AMD Radeon HD 8790M vs AMD Radeon RX 570
Graphics Processor
| GPU model | Mars | Polaris 20 |
|---|---|---|
| GPU variant | Mars XTX | Polaris 20 XL (215-0910052) |
| Architecture | GCN 1.0 | GCN 4.0 |
| Foundry | TSMC | GlobalFoundries |
| Manufacturing process | 28 nm | 14 nm |
| Number of transistors | 950 million | 5,700 million |
| Die size | 77 mm² | 232 mm² |
Mobile graphics
| Release date | Apr 1st, 2013 | — |
|---|---|---|
| Generation | Solar System (HD 8700M) | — |
| Production | End-of-life | — |
| Interface | MXM-A (3.0) | — |
| Predecessor | London | — |
| Successor | Crystal System | — |
Clocks
| Base clock | 850 MHz | 1168 MHz |
|---|---|---|
| Boost clock | 900 MHz | 1244 MHz |
| Memory clock | 1000 MHz 4 Gbps effective | 1750 MHz 7 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 64.00 GB/s | 224.0 GB/s |
Render Configuration
| Shading units | 384 | 2048 |
|---|---|---|
| TMUs | 24 | 128 |
| ROPs | 8 | 32 |
| Compute units | 6 | 32 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 256 KB | 2 MB |
Performance
| Pixel rate | 7.200 GPixel/s | 39.81 GPixel/s |
|---|---|---|
| Texture rate | 21.60 GTexel/s | 159.2 GTexel/s |
| FP32 (float) performance | 691.2 GFLOPS | 5.095 TFLOPS |
| FP64 (double) performance | 43.20 GFLOPS (1:16) | 318.5 GFLOPS (1:16) |
| FP16 (half) performance | — | 5.095 TFLOPS (1:1) |
Dimensions & Outputs
| Slot width | MXM Module | Dual-slot |
|---|---|---|
| TDP | unknown | 150 W |
| Outputs | No outputs | 1x DVI1x HDMI3x DisplayPort |
| Power connectors | None | 1x 6-pin |
| Board number | C615 | C940, D000 |
| Length | — | 241 mm 9.5 inches |
| Suggested PSU | — | 450 W |
API Support & Features
| DirectX | 12 (11_1) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 6.4 |
Other Features
Graphics Card
| Release date | — | Apr 18th, 2017 |
|---|---|---|
| Generation | — | Polaris |
| Production | — | Active |
| Launch price | — | 169 USD |
| Current price | — | Amazon / Newegg |
| Interface | — | PCIe 3.0 x16 |
| Reviews | — | 29 in our database |
| Predecessor | — | Arctic Islands |
| Successor | — | Vega |
