I built a system about 2 years ago that consists of:
  GIGABYTE GA-EP43T-UD3L LGA 775 Intel P43 ATX Intel Motherboard 
  Intel Core2 Duo E7500 Wolfdale 2.93GHz LGA 775 65W Dual-Core Processor  BX80571E7500 
  G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory  Model F3-12800CL9D-4GBRL 
  GeForce GTS 250 512MB 256-bit DDR3 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card  
  Samsung by Seagate Spinpoint F3 HD502HJ/ST500DM005 500GB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive    
  Rosewill Green Series RG700-S12 700W Continuous @40°C,80 PLUS Certified,Single 12V Rail,Active PFC Power Supply   
  Frame rates have been sorry lately. Would a new vid card help or is the processor a bottleneck? If the processor is a problem, is it upgradeable without a new motherboard?
 Thanks!
 230G