Retina MacBook Pro EFI Update Causing Graphics, Processor Slowdown for Some

Posted in Apple, Apple News, Mac on 14/11/2012 by Chris Hauk


Apple’s latest EFI firmware update for the 15-inch Retina Display MacBook Pro is said to be causing problems for some users’ machines. Reports are cropping up on the Apple Support Communities forums that the update has caused reduced frame rates and processor slowdowns when using graphically intense applications.

Cult of Mac:

There are countless threads regarding the issue, with all users reporting that the problem is very inconsistent. It appears to affect MacBook Pros that are waking from sleep mode, or those that are used for gaming and using Windows in Boot Camp. The more graphically-intensive the application is, the bigger the problem.

Significant throttling of the processor and graphics processing unit speeds are being reported when high temperatures are reached. One user reports that the speed reduction kicks in around 65°C, and then it drops again at 80°C. The chip can withstand up to 105°C, according to Intel.

Have any of our reader had this happen to their machines since updating to the new EFI firmware? Were you planning to update, and now may hold off for awhile? Let us know in the comments section below.

  • I don’t have a retina MacBook Pro myself. However I have four users with them and all have applied this update with no issues. Now granted all but one of them are doing really intense graphic work, but even that one hasn’t noticed any issues at all.

  • Mine just seems to be running a little hotter than usual?

  • Very frustrated. I bought a BTO 15″ rMBP a month ago 16gb/2.6ghz…I should have taken it back for an exchange, but I opted to wait, faithfully, for the next EFI or SMC update. Nothing. Apple has since replaced the motherboard twice with no success. The exact same symptoms appear. What ticks me off is this doesn’t affect everyone. I know people who have perfectly working rMBP WITH the current EFI/SMC updates applied.

  • JJ

    Even after PRAM / SMC reset, I reach the threshold within 15 minutes of normal browser use and then machine starts stuttering again. Waiting for that “fix”…


Chris Hauk

MacTrast Senior Editor, and self-described "magnificent bastard," Chris Hauk owns Phoenix Rising Services and writes for everyone's favorite "bad movie" website, Big Bad Drive-In.

His first Apple product was an iPod Classic 9 years ago, and he has since added a MacBook Pro, a number of iPads, iPhones, and multiple Apple TVs to his collection.

He lives somewhere in the deep Southern part of America. Yes, he has to pump in both sunshine and the Internet.