GPU model | Fiji | Polaris 20 |
---|---|---|
GPU variant | Fiji XT C8 (215-0862040) | Polaris 20 XTR (215-0910066) |
Architecture | GCN 3.0 | GCN 4.0 |
Foundry | TSMC | GlobalFoundries |
Manufacturing process | 28 nm | 14 nm |
Number of transistors | 8,900 million | 5,700 million |
Die size | 596 mm² | 232 mm² |
Release date | Jun 24th, 2015 | Mar 9th, 2020 |
---|---|---|
Generation | Pirate Islands | Polaris |
Production | End-of-life | Active |
Launch price | 649 USD | — |
Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
Predecessor | Volcanic Islands | Arctic Islands |
Successor | Arctic Islands | Vega |
GPU clock | 1050 MHz | — |
---|---|---|
Memory clock | 500 MHz 1000 Mbps effective | 2000 MHz 8 Gbps effective |
Base clock | — | 1257 MHz |
Boost clock | — | 1380 MHz |
Memory size | 4 GB | 8 GB |
---|---|---|
Memory type | HBM | GDDR5 |
Memory bus width | 4096 bit | 256 bit |
Bandwidth | 512.0 GB/s | 256.0 GB/s |
Shading units | 4096 | 2304 |
---|---|---|
TMUs | 256 | 144 |
ROPs | 64 | 32 |
Compute units | 64 | 36 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 2 MB | 2 MB |
Pixel rate | 67.20 GPixel/s | 44.16 GPixel/s |
---|---|---|
Texture rate | 268.8 GTexel/s | 198.7 GTexel/s |
FP16 (half) performance | 8.602 TFLOPS (1:1) | 6.359 TFLOPS (1:1) |
FP32 (float) performance | 8.602 TFLOPS | 6.359 TFLOPS |
FP64 (double) performance | 537.6 GFLOPS (1:16) | 397.4 GFLOPS (1:16) |
Slot width | Dual-slot | Dual-slot |
---|---|---|
Length | 195 mm 7.7 inches | 241 mm 9.5 inches |
Width | 115 mm 4.5 inches | — |
Height | 39 mm 1.5 inches | — |
TDP | 275 W | 175 W |
Suggested PSU | 600 W | 450 W |
Outputs | 1x HDMI3x DisplayPort | 1x HDMI3x DisplayPort |
Power connectors | 2x 8-pin | 1x 8-pin |
Board number | C880-37 | C940 |
DirectX | 12 (12_0) | 12 (12_0) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 2.0 | 2.1 |
Vulkan | 1.2 | 1.2 |
Shader model | 6.3 | 6.4 |