GPU model | Neptune | Rocket Lake GT1 |
---|---|---|
GPU variant | Neptune XT (216-0847000) | — |
Architecture | GCN 1.0 | Generation 12.1 |
Foundry | TSMC | Intel |
Manufacturing process | 28 nm | 14 nm+++ |
Number of transistors | 2,800 million | unknown |
Die size | 212 mm² | unknown |
Release date | May 14th, 2013 | — |
---|---|---|
Generation | Solar System (HD 8900M) | — |
Production | End-of-life | — |
Interface | PCIe 3.0 x16 | — |
Predecessor | London | — |
Successor | Crystal System | — |
Base clock | 850 MHz | 300 MHz |
---|---|---|
Boost clock | 900 MHz | 1300 MHz |
Memory clock | 1200 MHz 4.8 Gbps effective | System Shared |
Memory size | 4 GB | System Shared |
---|---|---|
Memory type | GDDR5 | System Shared |
Memory bus width | 256 bit | System Shared |
Bandwidth | 153.6 GB/s | System Dependent |
Shading units | 1280 | 256 |
---|---|---|
TMUs | 80 | 16 |
ROPs | 32 | 8 |
Compute units | 20 | — |
Cache L1 | 16 KB (per CU) | — |
Cache L2 | 512 KB | — |
Execution units | — | 32 |
Pixel rate | 28.80 GPixel/s | 10.40 GPixel/s |
---|---|---|
Texture rate | 72.00 GTexel/s | 20.80 GTexel/s |
FP32 (float) performance | 2.304 TFLOPS | 665.6 GFLOPS |
FP64 (double) performance | 144.0 GFLOPS (1:16) | 166.4 GFLOPS (1:4) |
FP16 (half) performance | — | 1,331 GFLOPS (2:1) |
Slot width | MXM Module | IGP |
---|---|---|
TDP | 100 W | 15 W |
Outputs | No outputs | No outputs |
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 | — | Mar 30th, 2021 |
---|---|---|
Generation | — | HD Graphics (Rocket Lake) |
Production | — | Active |
Interface | — | Ring Bus |
Reviews | — | 1 in our database |