Product comparison · 2 pcs/workstations

Acer Aspire TC Intel® Core™ i5 i5-6400 vs HP 251-a149d Intel® Pentium® J2900

111specifications compared
65differ
46identical
43known for one product only

Key differences

The Acer Aspire TC Intel® Core™ i5 i5-6400 has 0.64 GHz more processor boost frequency than the HP 251-a149d Intel® Pentium® J2900 (3.3 GHz vs 2.66 GHz). The Acer Aspire TC Intel® Core™ i5 i5-6400 has 0.29 GHz more processor frequency than the HP 251-a149d Intel® Pentium® J2900 (2.7 GHz vs 2.41 GHz). The Acer Aspire TC Intel® Core™ i5 i5-6400 has 4 MB more processor cache than the HP 251-a149d Intel® Pentium® J2900 (6 MB vs 2 MB). Only the HP 251-a149d Intel® Pentium® J2900 has DVI port. Only the Acer Aspire TC Intel® Core™ i5 i5-6400 has Intel Clear Video Technology.

Processor family
- Aspire TC Intel® Core™ i5 i5-6400:Intel® Core™ i5
- 251-a149d Intel® Pentium® J2900:Intel® Pentium®
Processor model
- Aspire TC Intel® Core™ i5 i5-6400:i5-6400
- 251-a149d Intel® Pentium® J2900:J2900
Processor boost frequency
- Aspire TC Intel® Core™ i5 i5-6400:3.3 GHz
- 251-a149d Intel® Pentium® J2900:2.66 GHz
Processor frequency
- Aspire TC Intel® Core™ i5 i5-6400:2.7 GHz
- 251-a149d Intel® Pentium® J2900:2.41 GHz
Processor cache
- Aspire TC Intel® Core™ i5 i5-6400:6 MB
- 251-a149d Intel® Pentium® J2900:2 MB
Processor cache type
- Aspire TC Intel® Core™ i5 i5-6400:Smart Cache
- 251-a149d Intel® Pentium® J2900:L2
Processor lithography
- Aspire TC Intel® Core™ i5 i5-6400:14 nm
- 251-a149d Intel® Pentium® J2900:22 nm
Processor operating modes
- Aspire TC Intel® Core™ i5 i5-6400:64-bit
- 251-a149d Intel® Pentium® J2900:32-bit, 64-bit

Side by side

Differences highlightedShow differences only

Comparison of TC, 251-a149d
154 specifications	A Acer Aspire TC Intel® Core™ i5 i5-6400 Model TC View product	B HP 251-a149d Intel® Pentium® J2900 Model 251-a149d View product
Processor20 differ
Processor familyDiffers	Intel® Core™ i5	Intel® Pentium®
Processor generationKnown for one	6th gen Intel® Core™ i5	Unknown — not stated by the source
Processor modelDiffers	i5-6400	J2900
Processor boost frequencyDiffers	3.3 GHz	2.66 GHz
Processor frequencyDiffers	2.7 GHz	2.41 GHz
Processor cacheDiffers	6 MB	2 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 modesDiffers	64-bit	32-bit, 64-bit
Processor seriesDiffers	Intel Core i5-6400 Desktop series	Intel Pentium J2000 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	1x16, 2x8, 1x8+2x4	1x4
PCI Express slots versionDiffers	3.0	2.0
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	2133,1333,1600,1866 MHz	1333 MHz
Memory bandwidth supported by processor (max)Differs	34.1 GB/s	21.3 GB/s
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
Memory2 differ
Internal memoryDiffers	8 GB	2 GB
Maximum internal memoryDiffers	16 GB	8 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
Storage4 differ
Total storage capacityDiffers	2 TB	500 GB
Optical drive typeDiffers	DVD±RW	DVD Super Multi
HDD capacityDiffers	2 TB	500 GB
HDD interfaceDiffers	SATA	SATA III
Number of HDDs installedKnown for one	Unknown — not stated by the source	1
HDD speedKnown for one	Unknown — not stated by the source	5900 RPM
Compatible memory cardsKnown for one	Unknown — not stated by the source	MS PRO, Memory Stick (MS), SD, SDHC, SDXC
Graphics6 differ
Discrete graphics card modelDiffers	NVIDIA® GeForce® GT 720	Not available
Discrete graphics card memoryKnown for one	2 GB	Unknown — not stated by the source
On-board graphics card modelDiffers	Intel® HD Graphics 530	Intel® HD Graphics
Maximum on-board graphics card memoryKnown for one	64 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	950 MHz	896 MHz
On-board graphics card DirectX versionDiffers	12.0	11.2
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
On-board graphics card burst frequencyKnown for one	Unknown — not stated by the source	896 MHz
Performanceidentical
Motherboard chipsetKnown for one	Intel® H110	Unknown — not stated by the source
Motherboard form factorKnown for one	Unknown — not stated by the source	mini ITX
Network3 differ
Ethernet LAN data ratesDiffers	1000 Mbit/s	10,100 Mbit/s
Top Wi-Fi standardDiffers	Wi-Fi 5 (802.11ac)	Wi-Fi 4 (802.11n)
Wi-Fi standardsDiffers	Wi-Fi 5 (802.11ac)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
BluetoothKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers	2	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	4	1
HDMI ports quantityDiffers	2	0
Line-outKnown for one	Yes	Unknown — not stated by the source
Line-inKnown for one	Yes	Unknown — not stated by the source
VGA (D-Sub) ports quantityDiffers	2	1
DVI portDiffers	No	Yes
DC-in jackKnown for one	Unknown — not stated by the source	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
PCI slotsKnown for one	2	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	220 W	65 W
Design1 differ
Chassis typeDiffers	Tower	Mini Tower
Placement supportedKnown for one	Unknown — not stated by the source	Vertical
Country of originKnown for one	Unknown — not stated by the source	China
Processor special features20 differ
Graphics & IMC lithographyDiffers	14 nm	22 nm
Intel Clear Video TechnologyDiffers	Yes	No
Intel Enhanced Halt StateDiffers	Yes	No
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) versionDiffers	1.00	0.00
Intel Software Guard Extensions (Intel SGX)Known for one	Yes	Unknown — not stated by the source
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 VT-x with Extended Page Tables (EPT)Differs	Yes	No
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® Smart CacheDiffers	Yes	No
Intel® Wireless Display (Intel® WiDi)Differs	Yes	No
Processor ARK IDDiffers	88185	78868
Processor codeDiffers	SR2BY	SR1SB
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	SSE4.2, AVX 2.0, SSE4.1	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® Identity Protection Technology (Intel® IPT)Differs	Yes	No
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® Small Business Advantage (Intel® SBA)Known for one	Unknown — not stated by the source	No
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Weight & dimensions3 differ
WidthDiffers	175 mm	165.1 mm
DepthDiffers	425.5 mm	375 mm
HeightDiffers	381.4 mm	363.9 mm
WeightKnown for one	Unknown — not stated by the source	4.87 kg
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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