Graphics card or CPU?

[Alexraptor]

Just recently got Real Environment Xtreme, and unfortunatley i cant use the HD 4096x4096 textures.
The TEXTURE_MAX_LOAD=4096 setting required for them causes some terrible stuttering.

So what i would like to know what part is responsible for this and needs to be upgraded, the graphics card or the CPU?

My graphics card is a GeForce 9800GTX+ 512mb with a 256bit memory interface.
My CPU is an Intel Core 2 Duo E6700 overclocked to 3ghz with a 1333mhz FSB.

Need to get it figured out so i can prioritize upgrades

[Bjoern]

Actually, both CPU and video card are more than enough for 4096 size textures.
I'd rather defragment the FSX drive first and then play around with the Texture_Bandwidth_Mult setting in the fsx.cfg.

[Alexraptor]

already defragmented twice in the past few days, though FSX is on the main C drive. also tried playing around with Texture_Bandwidht_Mult first trying to set it to 160 and then 400 but it did not make any difference.

[timest]

already defragmented twice in the past few days, though FSX is on the main C drive. also tried playing around with Texture_Bandwidht_Mult first trying to set it to 160 and then 400 but it did not make any difference.

Alex, did you use the DXT5 option in REX?

[Alexraptor]

Sure did.

[Bjoern]

The maximum setting for the multiplicator is 80, by the way. Larger values are ignored by FSX.

[Alexraptor]

I tried setting it to 80 and sure enough it worked!
I am now flying with High-Def 4096x4096 clouds, thanks!

Now if only i could resolve the other stutter problems im having(see other thread).

[Bjoern]

You're welcome, Alex.