![]() ![]() If the EFI issue is indeed what caused the MacBook Pro with Retina display’s performance lag, it can easily be fixed by another EFI update that changes the temperature threshold when the CPU and GPU are supposed to be throttled. MacBook Pro (non-Retina) EFI Firmware Update 2.9 This update fixes problems where under high CPU loads, the system may hang and require a forced restart to resume functionality. What’s new in version 1. This update addresses an issue which, in rare cases, may limit the performance of the discrete graphics processor after a system wake or boot. AppleInsider has reported that the processors used in the MacBook Pro are supposed to start throttling users once they hit 105 degrees Celsius, however, some users are reportedly seeing their GPU throttled when their MacBook’s CPU hits 80 degrees Celsius. This MacBook Pro Retina EFI Update update is recommended for MacBook Pro (Retina, 15-inch, late 2013) models with NVIDIA graphics. Download Apple MacBook Pro Retina EFI Firmware 1.0 for Mac Softpedia >Drivers >Firmware >Apple > Apple MacBook Pro Retina EFI Firmware 1.0 Apple MacBook Pro Retina EFI Firmware 1.0 DOWNLOAD. EFI updates can control how hot a CPU can get before underclocking or throttling users this is why people are pointing fingers at Apple’s EFI update for causing the frame rate issue. ![]() EFI, or Extensible Firmware Interface, is a BIOS standard developed by Intel. Click on the link About EFI and SMC firmware updates for Intel-based Mac computers - Apple Support If the Mac has already updated EFI / SMC before arriving new versions the problem should not come, I did this update when using Yosemite or El Capitan, after installing Mac OS latest versions the issue never appeared. The reported issues are caused by the MacBook Pro’s GPU and CPU being underclocked when hitting temperature thresholds that are apparently set very low. We’ve seen reports of decreased video frame rates when playing graphic-intensive games, waking from sleep or running Windows via Boot Camp. According to the Apple Support Community forum, some 15-inch MacBook Pro with Retina display users are experiencing major graphic lag after updating their Macs to Apple’s MacBook Pro Retina EFI Update v1.0. ![]()
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