![]() ![]() ![]() The video exported in just 4 minutes and 51 seconds, 21 seconds faster than the quad-core test, and 39 seconds faster than the hexa-core test without the extra cooling. Unsurprisingly, doing so resulted in the best performance out of the three tests. Third Test: The freezerįor the last test, I switched back to the full 6-cores and put my MacBook Pro in the freezer to keep it cool, à la Dave Lee, who made the excellent video that lended such a big voice to this issue. Keep in mind that the CPU inside this MacBook Pro has the following specifications:įor the majority of the testing, the wattage consumed by the CPU stayed around 20W, and overall CPU utilization stayed well below 50%. Using just four cores (eight logical cores with Hyper-Threading) The export completed in just 5 minutes and 12 seconds, 18 seconds faster than the it did when using all 6 cores. Would it make any difference for my Final Cut Pro export? I now effectively had a quad-core machine instead of a hexa-core machine. To attempt this, I installed Xcode, and utilized the handy Instruments utility to disable two of the cores. I was curious to see how the MacBook Pro would respond to the same test with only 4 cores enabled. Like most laptops, previous generations of the MacBook Pro have throttled, but the throttling with the Core i9 can be quite aggressive with Final Cut Pro X exports. (Update: these dips are actually the CPU idling) According to Intel Power Gadget data, this is in response to a CPU Hot flag. Specifically, notice how aggressive throttling is here, with numerous occurrences of the clock speed dipping to 800MHz. Throttling was definitely noticeable during the export, as you can see from the following chart created from Intel Power Gadget log data: Leaving the Core-i9 configured as default, I exported the video in 5 minutes and 30 seconds. To preface, this test is by no means law, and certain applications and export settings may respond differently. All other apps, except apps needed for testing, closed.Exported with Apple’s built-in Final Cut Pro preset: Web Hosting – H.264 Faster Encode – 3840 x 2160. ![]()
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