Intel Iris Plus 640 vs NVIDIA GeForce 840M

GPU Comparison

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Benchmark Score

Overall Score

General gaming and workstation score

306 points
315 points
2% slightly better overall score

Flux Core frame rate

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

10 FPS
1 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

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

6601 points
11% slightly higher Geekbench 5 (OpenCL) score
5938 points
Geekbench 5 (Vulkan) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

6827 points
31% slightly higher Geekbench 5 (Vulkan) score
5207 points
Geekbench 6 (OpenCL) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

6639 points
9% slightly higher Geekbench 6 (OpenCL) score
6089 points
Geekbench 6 (Vulkan) score

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

48
200% significantly more texture mapping units
16

Render Output Processors

Number of processors dedicated to final pixel rendering

6
8
33% slightly more render output processors

Other details

Rank

Ranking in the hardwareDB database

378th of 587
373rd of 587

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
12.0

OpenGL Support

Maximum version of OpenGL supported

4.4
4.6

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