Intel Iris Plus Graphics G4 vs NVIDIA GeForce GT 645 OEM
Graphics Processor
| GPU model | Ice Lake GT1 | GF114 |
|---|---|---|
| Architecture | Generation 11.0 | Fermi 2.0 |
| Foundry | Intel | TSMC |
| Manufacturing process | 10 nm+ | 40 nm |
| Number of transistors | unknown | 1,950 million |
| Die size | unknown | 332 mm² |
Integrated Graphics
| Release date | May 29th, 2019 | — |
|---|---|---|
| Generation | HD Graphics-M (Ice Lake) | — |
| Production | Active | — |
| Interface | Ring Bus | — |
| Reviews | 1 in our database | — |
Clocks
| Base clock | 300 MHz | — |
|---|---|---|
| Boost clock | 1050 MHz | — |
| Memory clock | System Shared | 957 MHz 3.8 Gbps effective |
| GPU clock | — | 776 MHz |
| Shader clock | — | 1552 MHz |
Memory Configuration
| Memory size | System Shared | 1024 MB |
|---|---|---|
| Memory type | System Shared | GDDR5 |
| Memory bus width | System Shared | 192 bit |
| Bandwidth | System Dependent | 91.87 GB/s |
Render Configuration
| Shading units | 384 | 288 |
|---|---|---|
| TMUs | 24 | 48 |
| ROPs | 8 | 24 |
| Execution units | 48 | — |
| SM count | — | 6 |
| Cache L1 | — | 64 KB (per SM) |
| Cache L2 | — | 384 KB |
Performance
| Pixel rate | 8.400 GPixel/s | 9.312 GPixel/s |
|---|---|---|
| Texture rate | 25.20 GTexel/s | 37.25 GTexel/s |
| FP16 (half) performance | 1.613 TFLOPS (2:1) | — |
| FP32 (float) performance | 806.4 GFLOPS | 894.0 GFLOPS |
| FP64 (double) performance | 201.6 GFLOPS (1:4) | 74.50 GFLOPS (1:12) |
Dimensions & Outputs
| Slot width | IGP | Dual-slot |
|---|---|---|
| TDP | 15 W | 102 W |
| Outputs | No outputs | 2x DVI1x mini-HDMI |
| Length | — | 210 mm 8.3 inches |
| Suggested PSU | — | 300 W |
API Support & Features
| DirectX | 12 (12_1) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 1.1 |
| Vulkan | 1.2 | — |
| Shader model | 6.4 | 5.1 |
| CUDA | — | 2.1 |
Other Features
Graphics Card
| Release date | — | Apr 24th, 2012 |
|---|---|---|
| Generation | — | GeForce 600 |
| Production | — | End-of-life |
| Interface | — | PCIe 2.0 x16 |
| Predecessor | — | GeForce 500 |
| Successor | — | GeForce 700 |
