Intel Iris Plus Graphics 645 vs NVIDIA GeForce GTX 285 Mac Edition
Graphics Processor
| GPU model | Coffee Lake GT3e | GT200B |
|---|---|---|
| Architecture | Generation 9.5 | Tesla 2.0 |
| Foundry | Intel | TSMC |
| Manufacturing process | 14 nm+++ | 55 nm |
| Number of transistors | unknown | 1,400 million |
| Die size | unknown | 470 mm² |
| GPU variant | — | G200-350-B3 |
Integrated Graphics
| Release date | Oct 7th, 2019 | — |
|---|---|---|
| Generation | HD Graphics-M (Coffee Lake) | — |
| Production | Active | — |
| Interface | Ring Bus | — |
| Reviews | 1 in our database | — |
Clocks
| Base clock | 300 MHz | — |
|---|---|---|
| Boost clock | 1050 MHz | — |
| Memory clock | System Shared | 1242 MHz 2.5 Gbps effective |
| GPU clock | — | 648 MHz |
| Shader clock | — | 1476 MHz |
Memory Configuration
| Memory size | System Shared | 1024 MB |
|---|---|---|
| Memory type | System Shared | GDDR3 |
| Memory bus width | System Shared | 512 bit |
| Bandwidth | System Dependent | 159.0 GB/s |
Render Configuration
| Shading units | 384 | 240 |
|---|---|---|
| TMUs | 48 | 80 |
| ROPs | 6 | 32 |
| Execution units | 48 | — |
| SM count | — | 30 |
| Cache L2 | — | 256 KB |
Performance
| Pixel rate | 6.300 GPixel/s | 20.74 GPixel/s |
|---|---|---|
| Texture rate | 50.40 GTexel/s | 51.84 GTexel/s |
| FP16 (half) performance | 1.613 TFLOPS (2:1) | — |
| FP32 (float) performance | 806.4 GFLOPS | 708.5 GFLOPS |
| FP64 (double) performance | 201.6 GFLOPS (1:4) | 88.56 GFLOPS (1:8) |
Dimensions & Outputs
| Slot width | IGP | Dual-slot |
|---|---|---|
| TDP | 15 W | 204 W |
| Outputs | No outputs | 2x DVI1x S-Video |
| Length | — | 267 mm 10.5 inches |
| Suggested PSU | — | 550 W |
| Power connectors | — | 2x 6-pin |
API Support & Features
| DirectX | 12 (12_1) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 4.6 | 3.3 |
| OpenCL | 3.0 | 1.1 |
| Vulkan | 1.2 | — |
| Shader model | 6.4 | 4.0 |
| CUDA | — | 1.3 |
Other Features
Graphics Card
| Release date | — | Jan 15th, 2009 |
|---|---|---|
| Generation | — | GeForce 200 |
| Production | — | End-of-life |
| Interface | — | PCIe 2.0 x16 |
| Reviews | — | 88 in our database |
| Predecessor | — | GeForce 9 |
| Successor | — | GeForce 400 |
