Product Compare
NVIDIA GeForce RTX 4080 Max-Q vs AMD Radeon HD 7990
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jan 2023 | Apr 2013 |
| Generation | GeForce 40 Mobile | Southern Islands |
| Type | Mobile | Desktop |
| Bus Interface | PCIe 4.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 795 MHz | 950 MHz |
| Boost Clock | 1350 MHz | 1000 MHz |
| Memory Clock | 1750 MHz | 1500 MHz |
| Memory | ||
| Memory Size | 12GB | 3GB |
| Memory Type | GDDR6 | GDDR5 |
| Memory Bus | 192bit | 384bit |
| Bandwidth | 336.0GB/s | 288.0GB/s |
| Render Config | ||
| SM Count | 58 | |
| Shading Units | 7424 | 2048 |
| TMUs | 232 | 128 |
| ROPs | 80 | 32 |
| Tensor Cores | 232 | |
| RT Cores | 58 | |
| L1 Cache | 128 KB (per SM) | 16 KB (per CU) |
| L2 Cache | 48 MB | 768 KB |
| Compute Units | 32 | |
| Theoretical Performance | ||
| Pixel Rate | 108.0 GPixel/s | 32.00 GPixel/s |
| Texture Rate | 313.2 GTexel/s | 128.0 GTexel/s |
| FP16 (half) | 20.04 TFLOPS | |
| FP32 (float) | 20.04 TFLOPS | 4.096 TFLOPS |
| FP64 (double) | 313.2 GFLOPS | 1024 GFLOPS |
| Graphics Processor | ||
| GPU Name | AD104 | Malta |
| GPU Variant | GN21-X9 | Malta XT(215-0849026) |
| Architecture | Ada Lovelace | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Process Size | 4 nm | 28 nm |
| Transistors | 35.8 billion | 4.313 billion |
| Die Size | 295 mm² | 365 mm² |
| Board Design | ||
| TDP | 60W | 375W |
| Outputs | Portable Device Dependent | 1x DVI4x mini-DisplayPort 1.2 |
| Power Connectors | None | 2x 8-pin |
| Suggested PSU | 750 W | |
| Graphics Features | ||
| DirectX | 12 Ultimate (12_2) | 12 (11_1) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 1.2 |
| Vulkan | 1.3 | 1.2 |
| CUDA | 8.9 | |
| Shader Model | 6.7 | 5.1 |