I hear you. I keep debating on whether or not to just reinstall the OS and upgrade the GPU and let it go for a few more years. Ivy Bridge is still a great chip and there is nothing wrong it other than it could use a reinstall and maybe OS upgrade. I installed the OS in 2013.
Those 64 thread chips would sure boost point and time production but they are also likely to run in the $1500 range and the memory prices are sky high right now.