Product comparison · 2 cpus

HP E5640 processor vs HP L5640 processor

Key differences

Processor model
- E5640 processor:E5640
- L5640 processor:L5640
Processor base frequency
- E5640 processor:2.66 GHz
- L5640 processor:2.26 GHz
Processor cores
- E5640 processor:4
- L5640 processor:6
Processor threads
- E5640 processor:8
- L5640 processor:12
Processor boost frequency
- E5640 processor:2.93 GHz
- L5640 processor:2.8 GHz
Thermal Design Power (TDP)
- E5640 processor:80 W
- L5640 processor:60 W
CPU multiplier (bus/core ratio)
- E5640 processor:20
- L5640 processor:17
Memory bandwidth supported by processor (max)
- E5640 processor:25.6 GB/s
- L5640 processor:32 GB/s

Differences highlightedShow differences only

Comparison of E5640, L5640
27 specifications	A HP E5640 processor Model E5640 View product	B HP L5640 processor Model L5640 View product
Processor9 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5640	L5640
Processor base frequencyDiffers	2.66 GHz	2.26 GHz
Processor coresDiffers	4	6
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	32 nm	32 nm
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	8	12
System bus rate	5.86 GT/s	5.86 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyDiffers	2.93 GHz	2.8 GHz
Processor cache	12 MB	12 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)Differs	80 W	60 W
VID Voltage Range	0.750 - 1.350 V	0.750 - 1.350 V
Stepping	B1	B1
CPU multiplier (bus/core ratio)Differs	20	17
Memory bandwidth supported by processor (max)Differs	25.6 GB/s	32 GB/s
Processor codeDiffers	SLBVC	SLBV8
Package typeKnown for one	Unknown — not stated by the source	Tray
Memory1 differ
Maximum internal memory supported by processor	288 GB	288 GB
Memory clock speeds supported by processorDiffers	800,1066 MHz	800,1066,1333 MHz
Memory channels	Triple-channel	Triple-channel
ECC	Yes	Yes
Featuresidentical
Market segment	Server	Server
BandwidthKnown for one	26214.4 MB/s	Unknown — not stated by the source
Operational conditions1 differ
Maximum operating temperatureDiffers	77.6 °C	69.4 °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.