Apple's highest resolution iMac ever, the new 27-inch iMac with 5K Retina display, was recently announced and went on sale yesterday starting at $2,499. But even though it features the highest resolution 5K IPS display on the market at a relatively reasonable price considering there's an entire powerful computer behind it, upgrading the stock 8GB of RAM when ordering from Apple to 16GB or 32GB will cost you an additional $200 and $600, respectively. I don't know about you, but paying $600 extra for 32GB is just unacceptable.
Fortunately, just like the 2013 non-Retina 27-inch iMac, Apple's iMac with 5K Retina display features user upgradeable memory that is easily accessible from the back of the machine without any tools required. Third party memory manufacturers like Crucial offer a compatible 16GB kit that is identical to the stock RAM that Apple puts into the 27-inch 5K Retina iMac, but costs way less. The Crucial 16GB upgrade kit will cost you less than $140, and it consists of two 8GB DDR3 1600 MHz RAM modules - which is the same configuration that Apple uses. Two 16GB Crucial RAM kits will upgrade your iMac to 32GB for less than $280 compared to the absurd markup of $600 Apple charges for its RAM upgrade option.