Product comparison · 2 pcs/workstations

HP Z440 MT + NVIDIA Quadro K620 vs HP Z640 MT

115specifications compared
29differ
86identical
13known for one product only

Key differences

Processor model
- Z440 MT + NVIDIA Quadro K620:E5-1620V4
- Z640 MT:E5-2630V4
Processor cores
- Z440 MT + NVIDIA Quadro K620:4
- Z640 MT:10
Processor threads
- Z440 MT + NVIDIA Quadro K620:8
- Z640 MT:20
Processor boost frequency
- Z440 MT + NVIDIA Quadro K620:3.8 GHz
- Z640 MT:3.1 GHz
Processor frequency
- Z440 MT + NVIDIA Quadro K620:3.5 GHz
- Z640 MT:2.2 GHz
Processor cache
- Z440 MT + NVIDIA Quadro K620:10 MB
- Z640 MT:25 MB
System bus rate
- Z440 MT + NVIDIA Quadro K620:0 GT/s
- Z640 MT:8 GT/s
Processor series
- Z440 MT + NVIDIA Quadro K620:Intel Xeon E5-1600 v4
- Z640 MT:Intel Xeon E5-2600 v4

Side by side

Differences highlightedShow differences only

Comparison of Z440 MT + NVIDIA Quadro K620, Z640 MT
128 specifications	A HP Z440 MT + NVIDIA Quadro K620 View product	B HP Z640 MT View product
Processor13 differ
Processor modelDiffers	E5-1620V4	E5-2630V4
Processor coresDiffers	4	10
Processor threadsDiffers	8	20
Processor boost frequencyDiffers	3.8 GHz	3.1 GHz
Processor frequencyDiffers	3.5 GHz	2.2 GHz
Processor cacheDiffers	10 MB	25 MB
System bus rateDiffers	0 GT/s	8 GT/s
Processor seriesDiffers	Intel Xeon E5-1600 v4	Intel Xeon E5-2600 v4
Thermal Design Power (TDP)Differs	140 W	85 W
TcaseDiffers	69 °C	74 °C
Number of QPI linksDiffers	0	2
Memory clock speeds supported by processorDiffers	1600,1866,2133,2400 MHz	1600,1866,2133 MHz
Memory bandwidth supported by processor (max)Differs	76.8 GB/s	68.3 GB/s
Memory3 differ
Maximum internal memoryDiffers	128 GB	32 GB
Memory slotsDiffers	8x DIMM	4x DIMM
Memory clock speedDiffers	2400 MHz	2133 MHz
ECCKnown for one	Unknown — not stated by the source	Yes
Storage2 differ
Total storage capacityDiffers	1 TB	256 GB
Storage mediaDiffers	HDD	SSD
Total SSDs capacityKnown for one	Unknown — not stated by the source	256 GB
Number of SSDs installedKnown for one	Unknown — not stated by the source	1
SSD capacityKnown for one	Unknown — not stated by the source	256 GB
SSD interfaceKnown for one	Unknown — not stated by the source	PCI Express
Total HDDs capacityKnown for one	1 TB	Unknown — not stated by the source
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacityKnown for one	1 TB	Unknown — not stated by the source
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
HDD speedKnown for one	7200 RPM	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	700 W	925 W
Processor special features6 differ
CPU configuration (max)Differs	1	2
Intel Identity Protection Technology versionDiffers	1.00	0.00
Processor ARK IDDiffers	92991	92981
Processor codeDiffers	SR2P7	SR2R7
ScalabilityDiffers	1S	2S
Intel® Identity Protection Technology (Intel® IPT)Differs	Yes	No
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	HD
Audio chipKnown for one	Realtek ALC221	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	169 mm	175 mm
DepthDiffers	445 mm	464.8 mm
HeightDiffers	432 mm	444.5 mm
WeightDiffers	11 kg	15 kg
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	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.

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