ya i've seen those graphs before. I have heard they are inaccurate from many computer experts. Althoughm its just specualtion. Also all the specs for Ps3 are projected, not set in stone. Ign is a biased site for xbox360, wheras gamespot is biased for ps3.
-the only graph i Know to be false is the memory bandwidth, because the 10mb of embedded ram's bandwidth cannot be simply added on to the other bandwidths. It also is inaccurate because the bandwisth of the embedded ram is as someone described to me as a "potential" speed that teh path allows for, but the hardware will not allow for it to go that fast. Making it just propaganda. I would also sepcualte that genral processing power is irelevant because we are talking about video game platforms. The only way i have heard this argument to go is to PS3, but the xbox360 wins on its video card (in some areas), online interface, and games.