I don’t have a 2015 Mac, nor my 2012 Mac mini (Core i5) any longer. But… I haven’t yet taken in my 2007 MacBook for recycling. 😁
So… some numbers:
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* Single pass tests
** MBP was on battery power
*** Speedometer 3 wouldn’t run on the 2007 MB, the page loads but nothing happens when I click “Start Test"
**** The
force dark mode flag is enabled on Chrome and Edge
Despite the values, I don’t notice a difference in browsing on the M1 vs. M4 — this is fairly common in benchmark comparisons. Even the MacBook is usable regarding performance, slow with the only frustrating behavior being a mostly unresponsive screen zoom. However, indeed, compatibility with anything modern is nearly non-existent.