Intel Iris Plus 640 vs NVIDIA GeForce GTX 660 Ti

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

1159 points

303% significantly better overall score

Flux Core frame rate

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

9 FPS

27 FPS

17 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

4 FPS

16 FPS

12 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

7 FPS

18 FPS

11 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

2 FPS

13 FPS

11 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (Metal) score

Metal compute benchmark

6247 points

6670 points

6% slightly higher Geekbench 5 (Metal) score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

6601 points

14647 points

121% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

6827 points

14555 points

113% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (Metal) score

Metal compute benchmark

7862 points

17% slightly higher Geekbench 6 (Metal) score

6670 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

6639 points

15295 points

130% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

6920 points

16140 points

133% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

300 MHz

915 MHz

205% significantly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1100 MHz

12% slightly higher boost clock speed

980 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

900% significantly lower TDP

150 W

Pixel Rate

Number of pixels that can be rendered per second

6.6 Gigapixels/s

27.44 Gigapixels/s

315% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

52.8 Gigatexels/s

109.8 Gigatexels/s

107% significantly higher texture rate

Shading Units

Number of processors dedicated to shader processing

384

1344

250% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

112

133% 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

382nd of 586

254th 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 Ti benchmarks

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

The GeForce GTX 660 Ti 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: the maximum frequency the chip can reach if power delivery and thermals allow.

As stated by the manufacturer, the GeForce GTX 660 Ti has significantly more memory with 3 GiB of memory compared to 0.5 GiB. Memory size doesn't directly affect performance, but too little memory will certainly degrade gaming performance.

In addition, the Iris Plus 640 has a significantly lower TDP at 15 W when compared to the GeForce GTX 660 Ti at 150 W. Heat output doesn't match power consumption directly but, it's a good estimate.

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