AMD Radeon RX 550 vs ATI Radeon HD 4830
Graphics Processor
| GPU model | Lexa | RV770 |
|---|---|---|
| GPU variant | Lexa PRO (215-0904018) | RV770 LE (215-0669075) |
| Architecture | GCN 4.0 | TeraScale |
| Foundry | GlobalFoundries | TSMC |
| Manufacturing process | 14 nm | 55 nm |
| Number of transistors | 2,200 million | 956 million |
| Die size | 103 mm² | 256 mm² |
Graphics Card
| Release date | Apr 20th, 2017 | Oct 21st, 2008 |
|---|---|---|
| Generation | Polaris | Radeon R700 |
| Production | End-of-life | End-of-life |
| Launch price | 79 USD | 130 USD |
| Interface | PCIe 3.0 x8 | PCIe 2.0 x16 |
| Predecessor | Arctic Islands | Radeon R600 |
| Successor | Vega | Evergreen |
| Reviews | — | 43 in our database |
Clocks
| Base clock | 1100 MHz | — |
|---|---|---|
| Boost clock | 1183 MHz | — |
| Memory clock | 1750 MHz 7 Gbps effective | 900 MHz 1800 Mbps effective |
| GPU clock | — | 575 MHz |
Memory Configuration
| Memory size | 2 GB | 512 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR3 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 112.0 GB/s | 57.60 GB/s |
Render Configuration
| Shading units | 512 | 640 |
|---|---|---|
| TMUs | 32 | 32 |
| ROPs | 16 | 16 |
| Compute units | 8 | 8 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 512 KB | 256 KB |
Performance
| Pixel rate | 18.93 GPixel/s | 9.200 GPixel/s |
|---|---|---|
| Texture rate | 37.86 GTexel/s | 18.40 GTexel/s |
| FP16 (half) performance | 1,211 GFLOPS (1:1) | — |
| FP32 (float) performance | 1,211 GFLOPS | 736.0 GFLOPS |
| FP64 (double) performance | 75.71 GFLOPS (1:16) | 147.2 GFLOPS (1:5) |
Dimensions & Outputs
| Slot width | Dual-slot | Single-slot |
|---|---|---|
| Length | 145 mm 5.7 inches | 246 mm 9.7 inches |
| TDP | 50 W | 95 W |
| Suggested PSU | 250 W | 250 W |
| Outputs | 1x DVI1x HDMI1x DisplayPort | 2x DVI1x S-Video |
| Power connectors | None | 1x 6-pin |
| Board number | D090-01 | B501-31 |
| Width | — | 111 mm 4.4 inches |
| Height | — | 20 mm 0.8 inches |
API Support & Features
| DirectX | 12 (12_0) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 4.6 | 3.3 |
| OpenCL | 2.1 | 1.1 |
| Vulkan | 1.2 | — |
| Shader model | 6.4 | 4.1 |
