Intel Iris 5100 vs NVIDIA GeForce GTX 660

Compare Intel Iris 5100 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

158 points

816 points

416% significantly better overall score

Flux Core frame rate

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

4 FPS

18 FPS

14 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

3 FPS

11 FPS

8 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

3 FPS

13 FPS

10 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

1 FPS

9 FPS

8 FPS significantly higher Clouds frame rate

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

4150 points

11381 points

174% significantly higher Geekbench 5 (OpenCL) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

3969 points

11353 points

186% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

3330 points

11858 points

256% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

200 MHz

980 MHz

389% 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

TDP

Thermal Design Power: Measure of heat generated by the GPU

30 W

366% significantly lower TDP

140 W

Pixel Rate

Number of pixels that can be rendered per second

4.4 Gigapixels/s

20.64 Gigapixels/s

369% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

44 Gigatexels/s

82.56 Gigatexels/s

87% significantly higher texture rate

Shading Units

Number of processors dedicated to shader processing

320

960

200% significantly more shading units

Texture Mapping Units

Number of processors dedicated to applying textures

100% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

499% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

466th of 586

276th of 586

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

4.3

4.5

Iris 5100 vs GeForce GTX 660 specs and performance

In our benchmarks, the GeForce GTX 660 beats the Iris 5100 in gaming performance.

In our comparison, the GeForce GTX 660 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 5100 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.

In addition, the Iris 5100 has a significantly lower TDP at 30 W when compared to the GeForce GTX 660 at 140 W. Heat output doesn't match power consumption directly but, it's a good estimate.

In conclusion, all specs and GPU benchmarks considered, will recommend the GeForce GTX 660 over the Iris 5100.