Intel Core i7-10700 vs Core i7-10700K Review: Is 65W Comet Lake an Option?
by Dr. Ian Cutress on January 21, 2021 10:30 AM EST- Posted in
- CPUs
- Intel
- Core i7
- Z490
- 10th Gen Core
- Comet Lake
- i7-10700K
- i7-10700
CPU Tests: Legacy and Web
In order to gather data to compare with older benchmarks, we are still keeping a number of tests under our ‘legacy’ section. This includes all the former major versions of CineBench (R15, R11.5, R10) as well as x264 HD 3.0 and the first very naïve version of 3DPM v2.1. We won’t be transferring the data over from the old testing into Bench, otherwise it would be populated with 200 CPUs with only one data point, so it will fill up as we test more CPUs like the others.
The other section here is our web tests.
Web Tests: Kraken, Octane, and Speedometer
Benchmarking using web tools is always a bit difficult. Browsers change almost daily, and the way the web is used changes even quicker. While there is some scope for advanced computational based benchmarks, most users care about responsiveness, which requires a strong back-end to work quickly to provide on the front-end. The benchmarks we chose for our web tests are essentially industry standards – at least once upon a time.
It should be noted that for each test, the browser is closed and re-opened a new with a fresh cache. We use a fixed Chromium version for our tests with the update capabilities removed to ensure consistency.
Mozilla Kraken 1.1
Kraken is a 2010 benchmark from Mozilla and does a series of JavaScript tests. These tests are a little more involved than previous tests, looking at artificial intelligence, audio manipulation, image manipulation, json parsing, and cryptographic functions. The benchmark starts with an initial download of data for the audio and imaging, and then runs through 10 times giving a timed result.
We loop through the 10-run test four times (so that’s a total of 40 runs), and average the four end-results. The result is given as time to complete the test, and we’re reaching a slow asymptotic limit with regards the highest IPC processors.
Google Octane 2.0
Our second test is also JavaScript based, but uses a lot more variation of newer JS techniques, such as object-oriented programming, kernel simulation, object creation/destruction, garbage collection, array manipulations, compiler latency and code execution.
Octane was developed after the discontinuation of other tests, with the goal of being more web-like than previous tests. It has been a popular benchmark, making it an obvious target for optimizations in the JavaScript engines. Ultimately it was retired in early 2017 due to this, although it is still widely used as a tool to determine general CPU performance in a number of web tasks.
Speedometer 2: JavaScript Frameworks
Our newest web test is Speedometer 2, which is a test over a series of JavaScript frameworks to do three simple things: built a list, enable each item in the list, and remove the list. All the frameworks implement the same visual cues, but obviously apply them from different coding angles.
Our test goes through the list of frameworks, and produces a final score indicative of ‘rpm’, one of the benchmarks internal metrics.
We repeat over the benchmark for a dozen loops, taking the average of the last five.
Legacy Tests
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schujj07 - Friday, January 22, 2021 - link
A stock 3700X has a total package power of 88W and the 212 EVO is a 150W TDP cooler. Whereas the included Wraith Prism cooler with the 3700X is a 125W TDP cooler. One would expect that the larger capacity cooler with the larger fan would be quieter.vegemeister - Friday, January 22, 2021 - link
Heat transfer does not work that way.ΔT = P * R
where T is temperature (K), P is power (W), and R is thermal resistance (K/W).
Unless the temperature rise is known the only thing "150W cooler" tells you is that the heat pipes won't dry out at 150W with reasonable ambient temperature. (That's a thing that can happen. It's not permanent damage, but it does mean R gets a lot bigger.)
The fact is the Wraith Prism is the same 92mm downdraft cooler AMD has been shipping with their CPUs since the Phenom II 965.
Spunjji - Friday, January 22, 2021 - link
The Wraith Prisms are fine - the one that comes with the low-end ryzens (and I think now the 5600) aren't so great for noise, but they do let the CPU come within 95% of its peak performance, so not bad for a freebie.alufan - Thursday, January 21, 2021 - link
Am not seeing the point of this article is 65w an option and then you blatantly ignore the actual TDP stated and produce a test, for the test to be a fair comparison all the chips should be limited to actual power stated and then run through any Benchmarks, its like saying we are testing CPUs at 125w and including the LN2 FX AMD chip and seeing how much power you can actually run through it, running these chips like this constantly will degrade them and eat up a considerable amount of power that you dont need to use.Then again I should be surprised, yet again 12 articles on the front page regarding Intel 3 regarding AMD guess Intels media budget is bigger hmm
DominionSeraph - Thursday, January 21, 2021 - link
It's AMD CPUs that degrade at stock clocks. Intel will run for decades even with moderate overclocks.bji - Thursday, January 21, 2021 - link
AMD CPUs do not "degrade" at stock clocks or overclocks.DominionSeraph - Thursday, January 21, 2021 - link
Their Turbo is literally built around it. It will lower clocks as the chip degrades. The degradation is all over Reddit. I'm surprised no tech site has followed up on the scandal.bigboxes - Thursday, January 21, 2021 - link
I'm surprised there aren't more trolling like youSpunjji - Friday, January 22, 2021 - link
I'm not.I just spent a bit of time on Google and the majority of the results are people saying "I heard this, is it true?" - the rest are people talking about how they ran their chip way outside spec (significant overvoltage, overclock *and* high temperatures) and can no longer get the same overclock out of it.
Take your FUD and cram it. 🥰
Spunjji - Friday, January 22, 2021 - link
It took me less than 15 minutes to confirm that this is a lie.Incidentally, the only CPUs I've ever had "degradation" problems with were all Sandy Bridge - 2 i3s, one i5 and one i7. Only one of them was ever overclocked. They started to show strange issues after 3-5 years - stuff like frame-rate inconsistency in games, graphics artefacts, random crashes.
I've never gone around slamming Intel, though, because sometimes you just get a bad chip. It happens.