In case anyone cares, the actual recently affected iPhones were benchmarked a few days ago. Not much performance change for iPhones 7 to X, but whopping 40% performance drop for anything A8 like the iPhone 6 and I suspect the iPad Air 2. I think that 40% drop due to Spectre and Meltdown patch and the 30% drop due to the battery throttling basically renders any iPhone 6 unusable (my opinion). Likely anything older than the A8 would suffer even bigger performance drops with the patch.
Link: https://www.gsmarena.com/spectre_an...rmance_impact_on_iphone_8_plus-news-29132.php
Link 2 (iPhone 6-specific): https://www.gsmarena.com/iphone_6_takes_massive_performance_hit_after_spectre_patch-news-29124.php
Not sure if these are identical to the numbers quoted already.
Link: https://www.gsmarena.com/spectre_an...rmance_impact_on_iphone_8_plus-news-29132.php
Link 2 (iPhone 6-specific): https://www.gsmarena.com/iphone_6_takes_massive_performance_hit_after_spectre_patch-news-29124.php
Not sure if these are identical to the numbers quoted already.
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