AMD Radeon R9 285 vs AMD Radeon RX 570
Graphics Processor
| GPU model | Tonga | Polaris 20 |
|---|---|---|
| GPU variant | Tonga PRO (215-0851128) | Polaris 20 XL (215-0910052) |
| Architecture | GCN 3.0 | GCN 4.0 |
| Foundry | TSMC | GlobalFoundries |
| Manufacturing process | 28 nm | 14 nm |
| Number of transistors | 5,000 million | 5,700 million |
| Die size | 366 mm² | 232 mm² |
Graphics Card
| Release date | Sep 2nd, 2014 | Apr 18th, 2017 |
|---|---|---|
| Generation | Volcanic Islands | Polaris |
| Production | End-of-life | Active |
| Launch price | 249 USD | 169 USD |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Reviews | 59 in our database | 29 in our database |
| Predecessor | Sea Islands | Arctic Islands |
| Successor | Pirate Islands | Vega |
| Current price | — | Amazon / Newegg |
Clocks
| GPU clock | 918 MHz | — |
|---|---|---|
| Memory clock | 1375 MHz 5.5 Gbps effective | 1750 MHz 7 Gbps effective |
| Base clock | — | 1168 MHz |
| Boost clock | — | 1244 MHz |
Memory Configuration
| Memory size | 2 GB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 176.0 GB/s | 224.0 GB/s |
Render Configuration
| Shading units | 1792 | 2048 |
|---|---|---|
| TMUs | 112 | 128 |
| ROPs | 32 | 32 |
| Compute units | 28 | 32 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 512 KB | 2 MB |
Performance
| Pixel rate | 29.38 GPixel/s | 39.81 GPixel/s |
|---|---|---|
| Texture rate | 102.8 GTexel/s | 159.2 GTexel/s |
| FP16 (half) performance | 3.290 TFLOPS (1:1) | 5.095 TFLOPS (1:1) |
| FP32 (float) performance | 3.290 TFLOPS | 5.095 TFLOPS |
| FP64 (double) performance | 205.6 GFLOPS (1:16) | 318.5 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 221 mm 8.7 inches | 241 mm 9.5 inches |
| Width | 109 mm 4.3 inches | — |
| Height | 36 mm 1.4 inches | — |
| TDP | 190 W | 150 W |
| Suggested PSU | 450 W | 450 W |
| Outputs | 2x DVI1x HDMI1x DisplayPort | 1x DVI1x HDMI3x DisplayPort |
| Power connectors | 2x 6-pin | 1x 6-pin |
| Board number | C766 | C940, D000 |
API Support & Features
| 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 |
