Reviewed on July 17, 2007The quad-core Core 2 Extreme QX6850 keeps the desktop CPU performance belt tied firmly around Intel's waist at a price that helps offset the lack of sizable performance gains. New products at the end of the year may outclass this new chip when they arrive, but for now, the QX6850 reigns supreme.TAGS:Intel Core 2 Extreme, quad-core, motherboard, clock speed, bus, Intel, Intel Core 2 Duo, CPU, multimedia, AMD, chipset