Intel D 820 Dual Core Processor
 

As mentioned earlier in the article we were not originally going to compare the 820 to the FX57/X2/EE due to the latter chips being much more expensive than the Pentium D however what was an afterthought was well worth including in the end. It is clear when comparing the Intel chip to those three products there are some situations (such as encoding) where the higher clock speeds, system bandwidths and architectures will help you get value for money. So now we move onto Photoshop, what can we say? the 820 is a phenomenal performer, exceeding even the X2 4800+ in terms of overall performance. To date the Pentium D is the fastest chip we have tested in Photoshop performance.

http://www.driverheaven.net/reviews/dualcoreintel/