ASUS Z97-DELUXE (NFC & WLC) Review: With Two Thunderbolt 2 Too
by Ian Cutress on May 16, 2014 11:00 AM EST- Posted in
- Motherboards
- Intel
- Asus
- NFC
- 802.11ac
- Thunderbolt 2
- Z97
- Wireless Charging
System Benchmarks
Rightmark Audio Analyzer 6.2.5
The premise behind Rightmark:AA is to test the input and output of the audio system to determine noise levels, range, harmonic distortion, stereo crosstalk and so forth. Rightmark:AA should indicate how well the sound system is built and isolated from electrical interference (either internally or externally). For this test we connect the Line Out to the Line In using a short six inch 3.5mm to 3.5mm high-quality jack, turn the OS speaker volume to 100%, and run the Rightmark default test suite at 192 kHz, 24-bit. The OS is tuned to 192 kHz/24-bit input and output, and the Line-In volume is adjusted until we have the best RMAA value in the mini-pretest. We look specifically at the Dynamic Range of the audio codec used on board, as well as the Total Harmonic Distortion + Noise.
Dynamic Range of the Z97-Deluxe
We had one small initial issue with our audio test on the Deluxe, causing distortion at 100% volume when the drivers off the disk were installed. The latest Realtek drivers from the ASUS website worked better, and gave some of the best audio results we have ever seen in our RMAA test.
USB Backup
For this benchmark, we run CrystalDiskMark to determine the ideal sequential read and write speeds for the USB port using our 240 GB OCZ Vertex3 SSD with a SATA 6 Gbps to USB 3.0 converter. Then we transfer a set size of files from the SSD to the USB drive using DiskBench, which monitors the time taken to transfer. The files transferred are a 1.52 GB set of 2867 files across 320 folders – 95% of these files are small typical website files, and the rest (90% of the size) are the videos used in the WinRAR test. In an update to pre-Z87 testing, we also run MaxCPU to load up one of the threads during the test which improves general performance up to 15% by causing all the internal pathways to run at full speed.
USB 2.0 performance with the Turbo mode activated did a good job with around a 10% time saving in the copy test. USB 3.0 gave a smaller increase, and judging by our current USB 3.0 tests on Z97, is a slight regression from Z87.
DPC Latency
Deferred Procedure Call latency is a way in which Windows handles interrupt servicing. In order to wait for a processor to acknowledge the request, the system will queue all interrupt requests by priority. Critical interrupts will be handled as soon as possible, whereas lesser priority requests, such as audio, will be further down the line. So if the audio device requires data, it will have to wait until the request is processed before the buffer is filled. If the device drivers of higher priority components in a system are poorly implemented, this can cause delays in request scheduling and process time, resulting in an empty audio buffer – this leads to characteristic audible pauses, pops and clicks. Having a bigger buffer and correctly implemented system drivers obviously helps in this regard. The DPC latency checker measures how much time is processing DPCs from driver invocation – the lower the value will result in better audio transfer at smaller buffer sizes. Results are measured in microseconds and taken as the peak latency while cycling through a series of short HD videos - less than 500 microseconds usually gets the green light, but the lower the better.
If there was one specific feature to fix from the 8-series motherboards, it was DPC Latency. Every Z87 motherboard we tested scored 150 microseconds or up (except for one at ~140). Like the UD5H, the Z97-Deluxe continues a good trend of below 100 microsecond results for Z97.
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45 Comments
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Pri - Friday, May 16, 2014 - link
Was this a real review or just an overview? No testing of its AC WiFi, NFC, Wireless Charging or Thunderbolt 2. All the main features of this board that differentiate it from other boards.You give us a graph that shows us DPC Latency, very few people even know what that is but don't test the Thunderbolt 2 add-in cards performance its WiFi performance or if the NFC accessory works properly?
Usually I applaud your reviews but this is really poor.
Ian Cutress - Friday, May 16, 2014 - link
Yes, it is a full review. The benchmark results take a good 30-40 hours alone, along with a proper spectrum of overclocking tests and writing 10k+ words going through all the BIOS and software features.DPC Latency takes less than a minute to test and I often get emails glad that I do so from the users who find it relevant. I have added a description next to the benchmark results in case people do not know what DPC Latency is or why it matters.
As stated in the review, this motherboard is available as a stand-alone ($290) or as the combination with the WLC/NFC/TB2 ($400). I don't have the facilities to test most of what you ask, which is solely for the $400 version and my conclusion is split accordingly to both versions. I have an AC router but being in a central London location surrounded by APs makes my results inconsistent. As mentioned in the review, I have no Wireless Charging or TB2 devices, given that like all editors at AT I work from home and not in a central office because we are dotted around the world.
If you have constructive criticism, please feel free to email me. I am always open to suggestions.
Pri - Friday, May 16, 2014 - link
I must apolagize for questioning if this was a real review. I know it must have taken considerable time to write what was in the review as it is.I was merely disappointed at not seeing the accessories that come with the board tested as the Thunderbolt 2 card was of most interest to me with it being quite new. For example I would have liked for it to have been tested with a dedicated graphics card.
I was unaware that the editors for the site work from home with only the hardware they have available at their own expense, I was under the incorrect impression that the editors on the site are paid employees working from offices, this is based on my own ignorance.
Please accept my sincere apologies for the curt way I dismissed the review as an overview, it clearly is a review that you put a lot of work in to.
Ian Cutress - Friday, May 16, 2014 - link
Hi Pri, no worries. If I had the equipment in to test I would do for sure, that's the way AnandTech works. If any time you have a question about our testing or suggestions, shoot me an email (click my name up top), a number of people do :)-Ian
sajara - Friday, May 16, 2014 - link
Yep I have to second this too. Maybe a follow up of the features in the near future, Ian?sajara - Friday, May 16, 2014 - link
this commentary is rubbish i don't know how i missed a full page of the review, but that what has occurred. Apologies to Ian.DanNeely - Friday, May 16, 2014 - link
My first thought is that at the $400 price point, a PLX instead of toggling features on/off should be mandatory. Picking and choosing what to actually use on an inexpensive feature grab bag board is justifiable to keep the cost down; but this board is priced as luxury item and shouldn't be loaded down with obnoxious gotchas and limitations.Something else I'm wondering is why two different Intel NIC controllers instead of either 2 of the same model or one Intel controller and a second from a low cost vendor.
PixyMisa - Saturday, May 17, 2014 - link
Exactly my thought. On a low-end board that would be a no-go for me; on a top-of-the-line board it's just unacceptable.I'm very glad I read this review, though, because I was considering buying this exact board.
munkle - Friday, May 16, 2014 - link
I'm confused on whether this has a plx chip or not? Your review states it doesn't, Hardocp's review states it uses PLX PEX8747, the pictures of the motherboard would make me assume that it does use the chip as only this mobo and the WS mobo have that center heatsink and you state the WS mobo uses a plx chip.Ian Cutress - Friday, May 16, 2014 - link
A quick look at the specifications on the website shows:"2 x PCIe 3.0/2.0 x16 (x16 or dual x8)"
With this, and the fact that we can account for all the chipset lanes including the switches, dictates that no PLX chip is present. Without doing a quick headcount of PCIe lane allocation, one could be fooled by the heatsink in the middle of the board.
That and the fact that ASUS has said that the PLX8747 variant for Z97 is limited to the WS motherboard for now.