Product comparison · 2 pcs/workstations

Acer eMachines ET1840 vs Lenovo ThinkCentre M90 + L197w

91specifications compared
34differ
57identical
51known for one product only

Key differences

The Lenovo ThinkCentre M90 + L197w has 2 more processor threads than the Acer eMachines ET1840 (4 vs 2). The Acer eMachines ET1840 has 0.07 GHz more processor frequency than the Lenovo ThinkCentre M90 + L197w (3 GHz vs 2.93 GHz). The Lenovo ThinkCentre M90 + L197w has 2 MB more processor cache than the Acer eMachines ET1840 (4 MB vs 2 MB). Only the Acer eMachines ET1840 has card reader integrated. Only the Lenovo ThinkCentre M90 + L197w has DVI port.

Processor family
- eMachines ET1840:Intel® Pentium®
- ThinkCentre M90 + L197w:Intel® Core™ i3
Processor model
- eMachines ET1840:E5700
- ThinkCentre M90 + L197w:i3-530
Processor threads
- eMachines ET1840:2
- ThinkCentre M90 + L197w:4
Processor frequency
- eMachines ET1840:3 GHz
- ThinkCentre M90 + L197w:2.93 GHz
Processor cache
- eMachines ET1840:2 MB
- ThinkCentre M90 + L197w:4 MB
Bus type
- eMachines ET1840:FSB
- ThinkCentre M90 + L197w:DMI
Processor lithography
- eMachines ET1840:45 nm
- ThinkCentre M90 + L197w:32 nm
Processor codename
- eMachines ET1840:Wolfdale
- ThinkCentre M90 + L197w:Clarkdale

Side by side

Differences highlightedShow differences only

Comparison of eMachines ET1840, ThinkCentre M90 + L197w
142 specifications	A Acer eMachines ET1840 View product	B Lenovo ThinkCentre M90 + L197w View product
Processor16 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium®	Intel® Core™ i3
Processor generationKnown for one	Unknown — not stated by the source	Intel® Core™ i3
Processor modelDiffers	E5700	i3-530
Processor cores	2	2
Processor threadsDiffers	2	4
Processor frequencyDiffers	3 GHz	2.93 GHz
Processor cacheDiffers	2 MB	4 MB
Processor cache type	Smart Cache	Smart Cache
Bus typeDiffers	FSB	DMI
FSB Parity	No	No
System bus rateKnown for one	Unknown — not stated by the source	2.5 GT/s
Processor lithographyDiffers	45 nm	32 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Pentium E5000 Series for Desktop	Intel Core i3-500 Desktop Series
Processor codenameDiffers	Wolfdale	Clarkdale
Thermal Design Power (TDP)Differs	65 W	73 W
TcaseDiffers	74.1 °C	72.6 °C
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	16
PCI Express configurationsKnown for one	Unknown — not stated by the source	1x16, 2x8
PCI Express slots versionKnown for one	Unknown — not stated by the source	2.0
Number of processors installed	1	1
Processor socketDiffers	LGA 775 (Socket T)	LGA 1156 (Socket H)
Number of Processing Die TransistorsDiffers	228 M	382 M
Processing Die sizeDiffers	82 mm²	81 mm²
CPU multiplier (bus/core ratio)Differs	15	22
PlatformKnown for one	Unknown — not stated by the source	PC
SteppingDiffers	R0	C2
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	16 GB
Memory types supported by processorKnown for one	Unknown — not stated by the source	DDR3 1066/1333
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	21 GB/s
ECC supported by processor	No	No
Processor front side busKnown for one	800 MHz	Unknown — not stated by the source
Maximum number of SMP processorsKnown for one	1	Unknown — not stated by the source
Memory2 differ
Internal memory	2 GB	2 GB
Maximum internal memory	4 GB	4 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR3-SDRAM
Memory slotsDiffers	2x DIMM	2x SO-DIMM
Memory clock speedKnown for one	Unknown — not stated by the source	1333 MHz
Memory channelsKnown for one	Unknown — not stated by the source	Dual-channel
Storage1 differ
Card reader integratedDiffers	Yes	No
Floppy drive installed	No	No
Total storage capacityKnown for one	500 GB	Unknown — not stated by the source
Optical drive typeKnown for one	DVD Super Multi DL	Unknown — not stated by the source
HDD interfaceKnown for one	SATA	Unknown — not stated by the source
Graphicsidentical
On-board graphics card	Yes	Yes
On-board graphics card familyKnown for one	Unknown — not stated by the source	Intel® HD Graphics
On-board graphics card modelKnown for one	Unknown — not stated by the source	Intel® HD Graphics
Number of displays supported (on-board graphics)Known for one	Unknown — not stated by the source	2
On-board graphics card base frequencyKnown for one	Unknown — not stated by the source	733 MHz
Discrete graphics card modelKnown for one	Intel® GMA 3100	Unknown — not stated by the source
Graphics card familyKnown for one	Intel	Unknown — not stated by the source
Performanceidentical
Product type	PC	PC
Audio output channelsKnown for one	7.1 channels	Unknown — not stated by the source
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Cabling technology	10/100/1000Base-T(X)	10/100/1000BASE-T(X)
Wi-Fi	No	No
Networking features	Gigabit Ethernet	Gigabit Ethernet
Wake-on-LAN readyKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces3 differ
USB 2.0 ports quantityDiffers	6	10
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	0	0
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
HDMI ports quantity	0	0
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
DVI portDiffers	No	Yes
PS/2 ports quantityDiffers	2	0
Firewire (IEEE 1394) ports	0	0
Serial ports quantity	0	0
Parallel ports quantity	0	0
Expansion slotsidentical
PCI slotsKnown for one	Unknown — not stated by the source	1
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 supply type	AC	AC
Power supplyDiffers	220 W	130 W
Power requirementsKnown for one	100 - 240 V	Unknown — not stated by the source
Designidentical
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Product colour	Black	Black
External drive baysKnown for one	Unknown — not stated by the source	1 x 5.25''
Internal drive baysKnown for one	Unknown — not stated by the source	1 x 3.5''
Chassis typeKnown for one	Micro Tower	Unknown — not stated by the source
Softwareidentical
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 7 Professional (32-bit) Windows 7 Professional (64-bit) Windows 7 Home Premium (32-bit) Windows 7 Home Basic (32-bit) Windows Vista Business (32-bit) Windows Vista Home Basic (32-bit)
Mac compatibilityKnown for one	Unknown — not stated by the source	No
Operating system installedKnown for one	Windows 7 Home Premium	Unknown — not stated by the source
Display1 differ
Display includedDiffers	No	Yes
Display diagonalKnown for one	Unknown — not stated by the source	48.3 cm (19")
Display resolutionKnown for one	Unknown — not stated by the source	1440 x 900 pixels
Native aspect ratioKnown for one	Unknown — not stated by the source	16:10
Contrast ratio (typical)Known for one	Unknown — not stated by the source	1000:1
TouchscreenKnown for one	Unknown — not stated by the source	No
Display brightnessKnown for one	Unknown — not stated by the source	250 cd/m²
DisplayKnown for one	Unknown — not stated by the source	LCD
Processor special features7 differ
CPU configuration (max)	1	1
Embedded options available	No	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	45 nm
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable TechnologyDiffers	No	Yes
Intel Enhanced Halt State	Yes	Yes
Intel FDI TechnologyDiffers	No	Yes
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Rapid Storage Technology	No	No
Intel Trusted Execution Technology	No	No
Intel VT-x with Extended Page Tables (EPT)Differs	No	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)Differs	No	Yes
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)	No	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® Wireless Display (Intel® WiDi)	No	No
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	36 bit
Processor ARK IDDiffers	42801	46472
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.2
Thermal Monitoring TechnologiesDiffers	Yes	No
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	No	Yes
Intel® Quick Sync Video Technology	No	No
Intel® My WiFi Technology (Intel® MWT)	No	No
Intel® Anti-Theft Technology (Intel® AT)	No	No
Conflict-Free processor	No	No
Weight & dimensions3 differ
WidthDiffers	180 mm	79 mm
DepthDiffers	441 mm	238 mm
HeightDiffers	361 mm	275 mm
WeightKnown for one	13 kg	Unknown — not stated by the source
Packaging contentidentical
Remote control included	No	No
Certificatesidentical
Compliance industry standards	IEEE802.3, IEEE802.3u, IEEE802.3ab	IEEE802.3, IEEE802.3u, IEEE802.3ab
CertificationKnown for one	CE, CB, FCC	Unknown — not stated by the source
Other featuresidentical
TV tuner integrated	No	No
Intel segment taggingKnown for one	Unknown — not stated by the source	Enterprise, Professional
Audioidentical
Audio systemKnown for one	High Definition Audio	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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