GPU model | Whistler | Mars |
---|---|---|
GPU variant | Whistler PRO (216-0810005) | Mars LE |
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 | Mar 28th, 2012 | Jan 10th, 2014 |
---|---|---|
Generation | London (HD 7600M) | Crystal System (R5 M200) |
Production | End-of-life | End-of-life |
Interface | PCIe 2.0 x16 | PCIe 3.0 x8 |
Predecessor | Vancouver | Solar System |
Successor | Solar System | Mobility Radeon |
GPU clock | 485 MHz | — |
---|---|---|
Memory clock | 800 MHz 1600 Mbps effective | 900 MHz 1800 Mbps effective |
Base clock | — | 650 MHz |
Boost clock | — | 700 MHz |
Memory size | 1024 MB | 1024 MB |
---|---|---|
Memory type | DDR3 | DDR3 |
Memory bus width | 128 bit | 64 bit |
Bandwidth | 25.60 GB/s | 14.40 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 | 128 KB |
Pixel rate | 3.880 GPixel/s | 5.600 GPixel/s |
---|---|---|
Texture rate | 11.64 GTexel/s | 16.80 GTexel/s |
FP32 (float) performance | 465.6 GFLOPS | 537.6 GFLOPS |
FP64 (double) performance | — | 33.60 GFLOPS (1:16) |
TDP | 20 W | 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 |