Free
Multi-GPU (up to 16 gpus)
Multi-Hash (up to 24 million hashes)
Multi-OS (Linux & Windows native binaries)
Multi-Platform (OpenCL & CUDA support)
Multi-Algo (MD4, MD5, SHA1, DCC, NTLM, MySQL, ...)
Fastest multihash MD5 cracker on NVidia cards
Fastest multihash MD5 cracker on ATI 5xxx cards
Supports wordlists (not limited to Brute-Force / Mask-Attack)
Combines Dictionary-Attack with Mask-Attack to launch a Hybrid-Attack
Runs very cautious, you can still watch movies or play games while cracking
Supports pause / resume
The first and only GPU-based Fingerprint-Attack engine
Includes hashcats entire rule engine to modify wordlists on start
... and much more