Product comparison · 2 cpus

Dell Xeon E5506 vs Dell Xeon L5520

42specifications compared
13differ
29identical
4known for one product only

Key differences

Processor model
- Xeon E5506:E5506
- Xeon L5520:L5520
Processor base frequency
- Xeon E5506:2.13 GHz
- Xeon L5520:2.26 GHz
Processor threads
- Xeon E5506:4
- Xeon L5520:8
System bus rate
- Xeon E5506:4.8 GT/s
- Xeon L5520:5.86 GT/s
Processor cache
- Xeon E5506:4 MB
- Xeon L5520:8 MB
L3 cache speed
- Xeon E5506:2.13 GHz
- Xeon L5520:2.26 GHz
Thermal Design Power (TDP)
- Xeon E5506:80 W
- Xeon L5520:60 W
VID Voltage Range
- Xeon E5506:0.75 - 1.35 V
- Xeon L5520:0.750 - 1.350 V

Side by side

Differences highlightedShow differences only

Comparison of Xeon E5506, Xeon L5520
46 specifications	A Dell Xeon E5506 View product	B Dell Xeon L5520 View product
Processor10 differ
Processor family	Intel® Xeon® 5000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5506	L5520
Processor base frequencyDiffers	2.13 GHz	2.26 GHz
Processor cores	4	4
Processor socket	Socket B (LGA 1366)	Socket B (LGA 1366)
Processor lithography	45 nm	45 nm
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	4	8
System bus rateDiffers	4.8 GT/s	5.86 GT/s
Processor operating modes	64-bit	64-bit
Processor cacheDiffers	4 MB	8 MB
Processor cache type	L3	L3
L3 cache speedDiffers	2.13 GHz	2.26 GHz
Thermal Design Power (TDP)Differs	80 W	60 W
VID Voltage RangeDiffers	0.75 - 1.35 V	0.750 - 1.350 V
Stepping	D0	D0
Bus type	QPI	QPI
CPU multiplier (bus/core ratio)Differs	16	17
Number of QPI links	2	2
Memory bandwidth supported by processor (max)Differs	19.2 GB/s	25.6 GB/s
Memory1 differ
Maximum internal memory supported by processor	144 GB	144 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	800 MHz	800,1066 MHz
Memory channels	Triple-channel	Triple-channel
ECC	Yes	Yes
Graphicsidentical
On-board graphics card	No	No
Featuresidentical
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Market segment	Server	Server
CPU configuration (max)Known for one	2	Unknown — not stated by the source
Embedded options available	No	No
Physical Address Extension (PAE)	Yes	Yes
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	731 M
Processing Die sizeKnown for one	Unknown — not stated by the source	263 mm²
Processor special features1 differ
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Trusted Execution Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost TechnologyKnown for one	No	Unknown — not stated by the source
Intel Demand Based Switching	Yes	Yes
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	Yes	Yes
Operational conditions1 differ
TcaseDiffers	76 °C	70 °C
Weight & dimensionsidentical
Processor package size	42.5 mm	42.5 mm
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)	VT-d, VT-x	VT-d, 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.

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