Product comparison · 2 cpus

Fujitsu Intel Xeon E5645 vs Fujitsu Intel Xeon X5647

Key differences

Processor model
- Intel Xeon E5645:E5645
- Intel Xeon X5647:X5647
Processor base frequency
- Intel Xeon E5645:2.4 GHz
- Intel Xeon X5647:2.93 GHz
Processor cores
- Intel Xeon E5645:6
- Intel Xeon X5647:4
Processor threads
- Intel Xeon E5645:12
- Intel Xeon X5647:8
Processor front side bus
- Intel Xeon E5645:1333 MHz
- Intel Xeon X5647:1066 MHz
Thermal Design Power (TDP)
- Intel Xeon E5645:80 W
- Intel Xeon X5647:130 W
VID Voltage Range
- Intel Xeon E5645:0.750 - 1.350 V
- Intel Xeon X5647:0.75 - 1.35 V
CPU multiplier (bus/core ratio)
- Intel Xeon E5645:18
- Intel Xeon X5647:22

Differences highlightedShow differences only

Comparison of Intel Xeon E5645, Intel Xeon X5647
22 specifications	A Fujitsu Intel Xeon E5645 View product	B Fujitsu Intel Xeon X5647 View product
Processor9 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5645	X5647
Processor base frequencyDiffers	2.4 GHz	2.93 GHz
Processor coresDiffers	6	4
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	32 nm	32 nm
Package typeKnown for one	Tray	Unknown — not stated by the source
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	12	8
System bus rate	5.86 GT/s	5.86 GT/s
Processor operating modes	64-bit	64-bit
Processor cache	12 MB	12 MB
Processor cache type	L3	L3
Processor front side busDiffers	1333 MHz	1066 MHz
Thermal Design Power (TDP)Differs	80 W	130 W
VID Voltage RangeDiffers	0.750 - 1.350 V	0.75 - 1.35 V
Stepping	B1	B1
CPU multiplier (bus/core ratio)Differs	18	22
Processor codeDiffers	SLBWZ	SLBZ7
Featuresidentical
Market segment	Server	Server
Bandwidth	26214.4 MB/s	26214.4 MB/s
Operational conditions1 differ
Maximum operating temperatureDiffers	76.2 °C	80.4 °C

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.