Battery Life

Microsoft outfits all of the Surface Laptop 3 models with just a 46 Wh battery, which is actually slightly smaller than the one in the Surface Laptop 2, and all despite this 15-inch model being physically larger. Microsoft has also changed their battery testing methodology from a basic local video playback time, to a more realistic workload, so if you’re looking at the Microsoft spec pages, expect to see a lower runtime advertised as well.

The original Ryzen 2000 Raven Ridge platform had some serious power management issues, and this will be our first test of any Picasso based laptops, since AMD hasn’t had a lot of big design wins previous to this one for their second generation Ryzen APU.

Light Web

Battery Life 2013 - Light

The 15-inch Surface Laptop 3 achieves just a touch under nine hours of runtime in our least-intensive battery test, with the display set to our standard of 200 nits brightness. While nine hours is a reasonable amount of time, it’s still well under the results from the smaller 13.5-inch Surface Laptop 2 we tested, which achieved almost 12 hours. That is a significant difference, of which some could likely be accounted by the larger display, which would inherently require more power to get to 200 nits, but it’s too big of a discrepancy to rest only on the display.

2016 Web

Battery Life 2016 - Web

Our newer web test is much more CPU intensive, and a more realistic result than the older, lighter test. As expected, the results dropped further, to just over eight hours of usage, which is still a reasonable amount of time, but well under the 10.5 hours achieved by the Surface Laptop 2.

Movie Playback

Battery Life Movie Playback

Video playback is one of Intel’s strengths, but it continues to be one of AMD’s weaknesses, with video playback time far shorter than the Intel offerings. Intel has put a lot of effort into offloading the video playback to fixed function hardware and turning the rest of the chip off, and while AMD certainly has hardware decode on their APU, it clearly can’t turn off the rest of the chip during playback, since the battery run time is somewhat less than our light web test.

Battery Life Tesseract

On the Tesseract score, the Surface Laptop 3 is still able to watch almost four entire sittings of The Avengers, which is a lot, but well under the 6.4 plays on the Surface Laptop 2.

Normalized Results

Battery Life 2013 - Light Normalized

Battery Life 2016 - Web - Normalized

Removing the battery size from the runtimes lets us look at overall platform efficiency during the tests, and removes the insane runtime the Surface Book 2 provides thanks to its massive battery. Here the results are mixed. AMD has certainly made some tremendous strides in improving the abysmal platform power of the Ryzen APU from the original Raven Ridge to the current Picasso platform, with a much better showing in both the light test and 2016 Web results. Some of the discrepancy would come down to the display as well, since the larger 15-inch IGZO panel will need more power to light up to 200 nits than an equivalent 13.5-inch that we see in the Surface Laptop 2, but AMD definitely has more work to do in order to bring Ryzen's platform power down to what Intel has achieved.

The Acer Swift 3, which was the first Raven Ridge laptop we tested, drew 5.71 watts of power at idle with the display at 200 nits. That actually compares favorable with a Surface Book 2 15, which draws about the same – 5.53 Watts at idle with the display at 200 nits, but the main difference is the Surface Book 2’s display is the majority of the power draw thanks to its high resolution and 15-inch size. Removing display power from the devices results in the Acer Swift 3 drawing 4.55 watts at idle, and the Surface Book 2 drawing just 1.43 watts. The HP Spectre Folio, which features a Core i7 Y series processor, draws just 750 mW of power at idle.

The Surface Laptop 3 draws right around 5 Watts of power at idle with the display at 200 nits. That’s once again similar to the Surface Book 2 15, which draws 5.53 Watts. However, the Surface Laptop 3’s lower resolution display accounts for much less of the total platform draw. Removing the display from the equation results in the Surface Laptop 3 still drawing 2.35 Watts at idle. That’s significantly more than an Intel platform. So, while AMD has improved their battery draw tremendously, 2.35 Watts of idle power draw is still a lot and leads to the 15-inch Surface Laptop 3 delivering less battery life than the Surface Laptop 2, which was 8th generation Intel.

Charge Time

To make up for the less than amazing battery life of the Surface Laptop 3, Microsoft does include a stout 65-Watt charger which connects to the Surface Connect Port. All Surface power bricks also include an integrated USB-A output which is very handy when traveling if you need to charge your phone, although they may need to add USB-C soon.

Battery Charge Time

The Surface Laptop 3 charged very quickly. The smaller than average battery sized coupled with a larger than average adapter gave Microsoft lots of capacity to quickly get the Laptop 3 back up to a full charge.

Display Analysis Wireless, Audio, Thermals, and Software
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  • Marlin1975 - Monday, October 21, 2019 - link

    For being the base AMD Ryzen model CPU/GPU it performs much better than I though it would. Hopefully you can get a Ryzen 7 version to test soon as well. Reply
  • Rickyxds - Monday, October 21, 2019 - link

    The AnandTech is protecting Intel and UHD performance, Why they don't show UHD 630 performance in Rise of the Tomb Raider?

    they don't show but I will tell you! in the same configuration the UHD 630 offer only 20 fps.

    You can search on web the uhd 630 performance on Rise of the Tomb Raider, internet can show!
    Reply
  • cyrusfox - Monday, October 21, 2019 - link

    UHD 630 is the old Intel GPU(Gen 9.5) found on coffee lake. The new surface has ice lake chips has Gen 11 GPU, Iris plus with 64 EU. Supposedly twice as fast as the prior generation.

    I am sure we will see cross comparison reviews, especially when someone gets Enterprise 15"(Intel version) to compare straight to consumer 15"(AMD).
    Reply
  • justin.anthony.hall - Monday, October 21, 2019 - link

    mine is delivered tomorrow, i7 version. I'll let y'all know. Reply
  • mooninite - Monday, October 21, 2019 - link

    Early tests of Ice Lake Iris show it is more of the same old junk from Intel. Nothing special. Vega still wins. Reply
  • 0ldman79 - Sunday, December 15, 2019 - link

    It's just like their previous IGP.

    Intel brags about "up to 64 EU IGP" then 99% of their SKU have 24 EU or less. One model has 64 EU and that's only their high end i7 K model. Who the hell is going to buy a $600+ CPU and run the IGP? Even if it is Intel's best IGP it's still below a 750 Ti.
    Reply
  • Ryan Smith - Monday, October 21, 2019 - link

    "Why they don't show UHD 630 performance in Rise of the Tomb Raider?"

    As you've correctly noted, the short answer is that it's very slow. Too slow to even justify the time benchmarking, unless you like framerates in the teens.

    Ultimately the Ryzen APUs are fast enough that we treat them like low-end dGPUs, and that includes running AAA gaming benchmarks on them. The Gen 9.x GT2 GPUs, on the other hand, are decidedly a tier lower for intensive gaming workloads.
    Reply
  • Teckk - Monday, October 21, 2019 - link

    Good win for AMD not battery life is a bit underwhelming. With the new 1W display for new laptops (based on IceLake?), this needs some serious improvement. AMD needs Ryzen mobile on 7nm soon.
    A decent laptop but, 128 GB as baseline, really? Good to see they're not offering 4 GB RAM at least. Add another USB port and this is a good enough machine for light home usage.
    Reply
  • eastcoast_pete - Monday, October 21, 2019 - link

    Thanks for the review! Unfortunately, it confirmed several of my fears - the AMD version of the new Surface is definitely usable, but behind even the previous (Intel) generation of this premium laptop line. The Wifi choices made by MS are indeed questionable at best, while the low battery life points to the basic problem of using a chip not designed for mobile use in an ultraportable. Really wish AMD would roll out a true Zen2+ or better mobile APU with better power management. For now, it continues to play second fiddle to Chipzilla's offerings. Reply
  • GreenReaper - Monday, October 21, 2019 - link

    Microsoft is likely to be one of their first customers for this, too... in their consoles. Realistically we'll only start seeing new PCs with equivalent APUs around that time - most likely with 802.11ax Wi-Fi as well in the case of the inevitable Surface Laptop 4. Reply

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