.9 inches |
| Height | — | 260 mm 10.2 inches |
| Weight | — | 3.9 kg (8.5 lbs) |
API Support & Features
| DirectX | 7.0 | 8.1 |
|---|---|---|
| OpenGL | 1.2 | 1.4 |
| OpenCL | — | — |
| Vulkan | — | — |
| Pixel shader | — | 1.1 |
| Vertex shader | — | 1.1 |
