ATI Mobility Radeon HD 4850 vs NVIDIA GeForce GT 640M
What is the difference between ATI Mobility Radeon HD 4850 and NVIDIA GeForce GT 640M. Find out which graphics card has better performance.
Graphics Processor (GPU)
| M98 | GPU Name | GK107 |
| TeraScale | Architecture | Kepler |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 28 nm |
| 956 million | Transistors | 1,270 million |
| 256 mm² | Die Size | 118 mm² |
Graphics Card
| Jan 9th, 2009 | Release Date | Mar 22nd, 2012 |
| M9x (Mobility HD 4800) | Family | GeForce 600M |
| End-of-life | Production | End-of-life |
| M8x | Predecessor | GeForce 500M |
| PCIe 2.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 1024 MB | Memory Size | 2 GB |
| GDDR3 | Memory Type | DDR3 |
| 256 bit | Memory Bus | 128 bit |
| 54.40 GB/s | Bandwidth | 28.80 GB/s |
Performance
| 8.000 GPixel/s | Pixel fillrate | 5.000 GPixel/s |
| 20.00 GTexel/s | Texture fillrate | 20.00 GTexel/s |
| 800.0 GFLOPS | FP32 (float) performance | 480.0 GFLOPS |
| 160.0 GFLOPS (1:5) | FP64 (double) performance | 20.00 GFLOPS (1:24) |
Clock Speeds
| 850 MHz 1700 Mbps effective | Memory Clock | 900 MHz 1800 Mbps effective |
| 500 MHz | GPU Clock | 625 MHz |
Render Config
| 800 | Shading Units | 384 |
| 40 | TMUs | 32 |
| 16 | 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
| 10.1 (10_1) | DirectX | 12 (11_0) |
| 3.3 | OpenGL | 4.6 |
| 1.1 | OpenCL | 3.0 |
| N/A | Vulkan | 1.1 |
| 4.1 | Shader Model | 5.1 |