AMD Radeon HD 6990M Rebrand vs AMD Radeon R9 M370X Mac Edition
What is the difference between AMD Radeon HD 6990M Rebrand and AMD Radeon R9 M370X Mac Edition. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Broadway | GPU Name | Tropo |
| Broadway XTX | Model number | Tropo XT |
| TeraScale 2 | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 40 nm | Process Size | 28 nm |
| 1,040 million | Transistors | 1,500 million |
| 166 mm² | Die Size | 123 mm² |
Graphics Card
| Jul 12th, 2011 | Release Date | May 5th, 2015 |
| Vancouver (HD 6900M) | Family | Crystal System (R9 M300) |
| End-of-life | Production | Active |
| Manhattan | Predecessor | Solar System |
| MXM-B (3.0) | Bus Interface | PCIe 3.0 x16 |
Memory
| 1024 MB | Memory Size | 2 GB |
| GDDR5 | Memory Type | GDDR5 |
| 128 bit | Memory Bus | 128 bit |
| 70.40 GB/s | Bandwidth | 72.00 GB/s |
Performance
| 12.80 GPixel/s | Pixel fillrate | 12.80 GPixel/s |
| 32.00 GTexel/s | Texture fillrate | 32.00 GTexel/s |
| 1,280 GFLOPS | FP32 (float) performance | 1,024 GFLOPS |
Clock Speeds
| 1100 MHz 4.4 Gbps effective | Memory Clock | 1125 MHz 4.5 Gbps effective |
Render Config
| 800 | Shading Units | 640 |
| 40 | TMUs | 40 |
| 16 | ROPs | 16 |
| 14 | Compute Units | 10 |
| 8 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 256 KB | L2 Cache | 256 KB |
Board Design
| 100 W | Thermal design power (TDP) | unknown |
| No outputs | Display Connectors | No outputs |
API support
| 11.2 (11_0) | DirectX | 12 (11_1) |
| 4.4 | OpenGL | 4.6 |
| 1.2 | OpenCL | 1.2 |
| N/A | Vulkan | 1.2 |
| 5.0 | Shader Model | 5.1 |