Just choose 16GB. You can’t add memory to the 21.5-inch 4K iMac.

Apple quietly updated its iMac series yesterday, including upgrading the 27-inch model to 5K screen and adding a 4K screen to the top-of-the-line 21.5-inch model. From the comparison of various configuration parameters, the 21.5-inch 4K screen iMac does not seem to be very attractive, and the internal situation is also boring for DIY players: the CPU and memory are integrated on the motherboard.

According to the first disassembly report from OWC, the memory of the 21.5-inch 4K iMac is confirmed to be integrated on the motherboard. Users cannot install ordinary SO-DIMM notebook memory sticks. This is another desktop Mac computer with memory integrated on the motherboard after the new Mac mini. Although the default configuration has 8GB of memory, which is enough for most people's daily use, this practice is not very user-friendly. As for the CPU being soldered to the motherboard, it is not surprising, after all, few users will replace the CPU on the iMac.

In fact, the price of the 21.5-inch 4K iMac sold in China is 10,988 yuan, which is not very cost-effective. 21.5 inches is not big enough at present, and adding 2,500 yuan can get a 27-inch 5K, Intel Skylake processor and AMD R9 M280 discrete graphics card. I believe that consumers who are willing to spend so much money can easily make a choice.

As a winner of Toutiao's Qingyun Plan and Baijiahao's Bai+ Plan, the 2019 Baidu Digital Author of the Year, the Baijiahao's Most Popular Author in the Technology Field, the 2019 Sogou Technology and Culture Author, and the 2021 Baijiahao Quarterly Influential Creator, he has won many awards, including the 2013 Sohu Best Industry Media Person, the 2015 China New Media Entrepreneurship Competition Beijing Third Place, the 2015 Guangmang Experience Award, the 2015 China New Media Entrepreneurship Competition Finals Third Place, and the 2018 Baidu Dynamic Annual Powerful Celebrity.