Product Compare
AMD Radeon Instinct MI455X vs NVIDIA GeForce GTX 680
| GPU | GPU | |
|---|---|---|
| Graphics Card | ||
| Release Date | Jul 2026 | Mar 2012 |
| Generation | Radeon Instinct | GeForce 600 |
| Type | Desktop | Desktop |
| Bus Interface | PCIe 6.0 x16 | PCIe 3.0 x16 |
| Clock Speeds | ||
| Base Clock | 1000 MHz | 1006 MHz |
| Boost Clock | 2400 MHz | 1058 MHz |
| Memory Clock | 1900 MHz | 1502 MHz |
| Memory | ||
| Memory Size | 432GB | 2GB |
| Memory Type | HBM4 | GDDR5 |
| Memory Bus | 24576bit | 256bit |
| Bandwidth | 23.3TB/s | 192.3GB/s |
| Render Config | ||
| Compute Units | 256 | |
| Shading Units | 32768 | 1536 |
| TMUs | 1024 | 128 |
| ROPs | 0 | 32 |
| L1 Cache | 32 KB (per CU) | 16 KB (per SMX) |
| L2 Cache | 192 MB | 512 KB |
| Theoretical Performance | ||
| Pixel Rate | 0 MPixel/s | 33.86 GPixel/s |
| Texture Rate | 2457.6 GTexel/s | 135.4 GTexel/s |
| FP16 (half) | 157.3 TFLOPS | |
| FP32 (float) | 157.3 TFLOPS | 3.250 TFLOPS |
| FP64 (double) | 2.458 TFLOPS | 135.4 GFLOPS |
| Graphics Processor | ||
| GPU Name | MI450 256CU | GK104 |
| Architecture | CDNA 5.0 | Kepler |
| Foundry | TSMC | TSMC |
| Process Size | 2 nm | 28 nm |
| Transistors | 320 billion | 3.54 billion |
| Die Size | Unknown | 294 mm² |
| GPU Variant | GK104-400-A2 | |
| Board Design | ||
| TDP | 2300W | 195W |
| Suggested PSU | 2700 W | 450 W |
| Outputs | No outputs | 2x DVI1x HDMI 1.4a1x DisplayPort 1.2 |
| Power Connectors | None | 2x 6-pin |
| Graphics Features | ||
| DirectX | N/A | 12 (11_0) |
| OpenGL | N/A | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | N/A | 1.2.175 |
| Shader Model | N/A | 6.5 (5.1) |
| CUDA | 3.0 | |