I just upgraded from the following :
1 GB DDR400 RAM
My frame rates have remainded unchanged..I run my settings fairly high (the same as my old system)..... For example on approach to KSEA at 80% AI traffic with an ad-on aircraft such as the PDMG or WILCO CRJ, my frames were around 14-15 on the old system ,and the same on the new....
i thought changing both the CPU and GPU will increase them.... I do get good frames in less-intense scenery areas and in clouds, but no change in heavy scenery areas.
I have tried various drivers for both the vid card and mobo(ASUS A8V deluxe) with no avail....
The next step is to take the computer in for a hardware scan.. I think there might be a memory leak, a faulty chipset or CPU , or a BIOS problem.
My old system ran like a charm though. Especially with the Omega drivers!