GPU model | Chelsea | GM20B |
---|---|---|
GPU variant | Chelsea PRO | ODNX02-A2 |
Architecture | GCN 1.0 | Maxwell 2.0 |
Foundry | TSMC | TSMC |
Manufacturing process | 28 nm | 20 nm |
Number of transistors | 1,500 million | 2,000 million |
Die size | 123 mm² | 118 mm² |
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 | 1600 MHz 3.2 Gbps effective |
Base clock | — | 384 MHz |
Boost clock | — | 768 MHz |
Memory size | 2 GB | 4 GB |
---|---|---|
Memory type | GDDR5 | DDR4 |
Memory bus width | 128 bit | 64 bit |
Bandwidth | 64.00 GB/s | 25.60 GB/s |
Shading units | 512 | 256 |
---|---|---|
TMUs | 32 | 16 |
ROPs | 16 | 16 |
Compute units | 8 | — |
Cache L1 | 16 KB (per CU) | — |
Cache L2 | 256 KB | — |
SMM count | — | 2 |
Pixel rate | 9.200 GPixel/s | 12.29 GPixel/s |
---|---|---|
Texture rate | 18.40 GTexel/s | 12.29 GTexel/s |
FP32 (float) performance | 588.8 GFLOPS | 393.2 GFLOPS |
FP64 (double) performance | 36.80 GFLOPS (1:16) | 12.29 GFLOPS (1:32) |
FP16 (half) performance | — | 786.4 GFLOPS (2:1) |
TDP | 28 W | 15 W |
---|---|---|
Outputs | No outputs | No outputs |
Slot width | — | IGP |
Length | — | 239 mm 9.4 inches |
Width | — | 101 mm 4 inches |
Height | — | 28 mm 1.1 inches |
Weight | — | 0.4 kg (0.88 lbs) |
Suggested PSU | — | 350 W |
Power connectors | — | None |
Board number | — | HAC-001 |
DirectX | 12 (11_1) | 12 (12_1) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 1.2 | 1.2 |
Vulkan | 1.2 | 1.1 |
Shader model | 5.1 | 6.4 |
CUDA | — | 5.3 |
Release date | — | Mar 17th, 2017 |
---|---|---|
Generation | — | Console GPU |
Production | — | End-of-life |
Interface | — | IGP |
Launch price | — | 299 USD |