Because Geekbench 4 is flawed, plain and simple. Not only does it report wrong results in many areas (e.g. memory bandwidth!), when you run a real-world test, the difference between Haswell and Skylake becomes significant.
You might also find this interesting:
https://forums.macrumors.com/threads/an-opinionated-cpu-benchmark-of-the-2016-15-mbp.2026475/
Forgive the length and if I make a vocabulary error.
Is there any way to quantify how much of that is explainable to the 2016's superior thermal efficiency? Unlike most synthetic benchmarks, you were running a sustained test (and dare I say a closer duplication to real world usage?) and I am guessing this is where a bigger difference would be seen?
Further, do you have any thoughts on the difference between sustained CPU loads and sustained CPU
and sustained GPU loads? My work is mainly CPU-intensive ONLY...and the CPU alone will take my MBP to its thermal limits (it's as high as the internal temp can go, and the fan speeds are maxed, even though the GPU isn't very active - and I was still surprised it did that well.) Presumably, the additional heat from heavier GPU usage (or even the heat from charging a battery) would generate more total heat than the overall design can dissipate (consequently resulting in thermal throttling, and more so with a GPU that makes more heat.)
I assume this is where the 2016
really excels considering the GPU advancements + heat reduction? (and I base this assumption looking at the comparison of UHD rendering times, which presumably push the CPU
and GPU hard, and are disproportionately faster on the 2016 than the CPU differences alone could explain.)
With Geekbench (and, to my understanding, Passmark), when I run a benchmark, the GPU sits near idle. For real-world usage, I've read Makers are progressively moving to using the GPU for more everyday tasks if doing so improves efficiency - do you know if this is happening with the new MacBook Pro? To me, this would make sense since now the design seems to be able to better cool both under a sustained load. Do certain (updated versions of) Apps on the 2016s use the GPU in a fashion that previous MBP iterations did not?
If I had a 2014/2015 2.8, I'd send it to you to run the same test for poops and giggles.