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

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 Combined Score

Encoding: 7-Zip Compression

Encoding: 7-Zip Decompression

Again, trading blows with the 8700K, but falling behind a little bit.

WinRAR 5.40

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

The 8086K takes another benchmark sitting behind the 8700K.

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

Under AES encoding we get literally identical results.

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: Here 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 Rendering Tests Benchmarking Performance: CPU Office Tests
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  • Namisecond - Monday, July 9, 2018 - link

    There are plenty of computers with K series CPUs that are run at stock. Only people who assemble their own computers from components would even consider overclocking their K-series CPUs. I personally have a 4790K and a 7700K running at stock clocks and I built both those systems from scratch. Reply
  • mr_tawan - Monday, June 11, 2018 - link

    My AMD Athlon XP 1600+ didn't come with a heat sink ... Reply
  • owan - Monday, June 11, 2018 - link

    Almost anyone dropping $425 on a chip is prepared to shell out another $100 for a CLC. They are very common in this market segment, and I think acting like its some kind of grave injustice against AMD that a CLC is being used is just asinine. Reply
  • jklw10 - Monday, June 11, 2018 - link

    Using intel stock cooler absolutely fucking idiotic... You know intel is the scumbag company that want to get maximal profits. Hence the toothpaste on the die and a cactus for a thermal solution Reply
  • AutomaticTaco - Monday, June 11, 2018 - link

    Every business is about profit. It is how they stay in business. You choose to make a purchase or not. Their selection of thermal compound matches the rating of the processor. The choice to simple sell a processor is fine with me. If you don't like the processor or them just buy something else. Simple enough. Your level of hatred for them is ridiculous. Simply buy an AMD or build otherwise. Reply
  • mkaibear - Tuesday, June 12, 2018 - link

    Yeah, apart from the fact that the "toothpaste" on the die avoids all the problems with solder and alternative TIMs and works sufficiently for the processor to perform as advertised at the speed they specify within the temperature range they specify, and the thermal solution works well enough for people who don't overclock.

    So basically Intel states precisely what they say they will provide, then provides it, and apparently that makes them a "scumbag company that want to get maximal profits" (as if any company doesn't want to get maximal profits...)

    Get a grip.
    Reply
  • Alexvrb - Tuesday, June 12, 2018 - link

    WHAT problems with solder? It was a cost-cutting measure, and anyone who claims otherwise is either a shill or a fanboy. That doesn't even address the fact that potential issues with "alternative TIMs" can apply to Intel's compound too. There's plenty of good pastes out there with excellent longevity and better thermal performance. They're more expensive.

    With that being said Intel's current crop of processors have enough headroom compared to their competition that they simply do not care to improve. When and if AMD's future Zen iterations are able to clock aggressively, at that point Intel will start thinking about switching back to solder (at least on their unlocked higher-end chips).
    Reply
  • Oxford Guy - Thursday, June 14, 2018 - link

    Correctly formulated typical solder may have a cracking issue under the stress of liquid nitrogen cooling. For water and air cooling it won't. So, for "real world" cooling, "all the problems with solder" comes down to only faulty formulations — like the formulation Nvidia used in a mobile GPU line that led to widespread premature failure throughout the industry (and, of course, no recalls). Reply
  • Oxford Guy - Thursday, June 14, 2018 - link

    "avoids all the problems with solder"

    Oh, boy, the liquid nitrogen bogeyman.
    Reply
  • Death666Angel - Monday, June 11, 2018 - link

    That would be a review of the cooler, not the CPU. And anyone buying a 400+USD CPU should invest in a decent cooler as well, that is just common sense. Reply

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