Intel Iris Plus 640 vs NVIDIA GeForce 840M

Compare Intel Iris Plus 640 0 GB vs NVIDIA GeForce 840M, specs and GPU benchmark score. Which is the better graphics card for the money?

Benchmark Score
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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

306 points

334 points

9% slightly better overall score

Flux Core frame rate

Volumetric ray casting test, a computationally expensive method of rendering high-quality scenes

10 FPS

2 FPS slightly higher Flux Core frame rate

8 FPS

Electron frame rate

Randomly generated noise sphere test

5 FPS

6 FPS

0 FPS slightly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

5 FPS

Identical

5 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

3 FPS

5 FPS

2 FPS significantly higher Clouds frame rate

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

6601 points

11% slightly higher Geekbench 5 (OpenCL) score

5938 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

6827 points

31% slightly higher Geekbench 5 (Vulkan) score

5207 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

6639 points

9% slightly higher Geekbench 6 (OpenCL) score

6089 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

6920 points

31% slightly higher Geekbench 6 (Vulkan) score

5261 points

Specifications

Core Clock Speed

Nominal chip frequency

300 MHz

1029 MHz

242% significantly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1100 MHz

1124 MHz

2% slightly higher boost clock speed

TDP

Thermal Design Power: Measure of heat generated by the GPU

15 W

120% significantly lower TDP

33 W

Pixel Rate

Number of pixels that can be rendered per second

6.6 Gigapixels/s

8.99 Gigapixels/s

36% slightly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

52.8 Gigatexels/s

193% significantly higher texture rate

17.98 Gigatexels/s

Shading Units

Number of processors dedicated to shader processing

384

Identical

384

Texture Mapping Units

Number of processors dedicated to applying textures

200% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

33% slightly more render output processors

Other details

Rank

Ranking in the hardwareDB database

379th of 592

369th of 592

Release date

The official date of release of this chip

2017 January

2014 March

Memory Type

The type of memory used by this chip

DDR3

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.4

4.6

Iris Plus 640 vs GeForce 840M benchmarks

In our benchmarks, the GeForce 840M beats the Iris Plus 640 in gaming performance.

Our database shows that the GeForce 840M has a significantly higher core clock speed. The core clock speed (or base speed) is the frequency at which the GPU core runs. This metric makes sense when comparing GPUs of a similar architecture or generation. In addition, the GeForce 840M also has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

In addition, the Iris Plus 640 has a significantly lower TDP at 15 W when compared to the GeForce 840M at 33 W. TDP (Thermal Design Power) measures total heat output from the chip.

According to the results of the hardwareDB benchmark utility, the GeForce 840M is faster than the Iris Plus 640.