Product comparison · 2 cpus

Fujitsu Pentium D 840 vs Fujitsu Pentium IV 660

14specifications compared
8differ
6identical
1known for one product only

Key differences

The Fujitsu Pentium IV 660 has 0.4 GHz more processor base frequency than the Fujitsu Pentium D 840 (3.6 GHz vs 3.2 GHz). The Fujitsu Pentium IV 660 has 0.4 GHz more l2 cache speed than the Fujitsu Pentium D 840 (3.6 GHz vs 3.2 GHz). The Fujitsu Pentium D 840 has 15 W more thermal Design Power (TDP) than the Fujitsu Pentium IV 660 (130 W vs 115 W). Processor family: Intel® Pentium® D on the Fujitsu Pentium D 840, Intel® Pentium® 4 on the Fujitsu Pentium IV 660. VID Voltage Range: 1.25 - 1.4 V on the Fujitsu Pentium D 840, 1.287 - 1.400 V on the Fujitsu Pentium IV 660.

Processor family
- Pentium D 840:Intel® Pentium® D
- Pentium IV 660:Intel® Pentium® 4
Processor base frequency
- Pentium D 840:3.2 GHz
- Pentium IV 660:3.6 GHz
L2 cache speed
- Pentium D 840:3.2 GHz
- Pentium IV 660:3.6 GHz
Thermal Design Power (TDP)
- Pentium D 840:130 W
- Pentium IV 660:115 W
VID Voltage Range
- Pentium D 840:1.25 - 1.4 V
- Pentium IV 660:1.287 - 1.400 V
Stepping
- Pentium D 840:B0
- Pentium IV 660:R0
CPU multiplier (bus/core ratio)
- Pentium D 840:16
- Pentium IV 660:18
Processor code
- Pentium D 840:SL8CM
- Pentium IV 660:SL8PZ

Side by side

Differences highlightedShow differences only

Comparison of Pentium D 840, Pentium IV 660
15 specifications	A Fujitsu Pentium D 840 View product	B Fujitsu Pentium IV 660 View product
Processor8 differ
Processor familyDiffers	Intel® Pentium® D	Intel® Pentium® 4
Processor base frequencyDiffers	3.2 GHz	3.6 GHz
Processor coresKnown for one	2	Unknown — not stated by the source
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Processor lithography	90 nm	90 nm
Package type	Box	Box
Processor cache	2 MB	2 MB
Processor cache type	L2	L2
L2 cache speedDiffers	3.2 GHz	3.6 GHz
Processor front side bus	800 MHz	800 MHz
Thermal Design Power (TDP)Differs	130 W	115 W
VID Voltage RangeDiffers	1.25 - 1.4 V	1.287 - 1.400 V
SteppingDiffers	B0	R0
CPU multiplier (bus/core ratio)Differs	16	18
Processor codeDiffers	SL8CM	SL8PZ

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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