GPU model | Chelsea | Skylake GT4e |
---|---|---|
GPU variant | Chelsea PRO | — |
Architecture | GCN 1.0 | Generation 9.0 |
Foundry | TSMC | Intel |
Manufacturing process | 28 nm | 14 nm+ |
Number of transistors | 1,500 million | unknown |
Die size | 123 mm² | unknown |
Release date | Apr 24th, 2012 | — |
---|---|---|
Generation | London (HD 7700M) | — |
Production | End-of-life | — |
Interface | PCIe 2.0 x16 | — |
Predecessor | Vancouver | — |
Successor | Solar System | — |
GPU clock | 575 MHz | — |
---|---|---|
Memory clock | 1000 MHz 4 Gbps effective | System Shared |
Base clock | — | 350 MHz |
Boost clock | — | 1050 MHz |
Memory size | 2 GB | System Shared |
---|---|---|
Memory type | GDDR5 | System Shared |
Memory bus width | 128 bit | System Shared |
Bandwidth | 64.00 GB/s | System Dependent |
Shading units | 512 | 576 |
---|---|---|
TMUs | 32 | 72 |
ROPs | 16 | 9 |
Compute units | 8 | — |
Cache L1 | 16 KB (per CU) | — |
Cache L2 | 256 KB | — |
Execution units | — | 72 |
Pixel rate | 9.200 GPixel/s | 9.450 GPixel/s |
---|---|---|
Texture rate | 18.40 GTexel/s | 75.60 GTexel/s |
FP32 (float) performance | 588.8 GFLOPS | 1,210 GFLOPS |
FP64 (double) performance | 36.80 GFLOPS (1:16) | 302.4 GFLOPS (1:4) |
FP16 (half) performance | — | 2.419 TFLOPS (2:1) |
TDP | 28 W | 15 W |
---|---|---|
Outputs | No outputs | No outputs |
Slot width | — | IGP |
DirectX | 12 (11_1) | 12 (12_1) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 1.2 | 3.0 |
Vulkan | 1.2 | 1.2 |
Shader model | 5.1 | 6.4 |
Release date | — | Sep 1st, 2015 |
---|---|---|
Generation | — | HD Graphics-WM (Skylake) |
Production | — | Active |
Interface | — | Ring Bus |
Reviews | — | 1 in our database |