RSA performance on Athlon64 vs. Itanium

I just picked up an Athlon64 3200+, which runs at a 2 GHz clock speed. Using the Red Hat for AMD64 beta and the version of OpenSSL that ships with that beta, I get 922 1024-bit RSA signs per second. This is a tad less RSA signatures per second than I have seen on an 800MHz Itanium using highly optimized assembler. That's rather poor performance on the Athlon64. Are the figures that I am seeing typical for OpenSSL on the Athlon64? Has anybody here seen different figures using optimized code? Thanks, --Lucky Green