GPU model | M88 | R481 |
---|---|---|
Architecture | TeraScale | R400 |
Foundry | TSMC | TSMC |
Manufacturing process | 55 nm | 130 nm |
Number of transistors | 666 million | 160 million |
Die size | 192 mm² | 297 mm² |
GPU variant | — | R481 XT (215RAFCGA11F) |
Release date | Jun 4th, 2008 | — |
---|---|---|
Generation | M8x (Mobility HD 3800) | — |
Production | End-of-life | — |
Interface | PCIe 2.0 x16 | — |
Reviews | 2 in our database | — |
Predecessor | M7x | — |
Successor | M9x | — |
GPU clock | 580 MHz | 520 MHz |
---|---|---|
Memory clock | 750 MHz 1500 Mbps effective | 540 MHz 1080 Mbps effective |
Memory size | 512 MB | 256 MB |
---|---|---|
Memory type | GDDR3 | GDDR3 |
Memory bus width | 256 bit | 256 bit |
Bandwidth | 48.00 GB/s | 34.56 GB/s |
Shading units | 320 | — |
---|---|---|
TMUs | 16 | 16 |
ROPs | 16 | 16 |
Compute units | 4 | — |
Cache L2 | 256 KB | — |
Pixel shaders | — | 16 |
Vertex shaders | — | 6 |
Pixel rate | 9.280 GPixel/s | 8.320 GPixel/s |
---|---|---|
Texture rate | 9.280 GTexel/s | 8.320 GTexel/s |
FP32 (float) performance | 371.2 GFLOPS | — |
FP64 (double) performance | 74.24 GFLOPS (1:5) | — |
Vertex rate | — | 780.0 MVertices/s |
TDP | 35 W | 69 W |
---|---|---|
Outputs | No outputs | 1x DVI1x VGA1x S-Video |
Slot width | — | Dual-slot |
Suggested PSU | — | 250 W |
Power connectors | — | 1x Molex |
DirectX | 10.1 (10_1) | 9.0b (9_2) |
---|---|---|
OpenGL | 3.3 | 2.1 |
OpenCL | — | — |
Vulkan | — | — |
Shader model | 4.1 | — |
Pixel shader | — | 2.0b |
Vertex shader | — | 2.0b |
Release date | — | Feb 28th, 2005 |
---|---|---|
Generation | — | Radeon R400 AGP |
Production | — | End-of-life |
Interface | — | AGP 8x |
Reviews | — | 58 in our database |
Predecessor | — | Radeon R300 |
Successor | — | Radeon R500 AGP |