GPU model | Whistler | Opal |
---|---|---|
GPU variant | Whistler LE | Opal XT |
Architecture | TeraScale 2 | GCN 1.0 |
Foundry | TSMC | TSMC |
Manufacturing process | 40 nm | 28 nm |
Number of transistors | 716 million | 950 million |
Die size | 104 mm² | 77 mm² |
Release date | Jan 4th, 2011 | Jan 9th, 2014 |
---|---|---|
Generation | Vancouver (HD 6600M) | Crystal System (R7 M200) |
Production | End-of-life | End-of-life |
Interface | PCIe 2.0 x16 | PCIe 3.0 x8 |
Predecessor | Manhattan | Solar System |
Successor | London | Mobility Radeon |
GPU clock | 600 MHz | — |
---|---|---|
Memory clock | 800 MHz 1600 Mbps effective | 900 MHz 1800 Mbps effective |
Base clock | — | 725 MHz |
Boost clock | — | 825 MHz |
Memory size | 1024 MB | 2 GB |
---|---|---|
Memory type | DDR3 | DDR3 |
Memory bus width | 128 bit | 128 bit |
Bandwidth | 25.60 GB/s | 28.80 GB/s |
Shading units | 480 | 384 |
---|---|---|
TMUs | 24 | 24 |
ROPs | 8 | 8 |
Compute units | 6 | 6 |
Cache L1 | 8 KB (per CU) | 16 KB (per CU) |
Cache L2 | 256 KB | 256 KB |
Pixel rate | 4.800 GPixel/s | 6.600 GPixel/s |
---|---|---|
Texture rate | 14.40 GTexel/s | 19.80 GTexel/s |
FP32 (float) performance | 576.0 GFLOPS | 633.6 GFLOPS |
TDP | unknown | unknown |
---|---|---|
Outputs | No outputs | No outputs |
DirectX | 11.2 (11_0) | 12 (11_1) |
---|---|---|
OpenGL | 4.4 | 4.6 |
OpenCL | 1.2 | 1.2 |
Vulkan | — | 1.2 |
Shader model | 5.0 | 5.1 |