In 1995, I wrote down the specs for my "dream machine". Comparing it against the machine I have today:

Item19952025Increase
RAM32 MB64 GB2000
GPU RAM16 MB8 GB500
HDD4 GB1 TB250
HDD speed10 MB/s2 GB/s200
Processor150 MHz5.10 GHz34
Monitor21"27"1.3
Resolution2048x15361920x12000.73

Clearly, RAM has seen the biggest growth. Low cost, high demand.
Followed by the hard disk - both on capacity and speed.

The processor speed increase, in comparison, is modest.

What's surprising is that my monitor today isn't that much bigger than what I wanted. The resolution is actually lower than what I wanted 30 years ago! Clearly, I overestimated how important screen resolution would be.