Test Results & Conclusion
Test System Components
We're using our standardized test system, minus its LGA 2011 motherboard, CPU and DDR4-2400, to measure the performance of every LGA 1151 test board. Replacements for those parts include today's Fatal1ty Z170 Gaming-ITX/ac motherboard, Intel's Core i7-6700K, and G.Skill's overclockable Ripjaws V DDR4-3600.
|Chipset||Intel INF 10.0.27|
|3DMark 11||Version: 220.127.116.11, Benchmark Only|
|3DMark Professional||Version: 18.104.22.168 (64-bit), Fire Strike Benchmark|
|PCMark 8||Version: 1.0.0 x64, Full Test|
|SiSoftware Sandra||Version 2014.02.20.10, CPU Test = CPU Arithmetic / Multimedia / Cryptography, Memory Bandwidth Benchmarks|
|Battlefield 4||Version 22.214.171.124, DirectX 11, 100-sec. Fraps "Tashgar"Test Set 1: Medium Quality Preset, No AA, 4X AF, SSAOTest Set 2: Ultra Quality Preset, 4X MSAA, 16X AF, HBAO|
|Grid 2||Version 126.96.36.19979, Direct X 11, Built-in BenchmarkTest Set 1: High Quality, No AATest Set 2: Ultra Quality, 8x MSAA|
|Arma 3||Version 1.08.113494, 30-Sec. Fraps "Infantry Showcase"Test Set 1: Standard Preset, No AA, Standard AFTest Set 2: Ultra Preset, 8x FSAA, Ultra AF|
|Far Cry 3||V. 1.04, DirectX 11, 50-sec. Fraps "Amanaki Outpost"Test Set 1: High Quality, No AA, Standard ATC, SSAOTest Set 2: Ultra Quality, 4x MSAA, Enhanced ATC, HDAO|
|Adobe After Effects CC||Version 188.8.131.524: Create Video which includes 3 Streams, 210 Frames, Render Multiple Frames Simultaneosly|
|Adobe Photoshop CC||Version 14.0 x64: Filter 15.7MB TIF Image: Radial Blur, Shape Blur, Median, Polar Coordinates|
|Adobe Premeire Pro CC||Version 7.0.0 (342), 6.61 GB MXF Project to H.264 to H.264 Blu-ray, Output 1920x1080, Maximum Quality|
|iTunes||Version 184.108.40.206 x64: Audio CD (Terminator II SE), 53 minutes, default AAC format|
|Lame MP3||Version 3.98.3: Audio CD "Terminator II SE", 53 min, convert WAV to MP3 audio format, Command: -b 160 --nores (160 kb/s)|
|Handbrake CLI||Version: 0.99: Video from Canon Eos 7D (1920x1080, 25 FPS) 1 Minutes 22 SecondsAudio: PCM-S16, 48000 Hz, 2-Channel, to Video: AVC1 Audio: AAC (High Profile)|
|TotalCodeStudio 2.5||Version: 220.127.116.1177: MPEG-2 to H.264, MainConcept H.264/AVC Codec, 28 sec HDTV 1920x1080 (MPEG-2), Audio: MPEG-2 (44.1 kHz, 2 Channel, 16-Bit, 224 kb/s), Codec: H.264 Pro, Mode: PAL 50i (25 FPS), Profile: H.264 BD HDMV|
|ABBYY FineReader||Version 10.0.102.95: Read PDF save to Doc, Source: Political Economy (J. Broadhurst 1842) 111 Pages|
|Adobe Acrobat 11||Version 18.104.22.1689: Print PDF from 115 Page PowerPoint, 128-bit RC4 Encryption|
|Autodesk 3ds Max 2013||Version 15.0 x64: Space Flyby Mentalray, 248 Frames, 1440x1080|
|Blender||Version: 2.68A, Cycles Engine, Syntax blender -b thg.blend -f 1, 1920x1080, 8x Anti-Aliasing, Render THG.blend frame 1|
|Visual Studio 2010||Version 10.0, Compile Google Chrome, Scripted|
|WinZip||Version 18.0 Pro: THG-Workload (1.3 GB) to ZIP, command line switches "-a -ez -p -r"|
|WinRAR||Version 5.0: THG-Workload (1.3 GB) to RAR, command line switches "winrar a -r -m3"|
|7-Zip||Version 9.30 alpha (64-bit): THG-Workload (1.3 GB) to .7z, command line switches "a -t7z -r -m0=LZMA2 -mx=5"|
ASRock Z170 Extreme6
MSI Z170A Gaming M5
Benchmarks, Power, Heat And Efficiency
Having only two DIMM slots, ASRock's Fatal1ty Z170 Gaming-ITX/ac supports only half of our four-DIMM 16GB memory kit. That reduction in memory capacity shouldn't have much effect in synthetics or games, but there are a few timed applications that "need" more than 8GB.
Synthetic Benchmark Results
The Z170 Gaming-ITX/ac comes up a little short in SiSoftware Sandra Memory Bandwidth, which in turn reduces its Cryptography score. The difference between two and four DIMMs in dual-channel does not account for this bandwidth difference, but latency does impact the rate of sends and receives, thus it appears that the board's automatic timing configuration is a little worse than average.
As expected, the Z170 Gaming-ITX/ac had no performance deficit in games, and often places first or second in this tight race.
Poor results in Adobe After Effects are a direct result of the Z170 Gaming-ITX/ac supporting only half as many memory modules as its competitors. I could have swapped-in some higher-density modules, but that would have impacted latency. I could have re-tested all the boards with only two modules, but that would have been a very lengthy process. Instead, I'm looking forward to using this as a baseline when testing future 2-DIMM motherboards.
Power, Heat And Efficiency
ASRock's Fatal1ty Z170 Gaming-ITX/ac has the second-lowest power draw of any Z170 motherboard tested, but that might not put it in second place for efficiency due to a couple stumbles in memory-heavy benchmarks.
While the Z170 Gaming-ITX/ac placed second on the above chart, a previously-tested "out of range" board from Super Micro placed slightly higher among the boards that aren't shown.
Overclocking And Final Thoughts
It's not like you're getting more overclocking for what you're giving up to the smaller form factor, as ASRock's own Z170 Extreme6 provides far more features for far larger cases with the same CPU overclocking capability and price.
On the other hand, maximum stable DRAM data rate is the most painful thing to spot in the overclocking charts. The Z170 Gaming-ITX/ac's DDR4-3200 falls behind the same manufacturer's DDR4-3501 in the Z170 Extreme6. Worse still, that lower data rate comes even after a month or so of firmware improvements for the smaller board.
It's not as if ASRock is sacrificing overclocking ability in order to achieve tighter timings, either. The Fatal1ty Z170 Gaming-ITX/ac produces similar "overclocked bandwidth" to its larger sibling, both boards falling noticeably behind the DDR4-3400-capable MSI Z170A Gaming M5.
Yet size might be one of the reasons for the Mini ITX motherboard's lesser DRAM overclocking, as a shorter distance to the CPU interface can force designers to make unfortunate compromises in trace layout. A quick look reveals that the CPU is off-center to the DIMMs, for example, and there’s no room for fancy pathway manipulation that could mitigate differences in trace length.
CPU overclocking is still more important to most applications, and the Fatal1ty Z170 Gaming-ITX/ac performed flawlessly in that regard in spite of its compact voltage regulator. But is it a good value?
You'll certainly get far less hardware in this Mini ITX board compared to a larger part such as ASRock's Z170 Extreme6, yet most compact PC builders have come to expect that they'll get less board for the same money. Perhaps they can excuse this disparity by pointing to similar development costs and lower shipping volume? All we know is that the Fatal1ty Z170 Gaming-ITX/ac costs about as much as the majority of similarly-defined competitors and, lacking any serious problems or deficiencies, that makes it worth our stamp of approval.