OP, I'd imagine, but your specs make a point Dave.
620m is about 12 years old or thereabouts and gets outperformed by my laptop two laptops ago (i5, 2011).
I'm prepared to bet you can fire up Reaper or whatever on that and get a good jam going.
I keep a very old very dusty Core2Quad box handy. It rarely gets used but, performance wise, I'd have no concerns about making a record on it.
SSD upgrade in any computer is a no brainer, in my opinion, whether 'necessary' or not.
They've been around long enough for prices to have come down and durability to have been proven. It's a reasonably cheap and easy way to breathe new life into an older machine.
Ram upgrade isn't quite the same story. There's no point upgrading to 16GB ram if the 8GB you have aren't getting used.
Saying that I've been a member here for longer than I care to remember and I don't think anyone's ever gone 'oh, fair enough' to that statement.