Product comparison · 2 cpus

Acer Intel Xeon E5540 vs HP Z620 Xeon E5-2620 6C 2.00GHz 15MB

38specifications compared
21differ
17identical
13known for one product only

Key differences

The Acer Intel Xeon E5540 has 0.53 GHz more processor base frequency than the HP Z620 Xeon E5-2620 6C 2.00GHz 15MB (2.53 GHz vs 2 GHz). The HP Z620 Xeon E5-2620 6C 2.00GHz 15MB has 2 more processor cores than the Acer Intel Xeon E5540 (6 vs 4). The Acer Intel Xeon E5540 has 13 nm more processor lithography than the HP Z620 Xeon E5-2620 6C 2.00GHz 15MB (45 nm vs 32 nm). Only the Acer Intel Xeon E5540 has on-board graphics card. Only the Acer Intel Xeon E5540 has embedded options available.

Processor family
- Intel Xeon E5540:Intel® Xeon® 5000 Sequence
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:Intel® Xeon® E5 Family
Processor model
- Intel Xeon E5540:E5540
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:E5-2620
Processor base frequency
- Intel Xeon E5540:2.53 GHz
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:2 GHz
Processor cores
- Intel Xeon E5540:4
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:6
Processor socket
- Intel Xeon E5540:Socket B (LGA 1366)
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:LGA 2011 (Socket R)
Processor lithography
- Intel Xeon E5540:45 nm
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:32 nm
Processor threads
- Intel Xeon E5540:8
- Z620 Xeon E5-2620 6C 2.00GHz 15MB:12
System bus rate
- Intel Xeon E5540:5.86 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 E5540, Z620 Xeon E5-2620 6C 2.00GHz 15MB
51 specifications	A Acer Intel Xeon E5540 View product	B HP Z620 Xeon E5-2620 6C 2.00GHz 15MB View product
Processor14 differ
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Xeon® E5 Family
Processor modelDiffers	E5540	E5-2620
Processor base frequencyDiffers	2.53 GHz	2 GHz
Processor coresDiffers	4	6
Processor socketDiffers	Socket B (LGA 1366)	LGA 2011 (Socket R)
Processor lithographyDiffers	45 nm	32 nm
Processor threadsDiffers	8	12
System bus rateDiffers	5.86 GT/s	7.2 GT/s
Processor operating modesKnown for one	Unknown — not stated by the source	64-bit
Processor boost frequencyDiffers	2.8 GHz	2.5 GHz
Processor cacheDiffers	8 MB	15 MB
Processor front side busKnown for one	Unknown — not stated by the source	1333 MHz
Thermal Design Power (TDP)Differs	80 W	95 W
VID Voltage RangeDiffers	0.75 - 1.35 V	0.6 - 1.35 V
CPU multiplier (bus/core ratio)Differs	19	25
Memory bandwidth supported by processor (max)Differs	25.6 GB/s	42.6 GB/s
SteppingKnown for one	D0	Unknown — not stated by the source
Memory3 differ
Maximum internal memory supported by processorDiffers	144 GB	750 GB
Memory clock speeds supported by processorDiffers	800,1066 MHz	800,1066,1333 MHz
Memory channelsDiffers	Triple-channel	Quad-channel
Graphics1 differ
On-board graphics cardDiffers	Yes	No
Features1 differ
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	Yes
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 availableDiffers	Yes	No
ScalabilityKnown for one	Unknown — not stated by the source	S2S
Processing Die sizeKnown for one	263 mm²	Unknown — not stated by the source
Processor special features1 differ
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	Yes
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	Yes
Intel® vPro™ Platform EligibilityKnown for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
TcaseDiffers	76 °C	77.4 °C
Other featuresidentical
CompatibilityKnown for one	Unknown — not stated by the source	HP Z620
Weight & dimensionsidentical
Package dimensions (WxDxH)Known for one	42.5 x 42.5 x 45 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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