Intel i486 SX33
The 486SX33 was a nice CPU back in the day. Certainly not the fastest one but it provided decent performance for its price point. Especially since most software didn't need a co-processor (FPU) which the 486SX didn't have.
This particular CPU is basically a one-of-million 486SX built in 1993. However, if you look closely the Intel logo is printed at an angle. I don't recall seeing other CPU's that have such a big deviation in its printed logo. From the looks of it, it seems like a genuine Intel part.