I recently updated my parents nelson eBible to V4 on their five year old computer. V4 was unusable. There was approximately a 15 second delay between any commands and the programs response (switching tabs, etc.). Also the display was horrible - the icons were all messed up, etc.
I knew the system would be slow - but it benchmarks out to be about the same as a netbook so I thought I would give it a try.
Just before I uninstalled v4, I threw in a ATI Radeon 9200se video card I had laying around (64 meg onboard).
All of a sudden the program worked perfectly. Actually too perfect. V4 was more responsive on this 5 year old computer than my main two systems (one being 3 years old, and the other 3 months old).
Just as an example. The information panel would fully populate within a second. On my newer faster systems this takes 5 - 10 seconds.
Now I know that I have significantly more resources in mine - but things like the information window are only searching my prioritized items so the amount of effort by the program should be about the same.
Also on the 5 year old computer (that was bottom of the line back then!) the tabs switch instantly with no lag at all. If I was only using V4 and comparing the computers, I would have thought that this outdated rig was a rocket ship.
Also, on my laptop (an aspire 1410) which has 64meg dedicated video card with over a gig of shared memory, according to my video card software V4 only ever uses 7 - 12 megs of memory.