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 manufacturer	Intel	Intel
Processor family	Intel® Xeon® E5 v4	Intel® Xeon® E5 v4
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
Processor cache type	Smart Cache	Smart Cache
Bus type	QPI	QPI
System bus rateDiffers	0 GT/s	8 GT/s
Processor lithography	14 nm	14 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Xeon E5-1600 v4	Intel Xeon E5-2600 v4
Processor codename	Broadwell	Broadwell
Thermal Design Power (TDP)Differs	140 W	85 W
TcaseDiffers	69 °C	74 °C
Maximum number of PCI Express lanes	40	40
PCI Express slots version	3.0	3.0
Number of QPI linksDiffers	0	2
Number of processors installed	1	1
Processor socket	LGA 2011-v3	LGA 2011-v3
Stepping	R0	R0
Maximum internal memory supported by processor	1.53 TB	1.53 TB
Memory types supported by processor	DDR4-SDRAM	DDR4-SDRAM
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
ECC supported by processor	Yes	Yes
Memory3 differ
Internal memory	16 GB	16 GB
Maximum internal memoryDiffers	128 GB	32 GB
Internal memory type	DDR4-SDRAM	DDR4-SDRAM
Memory layout (slots x size)	2 x 8 GB	2 x 8 GB
Memory slotsDiffers	8x DIMM	4x DIMM
Memory clock speedDiffers	2400 MHz	2133 MHz
ECCKnown for one	Unknown — not stated by the source	Yes
Memory channels	Quad-channel	Quad-channel
Storage2 differ
Total storage capacityDiffers	1 TB	256 GB
Optical drive type	DVD Super Multi	DVD Super Multi
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
Card reader integrated	No	No
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
Graphicsidentical
Discrete graphics card	No	No
On-board graphics card	No	No
Discrete graphics card model	Not available	Not available
On-board graphics card model	Not available	Not available
Performanceidentical
Product type	Workstation	Workstation
Motherboard chipset	Intel® C612	Intel® C612
Optical driveidentical
Optical drives quantity	1	1
BD interface type	SATA	SATA
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Wi-Fi	No	No
Ports & interfacesidentical
USB 2.0 ports quantity	2	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	8	8
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity	0	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity	0	0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantity	0	0
Thunderbolt 3 ports quantity	0	0
HDMI ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	0	0
DVI port	No	No
PS/2 ports quantity	2	2
Expansion slotsidentical
Number of 3.5" bays	2	2
PCI Express x1 (Gen 2.x) slots	1	1
PCI Express x4 (Gen 2.x) slots	1	1
PCI Express x8 (Gen 3.x) slots	1	1
PCI Express x16 (Gen 3.x) slots	2	2
PCI slots	1	1
Power1 differ
Power supplyDiffers	700 W	925 W
Designidentical
Chassis type	Mini Tower	Mini Tower
Number of 5.25" bays	2	2
Product colour	Black	Black
Country of origin	China	China
Softwareidentical
Operating system installed	Windows 7 Professional	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Recovery operating system	Windows 10 Pro	Windows 10 Pro
Displayidentical
Display included	No	No
Processor special features6 differ
CPU configuration (max)Differs	1	2
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Demand Based Switching	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel Flex Memory Access	No	No
Intel Identity Protection Technology versionDiffers	1.00	0.00
Intel Secure Key Technology version	1.00	1.00
Intel TSX-NI	Yes	Yes
Intel TSX-NI version	1.00	1.00
Intel Trusted Execution Technology	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® AES New Instructions (Intel® AES-NI)	Yes	Yes
Intel® OS Guard	Yes	Yes
Intel® Secure Key	Yes	Yes
Physical Address Extension (PAE)	Yes	Yes
Processor ARK IDDiffers	92991	92981
Processor codeDiffers	SR2P7	SR2R7
Processor package size	45 x 52.5 mm	45 x 52.5 mm
ScalabilityDiffers	1S	2S
Supported instruction sets	AVX 2.0	AVX 2.0
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost Technology	2.0	2.0
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)Differs	Yes	No
Conflict-Free processor	Yes	Yes
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
Keyboard included	Yes	Yes
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR

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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