Product comparison · 2 cpus

HP E5645 processor vs Lenovo Intel Xeon X5660

17specifications compared
6differ
11identical
9known for one product only

Key differences

Processor model
- E5645 processor:E5645
- Intel Xeon X5660:X5660
Processor base frequency
- E5645 processor:2.4 GHz
- Intel Xeon X5660:2.8 GHz
System bus rate
- E5645 processor:5.86 GT/s
- Intel Xeon X5660:6.4 GT/s
Thermal Design Power (TDP)
- E5645 processor:80 W
- Intel Xeon X5660:95 W
VID Voltage Range
- E5645 processor:0.750 - 1.350 V
- Intel Xeon X5660:0.800 - 1.300 V
CPU multiplier (bus/core ratio)
- E5645 processor:18
- Intel Xeon X5660:21

Side by side

Differences highlightedShow differences only

Comparison of E5645, Intel Xeon X5660
26 specifications	A HP E5645 processor Model E5645 View product	B Lenovo Intel Xeon X5660 View product
Processor6 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5645	X5660
Processor base frequencyDiffers	2.4 GHz	2.8 GHz
Processor cores	6	6
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	32 nm	32 nm
Package type	Tray	Tray
Component for	Server/workstation	Server/workstation
Processor threads	12	12
System bus rateDiffers	5.86 GT/s	6.4 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyKnown for one	2.67 GHz	Unknown — not stated by the source
Processor cache	12 MB	12 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)Differs	80 W	95 W
VID Voltage RangeDiffers	0.750 - 1.350 V	0.800 - 1.300 V
CPU multiplier (bus/core ratio)Differs	18	21
Memory bandwidth supported by processor (max)Known for one	32 GB/s	Unknown — not stated by the source
L3 cache speedKnown for one	Unknown — not stated by the source	2.80 GHz
Processor front side busKnown for one	Unknown — not stated by the source	1333 MHz
Memoryidentical
Maximum internal memory supported by processorKnown for one	288 GB	Unknown — not stated by the source
Memory clock speeds supported by processorKnown for one	800,1066,1333 MHz	Unknown — not stated by the source
Memory channelsKnown for one	Triple-channel	Unknown — not stated by the source
Featuresidentical
Market segment	Server	Server
Weight & dimensionsidentical
WidthKnown for one	45 mm	Unknown — not stated by the source
HeightKnown for one	42.5 mm	Unknown — not stated by the source

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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