Intel Iris Plus 640 vs AMD Radeon RX 640

Compare Intel Iris Plus 640 0 GB 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

287 points

556 points

93% significantly better overall score

Flux Core frame rate

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

9 FPS

14 FPS

4 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

7 FPS

13 FPS

6 FPS significantly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

2 FPS

4 FPS

2 FPS significantly higher Clouds frame rate

Free GPU Benchmark

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Other Benchmarks

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

6601 points

15883 points

140% significantly higher Geekbench 5 (OpenCL) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

6827 points

15859 points

132% significantly higher Geekbench 5 (Vulkan) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

6639 points

14348 points

116% significantly higher Geekbench 6 (OpenCL) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

6920 points

16397 points

136% 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

1100 MHz

1287 MHz

17% slightly higher boost clock speed

Memory

Onboard memory size for textures and vertices

0.5 GiB

4 GiB

700% 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

20.6 Gigapixels/s

212% significantly higher pixel rate

Texture Rate

Number of textured pixels that can be rendered per second

52.8 Gigatexels/s

2% slightly higher texture rate

51.48 Gigatexels/s

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

383rd of 586

318th of 586

Family

The product line

Radeon 600 Series

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

OpenGL Support

Maximum version of OpenGL supported

4.4

4.6

Iris Plus 640 vs Radeon RX 640 benchmarks

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

The Radeon RX 640 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. In addition, the Radeon RX 640 also has a slightly higher boost clock speed: the maximum frequency the chip can reach if power delivery and thermals allow.

Furthermore, the spec sheet for both these GPUs show that the Radeon RX 640 has significantly more memory with 4 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 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 640.