Minisforum HX90 AMD Ryzen 9 5900HX Mini PC Review

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Minisforum HX90 Internal Hardware Overview

Once the bottom cover is off, we can see the storage and WiFi area.

Minisforum HX90 Kingston NVMe SSD And Dual 2.5 Area 1
Minisforum HX90 Kingston NVMe SSD And Dual 2.5 Area 1

The unit has room for two 2.5″ SSDs. One item we were not crazy about was that they use proprietary cables to connect power and data to the motherboard. Still the design uses two hooks on one side, then the drive(s) can be secured via two additional screws.

Minisforum HX90 Dual 2.5 Area 2 With Samsung And Connectors
Minisforum HX90 Dual 2.5 Area 2 With Samsung And Connectors

This system only has one M.2 slot. Here we get a Kingston PCIe Gen3 NVMe SSD at 512GB in our configuration (others available.) Compared to some of the SSDs we saw in units like the Topton M6 this is at least a brand many are familiar with.

Minisforum HX90 Kingston NVMe SSD
Minisforum HX90 Kingston NVMe SSD

The WiFi on the listing we purchased from said WiFi 6, but this unit came with WiFi 6E. It was a MediaTek module, so that is a little less exciting than getting an Intel AX210.

Minisforum HX90 MediaTek WiFi 6E Under NVMe SSD
Minisforum HX90 MediaTek WiFi 6E Under NVMe SSD

Getting inside the system takes some prying, but once inside the motherboard exposes upgradable SODIMMs. Still, getting to this side of the chassis is much more difficult.

Minisforum HX90 Motherboard 2
Minisforum HX90 Motherboard 2

The SODIMMs are also Kingston units.

Minisforum HX90 Kingston SODIMMs
Minisforum HX90 Kingston SODIMMs

We noticed a second 4-pin PWM fan header, but this was not being used in our system.

Minisforum HX90 Extra Fan Header Empty Space And Front Panel Connector
Minisforum HX90 Extra Fan Header Empty Space And Front Panel Connector

The heatsink is a downward firing fan design with two heat pipes and in a black finish.

Minisforum HX90 AMD Ryzen 9 5900HX Heatsink 1
Minisforum HX90 AMD Ryzen 9 5900HX Heatsink 1

This heatsink fan pulls air through the top hole of the chassis.

Minisforum HX90 Motherboard 3
Minisforum HX90 Motherboard 3

Minisforum seems to have had challenges with pre-production units and liquid metal, but our unit did not have stray liquid metal on the board.

Minisforum HX90 AMD Ryzen 9 5900HX Heatsink 2
Minisforum HX90 AMD Ryzen 9 5900HX Heatsink 2

Something that we wish Minisforum looked at is to use a larger heatsink potentially dropping temperatures and fan noise even more.

Next, let us get to the performance.

Minisforum HX90 Performance

Instead of going through the entire Linux-Bench test suite, we are going to show a few performance and power numbers here to give a general sense of performance. This also gives us the opportunity to test with Linux/ Ubuntu instead of just Windows.

Python Linux 4.4.2 Kernel Compile Benchmark

This is one of the most requested benchmarks for STH over the past few years. The task was simple, we have a standard configuration file, the Linux 4.4.2 kernel from kernel.org, and make the standard auto-generated configuration utilizing every thread in the system. We are expressing results in terms of compiles per hour to make the results easier to read:

AMD Ryzen 9 5900HX Linux Kernel Compile Performance
AMD Ryzen 9 5900HX Linux Kernel Compile Performance

Performance of the AMD Ryzen 9 5900HX is very good, topping the 5750GE we see in the 1L PC segment by a small margin.

7-zip Compression Performance

7-zip is a widely used compression/ decompression program that works cross-platform. We started using the program during our early days with Windows testing. It is now part of Linux-Bench.

AMD Ryzen 9 5900HX 7zip Compression Performance
AMD Ryzen 9 5900HX 7zip Compression Performance

The AMD Ryzen 9 5900HX is a 45W base TDP CPU, so it is a higher-end CPU than many of the 35W TDP CPUs we see in the Project TinyMiniMicro space. That extra TDP headroom is yielding more performance.

OpenSSL Performance

OpenSSL is widely used to secure communications between servers. This is an important protocol in many server stacks. We first look at our sign tests:

AMD Ryzen 9 5900HX OpenSSL Sign
AMD Ryzen 9 5900HX OpenSSL Sign

Here are the verify results:

AMD Ryzen 9 5900HX OpenSSL Verify
AMD Ryzen 9 5900HX OpenSSL Verify

This is still an 8 core 16 thread Zen3 CPU, but we get some solid performance out of the CPU. In the video we discussed the GPU side which is still the Vega 8. It is not great for gaming, but works well for things like YouTube 4K and also game streaming via in-home streaming with Steam.

Minisforum HX90 Kingston NVMe SSD CrystalDiskMark
Minisforum HX90 Kingston NVMe SSD CrystalDiskMark

We also looked at the Kingston SSD performance, it is certainly a NVMe SSD, but it is not exactly top-tier PCIe Gen3 x4 NVMe SSD performance. We are now starting to see some mini PCs/ TMM nodes with Gen4 SSDs so this is good but not a great result.

4 COMMENTS

  1. Quoting the STH article:
    “In terms of noise, in the video we had the unit held up to the microphone so you can hear it. At idle and lower power it is quiet, bot silent. At 100W+ it gets quite a bit louder.”

    [The typo was in the version of the STH article that was on their website when I copied these 2 sentences.]

    Translation: if you want to do anything truly productive with this little toy be prepared to suffer with fan noise.

    So, yet another import product that proves the concept of: “Small, Quiet, Performant. Pick any two.” If this toy is successful in the retail market, then it will prove the old adage: “There’s a sucker born every minute.”

    It almost makes me think that STH is trying to supplant the “Fanless Tech” website for displaying the most absurd implementations of personal computing platforms.

    And in other news, this little toy must be making the reviewing rounds, and that sounds to me like a desparate marketing outfit at work. Another tech website that is heavily populated by PC nerd types did a review on this item. The user comments on that article did not have many nice words to say about this pint-sized joke of a computer; lots of comments about needing more ports if the intended use is “desktop replacement”.

  2. With the number of equipment already tested, it would be interesting to provide a page listing everything, like an intel ark ….

  3. I’d love to see the HM90 reviewed if you can get ahold of one. It has dual ethernet and a pair of 7mm sata drive bays, making it a great STH type mini pc.

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