How many framerates would I get for UT2k4?

[Prince of China]

I played UT2k3 at my local gaming area and I ran the game at 1600x1200, 16 bit colour, and all the detail options at the highest with the additional stuff checked on(Turned on).
The machine was an AMD Athlon XP 1800(1.53Ghz)256 MB DDR ram and GeForce 4 Ti4600 128MB. I got arouind 30-50 FPS in general.(Or something like that, it was very playable.)
I just played Unreal Tournament 2003 demo on my computer, but unfortunetly, I can't turn up all the options.
How much framerates would I get if I turned up all the options and details and ran the game at 1600x1200 16 bit colour?
I have a Pentium 4 1.8Ghz, 512 MB DDR ram and an ATI Radeon 9600 PRO 128MB ram. I also managed to finally update my drivers to the latest Omega drivers. And how many framerates for Unreal Tournament 2004?

www.omegacorner.com (You'll see what I'm talking about:)

Thanks in advance.
Edit: I would also like to add that I would turn off 'Reduce mouse lag' which gives my about an extra 12 FPS.

 

[blahblahblah]

Why do you need to play at that high of a resolution? Better compromise maybe using AA. With my 9600 Pro, Athlon XP 2800 system I was able to use 4 AA with all options turned on at a resolution of 1024 x 768 (UT 2003). And my frame rates (except for inferno) were above 30 fps.

 

[FictiousWill]

Don't know what you'd get put I get a near constant 40fps at 1024x768 will all details max on. I've got a ti4200 and amd athlon 2800+. Dips down to the 20s in large open areas. By friday I'll have a new system! woot etc etc.