NVIDIA GeForce GTX 780M Mac Edition vs NVIDIA GeForce MX450 30.5W 8Gbps
Graphics Processor
| GPU model | GK104 | TU117 |
|---|---|---|
| GPU variant | N14E-GTX-A2 | — |
| Architecture | Kepler | Turing |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 12 nm |
| Number of transistors | 3,540 million | 4,700 million |
| Die size | 294 mm² | 200 mm² |
Mobile graphics
| Release date | Nov 8th, 2013 | Aug 25th, 2020 |
|---|---|---|
| Generation | GeForce 700M | GeForce MX (4xx) |
| Production | End-of-life | Active |
| Interface | MXM-B (3.0) | PCIe 4.0 x4 |
| Predecessor | GeForce 600M | — |
| Successor | GeForce 800M | — |
Clocks
| Base clock | 771 MHz | 1035 MHz |
|---|---|---|
| Boost clock | 797 MHz | 1275 MHz |
| Memory clock | 1250 MHz 5 Gbps effective | 2000 MHz 8 Gbps effective |
Memory Configuration
| Memory size | 4 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 64 bit |
| Bandwidth | 160.0 GB/s | 64.00 GB/s |
Render Configuration
| Shading units | 1536 | 896 |
|---|---|---|
| TMUs | 128 | 56 |
| ROPs | 32 | 32 |
| SMX count | 8 | — |
| Cache L1 | 16 KB (per SMX) | 64 KB (per SM) |
| Cache L2 | 512 KB | 512 KB |
| SM count | — | 14 |
Performance
| Pixel rate | 25.50 GPixel/s | 40.80 GPixel/s |
|---|---|---|
| Texture rate | 102.0 GTexel/s | 71.40 GTexel/s |
| FP32 (float) performance | 2.448 TFLOPS | 2.285 TFLOPS |
| FP64 (double) performance | 102.0 GFLOPS (1:24) | 71.40 GFLOPS (1:32) |
| FP16 (half) performance | — | 4.570 TFLOPS (2:1) |
Dimensions & Outputs
| Slot width | MXM Module | — |
|---|---|---|
| TDP | 122 W | 31 W |
| Outputs | No outputs | No outputs |
| Power connectors | — | None |
API Support & Features
| DirectX | 12 (11_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.2 |
| CUDA | 3.0 | 7.5 |
| Shader model | 5.1 | 6.6 |
