NVIDIA GeForce GTX 680MX Mac Edition vs NVIDIA Quadro P620 Mobile
Graphics Processor
| GPU model | GK104 | GP107 |
|---|---|---|
| GPU variant | N13E-GTX2-A2 | — |
| Architecture | Kepler | Pascal |
| Foundry | TSMC | Samsung |
| Manufacturing process | 28 nm | 14 nm |
| Number of transistors | 3,540 million | 3,300 million |
| Die size | 294 mm² | 132 mm² |
Mobile graphics
| Release date | Oct 23rd, 2012 | Feb 1st, 2018 |
|---|---|---|
| Generation | GeForce 600M | Quadro Mobile (Px200) |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Predecessor | GeForce 500M | — |
| Successor | GeForce 700M | — |
Clocks
| GPU clock | 719 MHz | — |
|---|---|---|
| Memory clock | 1250 MHz 5 Gbps effective | 1502 MHz 6 Gbps effective |
| Base clock | — | 1177 MHz |
| Boost clock | — | 1443 MHz |
Memory Configuration
| Memory size | 2 GB | 4 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 256 bit | 128 bit |
| Bandwidth | 160.0 GB/s | 96.13 GB/s |
Render Configuration
| Shading units | 1536 | 512 |
|---|---|---|
| TMUs | 128 | 32 |
| ROPs | 32 | 16 |
| SMX count | 8 | — |
| Cache L1 | 16 KB (per SMX) | 48 KB (per SM) |
| Cache L2 | 512 KB | 1024 KB |
| SM count | — | 4 |
Performance
| Pixel rate | 23.01 GPixel/s | 23.09 GPixel/s |
|---|---|---|
| Texture rate | 92.03 GTexel/s | 46.18 GTexel/s |
| FP32 (float) performance | 2.209 TFLOPS | 1,478 GFLOPS |
| FP64 (double) performance | 92.03 GFLOPS (1:24) | 46.18 GFLOPS (1:32) |
| FP16 (half) performance | — | 23.09 GFLOPS (1:64) |
Dimensions & Outputs
| TDP | 122 W | 40 W |
|---|---|---|
| Outputs | No outputs | No outputs |
| Slot width | — | IGP |
| 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 | 6.1 |
| Shader model | 5.1 | 6.4 |
