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Asus ZenBook 15 UX534 review: Smaller, not better

Laptops keep getting smaller, and Asus has been at the forefront of that trend. Dell started things off with its XPS 13, which leveraged smaller bezels, but Asus has doubled down. Nearly every member of its premium ZenBook line is focused on packing as much computer into as small a frame as possible, and the ZenBook 15 UX534 ($1,399) that I reviewed is no exception.

To be sure, the ZenBook 15 is a petite laptop given its 15.6-inch display. Its 92% screen-to-body ratio means that the chassis is as small as possible, yet it still houses an 8th-gen Intel Whiskey Lake Core i7-8565U CPU and an Nvidia GeForce GTX 1650 GPU.

That’s a lot of power for such a small machine, but there’s more to the story.

Going stale

Over time, ZenBook has become as consistent as Lenovo’s ThinkPad in its aesthetic. The ZenBook 15 has the iconic Asus concentric swirl on the lid, it’s blue with gold trim, so you’d be hard-pressed to tell the difference between this model and the ones that came before it.

Note that the ZenBook 15 competes with the Dell XPS  15, which also hasn’t changed up its design in a while, so it might not be fair to give Asus too much of a hard time.

I don’t begrudge Asus the ZenBook 15’s build quality. Its all-aluminum body is as solid as any competitor. Asus has paid a lot of attention to build quality, and it shows. It’s at least as good as the XPS 15 in this regard, and I haven’t reviewed a laptop that’s better.

Is the ZenBook 15 so much smaller than the XPS 15, or other similar laptops, that it’s size is a significant benefit? It depends on which dimension you’re looking at.

To be precise, the ZenBook 15 is only a tenth of an inch less wide than the XPS 15, while an inch shallower. It’s also a bit thicker at 0.74 inches compared to the XPS 15 at 0.66 inches. Finally, the ZenBook 15 is lighter at 3.6 pounds versus the XPS 15’s 4.5 pounds.

So yes, the ZenBook 15 is a bit smaller, and it’s quite a bit lighter. That’s a benefit. It also demands compromises.

Connectivity is one example. The ZenBook 15 has two USB-A ports for legacy support, one Gen 1 (up to 5Gb/s) and one Gen 2 (up to 10Gb/s), a single USB-C Gen 1 port, a full-size HDMI port, and a full-size SD card reader.

That’s excellent, except for one thing. There’s no Thunderbolt 3 port, which is unforgivable in a premium laptop. Wireless connectivity is also stuck in the past, with gigabit 2X2 MU-MIMO 802.11ac Wi-Fi (no Wi-Fi 6 or 802.11ax) and Bluetooth 5.0.

Fast, but not the fastest

The ZenBook 15 is smaller than the XPS 15 (and the Lenovo ThinkPad X1 Extreme, another powerful laptop), but can it keep up in terms of its performance?

No, it can’t. The ZenBook 15 equips a quad-core Core i7-8565U, which can’t compete with the six-core Core i7-9750H (not to mention the Core i9 that’s also available) in the XPS 15.

As with the 13.3-inch and 14-inch models, the ZenBook 15’s hinge angles the keyboard up away from a desktop (or a lap). That allows for better airflow and a more comfortable experience. The fans spin up, but they’re not overly loud and they do their job.

That does make the most of the quad-core chip. Asus finishes our Handbrake video transcoding test in around three and a half minutes, significantly faster than other quad-core 15-watt laptops, which typically need a minute longer.

For example, the Dell XPS 13 2-in-1 uses Intel’s 10th-gen Ice Lake Core i7-1065G7 (the ZenBook line will get 10th-gen CPUs in Q1 2020), a 15-watt quad-core part, and it came in almost exactly at four and a half minutes.

The ZenBook 15 performed well for a thin and light laptop, but it’s not as quick as the XPS 15.

However, the Dell XPS 15 with the Core i9-9980HK finished the same test in a blistering 80 seconds. The ZenBook 15 clearly isn’t in the same class.

The same is true, albeit to a lesser extent, when it comes to the ZenBook 15’s GPU performance. It scored well in the 3DMark synthetic benchmarks, but nevertheless behind the XPS 15 by 20% on the Time Spy test. In our actual gaming benchmarks, the ZenBook 15 again performed well for a thin and light laptop but not as quick as the XPS 15. The ZenBook 15 managed 89 frames per second (FPS) in Civilization VI compared to the XPS 15’s 82 FPS at 1080p and medium settings, which surprised me.

But in the rest of our test games, the XPS 15 was faster: 67 FPS vs. 60 FPS in Fortnite at 1080p and high settings, 42 FPS vs. 39 FPS in Assassin’s Creed Odyssey at 1080p and high settings, and 54 FPS vs. 41 FPS in Battlefield V at 1080p and medium settings.

About Idoko Enenche

MD/CEO Ritelink Technologies. A philanthropist, a goal getter and achiever, An entrepreneur and above all, a Good fearing man

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