"Another, more important, improvement of the R350 GPU is higher clock speeds. The clock speed of the RADEON 9700 PRO is 325 MHz and ATI has managed to improve the core clock speed of the RADEON 9800 PRO to 380MHz. Not bad. That is a 17% increase in core clock speed even with staying with the .15u manufacturing process that was used on the R300 GPU."
FULL STORY @ OCADDICTION (http://www.ocaddiction.com/reviews/video/radeon9800/)