Product comparison · 2 pcs/workstations

HP 240 SFF + Z22n vs HP 251-a147d Intel® Celeron® J1800

116specifications compared
73differ
43identical
53known for one product only

Key differences

The HP 240 SFF + Z22n has 2 more processor cores than the HP 251-a147d Intel® Celeron® J1800 (4 vs 2). The HP 240 SFF + Z22n has 6 more processor threads than the HP 251-a147d Intel® Celeron® J1800 (8 vs 2). The HP 240 SFF + Z22n has 1.42 GHz more processor boost frequency than the HP 251-a147d Intel® Celeron® J1800 (4 GHz vs 2.58 GHz). Only the HP 251-a147d Intel® Celeron® J1800 has card reader integrated. Only the HP 251-a147d Intel® Celeron® J1800 has Wi-Fi.

Processor family
- 240 SFF + Z22n:Intel® Core™ i7
- 251-a147d Intel® Celeron® J1800:Intel® Celeron®
Processor model
- 240 SFF + Z22n:i7-6700
- 251-a147d Intel® Celeron® J1800:J1800
Processor cores
- 240 SFF + Z22n:4
- 251-a147d Intel® Celeron® J1800:2
Processor threads
- 240 SFF + Z22n:8
- 251-a147d Intel® Celeron® J1800:2
Processor boost frequency
- 240 SFF + Z22n:4 GHz
- 251-a147d Intel® Celeron® J1800:2.58 GHz
Processor frequency
- 240 SFF + Z22n:3.4 GHz
- 251-a147d Intel® Celeron® J1800:2.41 GHz
Processor cache
- 240 SFF + Z22n:8 MB
- 251-a147d Intel® Celeron® J1800:1 MB
Processor cache type
- 240 SFF + Z22n:Smart Cache
- 251-a147d Intel® Celeron® J1800:L2

Side by side

Differences highlightedShow differences only

Comparison of 240 SFF + Z22n, 251-a147d
169 specifications	A HP 240 SFF + Z22n View product	B HP 251-a147d Intel® Celeron® J1800 Model 251-a147d View product
Processor21 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Core™ i7	Intel® Celeron®
Processor generationKnown for one	6th gen Intel® Core™ i7	Unknown — not stated by the source
Processor modelDiffers	i7-6700	J1800
Processor coresDiffers	4	2
Processor threadsDiffers	8	2
Processor boost frequencyDiffers	4 GHz	2.58 GHz
Processor frequencyDiffers	3.4 GHz	2.41 GHz
Processor cacheDiffers	8 MB	1 MB
Processor cache typeDiffers	Smart Cache	L2
Bus typeKnown for one	DMI3	Unknown — not stated by the source
FSB Parity	No	No
System bus rateKnown for one	8 GT/s	Unknown — not stated by the source
Processor lithographyDiffers	14 nm	22 nm
Processor operating modesDiffers	64-bit	32-bit, 64-bit
Processor seriesDiffers	Intel Core i7-6700 Desktop series	Intel Celeron Processor J1000 series for Desktop
Processor codenameDiffers	Skylake	Bay Trail
Thermal Design Power (TDP)Differs	65 W	10 W
TcaseKnown for one	71 °C	Unknown — not stated by the source
Maximum number of PCI Express lanesDiffers	16	4
PCI Express configurationsDiffers	2x8, 1x8+2x4, 1x16	1x4
PCI Express slots versionDiffers	3.0	2.0
Number of processors installed	1	1
Processor socketDiffers	LGA 1151 (Socket H4)	BGA 1170
SteppingDiffers	R0	B3
Maximum internal memory supported by processorDiffers	64 GB	8 GB
Memory types supported by processorDiffers	DDR3L-SDRAM, DDR4-SDRAM	DDR3L-SDRAM
Memory clock speeds supported by processorDiffers	1333,1600,1866,2133 MHz	1333 MHz
Memory bandwidth supported by processor (max)Known for one	34.1 GB/s	Unknown — not stated by the source
ECC supported by processor	No	No
Memory voltage supported by processorKnown for one	1.35 V	Unknown — not stated by the source
TjunctionKnown for one	Unknown — not stated by the source	105 °C
Memory6 differ
Internal memoryDiffers	8 GB	2 GB
Maximum internal memoryDiffers	64 GB	8 GB
Internal memory typeDiffers	DDR4-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	1 x 8 GB	1 x 2 GB
Memory slotsDiffers	4x DIMM	2x DIMM
Memory clock speedDiffers	2133 MHz	1600 MHz
Memory channels	Dual-channel	Dual-channel
Non-ECCKnown for one	Yes	Unknown — not stated by the source
Storage4 differ
Total storage capacityDiffers	1 TB	500 GB
Optical drive type	DVD Super Multi	DVD Super Multi
Storage media	HDD	HDD
Total HDDs capacityDiffers	1 TB	500 GB
Number of HDDs installed	1	1
HDD capacityDiffers	1 TB	500 GB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integratedDiffers	No	Yes
Graphics4 differ
On-board graphics card	Yes	Yes
Discrete graphics card model	Not available	Not available
On-board graphics card family	Intel® HD Graphics	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics 530	Intel® HD Graphics
Maximum on-board graphics card memoryKnown for one	1.74 GB	Unknown — not stated by the source
Number of displays supported (on-board graphics)Differs	3	2
On-board graphics card base frequencyDiffers	350 MHz	688 MHz
On-board graphics card dynamic frequency (max)Differs	1150 MHz	792 MHz
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
Performance1 differ
Product typeDiffers	Workstation	PC
Motherboard chipsetKnown for one	Intel® C236	Unknown — not stated by the source
Optical driveidentical
Optical drives quantity	1	1
Network2 differ
Ethernet LAN	Yes	Yes
Ethernet LAN data ratesDiffers	10,100,1000 Mbit/s	10,100 Mbit/s
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Wi-FiDiffers	No	Yes
Top Wi-Fi standardKnown for one	Unknown — not stated by the source	Wi-Fi 4 (802.11n)
Wi-Fi standardsKnown for one	Unknown — not stated by the source	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers	2	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	8	1
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityKnown for one	0	Unknown — not stated by the source
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 quantityKnown for one	0	Unknown — not stated by the source
Thunderbolt 3 ports quantityKnown for one	0	Unknown — not stated by the source
DisplayPorts quantityKnown for one	3	Unknown — not stated by the source
HDMI ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Line-out	Yes	Yes
Line-in	Yes	Yes
Microphone in	Yes	Yes
VGA (D-Sub) ports quantityDiffers	0	1
DVI portDiffers	No	Yes
PS/2 ports quantityKnown for one	2	Unknown — not stated by the source
Serial ports quantityKnown for one	1	Unknown — not stated by the source
Expansion slotsidentical
PCI Express x1 (Gen 3.x) slotsKnown for one	2	Unknown — not stated by the source
PCI Express x4 (Gen 3.x) slotsKnown for one	1	Unknown — not stated by the source
PCI Express x16 (Gen 3.x) slotsKnown for one	1	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	240 W	65 W
Designidentical
Chassis typeKnown for one	SFF	Unknown — not stated by the source
Liquid cooling system	No	No
Product colour	Black	Black
Country of origin	China	China
Software1 differ
Operating system installedDiffers	Windows 7 Professional	Windows 10 Home
Operating system architecture	64-bit	64-bit
Recovery operating systemKnown for one	Windows 10 Pro	Unknown — not stated by the source
Display1 differ
Display includedDiffers	Yes	No
Display diagonalKnown for one	54.6 cm (21.5")	Unknown — not stated by the source
Display typeKnown for one	LED	Unknown — not stated by the source
Display resolutionKnown for one	1920 x 1080 pixels	Unknown — not stated by the source
Panel typeKnown for one	IPS	Unknown — not stated by the source
Native aspect ratioKnown for one	16:9	Unknown — not stated by the source
Contrast ratio (typical)Known for one	1000:1	Unknown — not stated by the source
Display brightnessKnown for one	250 cd/m²	Unknown — not stated by the source
Viewing angle, horizontalKnown for one	178°	Unknown — not stated by the source
Viewing angle, verticalKnown for one	178°	Unknown — not stated by the source
Processor special features24 differ
CPU configuration (max)	1	1
Embedded options availableDiffers	Yes	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	14 nm	Unknown — not stated by the source
Idle StatesKnown for one	Yes	Unknown — not stated by the source
Intel 64	Yes	Yes
Intel Clear Video TechnologyDiffers	Yes	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt StateDiffers	Yes	No
Intel FDI Technology	No	No
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Identity Protection Technology versionDiffers	1.00	0.00
Intel Rapid Storage Technology	No	No
Intel Secure Key Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Small Business Advantage (SBA) versionDiffers	1.00	0.00
Intel Software Guard Extensions (Intel SGX)Known for one	Yes	Unknown — not stated by the source
Intel Stable Image Platform Program (SIPP)Differs	Yes	No
Intel Stable Image Platform Program (SIPP) versionDiffers	1.00	0.00
Intel TSX-NIKnown for one	Yes	Unknown — not stated by the source
Intel TSX-NI versionKnown for one	1.00	Unknown — not stated by the source
Intel Trusted Execution TechnologyDiffers	Yes	No
Intel VT-x with Extended Page Tables (EPT)Differs	Yes	No
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Differs	Yes	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	Yes	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Differs	Yes	No
Intel® InTru™ 3D TechnologyDiffers	Yes	No
Intel® Insider™Differs	Yes	No
Intel® OS GuardKnown for one	Yes	Unknown — not stated by the source
Intel® Secure KeyKnown for one	Yes	Unknown — not stated by the source
Intel® Small Business Advantage (Intel® SBA)Differs	Yes	No
Intel® Wireless Display (Intel® WiDi)Differs	Yes	No
Processor ARK IDDiffers	88196	78866
Processor codeDiffers	SR2BT	SR1SD
Processor package sizeDiffers	37.5 x 37.5 mm	25 X 27 mm
ScalabilityKnown for one	1S	Unknown — not stated by the source
Supported instruction setsKnown for one	SSE4.1, AVX 2.0, SSE4.2	Unknown — not stated by the source
Thermal Monitoring TechnologiesDiffers	Yes	No
Thermal solution specificationKnown for one	PCG 2015C	Unknown — not stated by the source
Intel® Turbo Boost TechnologyDiffers	2.0	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Quick Sync Video Technology	Yes	Yes
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Identity Protection Technology (Intel® IPT)Differs	Yes	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Conflict-Free processor	Yes	Yes
Intel HD GraphicsKnown for one	Unknown — not stated by the source	Yes
Intel® Built-in Visuals TechnologyKnown for one	Unknown — not stated by the source	Yes
Intel® Smart CacheKnown for one	Unknown — not stated by the source	No
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Audioidentical
Audio systemKnown for one	HD	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	100 mm	165.1 mm
DepthDiffers	384 mm	375 mm
HeightDiffers	337 mm	363.9 mm
WeightDiffers	5.7 kg	4.87 kg
Packaging contentidentical
Mouse included	Yes	Yes
Keyboard included	Yes	Yes
Sustainabilityidentical
Sustainability certificatesKnown for one	ENERGY STAR	Unknown — not stated by the source

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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