AMD + ITX + TB3? It's the ASRock X570 Phantom Gaming-ITX/TB3 Motherboard Review

Board Features

The X570 Phantom Gaming-ITX/TB3 is the only current small form factor motherboard in ASRock's X570 product stack and commands a price tag of $240. It has a couple of interesting inclusions including an HDMI 2.0 which allows users of AMD's Ryzen APUs the ability to output the integrated graphics. A single DisplayPort 1.2 input allows users to re-route the video signal from a graphics card and output it through the Thunderbolt 3 USB 3.1 G2 Type-C port; one of the main benefits to Thunderbolt 3 is it has a blisteringly fast 40 Gbps throughput which is capable of driving multiple 4K displays at once. Also on the rear panel are two USB 3.1 G2 Type-A and two USB 3.1 G1 Type-A ports. A common limitation of using a small form factor such as mini-ITX is that there is little room for PCIe and X570 Phantom Gaming-ITX/TB3 has just one full-length PCIe 4.0 x16 slot.

For storage, the ASRock X570 Phantom Gaming-ITX/TB3 has just one PCIe 4.0 x4 M.2 slot which is mounted onto the rear of the board. The other physical slot located on the front of the PCB is a M.2 Key-E slot which is already populated with an Intel AX200 Wi-Fi 6 802.11ax wireless interface which offers uses BT 5.0 connectivity. This board also features an Intel I211-AT Gigabit NIC which powers the single Ethernet port on the rear panel. Also featured are four SATA ports which support RAID 0, 1, and 10 arrays. Another limitation of mini-ITX is present with just two memory slots which support up to DDR4-4533 and offer a maximum capacity of up to 64 GB. A Realtek ALC1220 HD audio codec powers the five 3.5 mm audio jacks and S/PDIF optical output on the rear panel, as well as the front panel audio header.

Test Bed

As per our testing policy, we take a high-end CPU suitable for the motherboard that was released during the socket’s initial launch and equip the system with a suitable amount of memory running at the processor maximum supported frequency. This is also typically run at JEDEC subtimings where possible. It is noted that some users are not keen on this policy, stating that sometimes the maximum supported frequency is quite low, or faster memory is available at a similar price, or that the JEDEC speeds can be prohibitive for performance. While these comments make sense, ultimately very few users apply memory profiles (either XMP or other) as they require interaction with the BIOS, and most users will fall back on JEDEC supported speeds - this includes home users as well as industry who might want to shave off a cent or two from the cost or stay within the margins set by the manufacturer. Where possible, we will extend out testing to include faster memory modules either at the same time as the review or a later date.

Readers of our motherboard review section will have noted the trend in modern motherboards to implement a form of MultiCore Enhancement / Acceleration / Turbo (read our report here) on their motherboards. This does several things, including better benchmark results at stock settings (not entirely needed if overclocking is an end-user goal) at the expense of heat and temperature. It also gives, in essence, an automatic overclock which may be against what the user wants. Our testing methodology is ‘out-of-the-box’, with the latest public BIOS installed and XMP enabled, and thus subject to the whims of this feature. It is ultimately up to the motherboard manufacturer to take this risk – and manufacturers taking risks in the setup is something they do on every product (think C-state settings, USB priority, DPC Latency / monitoring priority, overriding memory sub-timings at JEDEC). Processor speed change is part of that risk, and ultimately if no overclocking is planned, some motherboards will affect how fast that shiny new processor goes and can be an important factor in the system build.

Hardware Providers for CPU and Motherboard Reviews
Sapphire RX 460 Nitro	MSI GTX 1080 Gaming X OC	Crucial MX200 + MX500 SSDs	Corsair AX860i + AX1200i PSUs
G.Skill RipjawsV, SniperX, FlareX	Crucial Ballistix DDR4	Silverstone Coolers	Silverstone Fans

New Test Suite: Spectre and Meltdown Hardened

Since the start of our Z390 reviews, we are using an updated OS, updated drivers, and updated software. This is in line with our CPU testing updates, which includes Spectre and Meltdown patches. We are also running the testbed with the new Windows 10 1903 update for AMD's Ryzen 3000 series CPUs, and X570 motherboard reviews. The Windows 1903 update improves multi-core and multi-thread performance on AMD's Ryzen processors with topology awareness meaning previous issues in regards to latency have been known to affect performance. As users are recommended to keep their Windows 10 operating system updates, our performance data is reflected with the 1903 update.