NVIDIA GeForce GT 645M vs AMD Radeon R6 M255DX
What is the difference between NVIDIA GeForce GT 645M and AMD Radeon R6 M255DX. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GK107 | GPU Name | Jet |
| N13P-GS | Model number | Jet PRO (216-0568010) |
| Kepler | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 1,270 million | Transistors | 690 million |
| 118 mm² | Die Size | 56 mm² |
Graphics Card
| Oct 1st, 2012 | Release Date | Jan 7th, 2014 |
| GeForce 600M | Family | Crystal System (Rx M200) |
| End-of-life | Production | End-of-life |
| PCIe 3.0 x16 | Bus Interface | IGP |
Memory
| 2 GB | Memory Size | System Shared |
| DDR3 | Memory Type | System Shared |
| 128 bit | Memory Bus | System Shared |
| 28.80 GB/s | Bandwidth | System Dependent |
Performance
| 5.672 GPixel/s | Pixel fillrate | 6.840 GPixel/s |
| 22.69 GTexel/s | Texture fillrate | 17.10 GTexel/s |
| 544.5 GFLOPS | FP32 (float) performance | 547.2 GFLOPS |
| 22.69 GFLOPS (1:24) | FP64 (double) performance | 34.20 GFLOPS (1:16) |
Clock Speeds
| 900 MHz 1800 Mbps effective | Memory Clock | System Shared |
Render Config
| 384 | Shading Units | 320 |
| 32 | TMUs | 20 |
| 16 | ROPs | 8 |
| 16 KB (per SMX) | L1 Cache | 16 KB (per CU) |
| 256 KB | L2 Cache | 128 KB |
Board Design
| 32 W | Thermal design power (TDP) | unknown |
| No outputs | Display Connectors | No outputs |
API support
| 12 (11_0) | DirectX | 12 (11_1) |
| 4.6 | OpenGL | 4.6 |
| 3.0 | OpenCL | 1.2 |
| 1.1 | Vulkan | 1.2 |
| 5.1 | Shader Model | 5.1 |