Product comparison · 2 cpus

HP Z620 Xeon E5-2665 8C 2.40GHz 20MB vs HP Z820 Xeon E5-2665 8 Core 2.40GHz 20MB cache 1600MHz 2nd CPU

49specifications compared
2differ
47identical
0known for one product only

Key differences

Processor cache type
- Z620 Xeon E5-2665 8C 2.40GHz 20MB:L3
- Z820 Xeon E5-2665 8 Core 2.40GHz 20MB cache 1600MHz 2nd CPU:L2
Compatibility
- Z620 Xeon E5-2665 8C 2.40GHz 20MB:HP Z620
- Z820 Xeon E5-2665 8 Core 2.40GHz 20MB cache 1600MHz 2nd CPU:HP Z820

Side by side

Differences highlightedShow differences only

Comparison of Z620 Xeon E5-2665 8C 2.40GHz 20MB, Z820 Xeon E5-2665 8 Core 2.40GHz 20MB cache 1600MHz 2nd CPU
49 specifications	A HP Z620 Xeon E5-2665 8C 2.40GHz 20MB View product	B HP Z820 Xeon E5-2665 8 Core 2.40GHz 20MB cache 1600MHz 2nd CPU View product
Processor1 differ
Processor family	Intel® Xeon® E5 Family	Intel® Xeon® E5 Family
Processor model	E5-2665	E5-2665
Processor base frequency	2.4 GHz	2.4 GHz
Processor cores	8	8
Processor socket	LGA 2011 (Socket R)	LGA 2011 (Socket R)
Processor lithography	32 nm	32 nm
Component for	Server/workstation	Server/workstation
Processor threads	16	16
System bus rate	8 GT/s	8 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequency	3.1 GHz	3.1 GHz
Processor cache	20 MB	20 MB
Processor cache typeDiffers	L3	L2
Processor front side bus	1600 MHz	1600 MHz
Thermal Design Power (TDP)	115 W	115 W
VID Voltage Range	0.6 - 1.35 V	0.6 - 1.35 V
Bus type	QPI	QPI
CPU multiplier (bus/core ratio)	31	31
Number of QPI links	2	2
Memory bandwidth supported by processor (max)	51.2 GB/s	51.2 GB/s
Memoryidentical
Maximum internal memory supported by processor	750 GB	750 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processor	800,1066,1333,1600 MHz	800,1066,1333,1600 MHz
Memory channels	Quad-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 Technologies	Yes	Yes
Market segment	Server	Server
Maximum number of PCI Express lanes	40	40
PCI Express slots version	3.0	3.0
CPU configuration (max)	2	2
Embedded options available	No	No
Scalability	S2S	S2S
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Trusted Execution Technology	Yes	Yes
Intel® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Turbo Boost Technology	Yes	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 Eligibility	Yes	Yes
Operational conditionsidentical
Tcase	81.8 °C	81.8 °C
Other features1 differ
Intel® Virtualization Technology (Intel® VT)	VT-d, VT-x	VT-d, VT-x
CompatibilityDiffers	HP Z620	HP Z820

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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