AMD Radeon HD 8970 OEM vs AMD Radeon HD 7970
What is the difference between AMD Radeon HD 8970 OEM and AMD Radeon HD 7970. Find out which graphics card has better performance.
Graphics Processor (GPU)
| Tahiti | GPU Name | Tahiti |
| Tahiti XT (215-0821060) | Model number | Tahiti XT (215-0821060) |
| GCN 1.0 | Architecture | GCN 1.0 |
| TSMC | Foundry | TSMC |
| 28 nm | Process Size | 28 nm |
| 4,313 million | Transistors | 4,313 million |
| 352 mm² | Die Size | 352 mm² |
Graphics Card
| Jan 8th, 2013 | Release Date | Dec 22nd, 2011 |
| Sea Islands (HD 8900) | Family | Southern Islands (HD 7900) |
| End-of-life | Production | End-of-life |
| Southern Islands | Predecessor | Northern Islands |
| PCIe 3.0 x16 | Bus Interface | PCIe 3.0 x16 |
Memory
| 3 GB | Memory Size | 3 GB |
| GDDR5 | Memory Type | GDDR5 |
| 384 bit | Memory Bus | 384 bit |
| 264.0 GB/s | Bandwidth | 264.0 GB/s |
Performance
| 29.60 GPixel/s | Pixel fillrate | 29.60 GPixel/s |
| 118.4 GTexel/s | Texture fillrate | 118.4 GTexel/s |
| 3.789 TFLOPS | FP32 (float) performance | 3.789 TFLOPS |
| 947.2 GFLOPS (1:4) | FP64 (double) performance | 947.2 GFLOPS (1:4) |
Clock Speeds
| 1375 MHz 5.5 Gbps effective | Memory Clock | 1375 MHz 5.5 Gbps effective |
| 925 MHz | GPU Clock | 925 MHz |
Render Config
| 2048 | Shading Units | 2048 |
| 128 | TMUs | 128 |
| 32 | ROPs | 32 |
| 32 | Compute Units | 32 |
| 16 KB (per CU) | L1 Cache | 16 KB (per CU) |
| 768 KB | L2 Cache | 768 KB |
Board Design
| Dual-slot | Slot Width | Dual-slot |
| 274 mm 10.8 inches | Length | 275 mm 10.8 inches |
| 250 W | Thermal design power (TDP) | 250 W |
| 600 W | Suggested PSU | 600 W |
| 1x DVI 1x HDMI 2x mini-DisplayPort | Display Connectors | 1x DVI 1x HDMI 2x mini-DisplayPort |
| 1x 6-pin + 1x 8-pin | Power Connectors | 1x 6-pin + 1x 8-pin |
| C386 | Board Number | C386-37 |
API support
| 12 (11_1) | DirectX | 12 (11_1) |
| 4.6 | OpenGL | 4.6 |
| 1.2 | OpenCL | 1.2 |
| 1.2 | Vulkan | 1.2 |
| 5.1 | Shader Model | 5.1 |