![]() Disabling the GPU results in identical performance when tasks use the CPU instead. Update 16 July 2017: it turns out that this is a GPU throttling behavior. For example, with 10 iterations of of the Photoshop sharpening test, the 2016 MacBook Pro declined in performance at later examples. While testing the 2016 MacBook Pro, a consistent pattern was noticed in that performance declines with each iteration of a test in Photoshop. These bugs were seen only on the two MacBook Pros and not on the iMac 5K and Mac Pro. That would be consistent with the inability to complete some tests in Photoshop due to GPU bugs that caused Photoshop to issue a GPU error dialog (the LensCorrections test could not be completed on the laptops). If so, a fix in a release of macOS is possible. Update 07 December 2016: MPG has a hunch that the behavior seen here is a GPU driver bug, perhaps one that leaks memory and thus rapidly degrades performance. Update 09 July 2017: the 2017 MacBook Pro behaves similarly it slows down under sustained load. ![]() MPG tested a fully-loaded 2017 MacBook Pro with 1TB SSD. Suggested accessories include the OWC Thunderbolt 3 Dock and 1TB Envoy Pro EX. MPG gets credit if you buy through those links. ![]() Updated - Send Feedback Related: 2013 Mac Pro, 2015 MacBook Pro, 2016 MacBook Pro, 4K and 5K display, computer display, GPU, iMac, iMac 5K, laptop, Mac Pro, MacBook, MacBook Pro, Macs, Photoshop, post processing, SSD, video
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