Product comparison · 2 cpus

Acer Intel Xeon L5520 vs HP Z620 Xeon E5-2620 6C 2.00GHz 15MB

34specifications compared
17differ
17identical
22known for one product only

Key differences

The Acer Intel Xeon L5520 has 0.26 GHz more processor base frequency than the HP Z620 Xeon E5-2620 6C 2.00GHz 15MB (2.26 GHz vs 2 GHz). The HP Z620 Xeon E5-2620 6C 2.00GHz 15MB has 2 more processor cores than the Acer Intel Xeon L5520 (6 vs 4). The Acer Intel Xeon L5520 has 13 nm more processor lithography than the HP Z620 Xeon E5-2620 6C 2.00GHz 15MB (45 nm vs 32 nm). Processor family: Intel® Xeon® 5000 Sequence on the Acer Intel Xeon L5520, Intel® Xeon® E5 Family on the HP Z620 Xeon E5-2620 6C 2.00GHz 15MB. Processor model: L5520 on the Acer Intel Xeon L5520, E5-2620 on the HP Z620 Xeon E5-2620 6C 2.00GHz 15MB.

Processor family
- Intel Xeon L5520:Intel® Xeon® 5000 Sequence
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:Intel® Xeon® E5 Family
Processor model
- Intel Xeon L5520:L5520
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:E5-2620
Processor base frequency
- Intel Xeon L5520:2.26 GHz
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:2 GHz
Processor cores
- Intel Xeon L5520:4
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:6
Processor socket
- Intel Xeon L5520:Socket B (LGA 1366)
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:LGA 2011 (Socket R)
Processor lithography
- Intel Xeon L5520:45 nm
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:32 nm
Processor threads
- Intel Xeon L5520:8
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:12
System bus rate
- Intel Xeon L5520:5.86 GT/s
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:7.2 GT/s

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon L5520, Z620 Xeon E5-2620 6C 2.00GHz 15MB
56 specifications	A Acer Intel Xeon L5520 View product	B HP Z620 Xeon E5-2620 6C 2.00GHz 15MB View product
Processor13 differ
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Xeon® E5 Family
Processor modelDiffers	L5520	E5-2620
Processor base frequencyDiffers	2.26 GHz	2 GHz
Processor coresDiffers	4	6
Processor socketDiffers	Socket B (LGA 1366)	LGA 2011 (Socket R)
Processor lithographyDiffers	45 nm	32 nm
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	8	12
System bus rateDiffers	5.86 GT/s	7.2 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.5 GHz
Processor cacheDiffers	8 MB	15 MB
Processor cache type	L3	L3
Processor front side busKnown for one	Unknown — not stated by the source	1333 MHz
Thermal Design Power (TDP)Differs	60 W	95 W
VID Voltage RangeDiffers	0.75 - 1.35 V	0.6 - 1.35 V
Bus type	QPI	QPI
CPU multiplier (bus/core ratio)Differs	17	25
Number of QPI links	2	2
Memory bandwidth supported by processor (max)Differs	25.6 GB/s	42.6 GB/s
Package typeKnown for one	Tray	Unknown — not stated by the source
L3 cache speedKnown for one	2.26 GHz	Unknown — not stated by the source
SteppingKnown for one	D0	Unknown — not stated by the source
Memory3 differ
Maximum internal memory supported by processorDiffers	144 GB	750 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	800,1066 MHz	800,1066,1333 MHz
Memory channelsDiffers	Triple-channel	Quad-channel
ECC	Yes	Yes
Graphicsidentical
On-board graphics card	No	No
Featuresidentical
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	Yes
Market segment	Server	Server
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	40
PCI Express slots versionKnown for one	Unknown — not stated by the source	3.0
Embedded options availableKnown for one	Unknown — not stated by the source	No
ScalabilityKnown for one	Unknown — not stated by the source	S2S
Number of Processing Die TransistorsKnown for one	731 M	Unknown — not stated by the source
Processing Die sizeKnown for one	263 mm²	Unknown — not stated by the source
Physical Address Extension (PAE)Known for one	Yes	Unknown — not stated by the source
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	Yes
Intel Trusted Execution TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)Known for one	Unknown — not stated by the source	Yes
Intel® Turbo Boost TechnologyKnown for one	Unknown — not stated by the source	Yes
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
Intel® vPro™ Platform EligibilityKnown for one	Unknown — not stated by the source	Yes
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Operational conditions1 differ
TcaseDiffers	70 °C	77.4 °C
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)	VT-d, VT-x	VT-d, VT-x
CompatibilityKnown for one	Unknown — not stated by the source	HP Z620
Weight & dimensionsidentical
Processor package sizeKnown 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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