GPU model | RS880 | RV635 |
---|---|---|
Architecture | TeraScale | TeraScale |
Manufacturing process | 55 nm | 55 nm |
Number of transistors | 181 million | 378 million |
Die size | 67 mm² | 135 mm² |
GPU variant | — | RV635 PRO (215-0682008) |
Foundry | — | TSMC |
Release date | Mar 1st, 2010 | — |
---|---|---|
Generation | Radeon IGP (HD 4000) | — |
Production | End-of-life | — |
Interface | PCIe 1.0 x16 | — |
Successor | Sumo | — |
GPU clock | 500 MHz | 796 MHz |
---|---|---|
Memory clock | System Shared | 396 MHz 792 Mbps effective |
Memory size | System Shared | 1024 MB |
---|---|---|
Memory type | System Shared | DDR2 |
Memory bus width | System Shared | 128 bit |
Bandwidth | System Dependent | 12.67 GB/s |
Shading units | 40 | 120 |
---|---|---|
TMUs | 4 | 8 |
ROPs | 4 | 4 |
Compute units | 2 | 3 |
Cache L2 | — | 128 KB |
Pixel rate | 2.000 GPixel/s | 3.184 GPixel/s |
---|---|---|
Texture rate | 2.000 GTexel/s | 6.368 GTexel/s |
FP32 (float) performance | 40.00 GFLOPS | 191.0 GFLOPS |
Slot width | IGP | Single-slot |
---|---|---|
TDP | unknown | 65 W |
Outputs | No outputs | 2x DVI1x S-Video |
Length | — | 190 mm 7.5 inches |
Suggested PSU | — | 250 W |
DirectX | 10.1 (10_1) | 10.1 (10_1) |
---|---|---|
OpenGL | 3.3 | 3.3 |
OpenCL | 1.0 | — |
Vulkan | — | — |
Shader model | 4.1 | 4.1 |
Release date | — | Nov 22nd, 2009 |
---|---|---|
Generation | — | Radeon R700 |
Production | — | End-of-life |
Interface | — | PCIe 2.0 x16 |
Predecessor | — | Radeon R600 |
Successor | — | Evergreen |