Valva game FPS

I was wondering if anyone else owns an ati sapphire 4830 (doesnt have to be same brand) and can list me what there fps avg is on high settings. Games I play(ed) in CAL and ESL are DoD:S, CS:S, l4d, or TF2. So pretty much the Valve games. I expected to get a pretty decent high fps range with these games, but im a bit unhappy with my performance in tf2 right now. Here are my specs listed from steam.

Processor Information:
Vendor: AuthenticAMD
Speed: 2812 Mhz
2 logical processors
2 physical processors
HyperThreading: Unsupported <== this normaL?
FCMOV: Supported
SSE2: Supported

Network Information:
Network Speed:

Windows Version:
Windows XP (32 bit)
NTFS: Supported

Video Card:
Driver: ATI Radeon HD 4800 Series
DirectX Driver Name: ati2dvag.dll
Driver Version: 6.14.10.6936
DirectX Driver Version: 6.14.10.6936
Driver Date: 16 Mar 2009
Desktop Color Depth: 32 bits per pixel
Monitor Refresh Rate: 60 Hz
DirectX Card: ATI Radeon HD 4800 Series
VendorID: 0x1002
DeviceID: 0x944c
Number of Monitors: 1
Number of Logical Video Cards: 1
No SLI or Crossfire Detected
Primary Display Resolution: 1440 x 900
Desktop Resolution: 1440 x 900
Primary Display Size: 16.38" x 10.24" (19.29" diag)
41.6cm x 26.0cm (49.0cm diag)
Primary Bus Type Not Detected
Primary VRAM: 512 MB
Supported MSAA Modes: 2x 4x 8x


Sound card:
Audio device: SigmaTel Audio

Memory:
RAM: 1560 Mb

Miscellaneous:
UI Language: English
Microphone: Not set
Media Type: DVD
Total Hard Disk Space Available: 152617 Mb
Largest Free Hard Disk Block: 121047 Mb
OS Install Date: Apr 14 2009
Installed Packages: Firefox

Can anyone tell me why the last one bold about p-bus not being detected? Yes I have new drivers, updates, no yellow ? marks in device manager, pretty much all up to date I believe... Maybe I'm just expecting too much? In tf2 though... I use to get no lagg in action with my old x800... Well thanks in advance.