Intel Core i5-8250U 8th Gen Quad-Core Processor for Laptops (Review)

The 8th Generation Intel Core i5-8250U is one of the first quad-core processors in the mainstream Core U lineup. It’s an important chip on the market since upgrade from the previous dual-core U-series processors to quad-core is a big leap. That’s visible in the i5-8250U benchmark results.

Intel Core i5-8250U CPU Benchmark

Intel Core i5-8250U 8th Gen Benchmark

Extra performance over its 7th Gen i5-7200U dual-core counterpart while retaining low (15-Watt) power consumption and low heat is a great achievement. The Intel Core i5-8250U will be therefore a great choice for those who want fast laptop computing without sacrificing portability or battery life. The User Benchmark CPU test also shows the i5-8250U is close performance-wise to the power-hungry 45-Watt quad-core i5 and i7 HQ series. However, it’s worth noting that software applications running on a single computing thread won’t benefit from the chip’s four-core (and eight-thread) design.

Our Everyday-Use Test of the i5-8250U

In our real-world tests, the i5-8250U proved its amazing performance for day-to-day use. We tested the i5-8250U in an HP 470 G5 laptop with 16GB of dual-channel RAM and a solid state drive. We put the CPU through some common everyday-use application tests, like web browsing, work in Microsoft Office applications, and multimedia playback. The i5-8250U had no problems with crunching these tasks and the CPU utilization was quite low. These aren’t too demanding tasks. They can be easily handled by the previous dual-core i5-7200U, too. So, the difference between the two chips wasn’t noticeable during these activities. However, when we stressed the CPUs a bit heavier, the i5-8250U showed its greater potential. For instance, a minute and a half long video was exported from Microsoft’s Movie Maker to a 1080p video file in 42 seconds on the laptop with the i5-8250U. The same tasks took 55 seconds on the i5-7200U-equipped notebook. The advantage of the 8th Gen chip was also somewhat visible when applying filters on large jpeg picture files.

As for 4K video playback on the i5-8250U, it’s completely smooth. Playing various 4K Ultra HD video samples including 60fps ones in popular video apps consumed only up to 3% of the processor capacity. Playing random 4K YouTube videos in Chrome browser consumed up to 5% of the CPU power. Of course, playing 1080p Full HD and lower-resolution videos was a piece of cake.

The processor’s operating temperatures on the tested laptop were quite low. Under normal workload with a couple of browser tabs, MS Word, and MP3 player running at the same time, average CPU temperature was around 40 degrees Celsius. The laptop was only mildly warm on the bottom of the chassis. Under full 100% CPU load while exporting a video from Movie Maker, the average temperature rose to around 70 C. The laptop got warmer on the bottom, which is normal, but still it wasn’t hot. Please keep in mind that CPU temperatures greatly depend on CPU cooling of each laptop model, so temps on them may be different than those presented here.

Gaming on the i5-8250U

What hasn’t been upgraded on the 8th Generation of the i5 U-series chips is integrated graphics. The CPU still uses the basic Intel 620 series from the previous 7th Gen Core CPUs, with a very minor clock speed speed boost and new “UHD 620” name. However, greater power of the processor itself can help in certain CPU-intensive gaming scenarios. Take a look at our Intel UHD 620 review or this gameplay video playlist:

Specifications of the Intel Core i5-8250U

Here's the specs sheet of the Intel Core i5-8250U:

Processor Name

Intel Core i5-8250U

CPU Family

8th Generation Intel Core "Kaby Lake R"

Number of Cores

Quad-core / 2 threads per core

CPU Clock Speed

1.6 GHz – 3.4 GHz

Cache Size


Memory Support

DDR3 2133MHz
DDR4 2400MHz

Integrated Graphics

Intel UHD 620

Power Consumption


Production Technology


Typical Use

Mainstream Laptops & 2-in-1 PCs


Intel HyperThreading
Intel QuickSync
Intel TurboBoost
VT-d Virtualization
VT-x Virtualization

User Benchmark Average CPU Score



Written by on October 10, 2017

User reviews, comments, and Q&A on the Intel Core i5-8250U

Below you can read and submit user reviews, comments, questions, and answers regarding the processor. Thank you for your contribution.


4.00 out of 5
(1 user review)

  1. M E

    Can I edit panasonic 4k video which I took by using Panasonic software?
    I want to get a 4k photo from a 4k video.

  2. tom

    Do you have Cinebench of the processor? I want to compare it to my old laptop. Thanks.

    • Danijel Z

      Danijel Z

      Hi, 499 cb multi-core, 139 cb single-core, 50,64 fps Open GL.
      Intel Core i5-8250U Cinebench R15 Benchmark

      • tom

        Thank you!

  3. Danijel Z
    Rated 4 out of 5

    Danijel Z

    Based on the benchmark and real-world tests presented on this page, I’ll give the i5-8250U 4 out of 5 stars. The CPU itself deserves 5 stars because of great improvement over the previous-gen i5 counterpart and overall great performance without producing excessive heat. But, its integrated graphics hasn’t been meaningfully upgraded. That’s why the i5-8250U received a star less.

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