Product comparison · 2 pcs/workstations

Acer Veriton X X2640G-G4400Z Intel Pentium G G4400 vs HP 251-a147d Intel® Celeron® J1800

96specifications compared
53differ
43identical
56known for one product only

Key differences

The Acer Veriton X X2640G-G4400Z Intel Pentium G G4400 has 0.89 GHz more processor frequency than the HP 251-a147d Intel® Celeron® J1800 (3.3 GHz vs 2.41 GHz). The Acer Veriton X X2640G-G4400Z Intel Pentium G G4400 has 2 MB more processor cache than the HP 251-a147d Intel® Celeron® J1800 (3 MB vs 1 MB). The HP 251-a147d Intel® Celeron® J1800 has 8 nm more processor lithography than the Acer Veriton X X2640G-G4400Z Intel Pentium G G4400 (22 nm vs 14 nm). Only the Acer Veriton X X2640G-G4400Z Intel Pentium G G4400 has ECC supported by processor. Only the HP 251-a147d Intel® Celeron® J1800 has Wi-Fi.

Processor family
- Veriton X X2640G-G4400Z Intel Pentium G G4400:Intel Pentium G
- 251-a147d Intel® Celeron® J1800:Intel® Celeron®
Processor model
- Veriton X X2640G-G4400Z Intel Pentium G G4400:G4400
- 251-a147d Intel® Celeron® J1800:J1800
Processor frequency
- Veriton X X2640G-G4400Z Intel Pentium G G4400:3.3 GHz
- 251-a147d Intel® Celeron® J1800:2.41 GHz
Processor cache
- Veriton X X2640G-G4400Z Intel Pentium G G4400:3 MB
- 251-a147d Intel® Celeron® J1800:1 MB
Processor cache type
- Veriton X X2640G-G4400Z Intel Pentium G G4400:Smart Cache
- 251-a147d Intel® Celeron® J1800:L2
Processor lithography
- Veriton X X2640G-G4400Z Intel Pentium G G4400:14 nm
- 251-a147d Intel® Celeron® J1800:22 nm
Processor codename
- Veriton X X2640G-G4400Z Intel Pentium G G4400:Skylake
- 251-a147d Intel® Celeron® J1800:Bay Trail
Thermal Design Power (TDP)
- Veriton X X2640G-G4400Z Intel Pentium G G4400:47, 54
- 251-a147d Intel® Celeron® J1800:10 W

Side by side

Differences highlightedShow differences only

Comparison of X2640G-G4400Z, 251-a147d
152 specifications	A Acer Veriton X X2640G-G4400Z Intel Pentium G G4400 Model X2640G-G4400Z View product	B HP 251-a147d Intel® Celeron® J1800 Model 251-a147d View product
Processor18 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel Pentium G	Intel® Celeron®
Processor modelDiffers	G4400	J1800
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	3.3 GHz	2.41 GHz
Processor cacheDiffers	3 MB	1 MB
Processor cache typeDiffers	Smart Cache	L2
Bus typeKnown for one	DMI3	Unknown — not stated by the source
System bus rateKnown for one	8 GT/s	Unknown — not stated by the source
Processor lithographyDiffers	14 nm	22 nm
Processor operating modes	32-bit, 64-bit	32-bit, 64-bit
Processor seriesDiffers	Intel Pentium G4400 series for Desktop	Intel Celeron Processor J1000 series for Desktop
Processor codenameDiffers	Skylake	Bay Trail
Thermal Design Power (TDP)Differs	47, 54	10 W
Maximum number of PCI Express lanesDiffers	16	4
PCI Express configurationsDiffers	1x16, 1x8+2x4, 2x8	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	1866,1333,2133,1600 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 processorDiffers	Yes	No
Memory voltage supported by processorKnown for one	1.35 V	Unknown — not stated by the source
Processor boost frequencyKnown for one	Unknown — not stated by the source	2.58 GHz
FSB ParityKnown for one	Unknown — not stated by the source	No
TjunctionKnown for one	Unknown — not stated by the source	105 °C
Memory3 differ
Internal memoryDiffers	4 GB	2 GB
Maximum internal memoryDiffers	16 GB	8 GB
Internal memory typeDiffers	DDR4-SDRAM	DDR3-SDRAM
Memory channels	Dual-channel	Dual-channel
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 2 GB
Memory slotsKnown for one	Unknown — not stated by the source	2x DIMM
Memory clock speedKnown for one	Unknown — not stated by the source	1600 MHz
Storage2 differ
Total storage capacity	500 GB	500 GB
Optical drive typeDiffers	DVD±RW	DVD Super Multi
Storage media	HDD	HDD
Number of storage drives installedKnown for one	1	Unknown — not stated by the source
Number of HDDs installed	1	1
HDD capacity	500 GB	500 GB
HDD interfaceDiffers	SATA II	SATA
Total HDDs capacityKnown for one	Unknown — not stated by the source	500 GB
HDD speedKnown for one	Unknown — not stated by the source	7200 RPM
Card reader integratedKnown for one	Unknown — not stated by the source	Yes
Graphics4 differ
Discrete graphics cardKnown for one	No	Unknown — not stated by the source
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 510	Intel® HD Graphics
Maximum on-board graphics card memoryKnown for one	1.7 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	1000 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	0x1902	Unknown — not stated by the source
On-board graphics card OpenGL versionKnown for one	4.4	Unknown — not stated by the source
Graphics card Open GL supportKnown for one	Yes	Unknown — not stated by the source
Performanceidentical
Product type	PC	PC
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 & interfaces1 differ
USB 2.0 ports quantity	4	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	4	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
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 quantity	1	1
DVI port	Yes	Yes
Expansion slotsidentical
PCI Express x1 slotsKnown for one	1	Unknown — not stated by the source
PCI Express x16 slotsKnown for one	1	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	220 W	65 W
Designidentical
Product colour	Black	Black
Liquid cooling systemKnown for one	Unknown — not stated by the source	No
Country of originKnown for one	Unknown — not stated by the source	China
Software1 differ
Operating system installedDiffers	Windows 7 Professional	Windows 10 Home
Operating system architecture	64-bit	64-bit
Processor special features18 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 Enhanced Halt StateDiffers	Yes	No
Intel HD Graphics	Yes	Yes
Intel Identity Protection Technology versionDiffers	1.00	0.00
Intel Secure Key Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel Small Business Advantage (SBA) version	0.00	0.00
Intel Software Guard Extensions (Intel SGX)Known for one	Yes	Unknown — not stated by the source
Intel Stable Image Platform Program (SIPP)	No	No
Intel Stable Image Platform Program (SIPP) version	0.00	0.00
Intel TSX-NIKnown for one	No	Unknown — not stated by the source
Intel TSX-NI versionKnown for one	0.00	Unknown — not stated by the source
Intel Trusted Execution Technology	No	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® Built-in Visuals Technology	Yes	Yes
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	No	Unknown — not stated by the source
Intel® Secure KeyKnown for one	Yes	Unknown — not stated by the source
Intel® Small Business Advantage (Intel® SBA)	No	No
Intel® Smart CacheDiffers	Yes	No
Intel® Wireless Display (Intel® WiDi)Differs	Yes	No
Processor ARK IDDiffers	88179	78866
Processor codeDiffers	SR2DC	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, 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 Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® Quick Sync Video Technology	Yes	Yes
Intel® Identity Protection Technology (Intel® IPT)Differs	Yes	No
Conflict-Free processor	Yes	Yes
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	No
Intel Dual Display Capable TechnologyKnown for one	Unknown — not stated by the source	No
Intel FDI TechnologyKnown for one	Unknown — not stated by the source	No
Intel Fast Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Flex Memory AccessKnown for one	Unknown — not stated by the source	No
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	No
Intel® Anti-Theft Technology (Intel® AT)Known for one	Unknown — not stated by the source	No
Weight & dimensions3 differ
WidthDiffers	100 mm	165.1 mm
DepthDiffers	353 mm	375 mm
HeightDiffers	264 mm	363.9 mm
WeightKnown for one	Unknown — not stated by the source	4.87 kg
Other featuresidentical
Intel segment taggingKnown for one	Enterprise, Small Business	Unknown — not stated by the source
Optical driveidentical
Optical drives quantityKnown for one	Unknown — not stated by the source	1
Displayidentical
Display includedKnown for one	Unknown — not stated by the source	No
Packaging contentidentical
Mouse includedKnown for one	Unknown — not stated by the source	Yes
Keyboard 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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