AMD Radeon HD 8770M vs NVIDIA GeForce GT 640M
What is the difference between AMD Radeon HD 8770M and NVIDIA GeForce GT 640M. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Mars | GPU Name | GK107 |
| Mars XT | Model number | N13P-GS |
| GCN 1.0 | Architecture | Kepler |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 950 million | Transistors | 1,270 million |
| 77 mm² | Die Size | 118 mm² |
Graphics Card
| Apr 1st, 2013 | Release Date | Mar 22nd, 2012 |
| Solar System (HD 8700M) | Family | GeForce 600M |
| End-of-life | Production | End-of-life |
| London | Predecessor | GeForce 500M |
| PCIe 3.0 x8 | Bus Interface | PCIe 3.0 x16 |
Memory
| 2 GB | Memory Size | 2 GB |
| GDDR5 | Memory Type | DDR3 |
| 128 bit | Memory Bus | 128 bit |
| 72.00 GB/s | Bandwidth | 28.80 GB/s |
Performance
| 6.600 GPixel/s | Pixel fillrate | 5.000 GPixel/s |
| 19.80 GTexel/s | Texture fillrate | 20.00 GTexel/s |
| 633.6 GFLOPS | FP32 (float) performance | 480.0 GFLOPS |
| 39.60 GFLOPS (1:16) | FP64 (double) performance | 20.00 GFLOPS (1:24) |
Clock Speeds
| 1125 MHz 4.5 Gbps effective | Memory Clock | 900 MHz 1800 Mbps effective |
Render Config
| 384 | Shading Units | 384 |
| 24 | TMUs | 32 |
| 8 | ROPs | 16 |
| 16 KB (per CU) | L1 Cache | 16 KB (per SMX) |
| 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_0) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 3.0 |
| 1.2 | Vulkan | 1.1 |
| 5.1 | Shader Model | 5.1 |