Is FRM more difficult than CFA?

Could you elaborate on the comparative difficulty between the Financial Risk Manager (FRM) certification and the Chartered Financial Analyst (CFA) program? Is the FRM indeed more challenging, and if so, in what specific areas? Does it require a deeper understanding of risk management methodologies or does it simply have a steeper learning curve? Are the exams more rigorous, or is it the sheer volume of material that makes it seem more daunting? Are there any particular skills or backgrounds that would better prepare someone for the FRM over the CFA?