Wireless

Dell offers two wireless radio options for the XPS 13, and both are Killer-branded. The default wireless card is the Killer Wi-Fi 6 AX1650, which is a 2x2:2 wireless solution based on the excellent Intel AX200. If somehow you missed it, Intel recently acquired Rivet Networks, so the Killer brand should continue to provide the performance and stability of the Intel adapters for the foreseeable future. Dell also lists a second Killer AX500 Wi-Fi 6 option, but this Killer product is based on the Qualcomm 6390 Wi-Fi 6 chipset. Since Killer has been acquired, that part may not be around for much longer. Our review unit features the Intel-based AX1650.

WiFi Performance - TCP

Performance is simply fantastic, and ever since Killer was able to base their network cards on Intel wireless, the stability concerns appear to be a forgotten memory. There was not a single time that the laptop had any issues with its network connection during any of the testing. That was certainly not the case on some of the older Qualcomm-based Killer products.

Audio

Dell offers Waves MaxxAudio Pro stereo speakers, at 2.5 Watts peak each, which are outfitted on the bottom of the laptops right on the edge of the device.

Sound quality is a bit on the tinny side, with not a lot of low end at all. The speaker setup does get quite loud though, with 83 dB(A) measured one inch over the trackpad at maximum volume. There was little to no distortion at peak volume either.

The dual-microphone array is found on the very top of the bezel, which would allow it to work with the device closed. It is a great way to hide the holes, with only the 2.25 mm 720p webcam showing in the bezel itself.

Thermals

Dell outfits the XPS 13 with dual fans and a single heatpipe to cool the 15-Watt Thermal Design Power of the Core processor under the hood. They have added hidden exhaust vents in the hinge, to allow more airflow without compromising the looks. There is also a layer of GORE thermal insulation under the keyboard, which helps keep that portion cool to the touch even under load.

To see how the XPS 13 performs under load, it was run at 100% for an extended period while monitoring the device.

This graph tells an interesting story, unlike most laptops we see. First, Dell has gone absolutely crazy with the PL2 level on the XPS 13, with a peak measurement of a whopping 42 Watts. But, that is not sustainable in a 13-inch laptop, and the CPU throttles in PL2 until it reaches the PL1 limit, which is right at 15 Watts in the XPS 13’s most performant mode. Most of the notebooks we have tested tend to allow a PL1 level above this, with maybe 20-21 Watts as a constant, but Dell clamps to 15 Watts, then spikes back up when the thermals allow, so we see this see-saw effect of the device running between 15 and 30 Watts. This is similar to how the XPS 13 2-in-1 behaved, and it would be nice to see the company address this with a more consistent power delivery under sustained load.

Over the duration of the test, the device averaged 18 Watts of draw, with an average CPU temperature of 80°C, with the four cores running at 2100 MHz. During this extended run, the noise level was very restrained, only hitting around 44 dB(A) measured about one inch over the trackpad. The GORE thermal insulation also did its job, with the keyboard deck remaining cool.

Software

Dell’s included software suite is a very polished set of applications, allowing the user to quickly get the device set up, adjusted, and of course, contact support. As with most manufacturers, they include a utility to get the latest updates, called Dell Update, and that includes some maintenance utilities as well.

Dell’s Power Manager software allows you to change the power profile, as well as adjust the battery charging. The Thermal Management tab allows you to pick a fan and CPU profile, or leave it as the default Optimzed setting which works well for most scenarios.

Dell offers a plethora of battery options to maintain and extend the life of the battery. Out of the box, it comes in an “Adaptive” setting which learns your usage patterns and tries to keep the battery at a good state of charge, but you can override that to keep the battery always at 100% charge in case you need it, or if you mostly use it on AC you can set it to keep the battery to a lower level of charge to prolong its life.

The days of laptops being saddles with an almost unending array of shareware and trial software seem to be mostly over, and even though Dell included Norton with the XPS 13, it can easily be removed if necessary.

Battery Life and Charge Time Final Words
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  • Jorgp2 - Thursday, July 16, 2020 - link

    >Zen 2 mobile chips easily outperform Ice Lake and Comet Lake

    Only in multicore, and only because they have 8 cores.

    The Zen 2 architecture still has around Skylake level performance, SNC and WLC have a much higher lead over Skylake than Zen 2 does.
  • rhysiam - Thursday, July 16, 2020 - link

    On what basis are you announcing Sunny Cove and the unreleased Willow Cove as superior architectures? Can you link to some data to support that? Because this review directly contradicts that claim.

    The lightly threaded tests in this very review show the 4700U trading blows with the 1065G7. Both are clocked similarly. IPC is close in workloads that are relevant to ultrabooks.

    I just can't see any basis for the claims you are making here.
  • Deicidium369 - Friday, July 17, 2020 - link

    Comparing a 2020 CPU with a 2019 CPU is not a fair comparison.
  • sorten - Thursday, July 16, 2020 - link

    Most of what I do as a software engineer, from the compilers, build tools, and the software I write, eats up the cores. So if I can get 2x the cores for less money, then that's a bonus rather than a point against AMD.
  • vladx - Friday, July 17, 2020 - link

    As a fellow software engineer, I still prefer Intel over AMD. What you win with having more cores, you lose with poor compiler optimizations and the big advantage of AVX-512 in certain workloads. Not to mention AMD platforms tend to have more bugs at launch so you spend more time finding workarounds.
  • Spunjji - Friday, July 17, 2020 - link

    @vladx with the FUD here. Nice weasel words with "tend to have more bugs" even though we're talking about a specific platform that doesn't have any egregious bugs.
  • Santoval - Friday, July 17, 2020 - link

    "and the big advantage of AVX-512 in certain workloads. "
    Can you name some of these workloads? Even better, out of 10 workloads (or, to make it temporal, out of every "10 programming hours") on average how many can benefit by or be accelerated with AVX-512? Hand on heart answers only please.
    As for the "poor compiler optimizations" do you mean the "super aggressive compiler flags Intel tends to prefer that often result in poorer, bug prone code"?
    Spunjji below covered me with the arbitrary "bugs" of the "AMD platforms".
  • Santoval - Friday, July 17, 2020 - link

    "The Zen 2 architecture still has around Skylake level performance, SNC and WLC have a much higher lead over Skylake than Zen 2 does."
    That is pure, groundless BS. You have also confused the Zen 2 "architecture" (thus only the *IPC* of Zen 2) with Skylake's "performance" (both its IPC and clock speed). That is like comparing the acceleration from 0 to 60/100 of one car with the final speed of another car without even realizing the arbitrary comparison.
    Finally CPUs with Willow Cove (i.e. Tiger Lake) has not even been released yet, so referring to Willow Cove in the present tense is beyond surreal.
  • dudedud - Friday, July 17, 2020 - link

    Did you even see the Cinebench single threaded results? Zen 2 has Ice Lake performance at around the same clock (4.1 vs 3.9)
  • Brett Howse - Friday, July 17, 2020 - link

    There seems to be a lot of misinformation flying around here. Perhaps I should link to our initial Ryzen 7 4700U review in every review I do. Ice Lake is well ahead in single-threaded performance over Zen 2, despite the lower frequency. AMD has double the cores though so even lightly threaded workloads can see a nice improvement.

    Please reference this:
    https://www.anandtech.com/show/15762/the-acer-swif...

    Cinebench is just a single workload and is compute bound.

    Hopefully we can update our SPEC results with a LPDDR4 laptop as well since our first take was just DDR4.

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