ASUS ZenBook 14X OLED UX3404 review: Great performance & portability (Updated)

Note: This review was first published on 12 April 2023 and was updated on 24 April 2023 with availability and pricing details of a touchscreen version.

The spicy ZenBook

How has ASUS crammed a Core i9 processor (H-series, no less) and NVIDIA RTX graphics into a notebook just 16.9mm thick is the question I asked myself when I first received the ZenBook 14X OLED UX3404. Claimed weight is 1.5kg but it feels lighter than that – more like 1.3kg. If you are old enough, you’ll know that performance and portability are mutually exclusive concepts. So it’s remarkable to see how an ultraportable notebook can pack so much performance these days. Or is this all just fluff on a spec sheet? Let’s test and find out.

The TLDR version:



A great choice for anyone who wants a portable notebook but doesn't want to compromise (too much) on performance. However, the lack of a touchscreen might be a dealbreaker for some buyers.

X is for power

The first thing you need to know about the ZenBook 14X OLED UX3404 is that the X means it’s the performance-oriented version of the ZenBook 14. So to ensure its performance superiority over a regular ZenBook 14, the ZenBook 14X has a Core i9 H-series processor and discrete NVIDIA RTX 3050 graphics. And yet, if you close your eyes and held it, I doubt many will be it to distinguish it from the lighter and less powerful ZenBook 14. To me, that’s a remarkable feat of design and engineering. 

Build quality is high. It feels noticeably more rock solid than ZenBooks of old, so that must be applauded. It comes in two finishes: Inkwell Grey (which this is) and Sandstone Beige. The latter is quite special because its surface is treated to create a ceramic-like coating that is resistant to both fingerprints and wear. We had the chance to play around with a Sandstone Beige unit earlier this year and the surface truly resembles the feel of a ceramic tile. Check it out below. Inkwell Grey makes the notebook look like your typical grey notebook (which is no bad thing), but the cover is exceptionally prone to smudges.

Like most ZenBooks, this one has an OLED display. It’s 14.5 inches large, has a resolution of 2880 x 1800 pixels and a high refresh rate of 120Hz. It supports 100% of the P3 colour space and validated by Pantone and meets the requirements for VESA’s DisplayHDR True Black 600 standard. To most people, it just looks like a fantastic display. The extra inches help make it look more expansive and it looks wonderfully crisp and vivid.



The biggest problem with its display, however, is that it doesn’t support touch. I’ll say it again, it’s not a touch-enabled display. Personally, I’m not too bothered by it because I’m a keyboard-and-mouse kind of guy, but I can certainly understand why some readers might be frustrated by it. After all, the modern versions of Windows have and were designed for touch, and seeing that it’s already 2023, it’s surprising to see this feature missing on what is ASUS’ high-end version of the ZenBook 14.

Despite being so slim, you don’t lose much in terms of connectivity. There are two USB-C Thunderbolt 4 ports, a single USB-A USB 3.2 Gen 2 port, and you even get a full-size HDMI 2.1 port and a 3.5mm audio combo jack. The only thing missing is a memory card reader of any kind. 

Wireless connectivity is also good because it supports Wi-Fi 6E – a moot point given that the IMDA has yet to approve the standard, but someday, maybe? 



ASUS’ keyboard game has been strong and is no different here. I always liked how tactile their keys feel. ASUS doesn’t say, but the actuation force of its switches must be higher than its rivals’ because they feel stiffer. The trackpad can be erratic at times. The good thing is that it’s large and the surface is smooth, but the actual tracking action is prone to random moments of stickiness and inconsistent tracking.

The sound system is said to be certified by Harman Kardon and it features a smart amplifier. It does get quite loud, but at high volumes, there’s noticeable distortion. The treble is overly exaggerated and the bass doesn’t hit quite hard enough. The overall sound, though slightly better than most notebooks, still sounds thin. I recommend packing some headphones.

Performance analysis

To recap, the ZenBook 14X UX3404 features a Core i7-13900H processor, 16GB of memory, and GeForce RTX 3050. These are impressive specifications for a notebook that's just 16.9mm thick and 1.5kg heavy. To give it some context, this means it's only slightly bulkier than most ultraportable notebooks but it has a higher-performance CPU and GPU combo. It should easily outperform ultraportable notebooks that only have P-series CPUs and integrated graphics.

CPU performance

Thanks to its powerful Core i9-13900H processor, the ZenBook 14X’s CPU performance is good. Looking at the scores on Geekbench and Cinebench, it’s unquestionably a big step up from the 12th-gen P-series Core processors that are commonly found in ultraportable notebooks. However, it didn’t outperform the ZenBook Pro 14 Duo which has the last-generation Core i7-12700H. In some cases, the older notebook was faster. And if we had to guess, we’ll say it’s because the ZenBook Pro 14 Duo has a larger chassis and a beefier cooling system. That could have allowed it to perform better. Speaking of cooling, it’s worth mentioning that the ZenBook 14X gets really loud and hot when it’s taxed.

Graphics performance

The ZenBook 14X performed within expectations when it came to our graphics benchmark. Unsurprisingly, it’s a lot quicker compared to ultraportable notebooks with integrated graphics, and it put up decent playable frame rates in games even when we cranked up the graphics settings. But again, the ZenBook 14 Pro Duo with its slightly more powerful GeForce RTX 3050 Ti GPU and better cooling system was noticeably quicker, especially at the highest graphics settings.

Battery life

Note: Battery tests were conducted using PCMark 10's battery benchmark with the display set to 100% brightness.

ASUS notebooks have typically had batteries with decent capacity and the ZenBook 14X is no different. It has a 70Wh which allowed it to last nearly 8 hours on our battery test. That’s not a bad showing at all considering it has a 14.5-inch display, Core i9 H-series processor, and discrete graphics. Looking at its power consumption figure, we can see that it's quite frugal on energy. On the more intensive Gaming workload, however, it lasted just 86 minutes, which is to be expected given its power-guzzling discrete graphics. 

Powerful and portable

If you’ve been paying attention to what I've written, then you’ll know that the ZenBook 14X is a thin, relatively light, ultraportable notebook that has a powerful processor and fairly decent “game-ready” discrete GPU. If you expect all of this to come with a heavy price tag, you’d be right.

It’s S$2,699 which makes it one of ASUS’ more expensive ZenBooks. That’s to be expected given its rather high-end specs, but to give that number some context, look at the prices of Razer’s Blade 14. The most comparable Blade 14 has a Ryzen 9 processor, GeForce RTX 3060, but only a Full-HD screen and its MSRP is S$3,249. This means that, for its price, the ZenBook 14X actually represents good value for money.

Overall, the only notable shortcomings of this notebook are that the trackpad can be prone to random fits of erratic behaviour and that it doesn’t have a touchscreen. If the latter bugs you, let ASUS know on their social media channels because I’ve heard that they might bring in the touchscreen version. Make noise and let them know the folly of their ways. Otherwise, if you are looking for a powerful yet portable notebook, the ZenBook 14X has to be on your shortlist.

**Update on 24 April 2023**

ASUS has just confirmed that they will offer a touchscreen version of the ZenBook 14X. This version is S$2,799, which means it costs a hundred more.

Note: The ASUS ZenBook 14X OLED UX3404 starts at S$2,699 and you can find it on the ASUS Official Store on Lazada, the ASUS Official Store on Shopee, and the ASUS Online Store.

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