Intel Iris Plus 655 vs AMD Radeon RX 640

Compare Intel Iris Plus 655 vs AMD Radeon RX 640 4 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

278 points

556 points

100% significantly better overall score

Flux Core frame rate

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

7 FPS

14 FPS

6 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

4 FPS

9 FPS

5 FPS significantly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

5 FPS

13 FPS

8 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

2 FPS

4 FPS

1 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

7413 points

15883 points

114% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

8124 points

15859 points

95% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

7380 points

14348 points

94% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

8354 points

16397 points

96% significantly higher Geekbench 6 (Vulkan) score

Specifications

Core Clock Speed

Nominal chip frequency

300 MHz

1082 MHz

260% significantly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1050 MHz

1287 MHz

22% slightly higher boost clock speed

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

6.3 Gigapixels/s

20.6 Gigapixels/s

226% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

50.4 Gigatexels/s

51.48 Gigatexels/s

2% slightly higher texture rate

Texture Mapping Units

Number of processors dedicated to applying textures

20% slightly 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

390th of 586

318th of 586

Family

The product line

Radeon 600 Series

Release date

The official date of release of this chip

2018 April

Memory Type

The type of memory used by this chip

GDDR5

DirectX Support

Maximum version of DirectX supported

12.0

OpenGL Support

Maximum version of OpenGL supported

4.6

Iris Plus 655 vs Radeon RX 640 specs and performance

In our benchmarks, the Radeon RX 640 beats the Iris Plus 655 in gaming performance.

Our database shows that the Radeon RX 640 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. In addition, the Radeon RX 640 also 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 Plus 655 has a significantly lower TDP at 15 W when compared to the Radeon RX 640 at 50 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.

In terms of raw gaming performance in our GPU benchmark, the Radeon RX 640 is better than the Iris Plus 655.