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.

7-Zip 

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

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 H264 and HEVC

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 1080p30 HEVC. This causes a dramatic reduction in filesize.

Encoding: Handbrake HEVC (4K)

 

Benchmarking Performance: CPU Web Tests Benchmarking Performance: CPU Office Tests
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  • mapesdhs - Sunday, March 5, 2017 - link

    If you have a Q6600, I can understand that, but the QX9650 ain't too bad. ;)
  • Marburg U - Monday, March 6, 2017 - link

    I'm on a Q9550 running at 3.8 for the past 6 years. I could still run modern games at 1050p, with a r9 270x, but that's the best i can squeeze out of it. Mind that i'm still on DDR2 (my motherboard turns 10 in a few months). I really want to embrace a ultra wide monitor.
  • mapesdhs - Monday, March 6, 2017 - link

    Moving up to 2560x1440 may indeed benefit from faster RAM, but it probably depends on the game. Likewise, CPU dependencies vary, and they can lessen at higher resolutions, though this isn't always the case. Still, good point about DDR2 there. To what kind of GPU were you thinking of upgrading? Highend like 1080 Ti? Mid-range? Used GTX 980s are a good deal these days, and a bunch of used 980 Tis will likely hit the market shortly. I've tested 980 SLI with older platforms, actually not too bad, though I've not done tests with my QX9650 yet, started off at the low end to get through the pain. :D (P4/3.4 on an ASUS Striker II Extreme, it's almost embarassing)

    Ian.
  • Meditari - Monday, March 6, 2017 - link

    I'm actually using a Q9550 that's running at 3.8 as well. I have a 980ti and it can do 4k, albeit at 25-30fps in newer games like Witcher 3. Fairly certain a 1080ti would work great with a Q9550, but I feel like the time for these chips is coming to an end. Still incredible that a 8 year old chip can still hold it's own by just upgrading the GPU
  • mapesdhs - Tuesday, March 7, 2017 - link

    Intriguing! Many people don't even try to use such a card on an older mbd, they just assume from sites reviews that it's not worth doing. Can you run 3DMark11/13? What results do you get? You won't be able to cite the URLs here directly, but you can mention the submission numbers and I can compare them to my 980 Ti running on newer CPUs (the first tests I do with every GPU I obtain are with a 5GHz 2700K, at which speed it has the same multithreaded performance as a stock 6700K).

    What do you get for CB 11.5 and CB R15 single/multi?

    What mbd are you using? I ask because some later S775 mbds did use DDR3, albeit not at quite the speeds possible with Z68, etc. In other words, you could move the parts on a better mbd as an intermediate step, though finding such a board could be difficult. Hmm, given the value often placed on such boards, it'd probably be easier to pick up a used 3930K and a board to go with it, that would be fairly low cost.

    Or of course just splash for a 1700X. 8)

    Ian.
  • Notmyusualid - Tuesday, March 7, 2017 - link

    Welcome to the 21:9 fan club brother.

    But be careful of the 1920x1080 screens, my brother's 21:9 doesn't look half as good as my 3440x1440 screen.. It just needs that little bit more verticle resoultion.

    My pals 4k screen is lovely, and brings his 4GB 980 GTX to its knees. Worse aspect ratio (in my opinion), and too many pixels (for now) to draw.

    Careful of second-hand purchases too, many panels with backlight-bleed issues out there, and they are returns for that reason, again, in my opinion.
  • AnnonymousCoward - Monday, March 6, 2017 - link

    Long story short:
    20% lower single-thread than Intel
    70% higher multi-thread due to 8 cores
    $330-$500
  • Mugur - Tuesday, March 7, 2017 - link

    Actually, on average -6.8% IPC versus Kaby Lake (at the same frequency) - I believe this came directly from AMD. Add to this a lower grade 14nm process (GF again) that is biting AMD again and again (see last year RX480). Motherboard issues (memory, HPET), OS/application issues (SMT, lack of optimizations).

    All in all, I'm really impressed of what they achieved with such obstacles.
  • AnnonymousCoward - Tuesday, March 7, 2017 - link

    Just looking at CineBench at a given TDP and price, AMD is 20% lower. That's the high level answer, regardless of IPC * clock frequency. I agree it's a huge win for AMD, and for users who need multicore performance.
  • Cooe - Monday, March 1, 2021 - link

    Maybe compare to Intel's Broadwell-E chips with actually similar core counts.... -_-

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