GPU model | R420 | G86 |
---|---|---|
GPU variant | R420 SE | — |
Architecture | R400 | Tesla |
Foundry | TSMC | TSMC |
Manufacturing process | 130 nm | 80 nm |
Number of transistors | 160 million | 210 million |
Die size | 281 mm² | 127 mm² |
Release date | Sep 1st, 2004 | Apr 17th, 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 | — |
Predecessor | Radeon R300 | GeForce 7 PCIe |
Successor | Radeon R500 AGP | GeForce 9 |
GPU clock | 450 MHz | 459 MHz |
---|---|---|
Memory clock | 400 MHz 800 Mbps effective | 400 MHz 800 Mbps effective |
Shader clock | — | 918 MHz |
Memory size | 256 MB | 128 MB |
---|---|---|
Memory type | DDR | DDR2 |
Memory bus width | 256 bit | 64 bit |
Bandwidth | 25.60 GB/s | 6.400 GB/s |
Pixel shaders | 8 | — |
---|---|---|
Vertex shaders | 6 | — |
TMUs | 8 | 8 |
ROPs | 8 | 4 |
Shading units | — | 8 |
SM count | — | 1 |
Cache L2 | — | 16 KB |
Pixel rate | 3.600 GPixel/s | 1.836 GPixel/s |
---|---|---|
Vertex rate | 675.0 MVertices/s | — |
Texture rate | 3.600 GTexel/s | 3.672 GTexel/s |
FP32 (float) performance | — | 14.69 GFLOPS |
Slot width | Single-slot | Single-slot |
---|---|---|
TDP | unknown | 40 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 | — | P413 |
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 |