DriverHeaven posted a review on PC3 14400 DDR3 memory from OCZ and Kingston

When you want to buy the fastest hardware there is always a premium. In the DDR3 memory market the fastest available components right now are 1866MHz modules with CAS 8 timings or 1800MHz products with CAS 7 timings.

That said, there are however a number of 1800MHz modules rated at CAS 8 which are considerably less expensive. Today we are looking at two such products from OCZ and Kingston to find out how much performance we give away when pitted against Corsairs CAS 7 Dominator modules. We will also find out if the review products can in fact match, or exceed, the more expensive sticks when overclocked. If successful it would make these products excellent value for money.

OCZ and Kingston PC3 14400 DDR3 Review