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Definitive Qualcomm (A1660/A1661) v. Intel (A1778/A1784) iPhone 7/7 Plus Thread

aka777 said:
Sounds like apple has restricted all of the advanced features of the qualcom chipset anyway. I am sure these will be available in next years iphone instead. Had they not, the 4x4 mimo would be amazing on T-Mobile and other international carriers.
Click to expand...

Are you sure about this? I thought I read from Tmobile that the Samsung S7 Edge (which I was using prior to moving to iPhone7 Plus) now has 4x4 mimo support after the last software update and the support was coming to iphone7. Hmm they just mention more phones will be added soon but the PcMag article seems to mention no 4x4 mimo for Tmobile iphone this is no good!

https://newsroom.t-mobile.com/news-and-blogs/lte-advanced.htm

http://www.pcmag.com/news/347729/will-iphone-7-support-t-mobiles-new-400mbps-network

Why Apple didn't use this chip instead? Seems like the ideal chip...

http://www.intel.com/content/dam/www/public/us/en/documents/platform-briefs/xmm-7480-brief.pdf



-Mike
 
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cc999 said:
I had the ATT iPhone 7 plus with the Intel chip for a week before returning it
for the Verizon Qualcomm version. This is on the ATT network.Both full price unlocked.
My observations:

Verizon (Qualcomm) version definitely has better battery life (consistently 5-10%)

Verizon (Qualcomm) version has better reception without a doubt, where I was dropping calls with the Intel the Qualcomm never disconnected. At home in my office I get 3 bars on the Qualcomm vs 2 on the Intel

The above is from 1 week use with each phone. Let's also remember the resale value and overseas travel options
are much better with the Verizon model.

CC
Click to expand...

Not sure what you mean by travel options are better with Verizon model as 99% of the World uses GSM not CDMA.

-Mike
 
mikefla said:
Not sure what you mean by travel options are better with Verizon model as 99% of the World uses GSM not CDMA.

-Mike
Click to expand...

Not to mention CDMA is only the fallback frequency as everyone is on LTE already. It's like falling back to GPRS.
 
Okay, so I spent around 5 hours with the phone. It really does have horrible hissing noise that is evident through video playback. Also, I noticed this:

I was in a room with two of my friends - both had the 7 plus (I think one uses 32GB, the other 256GB), and they're both Verizon. 4-5 bars, LTE, everything looks good. I'm using my 7 plus with T Mobile, and for some reason, I had originally already had horrible signal here (6 plus and Edge 6 gave me 2 bars at most). But now with this phone, I'm getting nothing.

I'm already planning to get a replacement and live with whatever I get for my next phone in terms of the hissing noise. Do you guys think I can maybe get a SIM-free iPhone? That room was in my workplace, and granted it's not where I go every day, but it's disappointing to say the least.

EDIT: I forgot to mention, I bought this phone through Apple's monthly payment plan - I first asked if I could get the SIM-free card based on these reports, but was told I couldn't get any phone other than the one I used for my carrier.
 
DeSlaye said:
In countries with CDMA networks like Japan, China, and the US? Definitely.
[doublepost=1477097000][/doublepost]
If you bought it from them, yes.
Click to expand...

It's mostly GSM networks over there. The phone was purchased under the IUP from the Apple Store.
 
newellj said:
Yeah, I realized that shortly after typing the question. Duh...has to be Qualcomm, otherwise it wouldn't work on VZW and other CDMA networks.
Click to expand...

It highlights a point though. Sim free phones sold in Europe are intel not Qualcomm. There are no Qualcomm handsets in Europe.
 
From real life experience as I own both models 1661 jet and 1784 gold both 128 GB after a month I can confirm that 1784 giving me 10-15% better battery life !
 
Wait, elkaram, you've been using them simultaneously in the same environments?

Edit: and both are on the same network?
 
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ilifecomputer said:
Wait, elkaram, you've been using them simultaneously in the same environments?

Edit: and both are on the same network?
Click to expand...
Yup 100% same network on 4G all the time and this question always in my mind witch model is better so I was so fair using both the same but always 1784 wins by mile NOTE : we don't have CDMA in UAE j
 
Elkaram said:
Yup 100% same network on 4G all the time and this question always in my mind witch model is better so I was so fair using both the same but always 1784 wins by mile NOTE : we don't have CDMA in UAE j
Click to expand...

That's good to know for the 1784 (intel chip - att/Tmo in US) camp woo

Have you noticed difference in reception or performance? And did you buy both to experiment ?
 
Elkaram said:
From real life experience as I own both models 1661 jet and 1784 gold both 128 GB after a month I can confirm that 1784 giving me 10-15% better battery life !
Click to expand...

Sorry, I find this hard to believe.

You need to be:

1) Using these phones at the same time, same place throughout the day
2) Have the same apps downloaded onto your phones
3) Have the same apps in the background, while using the apps in the same way
4) Take calls, text messages for the same amount of time
 
kevinkyoo said:
Sorry, I find this hard to believe.

You need to be:

1) Using these phones at the same time, same place throughout the day
2) Have the same apps downloaded onto your phones
3) Have the same apps in the background, while using the apps in the same way
4) Take calls, text messages for the same amount of time
Click to expand...
Why is that. Because the Intel modem might give better battery life and all the I have a better modem people will be silenced?
[doublepost=1477151252][/doublepost]So for comparison at work WHILE on break or lunch I play Clash of Clans. Don't judge.

iPhone 6s had to be in the window or it would drop or lag.

iPhone 7 I can play at my desk. Zero lag. And the battery lasts longer.

I have the Intel phone.
 
The evidence is definitely self reported anecdotal sample size of 1's perception, but it's not too hard to turn this into a theory.

If one modem works harder it could maybe require a bit more juice. Maybe the intel slower speeds at less than ideal reception is more of a battery sipper than the QC? Just talking out loud. Who knows.

When I get home on Wednesday I'm going to do my own intel 7 vs Qualcomm 6s speed test in my living room where I don't get super amazing service. I'll run them several times and compare my averages.
 
ilifecomputer said:
The evidence is definitely self reported anecdotal sample size of 1's perception, but it's not too hard to turn this into a theory.

If one modem works harder it could maybe require a bit more juice. Maybe the intel slower speeds at less than ideal reception is more of a battery sipper than the QC? Just talking out loud. Who knows.

When I get home on Wednesday I'm going to do my own intel 7 vs Qualcomm 6s speed test in my living room where I don't get super amazing service. I'll run them several times and compare my averages.
Click to expand...
The early reports are the Intel is getting better battery life. I am going 2 days before charging.
 
My theory is that the intel modem may be actually connected to a different band than the 6s / plus may be, and therefore showing a differnce. We can't actually see the field test data to confirm which band the intel is on, so it possible to conclude intel isn't on the same band and why were seeing these results. AT&t has several bands deployed, and even identical devices sometimes take a while to connect to the same band, in the exact same locations; or may stay on different bands until the device thinks its time to switch. In my area i have band 2, which the 6s plus favored band 12 and 17, band 4 and band 30. Recently noticed my unite explore is connecting to band 30, where as it preferred band 2 before. speed test are showing the pings to be a lot higher than before, and the 7 Plus shows almost the exact same speeds and ping times. When unite explore connects to band 2, similar pings, and speeds on the 7 Plus. I'm almost comparing signal values, as they change going from band 12/17 to band 2 or 30.
I know the guys testing the modems did so in a controlled environment with controlled frequency bands, but this is just what I have found out doing my own testing.
 
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kevinkyoo said:
Sorry, I find this hard to believe.

You need to be:

1) Using these phones at the same time, same place throughout the day
2) Have the same apps downloaded onto your phones
3) Have the same apps in the background, while using the apps in the same way
4) Take calls, text messages for the same amount of time
Click to expand...

not hard to believe at all. consider that Intel modem does not have deal with legacy CDMA and less complex switching logic to deal with daily.
 
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kevinkyoo said:
Okay, so I spent around 5 hours with the phone. It really does have horrible hissing noise that is evident through video playback. Also, I noticed this:

I was in a room with two of my friends - both had the 7 plus (I think one uses 32GB, the other 256GB), and they're both Verizon. 4-5 bars, LTE, everything looks good. I'm using my 7 plus with T Mobile, and for some reason, I had originally already had horrible signal here (6 plus and Edge 6 gave me 2 bars at most). But now with this phone, I'm getting nothing.

I'm already planning to get a replacement and live with whatever I get for my next phone in terms of the hissing noise. Do you guys think I can maybe get a SIM-free iPhone? That room was in my workplace, and granted it's not where I go every day, but it's disappointing to say the least.

EDIT: I forgot to mention, I bought this phone through Apple's monthly payment plan - I first asked if I could get the SIM-free card based on these reports, but was told I couldn't get any phone other than the one I used for my carrier.
Click to expand...


Sim-free does not require to activate a carrier (paid full price or Apple finance program). I just bought sim-free JB 256gb yesterday thru Apple/Barclays finance. Took all 5 mins, in fact waiting for the next avail rep took longer. Ordered on Apple online reservation/finance not the istocknow.
 
When had the matte blk plus 128gb tmo intel i had fantastic battery life. I was just amazed. Swapped it for a sim free jet blk 128gb qualcomm and my battery life is just as par with the 6s plus i had. (Not so good)!
 
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normanfox said:
Quote from the article. Samsung LTE chip is the top dog, following by Qualcomm. ......
interesting fact is that it was actually the Galaxy S7 edge, of all the phones tested, that pulled way ahead of all designs, and this one has Samsung's in-house Shannon LTE modem chip..."
Click to expand...

Not sure which article you're quoting, but we never wrote that. The modem found in the Samsung Galaxy S7 Edge is the Qualcomm X12 integrated into the Snapdragon 820 SoC, not the Shannon/Exynos. Samsung implemented 4 receive antennas into the design, which allows for 4x4 MIMO, and helps with receive diversity in edge of cell situations. We've written about it here: http://cellularinsights.com/samsung-galaxy-s7-the-first-4x4-mimo-smartphone/

MDM9645M found in the iPhone 7 A1661 is basically the discrete version of X12 modem, implemented without 4 Rx antennas, 256QAM and a few other features disabled.
 
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Thor_1 said:
Why is that. Because the Intel modem might give better battery life and all the I have a better modem people will be silenced?
Click to expand...

normanfox said:
not hard to believe at all. consider that Intel modem does not have deal with legacy CDMA and less complex switching logic to deal with daily.
Click to expand...

I think the point he was trying to make is that unless both phones were used in the same locations with the same apps and for the same amounts of time, it isn't a valid comparison and you can't draw any conclusions based on the data.
 
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