Wait, can you open up your AT&T X and do the same testing on that one to compare your AT&T (Intel X) with the Verizon (Qualcomm) X?
I would love to see an actual test of this at this point.
I just read some of MacRumor's older frontpage posts like this:
https://www.macrumors.com/2017/09/26/iphone-8-teardowns-modems/
Intel, on the other hand,
claims up to 15 percent lower power usage compared to its previous-generation modem, which could be thanks in part to the newly included envelope tracker for voltage control, which reduces power usage and heat. While it is not clear which process Intel's modem is built on, it seems likely it is still a 28nm process from TSMC, as Intel still works on the technology lineage from its Infineon acquisition. Nevertheless, future iPhones will be well-positioned to include higher bandwidth and more diverse network capabilities in the future, even if the modems they use stay the same.
The above is referencing the iPhone 8. This might negate the 'battery life' advantage on the Qualcomm.
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It is if it is real, like these tests are to be believed. Look how much higher the performance is on the Qualcomm versions (unless this is a sham):
https://www.macrumors.com/2017/09/28/iphone-8-cellular-bandwidth-tests/
Rate limiting should have occured on the older phones already back in November 2016:
http://appleinsider.com/articles/16...em-to-keep-performance-on-par-with-intel-chip
What this shows is that even after Apple artificial rate limiting, the Verizon still performs better than the GSM-only Intel model.
I thank 2 people who have tested this live and experienced results that really didn't make much of a difference (with the exception of 1 bar higher on the Intel contrary to opinions that Qualcomm has should have better signal).