TechSpot posted a review on the Intel Pentium E2140 & E2160 review

So what are these new Pentium dual-core processors? Well, in essence
they are stripped down Conroe processors featuring a tiny 1MB L2 cache with
an 800MHz FSB.

There are two versions currently available, the Pentium E2140 and the E2160. Clocked at 1.8GHz the E2160 matches the E4300 in terms of clock speed while featuring half as much L2 cache. The E2140 on the other hand is now the slowest desktop "Core 2" processor, clocked at just 1.6GHz. With both CPUs priced below the $100 mark ($84 and $99, respectively), this should make for an interesting race against its more expensive siblings.

Intel Pentium E2140 & E2160 Review