Tom's Hardware > All Reviews > Components > CPU > The 65 nm Pentium D 900's Coming Out Party

Thermal Design Power Overview

01:53 - Saturday 7 January 2006 by Patrick Schmid

Single Core Thermal Design Power
(6X1 Series)	TDP	Tcase
661	86 W	69.2 °C
651	86 W	69.2 °C
641	86 W	69.2 °C
631	86 W	69.2 °C
(600 Series)	TDP	Tcase
670	115 W	70.8 °C
660	115 W	70.8 °C
650	84 W	66.6 °C
640	84 W	66.6 °C
630	84 W	66.6 °C
(500 Series)	TDP	Tcase
570/570J/571	115 W	72.8 °C
560/560J/561	115 W	72.8 °C
550/550J/551	84/115 W	72.8 °C
540/540J/541	84 W	67.7 °C
530/530J/531	84 W	67.7 °C
520/520J/521	84 W	67.7 °C

Intel says its Pentium 4 6x1 devices have a TDP of 86 Watts, which are thus at the same level as that of AMD's powerful single-core processors. Yet we have to add that the processors do not seem to make use of the power consumption specs, since they run considerably cooler than their 90-nm counterparts. At the same time, we have to note that AMD's SOI technology (silicon on insulator) is capable of allowing AMD's CPUs to achieve a similar power consumption level with a 90-nm process- although production costs are higher.

Dual Core Thermal Design Power
(900 Series)	TDP	Tcase
950	130 W	68.6 °C
940	130 W	68.6 °C
930	95 W	63.4 °C
920	95 W	63.4 °C
(800 Series)	TDP	Tcase
840	130 W	69.8 °C
830	130 W	69.8 °C
820	95 W	64.1 °C

Processor Pricing

Processor	Price (per 1000)
Pentium D 950	$637
Pentium D 940	$423
Pentium D 930	$316
Pentium D 920	$241
Pentium 661	$401
Pentium 651	$273
Pentium 641	$218
Pentium 631	$178

The pricing has not changed very much. While the top models are rather expensive and thus do not get our best recommendation, it is nice to see that the entry model Pentium D 920 should already be available for around $250.