GPU model | R423 | RV620 |
---|---|---|
GPU variant | R423 GL-SE | RV620 LE |
Architecture | R400 | TeraScale |
Foundry | TSMC | TSMC |
Manufacturing process | 130 nm | 55 nm |
Number of transistors | 160 million | 181 million |
Die size | 289 mm² | 67 mm² |
Release date | May 1st, 2004 | Dec 10th, 2007 |
---|---|---|
Generation | FireGL | Radeon R600 |
Production | End-of-life | End-of-life |
Interface | PCIe 1.0 x16 | PCIe 2.0 x16 |
Reviews | 5 in our database | 7 in our database |
Predecessor | — | Radeon R500 PCIe |
Successor | — | Radeon R700 |
GPU clock | 450 MHz | 600 MHz |
---|---|---|
Memory clock | 350 MHz 700 Mbps effective | 500 MHz 1000 Mbps effective |
Memory size | 128 MB | 512 MB |
---|---|---|
Memory type | DDR | DDR2 |
Memory bus width | 256 bit | 64 bit |
Bandwidth | 22.40 GB/s | 8.000 GB/s |
Pixel shaders | 12 | — |
---|---|---|
Vertex shaders | 6 | — |
TMUs | 12 | 4 |
ROPs | 12 | 4 |
Shading units | — | 40 |
Compute units | — | 2 |
Cache L2 | — | 64 KB |
Pixel rate | 5.400 GPixel/s | 2.400 GPixel/s |
---|---|---|
Vertex rate | 675.0 MVertices/s | — |
Texture rate | 5.400 GTexel/s | 2.400 GTexel/s |
FP32 (float) performance | — | 48.00 GFLOPS |
Slot width | Single-slot | Single-slot |
---|---|---|
Length | 211 mm 8.3 inches | 168 mm 6.6 inches |
Width | 111 mm 4.4 inches | — |
TDP | unknown | 50 W |
Suggested PSU | 200 W | 250 W |
Outputs | 2x DVI1x S-Video | 2x DMS-59 |
Power connectors | None | None |
Board number | A457-00 | B629 |
DirectX | 9.0b (9_2) | 10.1 (10_1) |
---|---|---|
OpenGL | 2.1 | 3.3 |
OpenCL | — | — |
Vulkan | — | — |
Pixel shader | 2.0b | — |
Vertex shader | 2.0b | — |
Shader model | — | 4.1 |