Which processor is better and more rational for compiling code in Xcode?

Question

Processors

Hello dear Toasters!
The essence of the question is much more complicated, and I hope experienced and serious users will not miss this question, because there is a danger, and the fact that you ask such questions + 100500 times, background, iphone developer, it is important maximum performance, as I understand the processor, for minimum money.
I watched the generations of all processors installed on macbook air from 2012 to 2017, i5 and i7 generations
From thisThe site took all the necessary information on the characteristics of the poppy, I didn’t even consider the macbook pro, because the performance is consumed by the retina screen, and I don’t need it at all, because in fact I work only with code, and I don’t need a video card either, although I plan to develop games , and I may need it, correct me if I'm wrong, so that's what I noticed, if you rely only on processor performance, then 1.8 GHz Core i5 (I5-3427U) on mba 2012 has not changed in any way compared to 1.8 GHz Core i5 (I5-5350U) on mba 2017 (test, results ps://www.cpubenchmark.net/cpu.php?cpu=Intel+Core+i5-3427U+%40+1.80GHz&id=819">2012 and 2017) I'm not talking about the video adapter, autonomy and technology on the Intel® vPro platform, because for me it's absolutely not important, now let's move on to i7 processors, the story is similar, an increase of 11% compared to the i5 3427 processor 2.0 GHz Core i7 (I7 -3667U) mba 13 2012, an increase of 11% is that significant? Let's go further, mba 13 2013-2014 is no different, 1.7 GHz Core i7 (I7-4650U) processors and what we are seeing, no performance increase relative to the mba 2012 processor on i7 , then the mba 13 2015-2017 lineup is the same story, processors identical 2.2 GHz Core i7 (I7-5650U), I7-5650U performance test, we get an increase relative to 2014 5%, relative to 2012 the same 5%, when compared with i5 processors (mba 13 2012 -2017) an increase of 17%, here I think it is significant, again, I'm not talking about the built-in video adapter, 2012 hd4000, 2013-2014 hd5000, 2015-2017 hd6000, but I don’t know if it will be involved in the development of swift games for iphone, if these are 2d games, maybe not, but if 3d games, then most likely yes, although I don’t I know, correct me if anything, and we take into account the fact that I only program on mba without an external monitor connected, therefore, for this reason, we do not take into account the need for an integrated video card, as a result, i7 2012 is worse than 2017only by 5-6%, and the whole point is whether the game is worth the candle, for the sake of some 5%? Or is it still significant? Either I looked at the question too superficially, and there are details in the new generation processors that speed up development in xcode and appcode by over 20%, or I'm completely wrong. And yet, geekbench 4 gives such results mba 13 2012 i7-3667U 2.0 GHz 5785 in the multicore test and mba 13 2015-2017 i7-5650U 2.2 GHz 6884 performance increase of 19%, I suspect that there are characteristics not only of the processor, what to do? this is the whole question.
Please, those who understand, answer, because I want to understand.

Answer 1

Hello, you are not the only one who is suffering with this issue, there is a popular github repository , where there are results for different assemblies / versions of xcode.
I think it will help you with your question.

Answer 2

installed on macbook air from 2012 to 2017

air is not for development, exactly like all dual-core slack cores (I have and they will lose notably)
take either mackboock pro or imack
ssd similar in characteristics > 250
operas from 16 (16 is enough in fact)
PS macbook air is cool if you have nothing except for office software or for publishing something every six months, it has a good battery, it is very light, but that's it