Seems a lot of people are struggling and having graphics issue. More over I have had people ask me if 3.9 will work etc. Perhaps if we start a post listing system specs, graphics card and driver. It will serve as a reference for players and a place we can share tweaks?

AMD 2.7 ghz
(5200 64x dual)
2gig DDR2
Radeon x1950 GT (Omega 3.8.442 drivers!)

Toribash 3.9 runs great at over 30 fps using shaders. Ray tracing runs at around 25fps but places a heavy load on the GPU.
Anyway there you go, use it dont use it and post if able.

NB: Drivers - I do not like or advocate ATI's official drivers especially for older cards. Even on new chipsets they are resource hunger in extreme.If your old radeon is struggling the omega drivers as well as many other third party ones may help you a lot.

This doesn't belong in support ~ Vox

60fps on any setting at any resolution I've tried.

CPU: Intel i7 920
MB : ASUS Rampage II Extreme
GPU: ATI Radeon HD4980X2
RAM: 3GB DDR3 Corsair 1333Mhz CL9

[EDIT] with fixed frame-rate off I get between 400 (during physics calculations) and 860 fps (with ghosts off)

Also 60 fps on any settings, at 1680*1050
My specs:
GeForce 8800GTX
Core 2 Duo @ 3ghz
2 gb RAM

CPU: Intel i7 920
MB: Asus P6T SE
GPU:  Asus EAH5850
RAM: 6144 MB 1600mhz

Using /opt fixedframerate Shader + Traytracking (while playing) I have average of +100 fps.
Without shaders it's 940 fps xD

Edit: Vox: DO WANT!

Pentium Dual Core E6300 CPU @ 2.8 GHz
3.25 GB RAM
Factory Overclocked Nvidia GeForce 8800 GT

Resolution:
1440x900

All graphical options are selected.

Framerate:
30, minimal-to-no lag
60, gentle but consistent lag

On my intel-macbook it runs 23 fps with shaders + ray-tracing

With out ray tracing should see a far better performance, As my machine proves older rigs run well enough.