The algorithm has 1/4 of the iterations of regular Cryptonight and 1/2 of the iterations of Cryptonight Lite.  It still has the 2MB scratchpad which makes it more suited for video cards or higher end processors.  The less iterations make it so your card/cpu can do more hashes/s.

You can find this information in the hashing code of the coin or by looking at an open source miner like xmr stak. 

Cryptonight - 0x80000 iterations = 524288 iterations.
Cryptonight Lite - 0x40000 iteratoins = 262144 iterations.
Cryptonight Superfast - 0x20000 iteartions = 131072 iterations.