Heh "VRAM to burn" made me smile

Why you need to use it all, doesn't the thing use VRAM to buffer stuff when it's not full (=better FPS)?
I've done rather complete "TOTO" for my Oblivion: http://devnull.sweetdanger.net/obliviontextureoverhaul.html
I'm using BT2048/QN2048 (4096 was "too sharp" for my likings for distance lands), RAEVWD and QTP3: Redimized (to go with loads of other stuff, like Better Cities, weather, tree+flora+grass textures, etc)... I've been happy with QTP Redimized so far. After reading this, I plan to test QTP 3 Full next, and this Vibrant many of you mentioned too.
I'm surprised some of you say that 60 fps is "a dream", as I get it with my ASUS g73jw gaming laptop (and I run RAEVWD and other stuff, see below). It has the GeForce GTX 460M with 1.5GB, 6GB DDR3, Quad Core i7 (1.73 MHz, 2.9MHz or such with onboard turbo) and 1920x1080 display.
Maybe it's the i7 CPU that makes it work "OK" for me?
On the wilderness, I get 45-60 pretty much all the time (I cap it at 60 with http://www.tesnexus.com/downloads/file.php?id=23208).
Uncapped it's as high as 90 at times, with 120+ peaks. (not the best on 60Hz laptop monitor, which is why I cap it)
In Imperial City (Better Cities in use), I go between 30 and 60, rarely it drops to 20 and that's mostly when there's lots of NPCs in the view.
The Oblivion engine has a lot of drawbacks, one of them is a missing support for multi-core processors, but well, the engine was developed before 2006...
Really? I've tweaked the Oblivion.ini quite a bit (using this as reference: http://www.tweakguides.com/Oblivion_8.html), e.g. what I believe to be "multi-core settings", cell buffers, preloadsizelimit, background loading, grass distance, etc.
I haven't tested all kinds of variables, but these work fine for me (most relevant changes):
uInterior Cell Buffer=12
uExterior Cell Buffer=144
iPreloadSizeLimit=209715200
iThreads=16
iOpenMPLevel=32
Could go even higher with preload, but that has worked so far, might test how high it goes (as there's room with my 6GB). Haven't logged core usage, so no idea how well the multi-core/threads really work, apart from good perf in the game.
p.s. interestingly generating DistantLOD with TES4 LOD dropped my wilderness FPS to 10-15 (from that 45-60+), which was odd. I wasted quite a bit of time on that, as I thought it was some of the mods that caused the fps to be that low