Product Compare
NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon HD 7950
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jun 2025 | Jan 2012 |
| Generation | Navi IV | Southern Islands |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 5.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 1700 MHz | |
| Boost Clock | 3130 MHz | |
| Memory Clock | 2518 MHz | 1250 MHz |
| Memory | ||
| Memory Size | 8GB | 3GB |
| Memory Type | GDDR6 | GDDR5 |
| Memory Bus | 128bit | 384bit |
| Bandwidth | 322.3GB/s | 240.0GB/s |
| Render Config | ||
| SM Count | 80 | |
| Compute Units | 32 | 28 |
| Shading Units | 2048 | 1792 |
| TMUs | 128 | 112 |
| ROPs | 64 | 32 |
| Tensor Cores | 320 | |
| RT Cores | 32 | |
| L1 Cache | 128 KB (per SM) | 16 KB (per CU) |
| L2 Cache | 4 MB | 768 KB |
| L3 Cache | 32 MB | |
| Theoretical Performance | ||
| Pixel Rate | 200.3 GPixel/s | 25.60 GPixel/s |
| Texture Rate | 400.6 GTexel/s | 89.60 GTexel/s |
| FP16 (half) | 51.28 TFLOPS | |
| FP32 (float) | 25.64 TFLOPS | 2.867 TFLOPS |
| FP64 (double) | 801.3 GFLOPS | 716.8 GFLOPS |
| Graphics Processor | ||
| GPU Name | Navi 44 | Tahiti |
| GPU Variant | Navi 44 XT(215-176400102) | Tahiti PRO(215-0821056) |
| Architecture | RDNA 4.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 4 nm | 28 nm |
| Transistors | 29.7 billion | 4.313 billion |
| Die Size | 199 mm² | 352 mm² |
| Board Design | ||
| TDP | 150W | 200W |
| Suggested PSU | 450 W | 550 W |
| Outputs | 1x HDMI 2.1b2x DisplayPort 2.1a | 1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2 |
| Power Connectors | 1x 8-pin | 2x 6-pin |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.2 | 1.2 |
| Vulkan | 1.3 | 1.2 |
| CUDA | 8.6 | |
| Shader Model | 6.8 | 5.1 |