Product comparison · 2 cpus

HP Intel Xeon E5-2640 2.5GHz vs HP Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU

38specifications compared
10differ
28identical
12known for one product only

Key differences

The HP Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU has 0.8 GHz more processor base frequency than the HP Intel Xeon E5-2640 2.5GHz (3.3 GHz vs 2.5 GHz). The HP Intel Xeon E5-2640 2.5GHz has 2 more processor cores than the HP Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU (6 vs 4). The HP Intel Xeon E5-2640 2.5GHz has 4 more processor threads than the HP Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU (12 vs 8). Processor model: E5-2640 on the HP Intel Xeon E5-2640 2.5GHz, E5-2643 on the HP Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU. VID Voltage Range: 0.60 - 1.35 V on the HP Intel Xeon E5-2640 2.5GHz, 0.6 - 1.35 V on the HP Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU.

Processor model
- Intel Xeon E5-2640 2.5GHz:E5-2640
- Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:E5-2643
Processor base frequency
- Intel Xeon E5-2640 2.5GHz:2.5 GHz
- Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:3.3 GHz
Processor cores
- Intel Xeon E5-2640 2.5GHz:6
- Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:4
Processor threads
- Intel Xeon E5-2640 2.5GHz:12
- Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:8
System bus rate
- Intel Xeon E5-2640 2.5GHz:7.2 GT/s
- Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:8 GT/s
Processor boost frequency
- Intel Xeon E5-2640 2.5GHz:3 GHz
- Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:3.5 GHz
Thermal Design Power (TDP)
- Intel Xeon E5-2640 2.5GHz:95 W
- Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:130 W
VID Voltage Range
- Intel Xeon E5-2640 2.5GHz:0.60 - 1.35 V
- Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU:0.6 - 1.35 V

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon E5-2640 2.5GHz, Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU
50 specifications	A HP Intel Xeon E5-2640 2.5GHz View product	B HP Z620 Xeon E5-2643 4 Core 3.30GHz 10MB cache 1600MHz 2nd CPU View product
Processor9 differ
Processor family	Intel® Xeon® E5 Family	Intel® Xeon® E5 Family
Processor modelDiffers	E5-2640	E5-2643
Processor base frequencyDiffers	2.5 GHz	3.3 GHz
Processor coresDiffers	6	4
Processor socket	LGA 2011 (Socket R)	LGA 2011 (Socket R)
Processor lithography	32 nm	32 nm
Component forKnown for one	Unknown — not stated by the source	Server/workstation
Processor threadsDiffers	12	8
System bus rateDiffers	7.2 GT/s	8 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyDiffers	3 GHz	3.5 GHz
Processor cacheKnown for one	Unknown — not stated by the source	10 MB
Processor cache typeKnown for one	Unknown — not stated by the source	L2
Processor front side busKnown for one	Unknown — not stated by the source	1600 MHz
Thermal Design Power (TDP)Differs	95 W	130 W
VID Voltage RangeDiffers	0.60 - 1.35 V	0.6 - 1.35 V
Bus type	QPI	QPI
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	35
Number of QPI links	2	2
Memory bandwidth supported by processor (max)Differs	42.6 GB/s	51.2 GB/s
Memory1 differ
Maximum internal memory supported by processor	750 GB	750 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	800,1066,1333 MHz	800,1066,1333,1600 MHz
Memory channels	Quad-channel	Quad-channel
ECC	Yes	Yes
Graphicsidentical
On-board graphics cardKnown for one	Unknown — not stated by the source	No
Featuresidentical
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Thermal Monitoring Technologies	Yes	Yes
Market segmentKnown for one	Unknown — not stated by the source	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
CPU configuration (max)	2	2
Embedded options availableKnown for one	Unknown — not stated by the source	No
Scalability	S2S	S2S
Supported instruction setsKnown for one	AVX	Unknown — not stated by the source
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	73 °C	73 °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

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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