E6600 gegen Athlon 6000+

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Our Core 2 Duo E6750 test system is at something of a disadvantage here, because its Asus P5K Deluxe motherboard appears to consume more power at idle (and presumably also under load) than the most 975X boards, including the Intel D975XBX2 board on which we tested the other Core 2 processors.

The E6750's idle power draw is also higher because of a limitation of the processor. Like most Core 2 processors, the E6750's minimum clock multiplier is 6X. In most Core 2 chips with a base FSB clock of 266MHz, that means the CPU's lowest speed when throttled via SpeedStep or C1E halt is 1.6GHz. In the E6750, the 6X multiplier works out to a minimum idle clock of 2GHz. The E6750's higher minimum clock will limit the effectiveness of power-saving schemes like SpeedStep.

Das Asus P5K Deluxe braucht selbst bei Idle rund 15-20W mehr als vergleichbare P965/P35 Mainboards.