the big bang theory - What is the IQ of Raj?

Sheldon obviously considers Raj to be more intelligent than Leonard. It's demeonstrated numerous times.

What's more Raj is arguably the most successful scientist of the 3. Certainly more successful than Leonard.

Raj is very close to Sheldon in IQ. Probably around 178-180.

Kripke is Sheldon's intellectual superior. He regularly surpasses Sheldon's work in their field, and outsmarts him, WITHOUT a photographic memory. This would imply his base IQ is higher, to compensate for his physical disadvantage