so your saying overhaul mods reduce fps more than textures? ive got ooo installed at the minute so i'll experiment with and without it and see what fps i get.
Whether that's what Peter ID is saying*, I'll agree anyway.

Also, RAEVWD (especially with everything switched on) goes a long way to cutting down FPS. Oh, and AWLS with its own RAEVWD additions. And Better Cities in full. As do combinations of OBGEv2 shaders (e.g., HBAO - ouch!) on top of that, with maxed AF and possibly AA.
Texture packs, per se, don't seem to do much at all. I've tried using the largest textures for literally
everything, along with the largest LOD files, and yeah, no problems, and I have only 1/3 your VRAM!

But yeah, tons of NPCs and critters with AI, and abundant scripts left and right, will kill your FPS before QTP3 even
touches it.
* edit: It is.
edit2: I found an interesting snippet of information - apparently, the GT 445M has a maximum VRAM of 1536MB, or 1.5GB... :shrug: Check your specs carefully, Sam. Hm, though it's possible there's a later model... eh, it could be 3GB. I'll have another look.