NVIDIA GeForce GTX 1080 Max-Q vs NVIDIA GeForce GTX 680MX Mac Edition
Graphics Processor
| GPU model | GP104 | GK104 |
|---|---|---|
| GPU variant | N17E-G3-A1 | N13E-GTX2-A2 |
| Architecture | Pascal | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 16 nm | 28 nm |
| Number of transistors | 7,200 million | 3,540 million |
| Die size | 314 mm² | 294 mm² |
Mobile graphics
| Release date | Jun 27th, 2017 | Oct 23rd, 2012 |
|---|---|---|
| Generation | GeForce 10 Mobile | GeForce 600M |
| Production | Active | End-of-life |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
| Reviews | 183 in our database | — |
| Predecessor | — | GeForce 500M |
| Successor | — | GeForce 700M |
Clocks
| Base clock | 1290 MHz | — |
|---|---|---|
| Boost clock | 1468 MHz | — |
| Memory clock | 1251 MHz 10008 MHz effective | 1250 MHz 5 Gbps effective |
| GPU clock | — | 719 MHz |
Memory Configuration
| Memory size | 8 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5X | GDDR5 |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 320.3 GB/s | 160.0 GB/s |
Render Configuration
| Shading units | 2560 | 1536 |
|---|---|---|
| TMUs | 160 | 128 |
| ROPs | 64 | 32 |
| SM count | 20 | — |
| Cache L1 | 48 KB (per SM) | 16 KB (per SMX) |
| Cache L2 | 2 MB | 512 KB |
| SMX count | — | 8 |
Performance
| Pixel rate | 93.95 GPixel/s | 23.01 GPixel/s |
|---|---|---|
| Texture rate | 234.9 GTexel/s | 92.03 GTexel/s |
| FP16 (half) performance | 117.4 GFLOPS (1:64) | — |
| FP32 (float) performance | 7.516 TFLOPS | 2.209 TFLOPS |
| FP64 (double) performance | 234.9 GFLOPS (1:32) | 92.03 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | MXM Module | — |
|---|---|---|
| TDP | 150 W | 122 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | — |
| Board number | E2915 SKU 10 | — |
API Support & Features
| DirectX | 12 (12_1) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | 1.2.131 | 1.1 |
| CUDA | 6.1 | 3.0 |
| Shader model | 6.4 | 5.1 |
