Intel Iris Plus 645

Intel Iris Plus 645 Benchmark

Intel Iris Plus 645 GPU benchmark, specs and release date - Intel Graphics card rating. How good is the Iris Plus 645 for gaming?

GPU Benchmark Score

9 %
Bad score from 1 sample
High uncertainty

Ranked 266th out of 526 in the GPU Database. Tests performed at 1920 x 1080 resolution.

Benchmark Average 10% Low 1% Low
Flux Core
Volumetric ray casting test, a computationally expensive method of rendering high-quality scenes
10 FPS 7 FPS 7 FPS
Randomly generated noise sphere test
Procedurally generated city scene with voxel rendering
Real-time noise calculation and ray marching test

Want to compare your GPU against the Iris Plus 645 and these results? Download our free and quick PC Performance Test.

Geekbench (Metal)
Geekbench (Metal)
Geekbench (OpenCL)
Geekbench (OpenCL)
Geekbench (Vulkan)
Geekbench (Vulkan)
6,765 7,638 7,672

Compare these benchmarks and specs using our GPU Comparison Tool.

GPU Comparison

The Intel Iris Plus 645 compared against popular alternatives. Compare against more GPUs with our GPU Comparison Tool.

NVIDIA GeForce RTX 3070
116 %
AMD Radeon
12 %
Intel Iris 650
9 %
Intel Iris Plus 645
9 %
NVIDIA Quadro M1000M
9 %
Intel UHD 750
8 %
AMD Radeon R9 M360
3 %


Core Clock 300 MHz
Boost Clock 1050 MHz
TDP 15 W
Release Date 2019-10-07
DirectX Support 12
OpenGL Support 4.6
Pixel Rate 6 Gigapixels/s
Texture Rate 50 Gigatexels/s
Shading Units 384
Texture Mapping Units 48
Render Output Processors 6

Intel Iris Plus 645

The Iris Plus 645 is a GPU from Intel released in 2019. This chip has a bad gaming score at 9% in our GPU benchmark.

In terms of clock speed, the Iris Plus 645 GPU core runs at a frequency of 300 MHz and if power and temperature permits, it can boost up to 1050 MHz. The core clock is directly related to the performance of a GPU, the higher the clock, the more processing can be done per second. A higher clock does not guarantee better performance by itself, this also depends on the number of shading units and other elements of the pipeline.

The performance specs of the Iris Plus 645 are this Intel GPU has a pixel rate of 6 Gigapixels/s, the number of pixels the GPU is capable of outputting every second. Furthermore, it has a texture fill rate of 50 Gigatexels/s, the number of pixels the GPU can renderer per second.

As for rendering API support, the Iris Plus 645 supports up to DirectX 12. In addition, in cross-platform titles, OpenGL 4.6 features are supported. Newer APIs are usually more efficient, allowing for better performance in games and better graphical effects.

The raw technical specs of the Iris Plus 645 are: 384 total shading units (general purpose parallel cores capable of processing different aspects of the graphics pipeline), 48 texture mapping units (specialised processors for texture operations, this determines the texture rate) and 6 render output processors or units (the final step in the rendering pipeline, responsible for rasterising the image)

Power and thermals for the Intel Iris Plus 645 are a TDP (Thermal Design Power) of 15 watts. This measures the amount of heat the GPU produces when running at 100%. This isn't a measure of power consumption, but it's a good estimate.

To figure out your graphics card specs and performance, download our free GPU Benchmark utility.


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