Intel Iris Pro Graphics P6300 vs NVIDIA GeForce GT 645M
Graphics Processor
| GPU model | Broadwell GT3e | GK107 |
|---|---|---|
| Architecture | Generation 8.0 | Kepler |
| Foundry | Intel | TSMC |
| Manufacturing process | 14 nm | 28 nm |
| Number of transistors | unknown | 1,270 million |
| Die size | unknown | 118 mm² |
| GPU variant | — | N13P-GS |
Integrated Graphics
| Release date | Sep 5th, 2014 | — |
|---|---|---|
| Generation | HD Graphics-W (Broadwell) | — |
| Production | End-of-life | — |
| Interface | Ring Bus | — |
| Reviews | 1 in our database | — |
Clocks
| Base clock | 300 MHz | — |
|---|---|---|
| Boost clock | 800 MHz | — |
| Memory clock | System Shared | 900 MHz 1800 Mbps effective |
| GPU clock | — | 709 MHz |
Memory Configuration
| Memory size | System Shared | 2 GB |
|---|---|---|
| Memory type | System Shared | DDR3 |
| Memory bus width | System Shared | 128 bit |
| Bandwidth | System Dependent | 28.80 GB/s |
Render Configuration
| Shading units | 384 | 384 |
|---|---|---|
| TMUs | 48 | 32 |
| ROPs | 6 | 16 |
| Execution units | 48 | — |
| SMX count | — | 2 |
| Cache L1 | — | 16 KB (per SMX) |
| Cache L2 | — | 256 KB |
Performance
| Pixel rate | 4.800 GPixel/s | 5.672 GPixel/s |
|---|---|---|
| Texture rate | 38.40 GTexel/s | 22.69 GTexel/s |
| FP32 (float) performance | 614.4 GFLOPS | 544.5 GFLOPS |
| FP64 (double) performance | 153.6 GFLOPS (1:4) | 22.69 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | IGP | — |
|---|---|---|
| TDP | 15 W | 32 W |
| Outputs | No outputs | No outputs |
API Support & Features
| DirectX | 12 (11_1) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.0 | 1.1 |
| Shader model | 5.1 | 5.1 |
| CUDA | — | 3.0 |
Other Features
Mobile graphics
| Release date | — | Oct 1st, 2012 |
|---|---|---|
| Generation | — | GeForce 600M |
| Production | — | End-of-life |
| Interface | — | PCIe 3.0 x16 |
| Predecessor | — | GeForce 500M |
| Successor | — | GeForce 700M |
