would getting 2gb of RAM make a difference in Need For Speed - Most Wanted

[builder22]

currently have 1gb ram pc3200, running at 220mhz (gt7800, opteron [email protected]), i notice some stutters in the game, even at medium detail
is a 2gb kit likely to make any difference ?

 

[builder22]

ye, i looked in task manager and it was about 700 too