Hi there, I am looking to upgrade my iMac 27" Late 2013 to 16GB RAM total. It currently has, 2x4GB (apple factory installed) and want to add another 8GB. Performance wise, Should I go for 2x4GB - Crucial 8GB Kit (2 x 4GB) DDR3L-1600 SODIMM Memory for Mac OR Should U go for 1x8GB - Crucial 8GB DDR3L-1600 SODIMM Memory for Mac Read about Dual channel etc, and people suggesting 2x4GB, but 1x8GB gives me option to upgrade more in the future. Thanks!
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