Product comparison · 2 pcs/workstations

Acer Aspire 990-H61 Intel® Pentium® G620 vs HP 400 + ZR2240w

76specifications compared
44differ
32identical
48known for one product only

Key differences

The HP 400 + ZR2240w has 2 more processor cores than the Acer Aspire 990-H61 Intel® Pentium® G620 (4 vs 2). The HP 400 + ZR2240w has 6 more processor threads than the Acer Aspire 990-H61 Intel® Pentium® G620 (8 vs 2). The HP 400 + ZR2240w has 0.6 GHz more processor frequency than the Acer Aspire 990-H61 Intel® Pentium® G620 (3.2 GHz vs 2.6 GHz). Only the HP 400 + ZR2240w has display included. Only the Acer Aspire 990-H61 Intel® Pentium® G620 has Intel Dual Display Capable Technology.

Processor family
- Aspire 990-H61 Intel® Pentium® G620:Intel® Pentium®
- 400 + ZR2240w:Intel® Xeon® 3000 Sequence
Processor model
- Aspire 990-H61 Intel® Pentium® G620:G620
- 400 + ZR2240w:W3565
Processor cores
- Aspire 990-H61 Intel® Pentium® G620:2
- 400 + ZR2240w:4
Processor threads
- Aspire 990-H61 Intel® Pentium® G620:2
- 400 + ZR2240w:8
Processor frequency
- Aspire 990-H61 Intel® Pentium® G620:2.6 GHz
- 400 + ZR2240w:3.2 GHz
Processor cache
- Aspire 990-H61 Intel® Pentium® G620:3 MB
- 400 + ZR2240w:8 MB
Bus type
- Aspire 990-H61 Intel® Pentium® G620:DMI
- 400 + ZR2240w:QPI
System bus rate
- Aspire 990-H61 Intel® Pentium® G620:5 GT/s
- 400 + ZR2240w:4.8 GT/s

Side by side

Differences highlightedShow differences only

Comparison of 990-H61, 400 + ZR2240w
124 specifications	A Acer Aspire 990-H61 Intel® Pentium® G620 Model 990-H61 View product	B HP 400 + ZR2240w View product
Processor18 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium®	Intel® Xeon® 3000 Sequence
Processor modelDiffers	G620	W3565
Processor coresDiffers	2	4
Processor threadsDiffers	2	8
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.46 GHz
Processor frequencyDiffers	2.6 GHz	3.2 GHz
Processor cacheDiffers	3 MB	8 MB
Processor cache type	Smart Cache	Smart Cache
Bus typeDiffers	DMI	QPI
FSB ParityKnown for one	Unknown — not stated by the source	No
System bus rateDiffers	5 GT/s	4.8 GT/s
Processor lithographyDiffers	32 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Pentium G600 Series for Desktop	Intel Xeon 3500 Series
Processor codenameDiffers	Sandy Bridge	Bloomfield
Thermal Design Power (TDP)Differs	65 W	130 W
Number of QPI linksKnown for one	Unknown — not stated by the source	1
Number of processors installed	1	1
Processor socketDiffers	LGA 1155 (Socket H2)	Socket B (LGA 1366)
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	731 M
Processing Die sizeKnown for one	Unknown — not stated by the source	263 mm²
CPU multiplier (bus/core ratio)Differs	26	24
SteppingDiffers	Q0	D0
Maximum internal memory supported by processorDiffers	32 GB	24 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processorDiffers	1066 MHz	800,1066 MHz
Memory bandwidth supported by processor (max)Differs	17 GB/s	25.6 GB/s
ECC supported by processorKnown for one	Unknown — not stated by the source	Yes
TcaseKnown for one	69.1 °C	Unknown — not stated by the source
PCI Express slots versionKnown for one	2.0	Unknown — not stated by the source
Memory3 differ
Internal memoryDiffers	4 GB	12 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Memory slotsDiffers	2x DIMM	6x DIMM
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
ECCKnown for one	Unknown — not stated by the source	Yes
Memory channelsDiffers	Dual-channel	Triple-channel
Maximum internal memoryKnown for one	8 GB	Unknown — not stated by the source
Storage2 differ
Optical drive typeDiffers	DVD-RW	DVD Super Multi
Total HDDs capacityKnown for one	Unknown — not stated by the source	1 TB
Number of HDDs installed	1	1
HDD capacityDiffers	500 GB	1 TB
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integrated	No	No
Total storage capacityKnown for one	500 GB	Unknown — not stated by the source
Graphicsidentical
Graphics cardKnown for one	Unknown — not stated by the source	No
On-board graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Not available	Unknown — not stated by the source
On-board graphics card familyKnown for one	Intel® HD Graphics	Unknown — not stated by the source
On-board graphics card modelKnown for one	Intel® HD Graphics	Unknown — not stated by the source
Number of displays supported (on-board graphics)Known for one	2	Unknown — not stated by the source
On-board graphics card base frequencyKnown for one	850 MHz	Unknown — not stated by the source
On-board graphics card dynamic frequency (max)Known for one	1100 MHz	Unknown — not stated by the source
Graphics card familyKnown for one	Intel	Unknown — not stated by the source
Performance2 differ
Product typeDiffers	PC	Workstation
Motherboard chipsetDiffers	Intel® H61	Intel® X58 Express
Networkidentical
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet (10/100/1000)
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Wi-FiKnown for one	Yes	Unknown — not stated by the source
Top Wi-Fi standardKnown for one	Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Wi-Fi standardsKnown for one	802.11b, 802.11g, Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Ports & interfaces1 differ
USB 2.0 ports quantityDiffers	9	12
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
PS/2 ports quantityKnown for one	Unknown — not stated by the source	2
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	1
HDMI ports quantityKnown for one	1	Unknown — not stated by the source
VGA (D-Sub) ports quantityKnown for one	1	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
Power1 differ
Power supplyDiffers	220 W	475 W
Design1 differ
Chassis typeDiffers	SFF	Minitower
Country of originKnown for one	Unknown — not stated by the source	China
Product colourKnown for one	Black	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	Windows 7 Home Premium	Windows 7 Professional
Operating system architecture	64-bit	64-bit
Display1 differ
Display includedDiffers	No	Yes
Display diagonalKnown for one	Unknown — not stated by the source	54.6 cm (21.5")
ResolutionKnown for one	Unknown — not stated by the source	1920 x 1080 pixels
Processor special features11 differ
CPU configuration (max)	1	1
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 Clear Video TechnologyKnown for one	Unknown — not stated by the source	No
Intel Demand Based SwitchingKnown for one	Unknown — not stated by the source	Yes
Intel Dual Display Capable TechnologyDiffers	Yes	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	Yes	No
Intel Fast Memory AccessDiffers	Yes	No
Intel Flex Memory AccessDiffers	Yes	No
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Intel Trusted Execution Technology	No	No
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)	No	No
Intel® AES New Instructions (Intel® AES-NI)	No	No
Intel® Clear Video HD Technology (Intel® CVT HD)	No	No
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel® Wireless Display (Intel® WiDi)	No	No
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Processor ARK IDDiffers	53480	39721
Processor codeDiffers	SR05R	SLBEV
Processor package sizeDiffers	37.5 x 37.5 mm	42.5 x 45.0 mm
Supported instruction setsDiffers	SSE4.1, SSE4.2	SSE4.2
Thermal Monitoring TechnologiesDiffers	Yes	No
Intel® Turbo Boost TechnologyDiffers	No	1.0
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Quick Sync Video Technology	No	No
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
Conflict-Free processorKnown for one	Unknown — not stated by the source	No
Audioidentical
Audio system	High Definition Audio	High Definition Audio
Weight & dimensions3 differ
WidthDiffers	180 mm	167.9 mm
DepthDiffers	367 mm	455.3 mm
HeightDiffers	270 mm	450.2 mm
WeightKnown for one	Unknown — not stated by the source	13.5 kg

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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