Originally Posted By: joemikeb
Bumping your RAM up to 8 GB would have a significantly greater effect on performance than an SSD on an iMac of that vintage and according to Apple's instructions that upgrade is a cinch to perform. The difficulty might be finding the correct type of memory DIMMs as they are long out of production.(Emphasis added)

Originally Posted By: deniro
Crucial has the correct RAM.

Originally Posted By: deniro
I decided to buy an i7 imac for $500 from Mac of all Trades. This model:

https://everymac.com/systems/apple/imac/...bolt-specs.html

8GB RAM, AMD Radeon 6770M, El Capitan, listed in excellent condition at Mac of all Trades, free shipping. (Emphasis added)

Your new iMac has already got joemike's suggested 8 GB, but there may be a typo involved, because

Originally Posted By: Mactracker
Maximum Memory 32 GB (Actual) 16 GB (Apple).

The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire