Adamanta 32GB (4x8GB) Memory Upgrade Compatible with Late 2015 iMac 27" Retina 5K Display DDR3/DDR3L 1867Mhz PC3L-14900 SODIMM 2Rx8 CL13 1.35v RAM DRAM

Over all memory is memory period. I have used aftermarket memory in all my apple computers. It was simple to put into my Late 2015 iMac pop the cover off . I put the computer screen side down on my bed and placed the new memory in its slots simple as can be. Poped the cover on and right away the computer recognized the new memory. To test it out I opened all of my editing software Lightroom, photoshop, logic X and FCPX, and filled them with many images and video projects , as well as opened every thing in my dock and the computer did not even finch . At 32 Gb of memory I can edit video till my fingers fall off with out having to sacrifice the video I'm trying assemble . With every thing opened I edited a video and had not a problem at all. This memory rocks and did a great big change for my computer I finally got the performance I paid for in this computer . The Late 2015 iMac w i5 processor and fusion drive was maybe 33% faster with 8 GB of memory than my old late 2010 mac book pro with 8 gb of memory after the increase to 32 gb of memory i fell the computer is probably 150% faster than the mac book pro . A great thing is when I open a program I no longer have to wait 10-30 second for it to open it almost instantly opens now . In Photo editing I no longer get gittery performance in Light room when change levels on filters and sliders its smooth as silk almost to smooth. In video editing before as I filled a 2 min video with transitions and sound and effects the effects would stutter and transitions were not smooth the whole video before the memory increase would stutter when played back, now with full effects , and a ton of processing the video plays smoothly with out a hitch . I looked on my activity monitor when every thing was opened and memory pressure was only at 30% as compared to when I tried that with only 8 gb of memory I maxed it out to 100% and the computer would freeze and I would have to restart my computer. I am very pleased with this memory its does exactly what its made to do speed and smooth things out I finally got the computer was looking for when I purchased the iMac in the first place if you don't have sufficient memory or only the base 8gb the computer came with it will not fully perform to what its capable of . For 160 bucks its a cheap quick up grade to make your computer go from ok to sensational in minuets .

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Perfecto empaque llego intacto, bien protegido y de fácil instalación, coincide perfecto con las características mencionadas para este producto y adecuado para mi Mac.

My 8 year old iMac (Late 2015) with 8GB memory had really begun slowing down. This has been one of the most reliable desktop computers I've ever owned. Working though, as I do, with a dozen or so windows open at the same time, the performance was becoming painfully slow. I didn't realize I could expand the memory. When I learned I could expand up to 32GB, I thought, "what do i have to lose?" Before swamping out the memory, I ran a test. From shut down to sign-in, and then to Brave browser and ready to go with 8GB took 48 seconds to sign-in screen; 2 min 57 sec to be online. After adding the 32GB, 21 seconds to sign-in; 1:16 to be online. Wish I had realized I could've done this a few years ago.

This Apple memory update so far is working very well. During the installation process, I had to place each memory piece into slot #2 one at a time while turning the computer on and off, but eventually that process worked.