From the past, my 05 Compaq webbrowser, I did a CPU-Z and discovered the GeForce FX5200 128 AGP was 03, So picked up an ASUS Sony FX5200 AGP from a Vario? whose psu fried motherboard (therefore cheap) intended for another older assembly and tried it and it appears a vast improvement.
I have also purchased an HD4650 AGP (used) yo see what it does.
So YO comments besides wasting time?