Intel Pentium 150
The Pentium 150 wasn't sold much because it had a slower FSB compared to the Pentium 133 and thus was less efficient and most people went for a Pentium 166 instead if they wanted performance. See the benchmarks that show the performance of the Pentium 150. Especially games (MDK, Doom and Quake) run quite poor on this CPU. Office-like applications don't need a fast bus or fast access to a graphics card so for those applications this CPU runs just fine.
Basically the Pentium 150 is just like the Pentium 133 but then with a different FSB / multiplier configuration.

