Intel Iris Plus 640 vs NVIDIA GeForce GTX 660M

Compare Intel Iris Plus 640 0 GB vs NVIDIA GeForce GTX 660M 2 GB, specs and GPU benchmark score. Which is the better graphics card for the money?

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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

287 points

28% slightly better overall score

223 points

Flux Core frame rate

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

9 FPS

4 FPS significantly higher Flux Core frame rate

5 FPS

Electron frame rate

Randomly generated noise sphere test

4 FPS

1 FPS significantly higher Electron frame rate

3 FPS

City frame rate

Procedurally generated city scene with voxel rendering

7 FPS

3 FPS significantly higher City frame rate

3 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

2 FPS

0 FPS slightly higher Clouds frame rate

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Other Benchmarks

Geekbench 5 (Metal) score

Metal compute benchmark

6247 points

199% significantly higher Geekbench 5 (Metal) score

2083 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

6601 points

80% significantly higher Geekbench 5 (OpenCL) score

3649 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

6827 points

93% significantly higher Geekbench 5 (Vulkan) score

3524 points

Geekbench 6 (Metal) score

Metal compute benchmark

7862 points

253% significantly higher Geekbench 6 (Metal) score

2223 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

6639 points

66% significantly higher Geekbench 6 (OpenCL) score

3991 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

6920 points

96% significantly higher Geekbench 6 (Vulkan) score

3524 points

Specifications

Core Clock Speed

Nominal chip frequency

300 MHz

950 MHz

216% significantly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1100 MHz

15% slightly higher boost clock speed

950 MHz

Memory

Onboard memory size for textures and vertices

0.5 GiB

2 GiB

300% significantly more memory

TDP

Thermal Design Power: Measure of heat generated by the GPU

15 W

233% significantly lower TDP

50 W

Pixel Rate

Number of pixels that can be rendered per second

6.6 Gigapixels/s

7.6 Gigapixels/s

15% slightly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

52.8 Gigatexels/s

73% significantly higher texture rate

30.4 Gigatexels/s

Shading Units

Number of processors dedicated to shader processing

384

Identical

384

Texture Mapping Units

Number of processors dedicated to applying textures

49% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

166% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

384th of 586

412th of 586

Release date

The official date of release of this chip

2017 January

2012 March

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

11.2

OpenGL Support

Maximum version of OpenGL supported

4.4

4.5

Iris Plus 640 vs GeForce GTX 660M comparison

For gaming, the Iris Plus 640 graphics card is better than the GeForce GTX 660M in our tests.

Our database shows that the GeForce GTX 660M has a significantly higher core clock speed. This is the frequency at which the graphics core is running at. While not necessarily an indicator of overall performance, this metric can be useful when comparing two GPUs based on the same architecture. Despite this, the Iris Plus 640 has a slightly higher boost clock speed. The boost clock speed is the frequency that the GPU core can reach if the temperature is low enough. The allows for higher performance in certain scenarios.

As stated by the manufacturer, the GeForce GTX 660M has significantly more memory with 2 GiB of memory compared to 0.5 GiB. If you're planning at playing games at high resolutions with high-quality textures, you will need a lot of memory.

In addition, the Iris Plus 640 has a significantly lower TDP at 15 W when compared to the GeForce GTX 660M at 50 W. TDP (Thermal Design Power) measures total heat output from the chip.

In terms of raw gaming performance in our GPU benchmark, the Iris Plus 640 is better than the GeForce GTX 660M.