The Intel NUC6i5SYK Skylake UCFF PC Review
by Ganesh T S on March 11, 2016 8:00 AM ESTPerformance Metrics - II
In this section, we mainly look at benchmark modes in programs used on a day-to-day basis, i.e, application performance and not synthetic workloads.
x264 Benchmark
First off, we have some video encoding benchmarks courtesy of x264 HD Benchmark v5.0. This is simply a test of CPU performance. As expected, the 35W TDP Core i3-6100T and the 28W TDP Core i5-5557U take the lead over the 15W Core i5-6260U.
7-Zip
7-Zip is a very effective and efficient compression program, often beating out OpenCL accelerated commercial programs in benchmarks even while using just the CPU power. 7-Zip has a benchmarking program that provides tons of details regarding the underlying CPU's efficiency. In this subsection, we are interested in the compression and decompression MIPS ratings when utilizing all the available threads.
TrueCrypt
As businesses (and even home consumers) become more security conscious, the importance of encryption can't be overstated. CPUs supporting the AES-NI instruction for accelerating the encryption and decryption processes used to be restricted to high-end SKUs. That has changed now, and even the consumer-focused Core i5-6260U in the NUC6i5SYK has AES-NI support. TrueCrypt, a popular open-source disk encryption program can take advantage of the AES-NI capabilities. The TrueCrypt internal benchmark provides some interesting cryptography-related numbers to ponder. In the graph below, we can get an idea of how fast a TrueCrypt volume would behave in the Intel NUC6i5SYK and how it would compare with other select PCs. This is a purely CPU feature / clock speed based test.
Agisoft Photoscan
Agisoft PhotoScan is a commercial program that converts 2D images into 3D point maps, meshes and textures. The program designers sent us a command line version in order to evaluate the efficiency of various systems that go under our review scanner. The command line version has two benchmark modes, one using the CPU and the other using both the CPU and GPU (via OpenCL). The benchmark takes around 50 photographs and does four stages of computation:
- Stage 1: Align Photographs
- Stage 2: Build Point Cloud (capable of OpenCL acceleration)
- Stage 3: Build Mesh
- Stage 4: Build Textures
We record the time taken for each stage. Since various elements of the software are single threaded, others multithreaded, and some use GPUs, it is interesting to record the effects of CPU generations, speeds, number of cores, DRAM parameters and the GPU using this software.
Bringing the GPU into the picture helps the NUC6i5SYK to emerge as the Stage 2 leader, but, in other stages, the raw CPU performance is held back by the lower TDP compared to some of the other PCs in the comparison list.
Dolphin Emulator
Wrapping up our application benchmark numbers is the Dolphin Emulator benchmark mode results. This is again a test of the CPU capabilities, and the higher TDP CPUs perform better.
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ganeshts - Friday, March 11, 2016 - link
Hmm.. I haven't seen anyone use 'til now'.But, 'till date' is definitely common where I grew up / learned English: http://english.stackexchange.com/questions/146767/... ; It might not be the best thing to use in other parts of the world, but it is not wrong.
kmo12345 - Saturday, March 12, 2016 - link
I noticed this as well.I also disagree with your statement that it is not wrong. I don't doubt that it has entered common usage in Indian English but I have never heard or seen this phrase in the UK, North America, or even Latin America. So while it may be correct in Indian English it is incorrect in any other forms of English.
nivedita - Sunday, March 13, 2016 - link
The dictionary disagrees with you.http://www.oxforddictionaries.com/us/definition/en...
gietrzy - Friday, March 11, 2016 - link
Can you please point me to Intel white papers pdf where they say m.2 in Skylake can do more than 1600 MB/s?Tia.
ganeshts - Friday, March 11, 2016 - link
Sunrise Point-LP has PCIe 3.0 lanes, and the M.2 slot uses four of them. All I can say is that, with the appropriate M.2 SSD, you can utilize four PCIe 3.0 lanes' bandwidth.jdogi74 - Saturday, March 12, 2016 - link
Sorry, but you sound like a politician. Isn't there some contact at Intel that can provide some reasoning and confirmation for this limit or has Anandtech lost all of it's industry clout?jdogi74 - Saturday, March 12, 2016 - link
I completely agree. It's a shame that this review did not address this issue. Really, it's the only thing I came to this review hoping to learn. I have seen reports from users indicating that the M.2 on these is, for some reason, capped at 1600MB/s.This review states... "full support for PCIe 3.0 x4 M.2 SSDs"... yet there's obviously some other factor that prevents these units from getting the most out of it. Given that, I would expect a review on this site to cover it and at least investigate and explain this limitation so that the readers get a better understanding of when PCIe 3.0 x4 really is PCIe 3.0 x4 and when it's not.
Can anyone explain why this alleged PCIe 3.0 x4 essentially perfoms as if it were PCIE 2.0 x4 or PCIe 3.0 x2.
Really.
jdogi74 - Saturday, March 12, 2016 - link
Sorry, I should also mention that Intel's own specs on these also confirm this 1600MB/s limit. So we know it's there. I just want to understand how it's PCIe 3.0 x4 but then it isn't.ganeshts - Sunday, March 13, 2016 - link
I benchmarked both the SM951 and 950 PRO NVMe SSDs, and the best-case bandwidth (large sequential reads) is around 1710 MBps for both.I have asked my Intel contact for the reason behind this, and I will either update things in this comments thread, or have a separate pipeline piece (depending on the depth of Intel's reply).
TheinsanegamerN - Friday, March 11, 2016 - link
Does this NUC have the ability to up te TDP, like haswell iris NUCs could (going from 15 to 28 watt, allowing both higher boost clocks and longer periods of sustained clock speeds.)?And has intel said anything about the skull canyon NUC, with the GT4e GPU?