New games running slow / jumpy - Specs included for PC and games

[moy]

Hey peeps,

My PC:
Windows Vista (32)
Inter Core 2 Quad CPU - Q6600 @ 2.40GHz
4 GB RAM DDR PC2-6400 (4 sticks of 1GB).
NVIDIA GeForce 8500 GT

I've recently got 2 new PC games to play on: Street Fighter IV and The Ghostbusters Game.

I've put the specs of both games below my post.

First I ran street fighter, all loads in OK but when I actually get to a fight the game runs soooooo slow. Then I loaded Ghostbusters up and as soon as I got past the intro/cut scenes and into the game this was so jumpy it looked like it was running 1 frame a second. I tried lowering all the settings on both games but still the game does not run well - which I would of thought my PC could more than handle. I have updated my Gfx card drivers.

I've a bit stuck what to do next so I would really appreciate some help on this. Thanks a lot, I've posted both the games specs below:

Street Fighter IV

Minimum specs:

Windows XP
Intel Pentium4 2.0GHz or higher
1GB RAM or higher
10GB of free HDD space or more
NVIDIA GeForce6600 series, ATI Radeon(TM) X1600 or higher or higher, DirectX 9.0c/Shader3.0 or higher compatible, VRAM ?F256MB or higher
DirectSound compatible, DirectX 9.0c (or higher) compatible
Mouse, Keyboard

Recommended Specs:

Windows Vista
Intel Core2Duo 2.0GHz or higher
2GB RAM or higher
10GB of free HDD space or more
NVIDIA GeForce8600 series or higher, ATI Radeon(TM) X 1900 or higher, DirectX 9.0c/Shader3.0 or higher compatible, VRAM ?F512MB or higher
DirectSound compatible, DirectX 9.0c (or higher) compatible
Gamepad ?FXbox360 Controller for Windows

The Ghostbusters Game

Minimum specs:

OS: Windows XP SP2, Windows Vista 32-bit and 64-bit
Processor: Intel Core 2 Duo E4300 or AMD Athlon X2 +3800 *
Memory: 2 GB RAM
Hard Drive Space: 9 GB free hard disk space
DVD-Rom Drive: Dual layer, 8X speed or faster
Video Card: ATI Radeon X1800-series 512 MB, Intel G45 Express Chipset, NVIDIA GeForce 8400 512MB**
Sound: DirectX 9.0c-compatible sound card
Direct X: DirectX version 9.0c (included) or higher
Input: Keyboard, mouse, or Xbox 360 gamepad
Other: Internet connection required for first-time authentication (connection not required after authentication)
* Dual core processors, such as the Intel Pentium D 805, are not supported.
** Video cards that have only 256MB of RAM are not supported.


Recommended Specs:

OS: Windows XP SP2, Windows Vista
Processor: Intel Core 2 Duo E8400 or equivalent
Memory: 4 GB RAM
Video Card: ATI Radeon HD 4800 series, NVIDIA GeForce GTX 260 series or higher video card

[manooly]

I believe your bottlekneck is going to be your 8500GT video card. I use to have the exact card in my PC. I upgraded to a NVIDIA 8800GT with 512MB. Major difference in gameplay performance.