GPU model | Polaris 21 | Navi 14 |
---|---|---|
GPU variant | Polaris 21 XT (215-0908004) | Navi 14 PRO XTM |
Architecture | GCN 4.0 | RDNA 1.0 |
Foundry | GlobalFoundries | TSMC |
Manufacturing process | 14 nm | 7 nm |
Number of transistors | 3,000 million | 6,400 million |
Die size | 123 mm² | 158 mm² |
Release date | Apr 18th, 2017 | Feb 10th, 2020 |
---|---|---|
Generation | Radeon Pro Mac (500 Series) | Radeon Pro Mobile (W5x00M) |
Production | Active | Active |
Interface | PCIe 3.0 x8 | PCIe 4.0 x8 |
GPU clock | 907 MHz | — |
---|---|---|
Memory clock | 1270 MHz 5.1 Gbps effective | 1750 MHz 14 Gbps effective |
Base clock | — | 1000 MHz |
Boost clock | — | 1700 MHz |
Memory size | 4 GB | 4 GB |
---|---|---|
Memory type | GDDR5 | GDDR6 |
Memory bus width | 128 bit | 128 bit |
Bandwidth | 81.28 GB/s | 224.0 GB/s |
Shading units | 1024 | 1408 |
---|---|---|
TMUs | 64 | 88 |
ROPs | 16 | 32 |
Compute units | 16 | 22 |
Cache L1 | 16 KB (per CU) | — |
Cache L2 | 1024 KB | 2 MB |
Pixel rate | 14.51 GPixel/s | 54.40 GPixel/s |
---|---|---|
Texture rate | 58.05 GTexel/s | 149.6 GTexel/s |
FP16 (half) performance | 1.858 TFLOPS (1:1) | 9.574 TFLOPS (2:1) |
FP32 (float) performance | 1.858 TFLOPS | 4.787 TFLOPS |
FP64 (double) performance | 116.1 GFLOPS (1:16) | 299.2 GFLOPS (1:16) |
Slot width | IGP | — |
---|---|---|
TDP | 75 W | 85 W |
Outputs | No outputs | No outputs |
Power connectors | None | None |
DirectX | 12 (12_0) | 12 (12_1) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 2.1 | 2.1 |
Vulkan | 1.2 | 1.2 |
Shader model | 6.4 | 6.5 |