Not a massive saving but the cheapest i've seen it.
Quidco also available.
The Intel Core 2 quad-core processor is the world's first quad-core desktop processor, delivering the latest in cutting-edge processor technology. This processor has been designed for your customers who are PC enthusiasts.
Today's multimedia applications such as video/audio editing and rendering, and 3D modeling focus on threaded computing for performance and demonstrate amazing scalability with quad-core processors. The Intel Core 2 quad-core processor takes on several tasks with significant improvements in system responsiveness by off-loading certain tasks to specific cores, thus freeing up additional processor resources for other tasks so your customers can get more done in less time!
Enhanced Halt State (C1E)
Enhanced Intel SpeedStep Technology
Execute Disable Bit 1
Intel EM64T 2
Intel Thermal Monitor 2
Intel Virtualization Technology
64-bit support Yes
Clock multiplier 9
Fsb (mhz) 1066
Level 2 cache (kb) 2 x 4096 (each L2 cach is shared between 2 cores)
Manufacturing process 65nm
Number of cores 4
Socket 775 (LGA775)
Clock speed 2.4Ghz