Hardlimit test bank

[krampak]

@cobito There's no way to pass the Windows offline test, right? (like a pendrive). It would have come in handy now that I was without internet on the terrace

[cobito]

@krampak What you can do in that case is to validate offline, then you will get an error because the browser cannot find the page. Hibernate the computer with the browser open and wake it up connected to the internet. Refreshing the page that had previously given you an error should work.

[Xevipiu]

It would be good to be able to save the log to a file, and from the web to be able to upload the file

I've got myself a few Xeons, let's see what comes out of them

[cobito]

As it seems that new model submissions have stabilized a bit, from now on I will be posting the new micros added to the database and with this, we start with two:

· Core 2 Quad Q8400 by @krampak
· Pentium E5500 by @hAyO

[hAyO]

Maybe I'll send some more in these days, I'll try everything I have at home, old and new.

[cobito]

@Namiga brings us (in all available modes!) a recent micro: the i7-8700 (without k).

It is a CPU with 6 physical cores with 12Mb of L3 cache and a turbo frequency of 4.6GHz, which is 100MHz less than the K variant. The differences in frequencies at different loads mean a reduction in performance of 11-17% with a drop in TDP of 30W (more details).

For single-threaded programs, it performs similarly to the 7700K, which is not bad at all, and for multi-threaded it is quite similar to the Ryzen 1800X when we talk about optimized software, because if we focus on non-optimized software, the AMD micro eats the Intel.

Its price is just under 290€, very close to the Ryzen 1800X and about 40€ cheaper than the i7-8700K.

[Namiga]

And I strongly recommend that you buy another cooler that is not the stock one.
Its performance is not bad, it is worse.
After 5 minutes of video encoding, it was already at 99 degrees.. unacceptable.
In a while I will give you more data in another post

[cobito]

This morning @krampak has completed the benchmark in all modes of the i5-7200U, a mobile micro that came out a year and a half ago and offers performance similar to the previous generation 6500 series. Notably, it offers 90% of the performance of an i7-4790K in single-threaded tasks while running the 7200U at 70% of the desktop chip's frequency.

[cobito]

@Namiga brings us back in all modes a relatively recent micro: the i5-7300U. It is a portable processor with two cores and HT that appeared just over a year ago and that in nomenclature looks quite similar to the 7200U although there are appreciable differences in performance mainly in multi-threaded programs due to a higher frequency. In the rest of the characteristics, both the 7200U and the 7300U are identical

Of the processors of the same generation, the most similar is the i5-7500U that goes practically at the same frequency but comes with an Mb more of L3 cache. To find the most similar in our database you have to go to a higher category of a previous generation: the i5-6560U.

[Mystique]

Hello, I just passed the test on the Mi Notebook 13"

[cobito]

@Namiga is back, this time with an old dog: an Xeon E5645. It's a CPU that came out 8 years ago (Westmere core), you have 6 cores without HT and it runs at 2.8GHz as a maximum.

Coincidentally (I say it because the model has come out several times recently), its performance in multithreading is very similar to the i5-7200U (yes, with only 2 cores) and it is clear that the years have not left it in a good place in single-thread performance.

Apart from that, we do not have in the database a current desktop CPU that resembles it in the slightest; only portable micros like the one mentioned.

[cobito]

This morning @Namiga has once again contributed a couple of CPUs: an i5-4440 and a Celeron N3450.

The first of these is a mid-2013 desktop Haswell with 4 non-HT cores very similar in performance in all aspects to the i7-4720HQ laptop processor. The closest modern micro for which we have data would be the i3-7100 for multi-threaded tasks. For single-threaded tasks as is usually the case, we have to go back to previous generations to find something similar.

The second processor is in my view the most interesting for its low TDP: only 6W. It is the Celeron N3450 which in the case of the results sent by Namiga, is mounted on a CHUWI LapBook, a 14.1" ultrabook and priced at around €450. With that TDP, its 4 cores and 2.2Ghz turbo frequency makes it very difficult to find similar processors apart from the N3540 which as its name suggests, is from the same fifth. And the complication of the comparison comes from the fact that its performance is comparable to CPUs from the Core 2 era but only in FPU processing. As soon as the benchmark for software optimized for SSE3 (the highest set available on this Celeron) is passed, the N3450 eats the veterans LGA775 for breakfast. There are many LGA775 models that are comparable, but each model is in areas that are too specific to be able to choose just a couple of them.

[cobito]

@Namiga continues to complete our database of processors with an i3-6006U.

This is a more or less recent portable micro that, as a curious particularity today, apparently only works at one frequency, without turbo boost.

Its performance is also somewhat peculiar. It is at the bottom of the list of AVX2 CPUs, which means that our system has had some complications to find a match for it. If we focus on FPU performance, it looks quite similar to the i5-2520M, which only reaches the AVX1 set. The interesting thing is that the HT of the i3-6006U seems to be helping a lot because although in single-core performance both are practically identical, in multi-core performance the i3 from Namiga beats the old i5 by 25%.

[kynes]

I just bought myself a laptop with a 1060 with 6gb and an i5-7300HQ. When I get it set up, I'll run the tests again

[cobito]

@kynes The datasheet is already done here.

It's a good mobile micro. The difference with its smaller brother, the i5-7300U, is that it has 4 physical cores while the U has 2 with HT. With the same single-thread performance, in multi-threading the HQ is 45% faster than the U. Otherwise, they are practically identical.

Making a more general comparison, you would have to go to desktop CPUs like the i5-7500 to find something similar. If we go a few generations back, in single-threading it is comparable to none other than the i7-4790K, although the availability of HT in this four-year-old CPU makes it 25% faster than the contemporary portable processor that kynes has been given.

[kynes]

@cobito I am learning a lot by looking for ways to silence it. I think I will make a guide for undervolting modern processors, using the Throttlestop program. I have managed to limit a 45W TDP micro to 27W in OCCT, at the maximum multiplier it allows, and in normal use (web, office software) it usually does not exceed 5 or 6W. The battery lasts 66% longer, and the fan barely makes a sound. I wonder when I will have some time to get started, as it is a very interesting program.

[QVENGADOR]

I just did the test and it shows me a strange code in the signature.
Another curiosity is to know who does these things and what it is programmed in. Thanks,
By the way rank 299 what a shame. And I was so proud of my PC.

[cobito]

@qvengador said in Hardlimit test bench:

I just did the test and I get a strange code in the signature.

I think you mean that your nick has been superimposed on the results table. I have it noted for the next revision.

Another curiosity is to know who does these things and what it is programmed in. Thanks,

I do this myself. The front-end of the central (the web with results) is made with PHP-HTML and the back-end is written in C. The front-end of the program is written in TkInter and the back-end is in C and assembler.

I use C only when brute force processing is needed (like the calculation of results, similar processors, etc. of the central) and for the test bench where the compilation has to be predictable. Also, I need assembler to calculate frequency, read micro identification records and other low-level operations.

[QVENGADOR]

@cobito Eres un maestro

[cobito]

@Namiga brings us this time a micro from AMD from the pre-Zen era. It's an Excavator from a year ago whose strong point is surely the integrated graphics. It's the A9 9420.

Its performance is not for throwing rockets but for being a portable micro and with a TDP 15W it is not so bad. Coincidentally, the most similar model found has been the i3-6006U that the same companion brought us a few days ago. The A9 has snatched the tail leadership in the AVX2 multithread test by quite a bit. In the single thread it surpasses the 6006U by very little. In general both seem to be very similar processors, but the lack of SMT in the AMD makes it succumb to the Intel with HT in multithread.