AMD Radeon HD 7970 GHz Edition vs NVIDIA GeForce GTX 680 Mac Edition
What is the difference between AMD Radeon HD 7970 GHz Edition and NVIDIA GeForce GTX 680 Mac Edition. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Tahiti | GPU Name | GK104 |
| Tahiti XT2 (215-0821065) | Model number | GK104-400-A2 |
| GCN 1.0 | Architecture | Kepler |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 4,313 million | Transistors | 3,540 million |
| 352 mm² | Die Size | 294 mm² |
Graphics Card
| Jun 22nd, 2012 | Release Date | Apr 3rd, 2013 |
| Southern Islands (HD 7900) | Family | GeForce 600 |
| End-of-life | Production | End-of-life |
| 499 USD | Launch Price | 599 USD |
| Northern Islands | Predecessor | GeForce 500 |
| PCIe 3.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 3 GB | Memory Size | 2 GB |
| GDDR5 | Memory Type | GDDR5 |
| 384 bit | Memory Bus | 256 bit |
| 288.0 GB/s | Bandwidth | 192.3 GB/s |
Performance
| 33.60 GPixel/s | Pixel fillrate | 33.86 GPixel/s |
| 134.4 GTexel/s | Texture fillrate | 135.4 GTexel/s |
| 4.301 TFLOPS | FP32 (float) performance | 3.250 TFLOPS |
| 1,075 GFLOPS (1:4) | FP64 (double) performance | 135.4 GFLOPS (1:24) |
Clock Speeds
| 1000 MHz | Base Clock | 1006 MHz |
| 1050 MHz | Boost Clock | 1058 MHz |
| 1500 MHz 6 Gbps effective | Memory Clock | 1502 MHz 6 Gbps effective |
Render Config
| 2048 | Shading Units | 1536 |
| 128 | TMUs | 128 |
| 32 | ROPs | 32 |
| 16 KB (per CU) | L1 Cache | 16 KB (per SMX) |
| 768 KB | L2 Cache | 512 KB |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 275 mm 10.8 inches | Length | 254 mm 10 inches |
| 300 W | Thermal design power (TDP) | 195 W |
| 700 W | Suggested PSU | 450 W |
| 1x DVI 1x HDMI 2x mini-DisplayPort | Display Connectors | 2x DVI 1x HDMI 1x DisplayPort |
| 1x 6-pin + 1x 8-pin | Power Connectors | 2x 6-pin |
API support
| 12 (11_1) | DirectX | 12 (11_0) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 3.0 |
| 1.2 | Vulkan | 1.1 |
| 5.1 | Shader Model | 5.1 |