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.

7-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: Rendering Tests CPU Performance: Web and Legacy Tests
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  • ksec - Thursday, May 7, 2020 - link

    It was only yday I asked on forum what is happening to Intel 7nm CPU. We know Tiger Lake is coming, then there is Alderlake. And that is it.

    Again, despite all these, AMD needs to "sell" better. The results from their quarterly report are no way near good enough.
  • outsideloop - Thursday, May 7, 2020 - link

    Hardware Unboxed includes the 9th Gen i3 and i5 parts against these new Ryzens, in their testing.
  • CrystalCowboy - Thursday, May 7, 2020 - link

    About the test setup: No PCIe 4.0 graphics cards. No PCIe 4.0 NVME SSD. You are handicapping these CPUs by not letting them take full advantage of their features. If an older or lesser CPU cannot support these features, well then it deserves to score lower for it. You did use DDR4-3200 RAM, thanks for that.
  • Ian Cutress - Thursday, May 7, 2020 - link

    Users with a $99 CPU are going to use a PCIe 4.0 SSD? really?
    How do I keep the storage element consistent between tests then, to make sure I'm actually testing the CPU? How do I keep that storage constant for CPUs 10 years ago?
  • Makaveli - Thursday, May 7, 2020 - link

    Yup Ian,

    That complaint is ridiculous, almost no one is going PCIe 4 storage in a budget build.

  • MDD1963 - Thursday, May 7, 2020 - link

    can't wait for a water block equipped X570 for $800 and the R3-3100 to get the best OC's possible with muh PCI-e 4.0 storage......!!!! :) (Who cares if PCI-e 4.0 drives sometimes fare 1-3% worse than the 970 EVO in some real world comparisons!)
  • eastcoast_pete - Friday, May 8, 2020 - link

    Maybe it's because after buying a PCIe 4 capable MB and a PCIe 4 SSD, I wouldn't have any money left to buy a CPU for more than $ 100? Kidding, of course, this challenge makes no sense.
    That aside, it would be interesting to see what kind of CPU can actually make good use of PCIe 4 capable MBs and fast storage.
  • Deicidium369 - Friday, May 8, 2020 - link

    $500 Car w/ $10,000 rims
  • MDD1963 - Thursday, May 7, 2020 - link

    Yes, PCI-e 4.0 SSDs would have help *so much* on ... gaming frame rates.... <exaggerated overtly obvious eye roll> :)
  • eastcoast_pete - Thursday, May 7, 2020 - link

    Thanks Ian! If possible, please add some performance numbers for the current i3 and i5 in. Right now, AMD owns the below $200 space for desktop CPUs. Also, data from other websites that had some i5-9100 on hand show that the 3100 A.K.A AMD's leftover dies, are outperforming Intel's offerings here.
    Really hope Intel steps up, and soon. I'm hoping to buy something later this year, so whoever gives me the most bang for my buck gets my money.

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