CPU Performance: Encoding Tests

With the rise of streaming, vlogs, and video content as a whole, encoding and transcoding tests are becoming ever more important. Not only are more home users and gamers needing to convert video files into something more manageable, for streaming or archival purposes, but the servers that manage the output also manage around data and log files with compression and decompression. Our encoding tasks are focused around these important scenarios, with input from the community for the best implementation of real-world testing.

All of our benchmark results can also be found in our benchmark engine, Bench.

Handbrake 1.1.0: Streaming and Archival Video Transcoding

A popular open source tool, Handbrake is the anything-to-anything video conversion software that a number of people use as a reference point. The danger is always on version numbers and optimization, for example the latest versions of the software can take advantage of AVX-512 and OpenCL to accelerate certain types of transcoding and algorithms. The version we use here is a pure CPU play, with common transcoding variations.

We have split Handbrake up into several tests, using a Logitech C920 1080p60 native webcam recording (essentially a streamer recording), and convert them into two types of streaming formats and one for archival. The output settings used are:

  • 720p60 at 6000 kbps constant bit rate, fast setting, high profile
  • 1080p60 at 3500 kbps constant bit rate, faster setting, main profile
  • 1080p60 HEVC at 3500 kbps variable bit rate, fast setting, main profile

Handbrake 1.1.0 - 720p60 x264 6000 kbps FastHandbrake 1.1.0 - 1080p60 x264 3500 kbps FasterHandbrake 1.1.0 - 1080p60 HEVC 3500 kbps Fast

7-zip v1805: Popular Open-Source Encoding Engine

Out of our compression/decompression tool tests, 7-zip is the most requested and comes with a built-in benchmark. For our test suite, we’ve pulled the latest version of the software and we run the benchmark from the command line, reporting the compression, decompression, and a combined score.

It is noted in this benchmark that the latest multi-die processors have very bi-modal performance between compression and decompression, performing well in one and badly in the other. There are also discussions around how the Windows Scheduler is implementing every thread. As we get more results, it will be interesting to see how this plays out.

Please note, if you plan to share out the Compression graph, please include the Decompression one. Otherwise you’re only presenting half a picture.

7-Zip 1805 Compression7-Zip 1805 Decompression7-Zip 1805 Combined

WinRAR 5.60b3: Archiving Tool

My compression tool of choice is often WinRAR, having been one of the first tools a number of my generation used over two decades ago. The interface has not changed much, although the integration with Windows right click commands is always a plus. It has no in-built test, so we run a compression over a set directory containing over thirty 60-second video files and 2000 small web-based files at a normal compression rate.

WinRAR is variable threaded but also susceptible to caching, so in our test we run it 10 times and take the average of the last five, leaving the test purely for raw CPU compute performance.

WinRAR 5.60b3

AES Encryption: File Security

A number of platforms, particularly mobile devices, are now offering encryption by default with file systems in order to protect the contents. Windows based devices have these options as well, often applied by BitLocker or third-party software. In our AES encryption test, we used the discontinued TrueCrypt for its built-in benchmark, which tests several encryption algorithms directly in memory.

The data we take for this test is the combined AES encrypt/decrypt performance, measured in gigabytes per second. The software does use AES commands for processors that offer hardware selection, however not AVX-512.

AES Encoding

CPU Performance: Office Tests CPU Performance: Web and Legacy Tests
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  • evernessince - Saturday, October 20, 2018 - link

    I'm sure for him money is a fixed resource, he is just really bad at managing it. You'd have to be crazy to blow money on the 9900K when the 8700K is $200 cheaper and the 2700X is half the price.
  • Dug - Monday, October 22, 2018 - link

    Relative to how much you make or have. $200 isn't some life threatening amount that makes them crazy because they spent it on a product that they will enjoy. We spend more than that going out for a weekend (and usually don't have anything to show for it). If an extra 200 is threatening to your lively hood, you shouldn't be shopping for new cpu's anyway.
  • close - Saturday, October 20, 2018 - link

    @ekidhardt: "I think far too much emphasis has been placed on 'value'. I simply want the fastest, most powerful CPU that isn't priced absurdly high."

    That, my good man, is the very definition of value. It happens automatically when you decide to take price into consideration the price. I also don't care about value, I just want a CPU with a good performance to price ratio. See what I did there? :)
  • evernessince - Saturday, October 20, 2018 - link

    A little bit extra? It's $200 more then the 8700K, that's not a little.
  • mapesdhs - Sunday, October 21, 2018 - link


    The key point being, for gaming, use the difference to buy a better GPU, whether one gets an 8700K or 2700X (or indeed any one of a plethora of options really, right back to an old 4930K). It's only at 1080p and high refresh rates where strong CPU performance stands out, something DX12 should help more with as time goes by (the obsession with high refresh rates is amusing given NVIDIA's focus shift back to sub-60Hz being touted once more as ok). For gaming at 1440p or higher, one can get a faster system by choosing a cheaper CPU and better GPU.

    There are two exceptions: those for whom money is literally no object, and certain production workloads that still favour frequency/IPC and are not yet well optimised for more than 6 cores (Premiere is probably the best example). Someone mentioned pro tasks being irrelevant because ECC is not supported, but many solo pros can't afford XEON class hw (I mean the proper dual socket setups) even if the initial higher outlay would eventually pay for itself.

    What we're going to see with the 9900K for gaming is a small minority of people taking Intel's mantra of "the best" and running with it. Technically, they're correct, but most normal people have budgets and other expenses to consider, including wives/gfs with their own cost tolerance limits. :D

    If someone can genuinely afford it then who cares, in the end it's their money, but as a choice for gaming it really only makes sense via the same rationale if they've also then bought a 2080 Ti to go with it, though even there one could retort that two used 1080 TIs would be cheaper & faster (at least for those titles where SLI is functional).

    If anything good has come from this and the RTX launch, it's the move away from the supposed social benefit of having "the best"; the street cred is gone, now it just makes one look like a fool who was easily parted from his money.
  • Spunjji - Monday, October 22, 2018 - link

    Word.
  • Total Meltdowner - Sunday, October 21, 2018 - link

    This comment reads like shilling so hard. So hard. Please try harder to not be so obvious.
  • Spunjji - Monday, October 22, 2018 - link

    I think they placed just the right amount of emphasis on "value". Your post basically explains why it's not relevant for you in terms of you being an Intel fanboy with cash to burn. I'll elaborate.

    The MSRP is in the realm of irrational spending for a huge number of people. "Rational" here meaning "do I get out anything like what I put in", wherein the answer in all metrics is an obvious no.

    Following that, there are a HUGE number of reasons not to pre-order a high-end CPU, especially before proper results are out. Pre-ordering *anything* computer related is a dubious prospect, doubly so when the company selling it paid good money to paint a deceptive picture of their product's performance.

    Your assertion that Intel have never launched a bad CPU is false and either ignorance or wilful bias on your part. They have launched a whole bunch of terrible CPUs, from the P3 1.2Ghz that never worked, through the P4 Emergency Edition and the early "dual-core" P4 processors, all the way through to this i9 9900K which is the thirstiest "95W" CPU I've ever seen. Their notebook CPUs are now segregated in such a way that you have to read a review to find out how they will perform, because so much is left on the table in terms of achievable turbo boost limits.

    Sorry, I know I replied just to disagree which may seem argumentative, but you posted a bunch of nonsense and half-turths passed off as common-sense and/or logic. It's just bias; none of it does any harm but you could at least be up-front that you prefer Intel. That in itself (I like Intel and am happy to spend top dollar) is a perfectly legitimate reason for everything you did. Just be open and don't actively mislead people who know less than you do.
  • chris.london - Friday, October 19, 2018 - link

    Hey Ryan. Thanks for the review.

    Would it be possible to check power consumption in a test in which the 2700x and 9900k perform similarly (maybe in a game)? POV-Ray seems like a good way to test for maximum power draw but it makes the 9900k look extremely inefficient (especially compared to the 9600k). It would be lovely to have another reference point.
  • 0ldman79 - Friday, October 19, 2018 - link

    I'm legitimately surprised.

    The 9900k is starving for bandwidth, needs more cache or something. I never expected it to *not* win the CPU benchmarks vs the 9700k. I honestly expected the 9700k to be the odd one out, more expensive than the i5 and slower than the 9900k. This isn't the case. Apparently SMT isn't enabling 100% usage of the CPU's resources, it is allowing a bottleneck due to fighting over resources. I'd love to see the 9900K run against it's brethren with HT disabled.

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