ATI Radeon HD 3xxx IGP series chart

model Interface max core clock (MHz) max memory (Mb) max memory clock (Mhz) max Fillrate (MT/s) memory bus type memory bus width (bit)
Radeon HD 3000  onboard PCIe  350  128,256  system    system  
Radeon HD 3100  onboard PCIe  300  128,256  system  1.2 GT/s  system  
Radeon HD 3200  onboard PCIe  500  128,256,512  system  2 GT/s  system  32
Radeon HD 3300  onboard PCIe  700  128,256  system  2.8 GT/s  system/local frame buffer