GPU model | Vega 20 | Amethyst |
---|---|---|
GPU variant | Vega 20 GL | Amethyst PRO (216-0872004) |
Architecture | GCN 5.1 | GCN 3.0 |
Foundry | TSMC | TSMC |
Manufacturing process | 7 nm | 28 nm |
Number of transistors | 13,230 million | 5,000 million |
Die size | 331 mm² | 366 mm² |
Release date | Nov 18th, 2018 | — |
---|---|---|
Generation | Radeon Instinct | — |
Production | Active | — |
Interface | PCIe 4.0 x16 | — |
Base clock | 1200 MHz | — |
---|---|---|
Boost clock | 1800 MHz | — |
Memory clock | 1000 MHz 2 Gbps effective | 1365 MHz 5.5 Gbps effective |
GPU clock | — | 834 MHz |
Memory size | 32 GB | 2 GB |
---|---|---|
Memory type | HBM2 | GDDR5 |
Memory bus width | 4096 bit | 256 bit |
Bandwidth | 1,024 GB/s | 174.7 GB/s |
Shading units | 4096 | 1792 |
---|---|---|
TMUs | 256 | 112 |
ROPs | 64 | 32 |
Compute units | 64 | 28 |
Cache L1 | 16 KB (per CU) | — |
Cache L2 | 4 MB | — |
Pixel rate | 115.2 GPixel/s | 26.69 GPixel/s |
---|---|---|
Texture rate | 460.8 GTexel/s | 93.41 GTexel/s |
FP16 (half) performance | 29.49 TFLOPS (2:1) | — |
FP32 (float) performance | 14.75 TFLOPS | 2.989 TFLOPS |
FP64 (double) performance | 7.373 TFLOPS (1:2) | 373.6 GFLOPS (1:8) |
Slot width | Dual-slot | MXM Module |
---|---|---|
Length | 267 mm 10.5 inches | — |
Width | 111 mm 4.4 inches | — |
TDP | 300 W | 250 W |
Suggested PSU | 700 W | — |
Outputs | 1x mini-DisplayPort | No outputs |
Power connectors | 1x 6-pin + 1x 8-pin | None |
DirectX | 12 (12_1) | 12 (12_0) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 2.1 | 2.0 |
Vulkan | 1.2 | 1.2 |
Shader model | 6.4 | 6.3 |
Release date | — | May 5th, 2015 |
---|---|---|
Generation | — | Crystal System (R9 M300) |
Production | — | End-of-life |
Interface | — | MXM-B (3.0) |
Predecessor | — | Solar System |
Successor | — | Mobility Radeon |