Product Compare
NVIDIA GeForce GTX 980 vs AMD Radeon HD 6850
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Sep 2014 | Oct 2010 |
| Generation | GeForce 900 | Northern Islands |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 3.0 x16 | PCIe 2.0 x16 |
| Clock Speeds | ||
| Base Clock | 1127 MHz | |
| Boost Clock | 1216 MHz | |
| Memory Clock | 1753 MHz | 1000 MHz |
| Memory | ||
| Memory Size | 4GB | 1024MB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 256bit | 256bit |
| Bandwidth | 224.4GB/s | 128.0GB/s |
| Render Config | ||
| Shading Units | 2048 | 960 |
| TMUs | 128 | 48 |
| ROPs | 64 | 32 |
| L1 Cache | 48 KB (per SMM) | 8 KB (per CU) |
| L2 Cache | 2 MB | 512 KB |
| Compute Units | 12 | |
| Theoretical Performance | ||
| Pixel Rate | 77.82 GPixel/s | 24.80 GPixel/s |
| Texture Rate | 155.6 GTexel/s | 37.20 GTexel/s |
| FP32 (float) | 4.981 TFLOPS | 1488 GFLOPS |
| FP64 (double) | 155.6 GFLOPS | |
| Graphics Processor | ||
| GPU Name | GM204 | Barts |
| GPU Variant | GM204-400-A1 | Barts PRO(215-0798006) |
| Architecture | Maxwell 2.0 | TeraScale 2 |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 40 nm |
| Transistors | 5.2 billion | 1.7 billion |
| Die Size | 398 mm² | 255 mm² |
| Board Design | ||
| TDP | 165W | 127W |
| Suggested PSU | 450 W | 300 W |
| Outputs | 1x DVI1x HDMI 2.03x DisplayPort 1.4a | 2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1 |
| Power Connectors | 2x 6-pin | 1x 6-pin |
| Graphics Features | ||
| DirectX | 12 (12_1) | 11.2 (11_0) |
| OpenGL | 4.6 | 4.4 |
| OpenCL | 3.0 | 1.2 |
| Vulkan | 1.3 | N/A |
| CUDA | 5.2 | |
| Shader Model | 6.4 | 5.0 |