Product comparison · 2 cpus

Dell 2x Intel Xeon L7555 vs Dell Intel Xeon E7520

Key differences

Processor model
- 2x Intel Xeon L7555:L7555
- Intel Xeon E7520:E7520
Processor cores
- 2x Intel Xeon L7555:8
- Intel Xeon E7520:4
Processor threads
- 2x Intel Xeon L7555:16
- Intel Xeon E7520:8
System bus rate
- 2x Intel Xeon L7555:5.86 GT/s
- Intel Xeon E7520:4.8 GT/s
Processor boost frequency
- 2x Intel Xeon L7555:2.533 GHz
- Intel Xeon E7520:1.866 GHz
Processor cache
- 2x Intel Xeon L7555:24 MB
- Intel Xeon E7520:18 MB

Differences highlightedShow differences only

Comparison of 2x Intel Xeon L7555, Intel Xeon E7520
27 specifications	A Dell 2x Intel Xeon L7555 View product	B Dell Intel Xeon E7520 View product
Processor6 differ
Processor family	Intel® Xeon® 7000 Sequence	Intel® Xeon® 7000 Sequence
Processor modelDiffers	L7555	E7520
Processor base frequency	1.866 GHz	1.866 GHz
Processor coresDiffers	8	4
Processor socket	LGA 1567 (Socket LS)	LGA 1567 (Socket LS)
Processor lithography	45 nm	45 nm
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	16	8
System bus rateDiffers	5.86 GT/s	4.8 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyDiffers	2.533 GHz	1.866 GHz
Processor cacheDiffers	24 MB	18 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)	95 W	95 W
VID Voltage Range	0.675 - 1.35 V	0.675 - 1.35 V
Stepping	D0	D0
Bus typeKnown for one	QPI	Unknown — not stated by the source
Graphicsidentical
On-board graphics card	No	No
Featuresidentical
Execute Disable Bit	Yes	Yes
Market segment	Server	Server
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Turbo Boost TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel VT-x with Extended Page Tables (EPT)Known for one	Yes	Unknown — not stated by the source
Intel Virtualization Technology (VT-x)	Yes	Yes
Operational conditionsidentical
Tcase	70 °C	70 °C
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)	VT-x	VT-x

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.