I have had my computer since late 2017, so ~7.5 years. That is the second longest that any computer has remained fully functional for me since 1985. I am now having trouble with Photoshop. Sometimes it crashes, sometimes I get a GPU error, and the replace tool just cannot function. Most things come back if I close it and reopen, and/or reboot (not the replace tool). I am wondering if I could get back to full performance if I upgraded the CPU and/or the graphics card, or should I get a whole new computer? I would have some worries about being able to do the upgrade successfully, as I have never done that before. The most I have done is add RAM to an earlier machine. The current CPU is a Intel(R) Core(TM) i5-8600K CPU @ 3.60GHz 3.60 GHz, and the graphics card is an NVIDIA GeForce GTX 1060 3GB. What say those who are more knowledgeable?
Did you check current resource usage.
Restart computer.
Open up Task Manager (TM) to Processes view.
What is RAM used without any other apps open?
Open Photoshop (do not open any files) .Wait for Photoshop to load completely.
Check TM and see how much RAM and is being used Total and by Photoshop
Go to Performance (graph) view
Check GPU use.
Now, open an image file in Photoshop.
Check Task Manager (TM) Processes view, how much RAM and is being used Total and by Photoshop
Go to Performance(graph) view
Check GPU use.
Is GPU being used?
Now open all the other apps you would use while doing photoshop
Recheck RAM/GPU and even CPU use.
Now decide if you should upgrade RAM (32GB at least) and GPU (8GB dedicated is good) to the best (RAM/GPU) your motherboard can support, and you can afford.
For GPU, make sure you have the latest drivers installed. If you do, and it is still causing issues, then upgrade to the best one your motherboard can support, and you can afford. Try for at least 8GB dedicated.
Get a SSD if you are not already using it for photo files.
Have you tried any other photo editor, like Gimp to see how your computer handles it?
Gimp used 186MB RAM (0MB GPU RAM) when I opened a 7.5MB image.