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
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  • Teknobug - Friday, July 28, 2017 - link

    Guess the Rzyen 3 1300X isn't much of an upgrade over my other PC which is i5 3550 (OC'd to 3.9GHz) system then. Reply
  • jamyryals - Friday, July 28, 2017 - link

    It's great to have some competition going on again! Reply
  • Mumrik - Friday, July 28, 2017 - link

    If you run a 0% line horizontally through a graph like you do on page 17, and especially if it actually moves around a bit from graph to graph, I'd suggest making that line thicker than the others. Reply
  • harobikes333 - Saturday, July 29, 2017 - link

    AMD pretty much has all the CPU segments covered <3
    Planning on a build soon!
    Reply
  • LostPassword - Sunday, July 30, 2017 - link

    i know a lot of people will say it doesn't matter. but the beauty about these ryzen 3 is that they are unlocked. i see alot of youtubers hit 3.7-3.8ghz on stock cooler. Reply
  • Oxford Guy - Wednesday, August 02, 2017 - link

    Tom's Hardware used 3200 RAM for its review. I suggest reading that one because it paints a different picture than this one which uses slow RAM. Reply
  • Mugur - Thursday, August 03, 2017 - link

    I think the author missed the point with this review: Ryzen 3 is obviously targeted towards gaming to a very tight budget, not B2B, not Enterprise, not Office, etc...

    Of course, this doesn't mean that certain cpu benchmarks shouldn't be used, but the test bed should definitely include overclocking (using the included Stealth cooler) and 3200 Mhz RAM (I wonder about AGESA 1006?). I don't care as much for "normalizing" benchmarks and Anandtech bench (a useful tool though), but just make me see how those 2 cpus are performing in the kind of environment they will be used. And add 2 entry level cards like RX 560 and GTX 1050/Ti; I know the reason about using a high end graphics card and I agree on paper, but this is not how those cpus will be used. It's an academical exercise.

    Not everything should be a PhD dissertation, especially for this low level, budget components. If I have to reconmmend someone a cheap gaming machine I need to know whether a Ryzen 1200@3.9 Ghz + 8 GB 3200 DDR4 + RX 560 4 GB is a viable option (or not), better than a G4560 + 8 GB 2400 + GTX 1050 for example, especially in the long run.
    Reply
  • Oxford Guy - Friday, August 11, 2017 - link

    Worrying about RAM speed when you're using a low-grade GPU is unwise. You'll be very GPU-limited most of the time.

    No, what this review needed was 3200 RAM plus relevant GPUs. At the very least the 3000 speed RAM in the machine they tested with shouldn't have been heavily downclocked.
    Reply
  • chiname - Saturday, November 18, 2017 - link

    This actually depends on where you live.I did a pc a week ago.It's just an small entry level pc for kids to play some games.The price to performance was favoring AMD.I really wouldve liked to get an intel i3 7100 but the cost was higher than the 1200 amd.So hench we went with amd.

    Complete amd pc cost 6.5k include gfx card.intel wouldve cost us over 8k.
    Reply
  • John_M - Sunday, April 29, 2018 - link

    "We’re still working through our gaming testing as this review goes live, and we’ll add graphs for that in a bit."

    I've read that so often on this site but the promise is seldom fulfilled.
    Reply

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