AMD Radeon E9550 MXM vs AMD Radeon R9 390X
What is the difference between AMD Radeon E9550 MXM and AMD Radeon R9 390X. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Ellesmere | GPU Name | Grenada |
| Ellesmere XT | Model number | Grenada XT (215-0880004) |
| GCN 4.0 | Architecture | GCN 2.0 |
| GlobalFoundries | Foundry | TSMC |
| 14 nm | Process Size | 28 nm |
| 5,700 million | Transistors | 6,200 million |
| 232 mm² | Die Size | 438 mm² |
Graphics Card
| Sep 27th, 2016 | Release Date | Jun 18th, 2015 |
| Embedded (9000) | Family | Pirate Islands (R9 300) |
| Active | Production | Active |
| MXM-B (3.0) | Bus Interface | PCIe 3.0 x16 |
Memory
| 8 GB | Memory Size | 8 GB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 512 bit |
| 160.0 GB/s | Bandwidth | 384.0 GB/s |
Performance
| 40.51 GPixel/s | Pixel fillrate | 67.20 GPixel/s |
| 182.3 GTexel/s | Texture fillrate | 184.8 GTexel/s |
| 5.834 TFLOPS | FP32 (float) performance | 5.914 TFLOPS |
| 364.6 GFLOPS (1:16) | FP64 (double) performance | 739.2 GFLOPS (1:8) |
Clock Speeds
| 1250 MHz 5 Gbps effective | Memory Clock | 1500 MHz 6 Gbps effective |
Render Config
| 2304 | Shading Units | 2816 |
| 144 | TMUs | 176 |
| 32 | ROPs | 64 |
| 36 | Compute Units | 44 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 2 MB | L2 Cache | 1024 KB |
Board Design
| MXM Module | Slot Width | Dual-slot |
| 95 W | Thermal design power (TDP) | 275 W |
| 1x HDMI 3x DisplayPort | Display Connectors | 2x DVI 1x HDMI 1x DisplayPort |
| None | Power Connectors | 1x 6-pin + 1x 8-pin |
API support
| 12 (12_0) | DirectX | 12 (12_0) |
| 4.6 | OpenGL | 4.6 |
| 2.1 | OpenCL | 2.0 |
| 1.2 | Vulkan | 1.2 |
| 6.4 | Shader Model | 6.3 |