ASRock Fatal1ty B450 Gaming-ITX/ac Review: Small Wonder

How We Test

A lack of Mini-ITX samples for socket AM4 forced us to re-test an earlier ASRock model, the X370 Gaming-ITX/ac, as a direct comparison to the cheaper and more modern B450 Gaming-ITX/ac. Larger ATX models based on the even higher end X470 chipset, the Biostar Racing X470GT8 and Gigabyte X470 Aorus Gaming 7 WiFi, fill out the rest of our comparison roster. We hope that including those top boards will help to prove the worth of today's lower-cost focus.


Integrated HD audio


Integrated gigabit networking

Graphics Driver

GeForce 399.24

The same platform that cools the intense heat of our X299 motherboards works equally well with AMD’s AM4 processors, as proven in the overclocking evaluation on the next page.

Comparison Products

Benchmark Settings

Synthetic Benchmarks & Settings

PCMark 8

Version 2.7.613
Home, Creative, Work, Storage, Applications (Adobe & Microsoft)

3DMark 13

Version 4.47.597.0
Skydiver, Firestrike, Firestrike Extreme Default Presets

SiSoftware Sandra

Version 2016.03.22.21
CPU Arithmetic, Multimedia, Cryptography, Memory Bandwidth


4K Random Read, 4K Random Write
128K Sequential Read, 128K Sequential Write

Cinebench R15

Build RC83328DEMO
OpenGL Benchmark


Version 1.5.8
Face Detection, Optical Flow, Ocean Surface, Ray Tracing

Application Tests & Settings


Version 3.98.3
Mixed 271MB WAV to mp3: Command: -b 160 --nores (160Kb/s)

HandBrake CLI

Version: 0.9.9
Sintel Open Movie Project: 4.19GB 4K mkv to x265 mp4


Version 2.68a
BMW 27 CPU Render Benchmark, BMW 27 GPU Render Benchmark


Version 16.02
THG-Workload (7.6GB) to .7z, command line switches "a -t7z -r -m0=LZMA2 -mx=9"

Adobe After Effects CC

Release 2015.3.0, Version
PCMark-driven routine

Adobe Photoshop CC

Release 2015.5.0, 20160603.r.88 x64
PCMark-driven routine (light and heavy)

Adobe InDesign CC

Release 2015.4, Build x64
PCMark-driven routine

Adobe Illustrator

Release 2015.3.0, Version 20.0.0 (64-bit)
PCMark-driven routine

Game Tests & Settings

Ashes of the Singularity

Version 1.31.21360
High Preset - 1920 x 1080, Mid Shadow Quality, 1x MSAA
Crazy Preset - 1920 x 1080, High Shadow Quality, 2x MSAA

F1 2015

2015 Season, Abu Dhabi track, Rain
Medium Preset, no AF
Ultra High Preset, 16x AF

Metro: Last Light Redux

Version 3.00 x64
High Quality, 1920 x 1080, High Tesselation, 16x AF
Very High Quality, 1920 x 1080, Very High Tesselation, 16x AF

The Talos Principle

Version 267252
Medium Preset, High Quality, High Tesselation, 4x AF
Ultra Preset, Very High Quality, Very High Tesselation, 16x AF

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    Your comment
  • Onus
    I've been eyeing this board for months now; it looks like a real winner. If I build another AM4 system (hey, I DO have a 1600X on a shelf right now...), this one is on the [very] Short List.
  • TCA_ChinChin
    Looks like a cheap but still good ITX option. Thanks for review.
  • stdragon
    A real Intel I211 Gigabit Ethernet controller. Very NICE! Much better than Realtek
  • Onus
    Historically, the only expansion cards I have used are video cards, [fax]modems, and wireless NICs. Ok, I can add a video card to this board. I don't need a standard modem, and my Brother MFC all-in-one can fax (yes, I've done it quite a few times); and this board has wireless built-in. It's marginally low on SATA ports, but the M.2 takes care of that, so I can have: Data drive, Backup drive, optical drive, and external SATA dock, in addition to the M.2 boot drive.
    So, it checks all the boxes. Well, all except current need...
  • adamdbz
    I have it paired with an r5 2600 and UV Vega 56, 4 sata ssd's and one nvme drive boots in 5-6 secs in a cooler master elite 130..
    great board, but for the past 3 weeks the Bluetooth started to disconnect every second so i had to disable it in device manger.. ill get to fix it when I have time..