AMD Radeon RX 570X vs AMD Radeon RX 640 Mobile
Graphics Processor
| GPU model | Polaris 20 | Polaris 23 |
|---|---|---|
| GPU variant | Polaris 20 XL (215-0910052) | Polaris 23 XT |
| Architecture | GCN 4.0 | GCN 4.0 |
| Foundry | GlobalFoundries | GlobalFoundries |
| Manufacturing process | 14 nm | 14 nm |
| Number of transistors | 5,700 million | 2,200 million |
| Die size | 232 mm² | 103 mm² |
Graphics Card
| Release date | Apr 11th, 2018 | — |
|---|---|---|
| Generation | Polaris | — |
| Production | Active | — |
| Interface | PCIe 3.0 x16 | — |
| Predecessor | Polaris | — |
| Successor | Vega | — |
Clocks
| Base clock | 1168 MHz | 1082 MHz |
|---|---|---|
| Boost clock | 1244 MHz | 1218 MHz |
| Memory clock | 1750 MHz 7 Gbps effective | 1500 MHz 6 Gbps effective |
Memory Configuration
| Memory size | 8 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 64 bit |
| Bandwidth | 224.0 GB/s | 48.00 GB/s |
Render Configuration
| Shading units | 2048 | 640 |
|---|---|---|
| TMUs | 128 | 40 |
| ROPs | 32 | 16 |
| Compute units | 32 | 10 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 2 MB | 512 KB |
Performance
| Pixel rate | 39.81 GPixel/s | 19.49 GPixel/s |
|---|---|---|
| Texture rate | 159.2 GTexel/s | 48.72 GTexel/s |
| FP16 (half) performance | 5.095 TFLOPS (1:1) | 1.559 TFLOPS (1:1) |
| FP32 (float) performance | 5.095 TFLOPS | 1.559 TFLOPS |
| FP64 (double) performance | 318.5 GFLOPS (1:16) | 97.44 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 241 mm 9.5 inches | — |
| TDP | 150 W | 50 W |
| Suggested PSU | 450 W | — |
| Outputs | 1x DVI1x HDMI3x DisplayPort | No outputs |
| Power connectors | 1x 6-pin | None |
| Board number | D000 | — |
API Support & Features
| DirectX | 12 (12_0) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 6.4 |
Other Features
Mobile graphics
| Release date | — | May 13th, 2019 |
|---|---|---|
| Generation | — | Mobility Radeon (M600) |
| Production | — | Active |
| Interface | — | PCIe 3.0 x8 |
| Predecessor | — | Crystal System |
