AMD Radeon RX 550X vs ATI Graphics Ultra Pro VLB
Graphics Processor
| GPU model | Lexa | Mach32 |
|---|---|---|
| GPU variant | Lexa PRO (215-0904018) | Mach32-03 (2106880003) |
| Architecture | GCN 4.0 | Mach |
| Foundry | GlobalFoundries | — |
| Manufacturing process | 14 nm | 700 nm |
| Number of transistors | 2,200 million | unknown |
| Die size | 103 mm² | 90 mm² |
Graphics Card
| Release date | Dec 16th, 2018 | 1993 |
|---|---|---|
| Generation | Polaris | Mach 32 |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x8 | PCI |
| Predecessor | Polaris | Mach 8 |
| Successor | Vega | Mach 64 |
| Launch price | — | 499 USD |
Clocks
| Base clock | 1100 MHz | — |
|---|---|---|
| Boost clock | 1183 MHz | — |
| Memory clock | 1500 MHz 6 Gbps effective | 10 MHz |
| GPU clock | — | 10 MHz |
Memory Configuration
| Memory size | 4 GB | 1 MB |
|---|---|---|
| Memory type | GDDR5 | VRAM |
| Memory bus width | 128 bit | 64 bit |
| Bandwidth | 96.00 GB/s | 80.00 MB/s |
Render Configuration
| Shading units | 512 | — |
|---|---|---|
| TMUs | 32 | 0 |
| ROPs | 16 | 1 |
| Compute units | 8 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 512 KB | — |
| Pixel shaders | — | 1 |
| Vertex shaders | — | 0 |
Performance
| Pixel rate | 18.93 GPixel/s | 10.00 MPixel/s |
|---|---|---|
| Texture rate | 37.86 GTexel/s | 0 MTexel/s |
| FP16 (half) performance | 1,211 GFLOPS (1:1) | — |
| FP32 (float) performance | 1,211 GFLOPS | — |
| FP64 (double) performance | 75.71 GFLOPS (1:16) | — |
Dimensions & Outputs
| Slot width | Dual-slot | Single-slot |
|---|---|---|
| Length | 145 mm 5.7 inches | — |
| TDP | 50 W | unknown |
| Suggested PSU | 250 W | 200 W |
| Outputs | 1x DVI1x HDMI1x DisplayPort | 1x VGA |
| Power connectors | None | — |
| Board number | D090 | — |
API Support & Features
| DirectX | 12 (12_0) | — |
|---|---|---|
| OpenGL | 4.6 | — |
| OpenCL | 2.1 | — |
| Vulkan | 1.2 | — |
| Shader model | 6.4 | — |
| Pixel shader | — | — |
| Vertex shader | — | — |
