Product comparison · 2 cpus

HP Z640 Xeon E5-2620v3 2.4GHz 1866MHz 6 Core 2nd CPU vs HP Z840 Xeon E5-2680v3 2.5GHz 2133MHz 12 Core 2nd CPU

Key differences

Processor model
- Z640 Xeon E5-2620v3 2.4GHz 1866MHz 6 Core 2nd CPU:E5-2620V3
- Z840 Xeon E5-2680v3 2.5GHz 2133MHz 12 Core 2nd CPU:E5-2680V3
Processor base frequency
- Z640 Xeon E5-2620v3 2.4GHz 1866MHz 6 Core 2nd CPU:2.4 GHz
- Z840 Xeon E5-2680v3 2.5GHz 2133MHz 12 Core 2nd CPU:2.5 GHz
Processor cores
- Z640 Xeon E5-2620v3 2.4GHz 1866MHz 6 Core 2nd CPU:6
- Z840 Xeon E5-2680v3 2.5GHz 2133MHz 12 Core 2nd CPU:12
Processor threads
- Z640 Xeon E5-2620v3 2.4GHz 1866MHz 6 Core 2nd CPU:12
- Z840 Xeon E5-2680v3 2.5GHz 2133MHz 12 Core 2nd CPU:24
System bus rate
- Z640 Xeon E5-2620v3 2.4GHz 1866MHz 6 Core 2nd CPU:8 GT/s
- Z840 Xeon E5-2680v3 2.5GHz 2133MHz 12 Core 2nd CPU:9.6 GT/s
Processor boost frequency
- Z640 Xeon E5-2620v3 2.4GHz 1866MHz 6 Core 2nd CPU:3.2 GHz
- Z840 Xeon E5-2680v3 2.5GHz 2133MHz 12 Core 2nd CPU:3.3 GHz
Processor cache
- Z640 Xeon E5-2620v3 2.4GHz 1866MHz 6 Core 2nd CPU:15 MB
- Z840 Xeon E5-2680v3 2.5GHz 2133MHz 12 Core 2nd CPU:30 MB
Thermal Design Power (TDP)
- Z640 Xeon E5-2620v3 2.4GHz 1866MHz 6 Core 2nd CPU:85 W
- Z840 Xeon E5-2680v3 2.5GHz 2133MHz 12 Core 2nd CPU:120 W

Differences highlightedShow differences only

Comparison of Z640 Xeon E5-2620v3 2.4GHz 1866MHz 6 Core 2nd CPU, Z840 Xeon E5-2680v3 2.5GHz 2133MHz 12 Core 2nd CPU
22 specifications	A HP Z640 Xeon E5-2620v3 2.4GHz 1866MHz 6 Core 2nd CPU View product	B HP Z840 Xeon E5-2680v3 2.5GHz 2133MHz 12 Core 2nd CPU View product
Processor8 differ
Processor family	Intel Xeon E5 v3	Intel Xeon E5 v3
Processor modelDiffers	E5-2620V3	E5-2680V3
Processor base frequencyDiffers	2.4 GHz	2.5 GHz
Processor coresDiffers	6	12
Processor socket	LGA 2011-v3	LGA 2011-v3
Processor lithography	22 nm	22 nm
Component for	Server/workstation	Server/workstation
Processor threadsDiffers	12	24
System bus rateDiffers	8 GT/s	9.6 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyDiffers	3.2 GHz	3.3 GHz
Processor cacheDiffers	15 MB	30 MB
Processor cache type	L3	L3
Thermal Design Power (TDP)Differs	85 W	120 W
Memory1 differ
Memory channelsDiffers	Hexa-channel	Dodeca-channel
Featuresidentical
Market segment	Server	Server
Scalability	2S	2S
Processor special featuresidentical
Intel Flex Memory AccessKnown for one	No	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)	No	No
Intel® Turbo Boost Technology	2.0	2.0
Intel® vPro™ Platform Eligibility	Yes	Yes

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.