The only time I was forced to change from my lovely, smooth, FS 2004... (I hate using the term "FS9", 'cos that's not what it says on the box!)...to my FSX, was when my trusty Dell Tower computer with its Intel Pentium 4, dual 2.8 HHz, and its low power requirements nVidia 9500GT Graphics card, finally gave up the ghost on me, resulting in me having to purchase a complete Advent* tower computer with its fast i7 processor, (£600 the lot!)..spec below....suitable to run FSX flat-out!
Otherwise the ancient Pentium 4, 2.8, did the job admirably, and smoothly, for FS 2004!
(Note: If you've got an old Computer, FS 2004 runs beautifully...trust me!).
That is the time that it finally proved to me that FSX
really does require a super-fast, central processor, to get acceptable results!
(FS 2004 was/is OK with older stuff!)
FSX works wonders...smoothly!.... with a Super-Fast central processor...JOY!....

...!
Paul...enjoying BOTH FS 2004...and FSX!...

...!
* ....600 English Pounds..special offer.... and a big kiss from the sales lady.....>>>
http://www.adventcomputers.co.uk/product/a...3415-desktop-pc
Paul Fosbery.
Windows 11. HP Vitus 15L Ryzen Desktop Gaming Computer + BenQ 24-inch Gaming Monitor. Thrustmaster T Flight Stick X.
A few tasty Motorbikes!