Ryzen Mobile vs Intel 8th Gen Core: AMD Levels the Playing Field

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For the past several years, AMD has been an also-ran in the mobile-processor space. Though the company's APUs (AMD's name for CPUs) have powered many laptops, the chips have been limited to budget-minded, low-performance systems. However, with its new Ryzen Mobile chips, the company is finally taking the performance fight to Intel. AMD's quad-core Ryzen 5 and Ryzen 7 processors are designed to beat Intel's 8th Gen Core i5 and Core i7 CPUs while coming in at around the same price or possibly less.

ryzen lead

To see which processors reign supreme, we got ahold of two nearly identical HP Envy x360 2-in-1s — one with Ryzen 5 and one with Intel Core i5 — and put them through our own set of tests. Overall, the Ryzen Mobile-powered laptop impressed us by getting much-higher graphics scores than its competitor. We're talking about three to four times faster.

Intel's chip scored a little higher on a couple of tests that didn't require much graphics might, but the overall takeaway is that AMD's mobile processors are now as good if not better than Intel's. And that's a big deal.

Our Test Systems

It's rare to find two units of the same laptop model with different CPU brands, and when you do, they won't necessarily have matching specs. For our tests, we used HP Envy x360 laptops with 15.6-inch, 1080p displays and 1TB hard drives. The Core i5-8250U-powered model had 12GB of RAM, while the Ryzen 5-enabled unit had just 8GB of memory. But because none of our benchmarks used more than 8GB, we think that this difference probably was not influential. At press time, the Intel-powered Envy x360 was selling for $849, while its AMD-toting sibling went for $749.

HP Envy x360

Processor Overview

Both AMD Ryzen and Intel 8th Gen Core processors have four cores, which give you eight simultaneous threads. Both platforms have integrated graphics, but owing to AMD's rich history in the graphics-card market, that company's Radeon Vega GPU is quite a bit faster than Intel's UHD 620 graphics. Both processors have a standard TDP (thermal design profile) of 15 watts, though AMD says that if manufacturers use enough cooling, they can raise the TDP up as high as 25 watts.

  AMD Ryzen 5 2500U Intel Core i5-8250U
Base Clock Speed 2 GHz 1.6 GHz
Turbo Clock Speed 3.6 GHz 3.4 GHz
TDP 15 watts 15 watts
Cores 4 4
Threads 8 8
Graphics Radeon Vega Intel UHD 620

Just as Intel names its midrange and high-end processors Core i5 and Core i7, AMD labels its chips as Ryzen 5 and Ryzen 7. The Core i5-8250U CPU we tested has a base speed of 1.6 GHz, with the ability to turbo up to 3.4 GHz, while the Ryzen 5 2500U chip goes from 2 to 3.6 GHz.

Processing Tests

In pure processing performance, the two CPUs were neck and neck, with each one winning on different tests. On Geekbench 4, a synthetic test that measures overall performance, the Core i5 returned a mark of 12,485, compared to the Ryzen 5's score of 9,810.

Geekbench 4

We also ran Cinebench R15, another synthetic test, which measures overall performance by rendering a 3D scene. The AMD chip scored 609, besting the Intel processor's mark of 538.

Cinebench R15

On our Excel test, which matches 65,000 names with their addresses, the AMD chip finished in 1 minute and 20 seconds, while the Intel model completed the same task in 1:25.

Excel macro test

When opening apps, a process that also involves the RAM and hard drive, the Intel-powered Envy x360 was a tiny bit quicker, launching Firefox, Chrome and GIMP in 0.6, 0.5 and 2.4 seconds, while the Ryzen 5 laptop did the same things in 1, 0.7 and 3.3 seconds.

Video Transcoding

The Ryzen chip really shined in video transcoding. It took the Ryzen 5 laptop just 17 minutes and 48 seconds to shrink a 4K video to 1080p using the HandBrake application. The Core i5 model took 20 minutes and 4 seconds to perform the same task.


Graphics Tests

Thanks to its Radeon Vega GPU, Ryzen Mobile is noticeably superior on any task that involves graphics. However, even with higher scores, a Ryzen Mobile chip by itself will not make an ordinary notebook into a gaming rig. If you want to play demanding titles, you'll still need a laptop with discrete graphics, no matter what brand of CPU you have.

When we played the low-end racing game Dirt 3, the Intel-powered Envy x360 managed a mediocre rate of 27.9 frames per second (fps), which is slightly below our 30-fps threshold for playability. The model with Ryzen 5 was over three times faster, returning a rate of 90.7 fps.


Dirt 3

The Ryzen 5 chip was also three times as fast as the Core i5 processor when we played the more-intensive Rise of the Tomb Raider game, providing 15 fps to the Intel chip's 5.7 fps. But neither rate is even close to playable.

Rise of the Tomb Raider

AMD's chip maintained its dominance on synthetic graphics tests, scoring nearly twice as much (912 versus 512) on FurMark, a benchmark that renders animal hair. On 3DMark Ice Storm Unlimited, Ryzen 5 scored a strong 73,701, edging out the Core i5 processor's score of 62,127.

3DMark Ice Storm Unlimited


Some AMD-powered laptops that we tested in the past had heat issues, but thankfully, the Envy x360 with Ryzen 5 stayed cool throughout our tests. After the machine streamed a video for 15 minutes, the touchpad measured 73 degrees Fahrenheit, the keyboard hit 77.5 degrees, and the underside rose to only 88 degrees Fahrenheit. All of those marks were well below our 95-degree comfort threshold.

The Core i5 model was just as cool, registering temperatures of 75, 80.5 and 80.5, respectively.

Battery Life

From our tests, it appears that Ryzen 5 and Intel Core i5 provide the same amount of battery life. When we put both Envy x360 laptops through our battery test, which involves continuous surfing over Wi-Fi, the Ryzen-powered system lasted 5 hours and 11 minutes. The Core i5 model tapped out after 5 hours and 17 minutes.

Battery Life

Now, it's important to remember that the CPU is just one component of many in a computer. On most laptops, the screen and the battery capacity will have at least as much influence on battery life as the processor does. In this case, we had two nearly identical systems, but many shoppers will be deciding from among radically different configurations of the same laptop or different models altogether.

Bottom Line

Ryzen Mobile instantly makes AMD a serious player in the mainstream laptop space. In most use cases, a Ryzen Mobile chip is either a little faster or within striking range of the Intel 8th Gen Core. In fact, the only test that was a strong win for Intel was Geekbench 4; a few milliseconds of time in app-opens and 6 minutes of battery life are well within the margin of error. AMD's processor also offers significantly better integrated graphics, even though the graphics performance is not strong enough to turn a regular ultrabook into a gaming rig.

Given the choice between a laptop with Ryzen Mobile and another with Intel's 8th Gen Core (aka, Kaby Lake Refresh), we'd choose whichever machine is the better value at the time you're shopping. At press time, the Envy x360 with Ryzen 5 was $100 less than the unit with Intel inside. The difference in performance between these chips is really small for most users, and for AMD, that's a huge win.

  AMD Ryzen 5 2500U Intel Core i5-8250U
Geekbench 4 9810 12485
Handbrake (minutes) 17:48 20:04
Cinebench R15 609 538
3DMark Ice Storm Unlimited 73701 62127
Dirt 3 (fps) 90.7 27.9
Rise of the Tomb Raider (fps) 15 5.7
Excel macro test (minutes) 1:20 1:25
Firefox App Open (seconds) 1 0.6
Chrome App Open (seconds) 0.7 0.5
GIMP App Open (seconds) 3.3 2.4
Battery Life (hours) 5:11 5:17

Laptop Guide

Author Bio
Avram Piltch
Avram Piltch, LAPTOP Online Editorial Director
The official Geeks Geek, as his weekly column is titled, Avram Piltch has guided the editorial and production of Laptopmag.com since 2007. With his technical knowledge and passion for testing, Avram programmed several of LAPTOP's real-world benchmarks, including the LAPTOP Battery Test. He holds a master’s degree in English from NYU.
Avram Piltch, LAPTOP Online Editorial Director on
Add a comment
  • Murray B Says:

    An AMD APU (Accelerated Processing Unit) combines a CPU and GPU in a single device. They usually contain one or more AMD CPU cores and several AMD (formerly ATI) Radeon cores. Competing Intel units with HD graphics use EU (Execution Units) which are tied to the CPU and usually apply a significant load the CPU when performing graphics functions. When software places significant demands on both the CPU and GPU at the same time that CPU loading can reduce performance below what would be expected from benchmark results. It is better to test performance by actually running the desired software than trying to guess what it will be using test results from sponsored benchmarks.

  • Faisal Says:

    At least mention model numbers exactly.... there are like 10-20 versions of a model with ridiculously small change in specs that lead to either make or break a decision.

  • mb_laptopreview Says:

    lenovo has exact builds for their flex 6 laptops with the processor being the only difference. You could put them to test to run a true comparison

  • Pleiades Says:

    @ Astar: The above review says that both machines used 1TB HDDs. And it seems they prefer the AMD anyway, so not sure what you're complaining about... :-/

  • astar Says:

    Ridiculously unfair! The Intel has 12GB RAM compared to the AMD's 8GB. Even if the benchmarking software does not use 8GB, the Windows OS and other software still take up RAM.

    Furthermore, the AMD is hampered by a crippling 1TB MECHANICAL HARDDISK! Who the hell ever uses that kind of stuff anymore? Everybody buys laptops with SSDs. Other reviewers have recommended AGAINST buying the configuration with mechanical harddisks.

    Why can't you and other reviewers request for and test the AMD version with SSD configurations? Yet another Intel lackey!

  • Registered User Says:

    @Cemal Nadji

    Get your facts right! Ryzen runs cooler and needs similar or even less power than comparable Intel CPUs.

    Ryzen is based on the Zen architecture. An architecture developed from scratch. It hasn't anything to do anymore with previous CPU generations from AMD. Which weren't that bad as you might think. But AMD slowed down their development years ago and finally stopped it to concentrate on the development of Zen. Previous CPU generations from AMD also had a significant process node disadvantage. Except some special cases, e.g. 256-bit FMA, Zen can compete with and sometimes even beat current Intel offerings in terms of performance, power efficiency and area efficiency.

    An Intel CPU with a dGPU is not going to always win hands down. With Ryzen the differences are negligible. But that's irrelevant. We are talking about APUs. In the past AMD's APUs had a significant disadvantage in CPU performance but a significant advantage in iGPU performance. Most people prefer CPU performance over iGPU performance. That's why AMD's APUs still were considered as an inferior solution compared to Intel's APUs. Ryzen Mobile changed that. Its CPU performance is more than comparable to Intel. But its iGPU performance seems to be even more superior than previous generations. AMD has a clear winner on their hands! And I hope we see it in a lot devices. I'm looking for a new notebook.

    And what means it's always a problem for AMD to have hotter and more power hungry products? Did you forget the Pentium 4? AMD offered the Athlon 64 during that era. Which was faster, cooler and less power hungry. Or what about Intel's dGPU project, Larrabee? It never was launched because it was too power hungry and inefficient. Or what about Haswell? Which could get extremely hot. Or what about Skylake-X? It's heat and power consumption reaches absurd levels. It's not only AMD. Intel faces the same problems.

    By the way, I don't see any glitches on my Ryzen desktop system. Don't try to make up things. ;-)

  • Nate Fitzer Says:

    Amd Ryzen works flawlessly and beats out Intel on the desktop, now that it's on mobile it's doing the same. Intel knows they are losing that's why they just made a deal with AMD to put the AMD GPU into Intel laptops.

  • Jeffrey Hramika Says:

    Notebook Check are very bias towards AMD. Great review I own this Notebook got it @ Best Buy for $600. Throw a M.2 inside and it is even better.

  • Cemal Nadji Says:

    Look, it was the same scenario with AMD's FM2+ APU's in that the integrated GPU was far superior to intels HD Graphics solution. Now, an intel CPU with a dedicated graphics solution is going to always win hands down, as usual, the Ryzen APU? (didn't know they had one yet) is better for games but i can assure you it will run a lot hotter and consume more power, always a problem for AMD products and their struggle to rival intel. If you want to play games get a desktop PC, if you want close to intel 8th gen performance get a Ryzen but expect glitches along the way as things are generally optimized for intel products.

  • Daniel Says:

    Hey, thanks for the review. At notebookcheck the reviewed a Lenovo Ideapad 320 with the new Ryzen. Turns out, they were not happy with it. The CPU as well as the GPU did not operate on full capacity due to whatever reason. Therefore, overall system was comparable to 6th or 7th Generation Intel.

  • medallish Says:

    So what's the point of Geekbench if it doesn't reflect ANY real scenario?

  • Andrew Says:

    Thank you for this battery test. There was some hubbub online about Ryzen Mobile supposedly having poor battery life - this shows that with identical specs, it's no different from Intel's.

  • riakoob Says:

    how is Ryzen "either a little faster or within striking range" when in gaming it shows 3 times more fps than intel?

  • PhoBoChai Says:

    Why do you guys test gaming on iGPU notebooks with High detail settings and 1080p? Especially AAA titles like Rise of the Tomb Raider, where even the Xbox 1 doesn't run High @ 1080p. :) Turn down to low/med, or 720p for iGPU testing!

  • Frank Dick Says:

    An APU is a combo of a CPU and a GPU, in this case a Ryzen CPU with a Vega GPU.

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