AMD Radeon RX 550X vs AMD Radeon Vega 3 Mobile
Graphics Processor
| GPU model | Lexa | Picasso |
|---|---|---|
| GPU variant | Lexa PRO (215-0904018) | — |
| Architecture | GCN 4.0 | GCN 5.0 |
| Foundry | GlobalFoundries | GlobalFoundries |
| Manufacturing process | 14 nm | 14 nm |
| Number of transistors | 2,200 million | 4,940 million |
| Die size | 103 mm² | 210 mm² |
Graphics Card
| Release date | Dec 16th, 2018 | — |
|---|---|---|
| Generation | Polaris | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x8 | — |
| Predecessor | Polaris | — |
| Successor | Vega | — |
Clocks
| Base clock | 1100 MHz | 300 MHz |
|---|---|---|
| Boost clock | 1183 MHz | 1000 MHz |
| Memory clock | 1500 MHz 6 Gbps effective | System Shared |
Memory Configuration
| Memory size | 4 GB | System Shared |
|---|---|---|
| Memory type | GDDR5 | System Shared |
| Memory bus width | 128 bit | System Shared |
| Bandwidth | 96.00 GB/s | System Dependent |
Render Configuration
| Shading units | 512 | 192 |
|---|---|---|
| TMUs | 32 | 12 |
| ROPs | 16 | 4 |
| Compute units | 8 | 3 |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 512 KB | — |
Performance
| Pixel rate | 18.93 GPixel/s | 4.000 GPixel/s |
|---|---|---|
| Texture rate | 37.86 GTexel/s | 12.00 GTexel/s |
| FP16 (half) performance | 1,211 GFLOPS (1:1) | 768.0 GFLOPS (2:1) |
| FP32 (float) performance | 1,211 GFLOPS | 384.0 GFLOPS |
| FP64 (double) performance | 75.71 GFLOPS (1:16) | 24.00 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Dual-slot | IGP |
|---|---|---|
| Length | 145 mm 5.7 inches | — |
| TDP | 50 W | 15 W |
| Suggested PSU | 250 W | — |
| Outputs | 1x DVI1x HDMI1x DisplayPort | No outputs |
| Power connectors | None | — |
| Board number | D090 | — |
API Support & Features
| DirectX | 12 (12_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 6.4 |
Other Features
Integrated Graphics
| Release date | — | Jan 6th, 2020 |
|---|---|---|
| Generation | — | Picasso (Vega Mobile) |
| Production | — | Active |
| Interface | — | IGP |
| Predecessor | — | Raven Ridge |
| Successor | — | Renoir |
