Product Compare
AMD Radeon HD 7990 vs NVIDIA GeForce GTX 650 Ti Boost
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Apr 2013 | Mar 2013 |
| Generation | Southern Islands | GeForce 600 |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 950 MHz | 980 MHz |
| Boost Clock | 1000 MHz | 1032 MHz |
| Memory Clock | 1500 MHz | 1502 MHz |
| Memory | ||
| Memory Size | 3GB | 2GB |
| Memory Type | GDDR5 | GDDR5 |
| Memory Bus | 384bit | 192bit |
| Bandwidth | 288.0GB/s | 144.2GB/s |
| Render Config | ||
| Compute Units | 32 | |
| Shading Units | 2048 | 768 |
| TMUs | 128 | 64 |
| ROPs | 32 | 24 |
| L1 Cache | 16 KB (per CU) | 16 KB (per SMX) |
| L2 Cache | 768 KB | 384 KB |
| Theoretical Performance | ||
| Pixel Rate | 32.00 GPixel/s | 16.51 GPixel/s |
| Texture Rate | 128.0 GTexel/s | 66.05 GTexel/s |
| FP32 (float) | 4.096 TFLOPS | 1.585 TFLOPS |
| FP64 (double) | 1024 GFLOPS | 66.05 GFLOPS |
| Graphics Processor | ||
| GPU Name | Malta | GK106 |
| GPU Variant | Malta XT(215-0849026) | GK106-240-A1 |
| Architecture | GCN 1.0 | Kepler |
| Foundry | TSMC | TSMC |
| Process Size | 28 nm | 28 nm |
| Transistors | 4.313 billion | 2.54 billion |
| Die Size | 365 mm² | 221 mm² |
| Board Design | ||
| TDP | 375W | 134W |
| Suggested PSU | 750 W | 300 W |
| Outputs | 1x DVI4x mini-DisplayPort 1.2 | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | 2x 8-pin | 1x 6-pin |
| Graphics Features | ||
| DirectX | 12 (11_1) | 12 (11_0) |
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader Model | 5.1 | 5.1 |
| CUDA | 3.0 | |