AMD Radeon HD 8790M vs AMD Radeon HD 7770M
What is the difference between AMD Radeon HD 8790M and AMD Radeon HD 7770M. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Mars | GPU Name | Chelsea |
| Mars XTX | Model number | Chelsea XT |
| GCN 1.0 | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 950 million | Transistors | 1,500 million |
| 77 mm² | Die Size | 123 mm² |
Graphics Card
| Apr 1st, 2013 | Release Date | Apr 24th, 2012 |
| Solar System (HD 8700M) | Family | London (HD 7700M) |
| End-of-life | Production | End-of-life |
| London | Predecessor | Vancouver |
| MXM-A (3.0) | Bus Interface | PCIe 2.0 x16 |
Memory
| 2 GB | Memory Size | 1024 MB |
| GDDR5 | Memory Type | GDDR5 |
| 128 bit | Memory Bus | 128 bit |
| 64.00 GB/s | Bandwidth | 64.00 GB/s |
Performance
| 7.200 GPixel/s | Pixel fillrate | 10.80 GPixel/s |
| 21.60 GTexel/s | Texture fillrate | 21.60 GTexel/s |
| 691.2 GFLOPS | FP32 (float) performance | 691.2 GFLOPS |
| 43.20 GFLOPS (1:16) | FP64 (double) performance | 43.20 GFLOPS (1:16) |
Clock Speeds
| 1000 MHz 4 Gbps effective | Memory Clock | 1000 MHz 4 Gbps effective |
Render Config
| 384 | Shading Units | 512 |
| 24 | TMUs | 32 |
| 8 | ROPs | 16 |
| 6 | Compute Units | 8 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 256 KB | L2 Cache | 256 KB |
Board Design
| unknown | Thermal design power (TDP) | 32 W |
| No outputs | Display Connectors | No outputs |
API support
| 12 (11_1) | DirectX | 12 (11_1) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 1.2 |
| 1.2 | Vulkan | 1.2 |
| 5.1 | Shader Model | 5.1 |