GPU model | Whistler | Tropo |
---|---|---|
GPU variant | Whistler XT (216-0810001) | Tropo XT2 |
Architecture | TeraScale 2 | GCN 1.0 |
Foundry | TSMC | TSMC |
Manufacturing process | 40 nm | 28 nm |
Number of transistors | 716 million | 1,500 million |
Die size | 104 mm² | 123 mm² |
Release date | Jan 4th, 2011 | May 5th, 2015 |
---|---|---|
Generation | Vancouver (HD 6700M) | Crystal System (R9 M300) |
Production | End-of-life | End-of-life |
Interface | MXM-A (3.0) | PCIe 3.0 x16 |
Predecessor | Manhattan | Solar System |
Successor | London | Mobility Radeon |
GPU clock | 725 MHz | — |
---|---|---|
Memory clock | 900 MHz 3.6 Gbps effective | 900 MHz 1800 Mbps effective |
Base clock | — | 1000 MHz |
Boost clock | — | 1015 MHz |
Memory size | 1024 MB | 2 GB |
---|---|---|
Memory type | GDDR5 | DDR3 |
Memory bus width | 128 bit | 128 bit |
Bandwidth | 57.60 GB/s | 28.80 GB/s |
Shading units | 480 | 640 |
---|---|---|
TMUs | 24 | 40 |
ROPs | 8 | 16 |
Compute units | 6 | 10 |
Cache L1 | 8 KB (per CU) | 16 KB (per CU) |
Cache L2 | 256 KB | 256 KB |
Pixel rate | 5.800 GPixel/s | 16.24 GPixel/s |
---|---|---|
Texture rate | 17.40 GTexel/s | 40.60 GTexel/s |
FP32 (float) performance | 696.0 GFLOPS | 1,299 GFLOPS |
FP64 (double) performance | — | 81.20 GFLOPS (1:16) |
Slot width | MXM Module | — |
---|---|---|
TDP | 35 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 |