AMD Radeon RX 580 vs Intel Iris Plus Graphics 655
Graphics Processor
| GPU model | Polaris 20 | Coffee Lake GT3e |
|---|---|---|
| GPU variant | Polaris 20 XTX (215-0910038) | — |
| Architecture | GCN 4.0 | Generation 9.5 |
| Foundry | GlobalFoundries | Intel |
| Manufacturing process | 14 nm | 14 nm+++ |
| Number of transistors | 5,700 million | unknown |
| Die size | 232 mm² | unknown |
Graphics Card
| Release date | Apr 18th, 2017 | — |
|---|---|---|
| Generation | Polaris | — |
| Production | Active | — |
| Launch price | 229 USD | — |
| Current price | Amazon / Newegg | — |
| Interface | PCIe 3.0 x16 | — |
| Reviews | 52 in our database | — |
| Predecessor | Arctic Islands | — |
| Successor | Vega | — |
Clocks
| Base clock | 1257 MHz | 300 MHz |
|---|---|---|
| Boost clock | 1340 MHz | 1050 MHz |
| Memory clock | 2000 MHz 8 Gbps effective | System Shared |
Memory Configuration
| Memory size | 8 GB | System Shared |
|---|---|---|
| Memory type | GDDR5 | System Shared |
| Memory bus width | 256 bit | System Shared |
| Bandwidth | 256.0 GB/s | System Dependent |
Render Configuration
| Shading units | 2304 | 384 |
|---|---|---|
| TMUs | 144 | 48 |
| ROPs | 32 | 6 |
| Compute units | 36 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 2 MB | — |
| Execution units | — | 48 |
Performance
| Pixel rate | 42.88 GPixel/s | 6.300 GPixel/s |
|---|---|---|
| Texture rate | 193.0 GTexel/s | 50.40 GTexel/s |
| FP16 (half) performance | 6.175 TFLOPS (1:1) | 1.613 TFLOPS (2:1) |
| FP32 (float) performance | 6.175 TFLOPS | 806.4 GFLOPS |
| FP64 (double) performance | 385.9 GFLOPS (1:16) | 201.6 GFLOPS (1:4) |
Dimensions & Outputs
| Slot width | Dual-slot | IGP |
|---|---|---|
| Length | 241 mm 9.5 inches | — |
| TDP | 185 W | 15 W |
| Suggested PSU | 450 W | — |
| Outputs | 1x HDMI3x DisplayPort | No outputs |
| Power connectors | 1x 8-pin | — |
| Board number | C940, D009-04 | — |
API Support & Features
| DirectX | 12 (12_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 6.4 |
Other Features
Integrated Graphics
| Release date | — | Apr 3rd, 2018 |
|---|---|---|
| Generation | — | HD Graphics-M (Coffee Lake) |
| Production | — | Active |
| Interface | — | Ring Bus |
| Reviews | — | 1 in our database |
