Product comparison · 2 pcs/workstations

HP Pavilion 550-254na Intel® Core™ i5 i5-6400 vs HP 840 + DreamColor Z27x

103specifications compared
62differ
41identical
87known for one product only

Key differences

Processor family
- Pavilion 550-254na Intel® Core™ i5 i5-6400:Intel® Core™ i5
- 840 + DreamColor Z27x:Intel® Xeon® E5 v4
Processor model
- Pavilion 550-254na Intel® Core™ i5 i5-6400:i5-6400
- 840 + DreamColor Z27x:E5-2680V4
Processor cores
- Pavilion 550-254na Intel® Core™ i5 i5-6400:4
- 840 + DreamColor Z27x:14
Processor threads
- Pavilion 550-254na Intel® Core™ i5 i5-6400:4
- 840 + DreamColor Z27x:28
Processor frequency
- Pavilion 550-254na Intel® Core™ i5 i5-6400:2.7 GHz
- 840 + DreamColor Z27x:2.4 GHz
Processor cache
- Pavilion 550-254na Intel® Core™ i5 i5-6400:6 MB
- 840 + DreamColor Z27x:35 MB
Bus type
- Pavilion 550-254na Intel® Core™ i5 i5-6400:DMI3
- 840 + DreamColor Z27x:QPI
System bus rate
- Pavilion 550-254na Intel® Core™ i5 i5-6400:8 GT/s
- 840 + DreamColor Z27x:9.6 GT/s

Side by side

Differences highlightedShow differences only

Comparison of 550-254na, 840 + DreamColor Z27x
190 specifications	A HP Pavilion 550-254na Intel® Core™ i5 i5-6400 Model 550-254na View product	B HP 840 + DreamColor Z27x View product
Processor20 differ
Processor familyDiffers	Intel® Core™ i5	Intel® Xeon® E5 v4
Processor generationKnown for one	6th gen Intel® Core™ i5	Unknown — not stated by the source
Processor modelDiffers	i5-6400	E5-2680V4
Processor coresDiffers	4	14
Processor threadsDiffers	4	28
Processor frequencyDiffers	2.7 GHz	2.4 GHz
Processor cacheDiffers	6 MB	35 MB
Bus typeDiffers	DMI3	QPI
System bus rateDiffers	8 GT/s	9.6 GT/s
Processor seriesDiffers	Intel Core i5-6400 Desktop series	Intel Xeon E5-2600 v4
Processor codenameDiffers	Skylake	Broadwell
Thermal Design Power (TDP)Differs	65 W	120 W
TcaseDiffers	71 °C	86 °C
Maximum number of PCI Express lanesDiffers	16	40
PCI Express configurationsKnown for one	1x16, 2x8, 1x8+2x4	Unknown — not stated by the source
Processor socketDiffers	LGA 1151 (Socket H4)	LGA 2011-v3
SteppingDiffers	R0	M0
Maximum internal memory supported by processorDiffers	64 GB	1.53 TB
Memory types supported by processorDiffers	DDR3L-SDRAM, DDR4-SDRAM	DDR4-SDRAM
Memory clock speeds supported by processorDiffers	2133,1333,1600,1866 MHz	1600,1866,2133,2400 MHz
Memory bandwidth supported by processor (max)Differs	34.1 GB/s	76.8 GB/s
ECC supported by processorDiffers	No	Yes
Memory voltage supported by processorKnown for one	1.35 V	Unknown — not stated by the source
Number of QPI linksKnown for one	Unknown — not stated by the source	2
Memory7 differ
Internal memoryDiffers	8 GB	32 GB
Maximum internal memoryDiffers	16 GB	512 GB
Internal memory typeDiffers	DDR3L-SDRAM	DDR4-SDRAM
Memory layout (slots x size)Differs	2 x 4 GB	4 x 8 GB
Memory slotsDiffers	2x DIMM	8x DIMM
Memory clock speedDiffers	1600 MHz	2133 MHz
Memory channelsDiffers	Dual-channel	Quad-channel
ECCKnown for one	Unknown — not stated by the source	Yes
Storage3 differ
Total storage capacityDiffers	2 TB	512 GB
Storage mediaDiffers	HDD	SSD
Number of storage drives installedKnown for one	1	Unknown — not stated by the source
Total HDDs capacityKnown for one	2 TB	Unknown — not stated by the source
Number of HDDs installedKnown for one	1	Unknown — not stated by the source
HDD capacityKnown for one	2 TB	Unknown — not stated by the source
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
HDD speedKnown for one	5400 RPM	Unknown — not stated by the source
Card reader integratedDiffers	Yes	No
Compatible memory cardsKnown for one	MS PRO, Memory Stick (MS), SD, SDHC, SDXC	Unknown — not stated by the source
Total SSDs capacityKnown for one	Unknown — not stated by the source	512 GB
Number of SSDs installedKnown for one	Unknown — not stated by the source	1
SSD capacityKnown for one	Unknown — not stated by the source	512 GB
SSD interfaceKnown for one	Unknown — not stated by the source	PCI Express
Graphics2 differ
On-board graphics cardDiffers	Yes	No
On-board graphics card familyKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card modelDiffers	Intel® HD Graphics 530	Not available
Maximum on-board graphics card memoryKnown for one	64 GB	Unknown — not stated by the source
Number of displays supported (on-board graphics)Known for one	3	Unknown — not stated by the source
On-board graphics card base frequencyKnown for one	350 MHz	Unknown — not stated by the source
On-board graphics card dynamic frequency (max)Known for one	950 MHz	Unknown — not stated by the source
On-board graphics card DirectX versionKnown for one	12.0	Unknown — not stated by the source
On-board graphics card IDKnown for one	1912	Unknown — not stated by the source
On-board graphics card OpenGL versionKnown for one	4.4	Unknown — not stated by the source
Discrete graphics cardKnown for one	Unknown — not stated by the source	No
Performance2 differ
Product typeDiffers	PC	Workstation
Motherboard chipsetDiffers	Intel® H110	Intel® C612
Audio output channelsKnown for one	5.1 channels	Unknown — not stated by the source
Network1 differ
Wi-FiDiffers	Yes	No
Top Wi-Fi standardKnown for one	Wi-Fi 5 (802.11ac)	Unknown — not stated by the source
Wi-Fi standardsKnown for one	802.11a, Wi-Fi 5 (802.11ac), 802.11b, 802.11g, Wi-Fi 4 (802.11n)	Unknown — not stated by the source
BluetoothKnown for one	Yes	Unknown — not stated by the source
Bluetooth versionKnown for one	4.0	Unknown — not stated by the source
Cabling technologyKnown for one	Unknown — not stated by the source	10/100/1000Base-T(X)
Ports & interfaces3 differ
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	4	8
Thunderbolt ports quantityKnown for one	0	Unknown — not stated by the source
Thunderbolt 2 ports quantityKnown for one	0	Unknown — not stated by the source
DisplayPorts quantityKnown for one	0	Unknown — not stated by the source
HDMI ports quantityDiffers	2	0
Combo headphone/mic portKnown for one	No	Unknown — not stated by the source
Line-outKnown for one	Yes	Unknown — not stated by the source
Line-inKnown for one	Yes	Unknown — not stated by the source
Mini DisplayPorts quantityKnown for one	0	Unknown — not stated by the source
PS/2 ports quantityDiffers	0	2
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
DC-in jackKnown for one	No	Unknown — not stated by the source
Expansion slots1 differ
PCI Express x16 slotsKnown for one	1	Unknown — not stated by the source
PCI Express x16 (Gen 3.x) slotsDiffers	1	2
Number of 3.5" baysKnown for one	Unknown — not stated by the source	4
PCI Express x4 (Gen 2.x) slotsKnown for one	Unknown — not stated by the source	1
PCI Express x8 (Gen 3.x) slotsKnown for one	Unknown — not stated by the source	1
Power1 differ
Power supplyDiffers	180 W	1125 W
Power supply input voltageKnown for one	100 - 240 V	Unknown — not stated by the source
Power supply input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Design2 differ
Chassis typeDiffers	Desktop	Tower
Placement supportedKnown for one	Vertical	Unknown — not stated by the source
Liquid cooling systemKnown for one	No	Unknown — not stated by the source
Product colourDiffers	Black, Silver	Black
Number of 5.25" baysKnown for one	Unknown — not stated by the source	2
Software1 differ
Operating system installedDiffers	Windows 10 Home	Windows 7 Professional
Recovery operating systemKnown for one	Unknown — not stated by the source	Windows 10 Pro
Display1 differ
Display includedDiffers	No	Yes
Display diagonalKnown for one	Unknown — not stated by the source	68.6 cm (27")
Display resolutionKnown for one	Unknown — not stated by the source	2560 x 1440 pixels
Native aspect ratioKnown for one	Unknown — not stated by the source	16:9
Contrast ratio (typical)Known for one	Unknown — not stated by the source	800:1
Viewing angle, horizontalKnown for one	Unknown — not stated by the source	178°
Viewing angle, verticalKnown for one	Unknown — not stated by the source	178°
Processor special features13 differ
CPU configuration (max)Differs	1	2
Embedded options availableDiffers	No	Yes
Graphics & IMC lithographyKnown for one	14 nm	Unknown — not stated by the source
Intel Clear Video TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel Identity Protection Technology versionDiffers	1.00	0.00
Intel Small Business Advantage (SBA) versionKnown for one	1.00	Unknown — not stated by the source
Intel Software Guard Extensions (Intel SGX)Known for one	Yes	Unknown — not stated by the source
Intel Stable Image Platform Program (SIPP)Known for one	No	Unknown — not stated by the source
Intel Stable Image Platform Program (SIPP) versionKnown for one	0.00	Unknown — not stated by the source
Intel TSX-NIDiffers	No	Yes
Intel TSX-NI versionDiffers	0.00	1.00
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel® Clear Video HD Technology (Intel® CVT HD)Known for one	Yes	Unknown — not stated by the source
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Yes	Unknown — not stated by the source
Intel® InTru™ 3D TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel® Insider™Known for one	Yes	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Yes	Unknown — not stated by the source
Intel® Wireless Display (Intel® WiDi)Known for one	Yes	Unknown — not stated by the source
Processor ARK IDDiffers	88185	91754
Processor codeDiffers	SR2BY	SR2N7
Processor package sizeDiffers	37.5 x 37.5 mm	45 x 52.5 mm
ScalabilityDiffers	1S	2S
Supported instruction setsDiffers	SSE4.2, AVX 2.0, SSE4.1	AVX 2.0
Thermal solution specificationKnown for one	PCG 2015C	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Quick Sync Video TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel® Identity Protection Technology (Intel® IPT)Differs	Yes	No
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	Yes
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	No
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Operational conditionsidentical
Operating temperature (T-T)Known for one	10 - 40 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-20 - 60 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	10 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 90%	Unknown — not stated by the source
Operating altitudeKnown for one	0 - 3050 m	Unknown — not stated by the source
Non-operating altitudeKnown for one	0 - 4570 m	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	165.1 mm	203 mm
DepthDiffers	375 mm	525 mm
HeightDiffers	363.9 mm	444 mm
WeightDiffers	7.15 kg	21.1 kg
Packaging dataidentical
Package widthKnown for one	499 mm	Unknown — not stated by the source
Package depthKnown for one	240 mm	Unknown — not stated by the source
Package heightKnown for one	520 mm	Unknown — not stated by the source
Package weightKnown for one	9.7 kg	Unknown — not stated by the source
Certificatesidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Sustainability1 differ
Sustainability certificatesDiffers	EPEAT Silver, ENERGY STAR	ENERGY STAR
Optical driveidentical
Optical drives quantityKnown for one	Unknown — not stated by the source	1
BD interface typeKnown for one	Unknown — not stated by the source	SATA
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	HD

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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