Hutchison's campaign said Wednesday she raised more than $6 million in the last half of 2009 and had more than $12.3 million in available cash heading into January.
Perry's campaign says he raised $7.1 million in the same six-month period and had $11.6 million in the bank heading into 2010.
The campaigns released those totals as they prepared to file full six-month fundraising reports with the Texas Ethics Commission by the end of the week.
The Republican primary is March 2. The two well-known candidates, along with Republican Debra Medina, will debate on television Thursday night.