Intel i486 DX2/66
Unlike this 486DX2/66 it has no build on heatsink. This allowed people to stick their own heatsink/fan solution onto it as the 486DX2/66 didn't run happy without heatsink.
This version of the DX2/66 is the fastest Intel ever made. See the benchmarks where it is ahead on the other DX2/66. The performance difference can be declared because the DX2/66 came in two version. A P24 and P24D. Difference is that the P24 only has write-through L1 cache and the P24D has write-back L1 cache, which is faster.

