AMD Radeon RX 480 vs AMD Radeon RX 550
Graphics Processor
| GPU model | Ellesmere | Lexa |
|---|---|---|
| GPU variant | Polaris 10 XT (215-0876184) | Lexa PRO (215-0904018) |
| Architecture | GCN 4.0 | GCN 4.0 |
| Foundry | GlobalFoundries | GlobalFoundries |
| Manufacturing process | 14 nm | 14 nm |
| Number of transistors | 5,700 million | 2,200 million |
| Die size | 232 mm² | 103 mm² |
Graphics Card
| Release date | Jun 29th, 2016 | Apr 20th, 2017 |
|---|---|---|
| Generation | Arctic Islands | Polaris |
| Production | Active | End-of-life |
| Launch price | 229 USD | 79 USD |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x8 |
| Reviews | 86 in our database | — |
| Predecessor | Pirate Islands | Arctic Islands |
| Successor | Polaris | Vega |
Clocks
| Base clock | 1120 MHz | 1100 MHz |
|---|---|---|
| Boost clock | 1266 MHz | 1183 MHz |
| Memory clock | 2000 MHz 8 Gbps effective | 1750 MHz 7 Gbps effective |
Memory Configuration
| Memory size | 8 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 128 bit |
| Bandwidth | 256.0 GB/s | 112.0 GB/s |
Render Configuration
| Shading units | 2304 | 512 |
|---|---|---|
| TMUs | 144 | 32 |
| ROPs | 32 | 16 |
| Compute units | 36 | 8 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 2 MB | 512 KB |
Performance
| Pixel rate | 40.51 GPixel/s | 18.93 GPixel/s |
|---|---|---|
| Texture rate | 182.3 GTexel/s | 37.86 GTexel/s |
| FP16 (half) performance | 5.834 TFLOPS (1:1) | 1,211 GFLOPS (1:1) |
| FP32 (float) performance | 5.834 TFLOPS | 1,211 GFLOPS |
| FP64 (double) performance | 364.6 GFLOPS (1:16) | 75.71 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Dual-slot | Dual-slot |
|---|---|---|
| Length | 240 mm 9.4 inches | 145 mm 5.7 inches |
| Width | 95 mm 3.7 inches | — |
| Height | 35 mm 1.4 inches | — |
| TDP | 150 W | 50 W |
| Suggested PSU | 450 W | 250 W |
| Outputs | 1x HDMI3x DisplayPort | 1x DVI1x HDMI1x DisplayPort |
| Power connectors | 1x 6-pin | None |
| Board number | C940, D009-47 | D090-01 |
API Support & Features
| DirectX | 12 (12_0) | 12 (12_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.1 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 6.4 |
