Dual AMD FirePro D300 graphics processors with 2GB of GDDR5 VRAM eachĬonfigurable to dual AMD FirePro D500, each with 3GB GDDR5 VRAM, 1526 stream processors, 384-bit-wide memory bus, 240GB/s memory bandwidth, and 2.2 teraflops performance or dual AMD FirePro D700, each with 6GB of GDDR5 VRAM, 2048 stream processors, 384-bit-wide memory bus, 264GB/s memory bandwidth, and 3.5 teraflops performance.16GB (four 4GB) of 1866MHz DDR3 ECC memoryĬonfigurable to 32GB (four 8GB) or 64GB (four 16GB).12GB (three 4GB) of 1866MHz DDR3 ECC memoryĬonfigurable to 16GB (four 4GB), 32GB (four 8GB) or 64GB (four 16GB).Intel Xeon E5 with 25MB 元 cache and Turbo Boost up to 3.9GHzĬonfigurable to 2.7GHz 12-core processor with 30MB 元 cache.Intel Xeon E5 with 12MB 元 cache and Turbo Boost up to 3.9GHzĬonfigurable to 3.0GHz 8-core processor with 25MB 元 cache or 2.7GHz 12-core processor with 30MB 元 cach e.Intel Xeon E5 with 10MB 元 cache and Turbo Boost up to 3.9GHzĬonfigurable to 3.5GHz 6-core processor with 12MB 元 cache, 3.0GHz 8-core processor with 25MB 元 cache, or 2.7GHz 12-core processor with 30MB 元 cache.MacBook Pro models from 2013 or later.Īccordingly, the following models capable of running macOS Catalina will not be able to be upgraded to macOS Big Sur: 2012 and Early 2013 MacBook Pro. Here’s an overview of the Macs that will run Big Sur, according to Apple: MacBook models from early 2015 or later. The 27-inch ‌iMac‌ had remained in the ‌iMac‌ line alongside the smaller 24-inch ‌iMac‌ with Apple silicon and was one of just a few Macs that still featured an Intel processor.Ĭan I update my iMac late 2013 to Big Sur? Speed up startup time: Manage startup programs.įollowing the launch of the new Mac Studio and Studio Display, Apple has discontinued the 27-inch iMac.Step 5: Reduce the number of apps in your Dock.Step 3: Limit your number of web browsing tabs.

Okay your iMac from 2013 can upgrade as far as macOS Catalina 10.15.

Late 2013 imac