AMD Radeon HD 6790 vs AMD Radeon 540X Mobile
What is the difference between AMD Radeon HD 6790 and AMD Radeon 540X Mobile. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Barts | GPU Name | Lexa |
| Barts LE (215-0798002) | Model number | Lexa PRO (215-0904018) |
| TeraScale 2 | Architecture | GCN 4.0 |
| TSMC | Foundry | GlobalFoundries |
| 40 nm | Process Size | 14 nm |
| 1,700 million | Transistors | 2,200 million |
| 255 mm² | Die Size | 103 mm² |
Graphics Card
| Apr 4th, 2011 | Release Date | Feb 11th, 2019 |
| Northern Islands (HD 6700) | Family | Mobility Radeon (M500X) |
| End-of-life | Production | Active |
| Evergreen | Predecessor | Crystal System |
| PCIe 2.0 x16 | Bus Interface | PCIe 3.0 x8 |
Memory
| 1024 MB | Memory Size | 2 GB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 64 bit |
| 134.4 GB/s | Bandwidth | 32.00 GB/s |
Performance
| 13.44 GPixel/s | Pixel fillrate | 17.52 GPixel/s |
| 33.60 GTexel/s | Texture fillrate | 35.04 GTexel/s |
| 1,344 GFLOPS | FP32 (float) performance | 1,121 GFLOPS |
Clock Speeds
| 1050 MHz 4.2 Gbps effective | Memory Clock | 1000 MHz 4 Gbps effective |
Render Config
| 800 | Shading Units | 512 |
| 40 | TMUs | 32 |
| 16 | ROPs | 16 |
| 10 | Compute Units | 8 |
| 8 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 512 KB | L2 Cache | 512 KB |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 150 W | Thermal design power (TDP) | 50 W |
| 2x DVI 1x HDMI 1x DisplayPort | Display Connectors | No outputs |
| 2x 6-pin | Power Connectors | None |
API support
| 11.2 (11_0) | DirectX | 12 (12_0) |
| 4.4 | OpenGL | 4.6 |
| 1.2 | OpenCL | 2.1 |
| N/A | Vulkan | 1.2 |
| 5.0 | Shader Model | 6.4 |