ASRock Brings Zen 2 NUC : 4X4 BOX-4800U Renoir Mini-PC Reviewed
by Ganesh T S on November 25, 2020 11:00 AM ESTHTPC Credentials - I
The ASRock 4X4 BOX-4800U comes with four display outputs. All of them support 4Kp60, with the HDMI port providing support for HDR as well as HDCP 2.2. Unfortunately, UHD Blu-rays can't be played back on the system, though HDCP 2.2 enables other protected content to be displayed at full resolution. The system also supports HD audio bitstreaming over the HDMI port.
Our evaluation of the 4X4 BOX-4800U as a HTPC was done using the native HDMI output connected to a TCL 55P607 4K HDR TV via a Denon AVR-X3400H AV receiver.
We tested out various display refresh rates ranging from 23.976 Hz to 59.94 Hz. Of particular interest is the 23.976 Hz (23p) setting, which Intel used to have trouble with in the pre-Broadwell days.
The gallery below presents screenshots from the other refresh rates that were tested. The system has no trouble maintaining a fairly accurate refresh rate throughout the duration of the video playback.
Our HTPC testing with respect to YouTube had been restricted to playback of a 1080p music video using the native HTML5 player in Firefox. The move to 4K, and the need to evaluate HDR support have made us choose Mystery Box's Peru 8K HDR 60FPS video as our test sample moving forward. On PCs running Windows, it is recommended that HDR streaming videos be viewed using the Microsoft Edge browser after putting the desktop in HDR mode.
The system is supposed to support 4Kp60 VP9 Profile 2 playback, and MS Edge automatically gets the correct encode from the YouTube servers. However, the playback was punctuated by frequent dropped frames as shown in the statistics segment of the above screenshot.
Various metrics of interest such as GPU usage and at-wall power consumption were recorded for the first four minutes of the playback of the above video. The numbers are graphed below.
The GPU and decoder utilization numbers spiking close to 100% in the above graph explains the dropped frames. Interestingly, as we shall see in the next section, local playback fo VP9 Profile 2 videos didn't result in any issues.
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damianrobertjones - Wednesday, November 25, 2020 - link
Dangerous. People are not often the brightest and help lines would probably be called when owners try to plug in a crappy usb c charger.1_rick - Thursday, November 26, 2020 - link
If your GPU can detect you didn't plug in the PCIe power plugs and refuse to let the computer boot there's no reason they can't do the same here.damianrobertjones - Monday, November 30, 2020 - link
People buy cheap chargers for phones. Nothing will change in this case.dontlistentome - Wednesday, November 25, 2020 - link
... Thunderbolt please. Can then power with it and have multiple 4K screens and peripherals hanging off 1 cable. Can then just swap the cable between this and my work PC when I work at home.timecop1818 - Wednesday, November 25, 2020 - link
Alt mode HDMI is dead, there are literally zero devices which support or implement it. It only exists as a specification. There's very little point anyway because dp alt mode is superior in every way, such as being able to reduce lane count to share usb3hs. But with hdmi alt mode, you are using all 4 lanes just to transmit 1080p.SeanFL - Wednesday, November 25, 2020 - link
Price is comparable to the Asus PN50 with the 4800U. Anyone have thoughts on which would be the one to buy?I've not been successful at finding the PN50 locally, Microcenter had a couple in stock then was sold out.
eastcoast_pete - Wednesday, November 25, 2020 - link
Thanks Ganesh! The overall performance is decent, the problems with HTPC use unfortunate. One other piece of information I might have missed: just how noisy does this unit get, and how annoying is the fan noise? I am asking as especially smaller fans can be a lot more annoying than the simple dB(A) numbers suggest. Having had a laptop with this "feature", I now always ask about that before even thinking of buying.smilingcrow - Wednesday, November 25, 2020 - link
It seems a major omission for a system that was reviewed for HTPC features and might end up in the lounge.spikebike - Wednesday, November 25, 2020 - link
Nice, been waiting for a decent NUC like product with an AMD CPU. This looks quite competitive, but seems like waiting until CES in January will be worth it. The Zen3 is a killer upgrade and might well mean it's worth keeping for another year or two.grant3 - Wednesday, November 25, 2020 - link
Most hardware refreshes are annual, and you're willing to wait 2 years? With that mindset you'll never, ever buy anything because you know a better version will eventually arrive in that timeframe. Maybe 2 better versions.