Intel Iris Plus 640 vs NVIDIA GeForce GTX 660

Compare Intel Iris Plus 640 0 GB vs NVIDIA GeForce GTX 660 3 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

816 points

184% significantly better overall score

Flux Core frame rate

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

9 FPS

18 FPS

9 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

4 FPS

11 FPS

7 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

7 FPS

13 FPS

6 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

2 FPS

9 FPS

7 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (Metal) score

Metal compute benchmark

6247 points

14% slightly higher Geekbench 5 (Metal) score

5449 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

6601 points

11381 points

72% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

6827 points

10693 points

56% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (Metal) score

Metal compute benchmark

7862 points

82% significantly higher Geekbench 6 (Metal) score

4311 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

6639 points

11353 points

71% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

6920 points

11858 points

71% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

300 MHz

980 MHz

226% significantly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1100 MHz

6% slightly higher boost clock speed

1032 MHz

Memory

Onboard memory size for textures and vertices

0.5 GiB

3 GiB

499% significantly more memory

TDP

Thermal Design Power: Measure of heat generated by the GPU

15 W

833% significantly lower TDP

140 W

Pixel Rate

Number of pixels that can be rendered per second

6.6 Gigapixels/s

20.64 Gigapixels/s

212% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

52.8 Gigatexels/s

82.56 Gigatexels/s

56% significantly higher texture rate

Shading Units

Number of processors dedicated to shader processing

384

960

150% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

66% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

300% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

383rd of 586

276th of 586

Release date

The official date of release of this chip

2017 January

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

11.0

OpenGL Support

Maximum version of OpenGL supported

4.4

4.5

Iris Plus 640 vs GeForce GTX 660 comparison

According to the hardwareDB Benchmark, the GeForce GTX 660 GPU is faster than the Iris Plus 640 in gaming.

In our comparison, the GeForce GTX 660 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. Despite this, the Iris Plus 640 has a slightly higher boost clock speed. This is a frequency that can be reached if the GPU is cooled sufficiently and has enough power.

Furthermore, the spec sheet for both these GPUs show that the GeForce GTX 660 has significantly more memory with 3 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 660 at 140 W. TDP (Thermal Design Power) measures total heat output from the chip.

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