NVIDIA GeForce GT 640 OEM Rebrand vs AMD Radeon R7 M260X
What is the difference between NVIDIA GeForce GT 640 OEM Rebrand and AMD Radeon R7 M260X. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GF116 | GPU Name | Opal |
| GF116-150-A1 | Model number | Opal PRO |
| Fermi 2.0 | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 40 nm | Process Size | 28 nm |
| 1,170 million | Transistors | 950 million |
| 238 mm² | Die Size | 77 mm² |
Graphics Card
| Apr 24th, 2012 | Release Date | Dec 6th, 2015 |
| GeForce 600 | Family | Crystal System (R7 M200) |
| End-of-life | Production | Active |
| GeForce 500 | Predecessor | Solar System |
| PCIe 2.0 x16 | Bus Interface | PCIe 3.0 x8 |
Memory
| 1536 MB | Memory Size | 1024 MB |
| DDR3 | Memory Type | GDDR5 |
| 192 bit | Memory Bus | 128 bit |
| 38.40 GB/s | Bandwidth | 64.00 GB/s |
Performance
| 4.320 GPixel/s | Pixel fillrate | 5.720 GPixel/s |
| 17.28 GTexel/s | Texture fillrate | 17.16 GTexel/s |
| 414.7 GFLOPS | FP32 (float) performance | 549.1 GFLOPS |
Clock Speeds
| 800 MHz 1600 Mbps effective | Memory Clock | 1000 MHz 4 Gbps effective |
Render Config
| 144 | Shading Units | 384 |
| 24 | TMUs | 24 |
| 24 | ROPs | 8 |
| 64 KB (per SM) | L1 Cache | 16 KB (per CU) |
| 384 KB | L2 Cache | 256 KB |
Board Design
| 75 W | Thermal design power (TDP) | unknown |
| 2x DVI 1x mini-HDMI | Display Connectors | No outputs |
| None | Power Connectors | None |
API support
| 12 (11_0) | DirectX | 12 (11_1) |
| 4.6 | OpenGL | 4.6 |
| 1.1 | OpenCL | 1.2 |
| N/A | Vulkan | 1.2 |
| 5.1 | Shader Model | 5.1 |