You could still easily build a $800-$900 system that would dramatically jump forward from that machine.

$700 in 2014 is now $971 inflation adjusted (BLS calculator).

RTX 3060 12gb $180 (eBay). Sub $200 CPU (~5-7 times faster than yours). 16gb DDR4 $100-$120. $90 PSU. $100 motherboard. WD Black 1tb SSD $120. Roughly $800 (which inflation adjusted beats your $700).

Right now is a rather amazing time for CPUs, even though RAM prices have gone crazy.

Assume you find some deals somewhere in there, you could do slightly better with either pricing or components.