About radio chip thu-put and range.

[Budgeter]

1. Can anyone rank the performance of these WI chip and separate into two group: 2.4 - 5 GHz. for me please? Only in term of raw performance (not included firmware, implementation, etc)
QC: QCA 9xxx, IPQ 40xx.
BCM: 43xx
MTK: 76xx

2. What are the pros and cons of the chip from these vendor (E.g: BCM = not really good MU-MIMO, etc)

3. What are the meanings of the suffixes of MTK 76xx series? (E.g: 7615(SN), 7615(DN), 7615(N), etc)

 

[Internet Man]

I don't think that this can really be dumbed down in the way that you've requested. Different products using the same chips can have different performance. Chipset manufacturers usually don't publicly share many details about chips so you have to go digging to find what's out there. Much of the details seem to be protected by NDAs.

 

[Budgeter]

I agree. Obviously products with the same internal can perform differently duo to many other factors, and even low end device can perform really well thanks to its well-design.
But what I'm looking for is something like general consensus. Like in the world of smartphone, people usually say that SD > Exynos, etc, in term of gaming performance even their spec are almost the same. In case of consumer low end networking stuff, I would say that, normally, QC >=BC > MTK. Now I want to dig this problem a bit deeper.

 

[ColinTaylor]

Impossible to say. "Performance" means different things to different people.

For example;
Compatibility? - With what, standards, non-standard devices? Devices from the same manufacturer or a different one?
Throughput, range? - Depends on external factors like what power amp is used, what the antenna chain is like, build quality, etc.

Then there's the whole thorny issue of regional changes to power output, channel selection, etc.

 

[Budgeter]

For #1
My bad when I used vague term like that. Just to be clear, what I'm considering hear is only 2.4-5 GHz Avg thru-put, range and consistency thru-put over range.
From my knowledge, WI chip is used to control and deal with signal in-out (capable signal magnitude, bandwidth, etc). Correct me if I'm wrong on this one, I'm new to these stuff anyway.

And as I said, in a real world scenario, we can only know how it perform through using, benchmark it since there are several other factors as you mentioned. I just want to know the general opinion about these chip for now, not about real world "performance". (E.g: general consensus: "more ram is better", but in fact it's still depended on how the manufactures configure it, etc). My knowledge in this field is still limited so I can't take an example right from it.

Btw, I'm still a starter in English so forgive me if I couldn't explain my opinion clearly.

If it's still impossible to tell, can you guys continue to answer question 2-3 for me?

 

[Internet Man]

3. What are the meanings of the suffixes of MTK 76xx series? (E.g: 7615(SN), 7615(DN), 7615(N), etc)

People have done a decent job of capturing the available information for these chips on the MediaTek page at WikiDevi. There is also a page specifically for the MT7615 series. Much of this information comes from identifying the chips in pictures of the internals of devices that are released and looking at the claimed specs that go with it. MediaTek releases very little information publicly and doesn't help us figure out what's different between the various MT7615 chips. They also delete information and modify spec pages over time. Some of the information is simply a guess and it occasionally will be passed along as fact. Much of this information could be wrong.

MT7615E/MT7615N = 4x4:4 abgn+ac Wave2 MU-MIMO 256QAM
MT7615B(N) = 3x3:3 abgn+ac Wave2 MU-MIMO 256QAM
MT7615D(N) = 2x2:2 2.4GHz bgn 256QAM & 2x2:2 5GHz an+ac Wave2 MU-MIMO in a single chip
MT7615S = 3x3:3 2.4GHz bgn only 256QAM
MT7615SN = 2x2:2? 2.4GHz bgn only 256QAM