Benchmarking Performance: CPU Encoding Tests

One of the interesting elements on modern processors is encoding performance. This includes encryption/decryption, as well as video transcoding from one video format to another. In the encrypt/decrypt scenario, this remains pertinent to on-the-fly encryption of sensitive data - a process by which more modern devices are leaning to for software security. Video transcoding as a tool to adjust the quality, file size and resolution of a video file has boomed in recent years, such as providing the optimum video for devices before consumption, or for game streamers who are wanting to upload the output from their video camera in real-time. As we move into live 3D video, this task will only get more strenuous, and it turns out that the performance of certain algorithms is a function of the input/output of the content.

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

7-Zip 9.2: link

One of the freeware compression tools that offers good scaling performance between processors is 7-Zip. It runs under an open-source licence, is fast, and easy to use tool for power users. We run the benchmark mode via the command line for four loops and take the output score.

Encoding: 7-Zip

WinRAR 5.40: link

For the 2017 test suite, we move to the latest version of WinRAR in our compression test. WinRAR in some quarters is more user-friendly that 7-Zip, hence its inclusion. Rather than use a benchmark mode as we did with 7-Zip, here we take a set of files representative of a generic stack (33 video files in 1.37 GB, 2834 smaller website files in 370 folders in 150 MB) of compressible and incompressible formats. The results shown are the time taken to encode the file. Due to DRAM caching, we run the test 10 times and take the average of the last five runs when the benchmark is in a steady state.

Encoding: WinRAR 5.40

AES Encoding

Algorithms using AES coding have spread far and wide as a ubiquitous tool for encryption. Again, this is another CPU limited test, and modern CPUs have special AES pathways to accelerate their performance. We often see scaling in both frequency and cores with this benchmark. We use the latest version of TrueCrypt and run its benchmark mode over 1GB of in-DRAM data. Results shown are the GB/s average of encryption and decryption.

Encoding: AES

HandBrake v1.0.2 H264 and HEVC: link

As mentioned above, video transcoding (both encode and decode) is a hot topic in performance metrics as more and more content is being created. First consideration is the standard in which the video is encoded, which can be lossless or lossy, trade performance for file-size, trade quality for file-size, or all of the above can increase encoding rates to help accelerate decoding rates. Alongside Google's favorite codec, VP9, there are two others that are taking hold: H264, the older codec, is practically everywhere and is designed to be optimized for 1080p video, and HEVC (or H265) that is aimed to provide the same quality as H264 but at a lower file-size (or better quality for the same size). HEVC is important as 4K is streamed over the air, meaning less bits need to be transferred for the same quality content.

Handbrake is a favored tool for transcoding, and so our test regime takes care of three areas.

Low Quality/Resolution H264: He we transcode a 640x266 H264 rip of a 2 hour film, and change the encoding from Main profile to High profile, using the very-fast preset.

Encoding: Handbrake H264 (LQ)

High Quality/Resolution H264: A similar test, but this time we take a ten-minute double 4K (3840x4320) file running at 60 Hz and transcode from Main to High, using the very-fast preset.

Encoding: Handbrake H264 (HQ)

HEVC Test: Using the same video in HQ, we change the resolution and codec of the original video from 4K60 in H264 into 4K60 HEVC.

Encoding: Handbrake HEVC (4K)

Benchmarking Performance: CPU Web Tests Benchmarking Performance: CPU Office Tests


View All Comments

  • CSM 2 - Friday, July 28, 2017 - link

    1200 with A320 + GTX 1050ti perfect family pc or sff media pc I'm very impressed. Thanks AMD for some competition Reply
  • slickr - Sunday, July 30, 2017 - link

    They actually are releasing their APU's at the same time, so if you want cpu+igp you can buy their new APU's. Reply
  • MajGenRelativity - Thursday, July 27, 2017 - link

    Could you add an overclocking section? I've been seeing the 1200 overclock well, and that could definitely close the gap with the i3's Reply
  • Ian Cutress - Thursday, July 27, 2017 - link

    In the plans, maybe Pt 2 next week after finishing the 1300X. Reply
  • T1beriu - Thursday, July 27, 2017 - link

    Yey! Reply
  • AndrewJacksonZA - Thursday, July 27, 2017 - link

    "M." You're missing an "m" at the end of your username, T1beriu. ;-) Reply
  • MajGenRelativity - Thursday, July 27, 2017 - link

    Awesome! I think overclocking is one of Ryzen's strong points, and it doesn't seem to drive up power consumption too much, because you can hit good clocks on stock voltage Reply
  • Oxford Guy - Thursday, July 27, 2017 - link

    Or, maybe we could see what happens without being kneecapped by the absurd JEDEC RAM setting. Reply
  • venkatsrin - Thursday, July 27, 2017 - link

    Thanks, can only second this request! Pls, pretty pls, do include the overclocked benchmarks for gaming not only with high-end cards like GTX1080 but also the RX470 that you have in there currently. Reply
  • QinX - Thursday, July 27, 2017 - link

    The Blender graph seems to be wrong for the 1300X, beating the 1500x by 500 seconds seems excessive. Reply

Log in

Don't have an account? Sign up now