The "DDR3 FACTOR" is meaningless for desktop apps, just look at Ci7.
Its tough call , may be it differs from architecture to architecture , so untill I see the performance difference b/w ddr2 & ddr3 on Deneb , I won't assume any thing.
But I am not expecting any huge but marginal gains in performance of Deneb going from ddr2 to ddr3.
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