This is a x64 version of patchdiff2 with renaming option. It's based on jjaa's modification from this thread http://www.ownedcore.com/forums/worl...atchdiff2.html ([IDA Plugin] Modded PatchDiff2), I've only fixed it a bit for x64 and compiled from last SVN revision.
Download (contains both x86 and x64 version) - patchdiff2_mod.7z