I'm not sure, for the money, if the Pentium D 955 Extreme Edition is a better buy over the E7600 Core 2 Duo. The Pentium D is a 3.467 ghz. 1066 mh fsb 4 mb L2 cache. The E7600 is 3.067 ghz. 1066 mhz. fsb 3072 mb L2 cache. The Pentium D has 2 x 16 kb L1 cache, where the E7600 has 2 x 32 kb L1 cache. In comparison, you'd think the Pentium D is a better deal for the money. It's multiplier is 13, where the E7600 is 11. Now the E7600 has supplemental SSE3, along with SSE4.1 and EM64T technology under multiprocessing. The Pentium D offers hyper-threading. They both offer Virtualization technology. The Pentium D's thermal design power (w) is 130, while the E7600 is 65. I noticed that the benchmark showed the E7600 better, but I'm wondering if they put it against hyper-threading or not. Right now, I can pick up the E7600 for $111.00 including shipping. On the other hand, the Pentium D is going for $159.00, but it's on sale for $59.00 and shipping is free. It's going in a Dell Dimension 9100. The motherboard is the i945P. Can someone shed some light on my dilemma please? Thanks!!