Product comparison · 2 all-in-one pcs/workstations

Acer 620 Intel® Pentium® G840 vs Acer Z5771- H61

96specifications compared
33differ
63identical
44known for one product only

Key differences

Display diagonal
- 620 Intel® Pentium® G840:54.6 cm (21.5")
- Z5771- H61:58.4 cm (23")
Processor family
- 620 Intel® Pentium® G840:Intel® Pentium®
- Z5771- H61:Intel® Core™ i5
Processor model
- 620 Intel® Pentium® G840:G840
- Z5771- H61:i5-2400S
Processor cores
- 620 Intel® Pentium® G840:2
- Z5771- H61:4
Processor threads
- 620 Intel® Pentium® G840:2
- Z5771- H61:4
Processor frequency
- 620 Intel® Pentium® G840:2.8 GHz
- Z5771- H61:2.5 GHz
Processor cache
- 620 Intel® Pentium® G840:3 MB
- Z5771- H61:6 MB
CPU multiplier (bus/core ratio)
- 620 Intel® Pentium® G840:28
- Z5771- H61:31

Side by side

Differences highlightedShow differences only

Comparison of 620, Z5771- H61
140 specifications	A Acer 620 Intel® Pentium® G840 Model 620 View product	B Acer Z5771- H61 View product
Display1 differ
Display diagonalDiffers	54.6 cm (21.5")	58.4 cm (23")
Display resolution	1920 x 1080 pixels	1920 x 1080 pixels
HD type	Full HD	Full HD
LED backlightKnown for one	Unknown — not stated by the source	Yes
Native aspect ratio	16:9	16:9
Display brightnessKnown for one	Unknown — not stated by the source	250 cd/m²
TouchscreenKnown for one	No	Unknown — not stated by the source
Processor8 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium®	Intel® Core™ i5
Processor generationKnown for one	Unknown — not stated by the source	2nd gen Intel® Core™ i5
Processor modelDiffers	G840	i5-2400S
Processor coresDiffers	2	4
Processor threadsDiffers	2	4
Processor boost frequencyKnown for one	Unknown — not stated by the source	3.3 GHz
Processor frequencyDiffers	2.8 GHz	2.5 GHz
Processor cacheDiffers	3 MB	6 MB
Processor cache type	Smart Cache	Smart Cache
Processor socket	LGA 1155 (Socket H2)	LGA 1155 (Socket H2)
System bus rate	5 GT/s	5 GT/s
Thermal Design Power (TDP)	65 W	65 W
Bus type	DMI	DMI
CPU multiplier (bus/core ratio)Differs	28	31
FSB ParityKnown for one	Unknown — not stated by the source	No
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	16
PCI Express slots version	2.0	2.0
Processor codename	Sandy Bridge	Sandy Bridge
Processor lithography	32 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesKnown for one	Unknown — not stated by the source	Intel Core i5-2400 Desktop Series
SteppingDiffers	Q0	D2
Tcase	69.1 °C	69.1 °C
Conflict-Free processorKnown for one	Unknown — not stated by the source	No
Maximum internal memory supported by processor	32 GB	32 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processor	1066,1333 MHz	1066,1333 MHz
Memory bandwidth supported by processor (max)	21 GB/s	21 GB/s
Memory channels supported by processor	Dual	Dual
ECC supported by processorKnown for one	Unknown — not stated by the source	No
Processor codeKnown for one	SR05P	Unknown — not stated by the source
Memory1 differ
Internal memoryDiffers	4 GB	6 GB
Internal memory type	DDR3-SDRAM	DDR3-SDRAM
Maximum internal memory	8 GB	8 GB
Memory layout (slots x size)Known for one	Unknown — not stated by the source	1 x 2 + 1 x 4 GB
Memory clock speedKnown for one	1066 MHz	Unknown — not stated by the source
Storage3 differ
Total storage capacity	1 TB	1 TB
Number of HDDs installed	1	1
HDD speed	5400 RPM	5400 RPM
HDD interfaceDiffers	SATA II	SATA
Optical drive typeDiffers	DVD-RW	Blu-Ray DVD Combo
Card reader integrated	Yes	Yes
Compatible memory cardsDiffers	Memory Stick (MS), MMC, MS PRO Duo, SD, SDHC, xD	Memory Stick (MS), MMC, MS PRO Duo, MS Pro-HG Duo, SD, SDHC
HDD capacityKnown for one	1 TB	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card model	NVIDIA® GeForce® GT 520	NVIDIA® GeForce® GT 520
Discrete graphics card memory	1 GB	1 GB
On-board graphics cardKnown for one	Unknown — not stated by the source	Yes
On-board graphics card familyKnown for one	Unknown — not stated by the source	Intel® HD Graphics
On-board graphics card modelDiffers	Intel® HD Graphics	Intel® HD Graphics 2000
Number of displays supported (on-board graphics)	2	2
On-board graphics card base frequency	850 MHz	850 MHz
On-board graphics card dynamic frequency (max)	1100 MHz	1100 MHz
On-board graphics card IDKnown for one	Unknown — not stated by the source	0x102
Audioidentical
Built-in microphone	Yes	Yes
Cameraidentical
Built-in camera	Yes	Yes
Networkidentical
Wi-Fi	Yes	Yes
Wi-Fi standards	802.11b, 802.11g, Wi-Fi 4 (802.11n)	802.11b, 802.11g, Wi-Fi 4 (802.11n)
Ethernet LAN	Yes	Yes
BluetoothKnown for one	Unknown — not stated by the source	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	2.1+EDR
Top Wi-Fi standardKnown for one	Wi-Fi 4 (802.11n)	Unknown — not stated by the source
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Ports & interfaces3 differ
Ethernet LAN (RJ-45) ports	1	1
USB 2.0 ports quantityDiffers	4	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
HDMI ports quantityDiffers	0	1
DVI portDiffers	No	Yes
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantityKnown for one	0	Unknown — not stated by the source
Firewire (IEEE 1394) portsKnown for one	0	Unknown — not stated by the source
PS/2 ports quantityKnown for one	0	Unknown — not stated by the source
Serial ports quantityKnown for one	0	Unknown — not stated by the source
Designidentical
Product colour	Black	Black
Performanceidentical
Motherboard chipset	Intel® H61	Intel® H61
Softwareidentical
Operating system installed	Windows 7 Home Premium	Windows 7 Home Premium
Operating system architecture	64-bit	64-bit
Processor special features10 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	No
Intel Dual Display Capable Technology	Yes	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	Yes	Yes
Intel Fast Memory Access	Yes	Yes
Intel Flex Memory Access	Yes	Yes
Intel Identity Protection Technology versionKnown for one	Unknown — not stated by the source	1.00
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	No
Intel Trusted Execution TechnologyDiffers	No	Yes
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)Differs	No	Yes
Intel® AES New Instructions (Intel® AES-NI)Differs	No	Yes
Intel® Anti-Theft Technology (Intel® AT)Known for one	Unknown — not stated by the source	No
Intel® Clear Video HD Technology (Intel® CVT HD)Differs	No	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)Known for one	Unknown — not stated by the source	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
Intel® Identity Protection Technology (Intel® IPT)Known for one	Unknown — not stated by the source	Yes
Intel® InTru™ 3D TechnologyDiffers	No	Yes
Intel® Insider™Differs	No	Yes
Intel® My WiFi Technology (Intel® MWT)Known for one	Unknown — not stated by the source	No
Intel® Quick Sync Video TechnologyDiffers	No	Yes
Intel® Turbo Boost TechnologyDiffers	No	2.0
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	53490	52208
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction setsDiffers	SSE4.1, SSE4.2	AVX
Thermal Monitoring Technologies	Yes	Yes
Weight & dimensions3 differ
Width (with stand)Differs	525 mm	565 mm
Depth (with stand)Differs	65 mm	58 mm
Height (with stand)Differs	378 mm	435 mm
Other features3 differ
Graphics card family	NVIDIA	NVIDIA
Chassis type	All-in-One	All-in-One
Display included	Yes	Yes
Megapixel (approx.)Known for one	Unknown — not stated by the source	1.3 MP
Networking featuresDiffers	Gigabit Ethernet, WLAN	Gigabit Ethernet
Power supplyDiffers	150 W	180 W
SpeakersDiffers	monitor built-in	Yes
TV tuner integratedKnown for one	Unknown — not stated by the source	Yes
TV tuner typeKnown for one	Unknown — not stated by the source	Analog, DVB-T
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Compliance industry standardsKnown for one	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab	Unknown — not stated by the source
Mac compatibilityKnown for one	No	Unknown — not stated by the source
Number of processors installedKnown for one	1	Unknown — not stated by the source
Parallel ports quantityKnown for one	0	Unknown — not stated by the source
PlatformKnown for one	PC	Unknown — not stated by the source
Packaging contentidentical
Mouse includedKnown for one	Yes	Unknown — not stated by the source
Keyboard includedKnown for one	Yes	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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