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by nkurz
4185 days ago
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My semi-verified guess is that a lot of the difference is CPU usage when two-finger scrolling on large pages. I just tried it on this page with OSX 10.9 and a 15" Mac Pro, monitoring with Activity Monitor and Coconut Battery while bouncing rapidly up and down. Chrome burns 90% of a CPU on one thread, and another 40% on another. Coconut reports about 32 Watts used. Safari maxes at about 12% plus 8%, and tops at about 15 Watts. Base usage on this machine with the current screen brightness and applications that happen to be open is 10-12 Watts. I get approximately the same results with Incognito mode, which suggests the problem is core Chrome rather than add-ons. |
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