NVIDIA GeForce GTX 680M vs AMD Radeon R9 270X
What is the difference between NVIDIA GeForce GTX 680M and AMD Radeon R9 270X. Find out which graphics card has better performance.
Graphics Processor (GPU)
| GK104 | GPU Name | Curacao |
| N13E-GTX-A2 | Model number | Curacao XT (215-0848004) |
| Kepler | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 3,540 million | Transistors | 2,800 million |
| 294 mm² | Die Size | 212 mm² |
Graphics Card
| Jun 4th, 2012 | Release Date | Oct 8th, 2013 |
| GeForce 600M | Family | Volcanic Islands (R9 200) |
| End-of-life | Production | End-of-life |
| GeForce 500M | Predecessor | Sea Islands |
| MXM-B (3.0) | Bus Interface | PCIe 3.0 x16 |
Memory
| 4 GB | Memory Size | 2 GB |
| GDDR5 | Memory Type | GDDR5 |
| 256 bit | Memory Bus | 256 bit |
| 115.2 GB/s | Bandwidth | 179.2 GB/s |
Performance
| 21.22 GPixel/s | Pixel fillrate | 33.60 GPixel/s |
| 84.90 GTexel/s | Texture fillrate | 84.00 GTexel/s |
| 2.038 TFLOPS | FP32 (float) performance | 2.688 TFLOPS |
| 84.90 GFLOPS (1:24) | FP64 (double) performance | 168.0 GFLOPS (1:16) |
Clock Speeds
| 719 MHz | Base Clock | 1000 MHz |
| 758 MHz | Boost Clock | 1050 MHz |
| 900 MHz 3.6 Gbps effective | Memory Clock | 1400 MHz 5.6 Gbps effective |
Render Config
| 1344 | Shading Units | 1280 |
| 112 | TMUs | 80 |
| 32 | ROPs | 32 |
| 16 KB (per SMX) | L1 Cache | 16 KB (per CU) |
| 512 KB | L2 Cache | 512 KB |
Board Design
| MXM Module | Slot Width | Dual-slot |
| 100 W | Thermal design power (TDP) | 180 W |
| No outputs | Display Connectors | 2x DVI 1x HDMI 1x DisplayPort |
| None | Power Connectors | 2x 6-pin |
| P2051B | Board Number | C631, C632 |
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 |