The Intel 9th Gen Review: Core i9-9900K, Core i7-9700K and Core i5-9600K Tested
by Ian Cutress on October 19, 2018 9:00 AM EST- Posted in
- CPUs
- Intel
- Coffee Lake
- 14++
- Core 9th Gen
- Core-S
- i9-9900K
- i7-9700K
- i5-9600K
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
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.
Please note, if you plan to share out the Compression graph, please include the Decompression one. Otherwise you’re only presenting half a picture.
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.
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.
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GreenReaper - Friday, October 19, 2018 - link
The answer is "yes, with a but". Certain things scale really well with hyperthreading. Other things can see a severe regression, as it thrashes between one workload and another and/or overheats the CPU, reducing its ability to boost.Cache contention can be an issue: the i9-9900K has only 33% more cache than the i7-9700K, not 100% (and even if there were, it wouldn't have the same behaviour unless it was strictly partitioned). Memory bandwidth contention is a thing, too. And within the CPU, some parts can not be partitioned - it just relies on them running fast enough to supplky the parts which can.
And clearly hyperthreading has an impact on overclocking ability. It might be interesting to see the gaming graphs with the i7-9700K@5.3Ghz vs. i9-9900K@5.0Ghz (or, if you want to save 50W, i7-9700K@5.0Ghz vs. i9-9900K@4.7Ghz - basically the i9-9900K's default all-core boost, but 400Mhz above the i7-9700K's 4.6Ghz all-core default, both for the same power).
NaterGator - Friday, October 19, 2018 - link
Any chance y'all would be willing to run those HT-bound tests with the 9900K's HT disabled in the BIOS?ekidhardt - Friday, October 19, 2018 - link
Thanks for the review!I think far too much emphasis has been placed on 'value'. I simply want the fastest, most powerful CPU that isn't priced absurdly high.
While the 9900k msrp is high, it's not in the realm of irrational spending, it's a few hundred dollars more. For a person that upgrades once every 5-6 years--a few hundred extra is not that important to me.
I'd also like to argue against those protesting pre-order logic. I pre-ordered. And my logic is this: intel has a CLEAR track record of great CPU's. There hasn't been any surprisingly terrible CPU's released. They're consistently reliable.
Anyway! I'm happy I pre-ordered and don't care that it costs a little bit extra; I've got a fast 8 core 16 thread CPU that should last quite a while.
Schmich - Friday, October 19, 2018 - link
You have the numbers anyway. Not everyone buys the highest end and then wait many years to upgrade. That isn't the smartest choice because you spend so much money and then after 2-3 years you're just a mid-ranger.For those who want high-end they can still get a 2700x today, and then the 3700x next year with most likely better performance than your 9900k due to 7nm, PLUS have money over PLUS a spare 2700x they can sell.
Same thing for GPU except for this gen. I never understood those who buy the xx80Ti version and then upgrade after 5 years. Your overall experience would be better only getting the xx70 but upgrading more often.
Spunjji - Monday, October 22, 2018 - link
This is what actual logic looks like!Gastec - Sunday, November 4, 2018 - link
Basically "The more you buy, the more you save" :-\shaolin95 - Friday, October 19, 2018 - link
Exactly. I think the ones beating the value dead horse are mainly AMD fanboys defending their 2700x purchaseeva02langley - Friday, October 19, 2018 - link
Sorry, value is a huge aspect. The reason why RTX is such an issue. Also, at this price point, I would go HEDT if compute was really that important for me.It is not with 10-15% performance increase over a 2700x at 1080p with a damn 1080 TI that I will see a justified purchase.
Arbie - Friday, October 19, 2018 - link
Gratuitous trolling, drags down thread quality. Do you really still need to be told what AMD has done for this market? Do you even think this product would exist without them - except at maybe twice the already high price? Go pick on someone that deserves your scorn, such as ... Intel.Great_Scott - Friday, October 19, 2018 - link
What a mess. I guess gaming really doesn't depend on the CPU any more. Those Ryzen machines were running at a 1Ghz+ speed deficit and still do decently.Intel needs a new core design and AMD needs a new fab.