OCIA.net has posted their review of the Intel Core i5 661 Processor

Codenamed Clarkdale, the new LGA 1156 i3 / i5 chips are built on the Westmere 32nm process, joining the previous 45nm Bloomfield and Lynnfield releases in the Nehalem family. Another new idea Intel implemented in these chips is adding a GPU core directly on the processor alongside the CPU. Three new chipsets were also introduced that allow you to run one of these GPU-equipped processors without a discrete video card. Intel Turbo Boost and Hyper-Threading make an appearance in the i5 series as well. All of this and more just ahead as we take a detailed look at the Intel Core i5 661 processor.

Intel Core i5 661 Processor Review