Quote Originally Posted by JF-AMD View Post
The comparison of the X5570 to the Opteron 2435 is always interesting. They have a raw performance edge, but the processor is priced at $1386 vs our $1019. That makes it 36% more expensive. If they have less than a 36% performance advantage (which is almost always the case) then the AMD is going to deliver better price performance.

I've done the math in other places because there are some that will arge those are the list prices and system price is different. When you configure like for like system on, for instance, Dell's site, you see the price delta go UP and at the platform level the price differential was higher.
I am little surprised to hear such things from a marketing guy.
First, a cpu price difference is never proportional to actual performance difference even in the same line of cpus. But you probably know it even better then me.
Second, your performance/price equation is partially useful for home PC user but in busines/server space it is completely BS. Even if X5570 only 20% faster then 2435 do you really think that %20 more work which potentially can be done in, lets say, two years, costs only $250 diff between cpus?