The ASRock Z270 Gaming-ITX/ac Review

CPU Performance

For our motherboard reviews, we use our short form testing method. These tests usually focus on if a motherboard is using MultiCore Turbo (the feature used to have maximum turbo on at all times, giving a frequency advantage), or if there are slight gains to be had from tweaking the firmware. We leave the BIOS settings at default and memory at JEDEC for these tests, making it very easy to see which motherboards have MCT enabled by default.

As it can be summarized by all of the following graphs, the ASRock Z270 Gaming ITX/ac falls victim to its own default BIOS settings, as it is the only motherboard that does not have MCT enabled by default. As such, it always falls shortly behind all other Z270 motherboards, especially in multi-threaded performance tests.

Video Conversion – Handbrake v1.0.2: link

Handbrake is a media conversion tool that was initially designed to help DVD ISOs and Video CDs into more common video formats. For HandBrake, we take two videos and convert them to x264 format in an MP4 container: a 2h20 640x266 DVD rip and a 10min double UHD 3840x4320 animation short. We also take the third video and transcode it to HEVC. Results are given in terms of the frames per second processed, and HandBrake uses as many threads as possible.

Handbrake v0.9.9 H.264 Encoding: 640x266 Film

Handbrake v0.9.9 H.264 Encoding: 3840x4320 Animation

Compression – WinRAR 5.4: link

Our WinRAR test from 2013 is updated to the latest version of WinRAR at the start of 2017. We compress a set of 2867 files across 320 folders totaling 1.52 GB in size – 95% of these files are small typical website files, and the rest (90% of the size) are small 30 second 720p videos.

WinRAR 5.0.1 Compression Test

Point Calculations – 3D Movement Algorithm Test v2.1: link

3DPM is a self-penned benchmark, taking basic 3D movement algorithms used in Brownian Motion simulations and testing them for speed. High floating point performance, MHz and IPC wins in the single thread version, whereas the multithread version has to handle the threads and loves more cores. For a brief explanation of the platform agnostic coding behind this benchmark, see my forum post here. We are using the latest version of 3DPM, which has a significant number of tweaks over the original version to avoid issues with cache management and speeding up some of the algorithms.

3DPM: Movement Algorithm Tester (1 Thread)

3DPM: Movement Algorithm Tester (10^4 Threads)

Rendering – POV-Ray 3.7.1b4: link

The Persistence of Vision Ray Tracer, or POV-Ray, is a freeware package for as the name suggests, ray tracing. It is a pure renderer, rather than modeling software, but the latest beta version contains a handy benchmark for stressing all processing threads on a platform. We have been using this test in motherboard reviews to test memory stability at various CPU speeds to good effect – if it passes the test, the IMC in the CPU is stable for a given CPU speed. As a CPU test, it runs for approximately 2-3 minutes on high end platforms.

POV-Ray 3.7 Render Benchmark (Multi-Threaded)

Synthetic – 7-Zip 9.2: link

As an open source compression tool, 7-Zip is a popular tool for making sets of files easier to handle and transfer. The software offers up its own benchmark, to which we report the result.

7-Zip 9.2 Compress/Decompress Benchmark

 

System Performance Gaming Performance
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  • GeorgeH - Tuesday, September 19, 2017 - link

    100-1 something is overheating and the board is just fine.
  • only1jv - Wednesday, September 20, 2017 - link

    that's what i figured, so i tried a different GPU, same result. I even swapped the PSU, same result. Swapped the memory, same result.

    The only thing i haven't swapped is the CPU but i'm running the Corsair H100i AIO watercooler and have never seen temps on it go above 70c.

    I figure it has to be the mobo itself because it would even lockup while in the BIOS.

    Oh and yes, i already requested an RMA. Just wanted to share my experience with this mobo after seeing this review and how after a few months it's now failing on me.
  • Ej24 - Wednesday, September 20, 2017 - link

    It was probably the VRM for delivering power to the cpu that was overheating causing the issue. There's no monitoring software for that so most people forget about it. Maybe you got some particularly hot chokes, mosfets, or caps that were just prone to overheating. At any rate, hope the RMA goes well.
  • sonny73n - Thursday, September 21, 2017 - link

    Last month I ran into the same problem but with Asus MB. Most of the time "clock_watchdog_timeout" error appeared when it froze. The weather then was about 100F in Southern Ca. CPU stock HSF replaced + case opened = problem solved.
  • The_Assimilator - Wednesday, September 20, 2017 - link

    Allow me to introduce you to this magical concept know as "RMA".
  • lucam - Wednesday, September 20, 2017 - link

    Still no iPad Pro review yet..:(
  • Beaver M. - Wednesday, September 20, 2017 - link

    I would really like to know why they removed 1 USB port at the IO panel.
    It was still there on the Z170 version.
    Also putting in WiFi as part of the board, that cant be removed, is not a good idea either. They might have saved some space on the board, but they didnt use it (for example more USB headers), and instead wasted space on the IO panel. Some people just dont need WiFi and/or Bluetooth.

    Also why doesnt AT test if the notorious ASRock USB problem with long or extended cables still exists, which could only be fixed by taking an non-Intel USB chip (either if one is on the board, or an extra PCIe card)? It has been known for at least 5 years...
  • DanNeely - Thursday, September 21, 2017 - link

    They probably used a cheaper 1x USB3.1g2 controller. A year or two ago I don't think that budget version was available yet.
  • bak0n - Thursday, September 21, 2017 - link

    I find it odd that they release it now, when the 370's are right around to corner. A bit late to the game for my taste.
  • mickulty - Thursday, September 21, 2017 - link

    The 87350D mosfets (actually "power blocks" integrating high and low sides) are actually supplied by TI - NexFET is the range that they're from.

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