Product comparison · 2 pcs/workstations

Lenovo ThinkCentre M57p Intel® Core™2 Duo E8400 vs Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK

82specifications compared
26differ
56identical
18known for one product only

Key differences

The Lenovo ThinkCentre M57p Intel® Core™2 Duo E8400 has 1.2 GHz more processor frequency than the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK (3 GHz vs 1.8 GHz). The Lenovo ThinkCentre M57p Intel® Core™2 Duo E8400 has 4 MB more processor cache than the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK (6 MB vs 2 MB). The Lenovo ThinkCentre M57p Intel® Core™2 Duo E8400 has 533 MHz more processor front side bus than the Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK (1333 MHz vs 800 MHz). Only the Lenovo ThinkCentre M57p Intel® Core™2 Duo E8400 has Intel Trusted Execution Technology. Only the Lenovo ThinkCentre M57p Intel® Core™2 Duo E8400 has Intel Virtualization Technology (VT-x).

Processor model
- ThinkCentre M57p Intel® Core™2 Duo E8400:E8400
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:E4300
Processor frequency
- ThinkCentre M57p Intel® Core™2 Duo E8400:3 GHz
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:1.8 GHz
Processor cache
- ThinkCentre M57p Intel® Core™2 Duo E8400:6 MB
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:2 MB
Processor front side bus
- ThinkCentre M57p Intel® Core™2 Duo E8400:1333 MHz
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:800 MHz
Processor lithography
- ThinkCentre M57p Intel® Core™2 Duo E8400:45 nm
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:65 nm
Processor codename
- ThinkCentre M57p Intel® Core™2 Duo E8400:Wolfdale
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:Conroe
Tcase
- ThinkCentre M57p Intel® Core™2 Duo E8400:72.4 °C
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:61.4 °C
Number of Processing Die Transistors
- ThinkCentre M57p Intel® Core™2 Duo E8400:410 M
- ThinkCentre M55e Small Desktop (9645-Q1G), UK:167 M

Side by side

Differences highlightedShow differences only

Comparison of M57p, ThinkCentre M55e Small Desktop (9645-Q1G), UK
100 specifications	A Lenovo ThinkCentre M57p Intel® Core™2 Duo E8400 Model M57p View product	B Lenovo ThinkCentre M55e Small Desktop (9645-Q1G), UK View product
Processor10 differ
Processor manufacturer	Intel	Intel
Processor family	Intel® Core™2 Duo	Intel® Core™2 Duo
Processor modelDiffers	E8400	E4300
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	3 GHz	1.8 GHz
Processor cacheDiffers	6 MB	2 MB
Processor cache type	L2	L2
Processor front side busDiffers	1333 MHz	800 MHz
Bus type	FSB	FSB
FSB Parity	No	No
Processor lithographyDiffers	45 nm	65 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Core 2 Duo E8000 Series	Intel Core 2 Duo E4000 Series
Processor codenameDiffers	Wolfdale	Conroe
Thermal Design Power (TDP)	65 W	65 W
TcaseDiffers	72.4 °C	61.4 °C
Processor socket	LGA 775 (Socket T)	LGA 775 (Socket T)
Number of Processing Die TransistorsDiffers	410 M	167 M
Processing Die sizeDiffers	107 mm²	111 mm²
CPU multiplier (bus/core ratio)	9	9
SteppingKnown for one	E0	Unknown — not stated by the source
ECC supported by processor	No	No
Scenario Design Power (SDP)Known for one	Unknown — not stated by the source	12 W
Number of processors installedKnown for one	Unknown — not stated by the source	1
Processor core voltage (AC)Known for one	Unknown — not stated by the source	1.225 - 1.325 V
Memory2 differ
Internal memoryDiffers	2 GB	1 GB
Maximum internal memoryDiffers	8 GB	4 GB
Internal memory type	DDR2-SDRAM	DDR2-SDRAM
Memory layout (slots x size)Known for one	2 x 1 GB	Unknown — not stated by the source
Memory clock speedKnown for one	667 MHz	Unknown — not stated by the source
Storage2 differ
Total storage capacityDiffers	320 GB	80 GB
Optical drive typeDiffers	DVD±RW	DVD-ROM
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integratedKnown for one	No	Unknown — not stated by the source
Graphics1 differ
Discrete graphics card modelDiffers	Intel® GMA X3000	Intel® GMA 3000
On-board graphics card modelKnown for one	Not available	Unknown — not stated by the source
Performanceidentical
Product type	PC	PC
Networkidentical
Networking features	Gigabit Ethernet	Gigabit Ethernet
Ports & interfacesidentical
USB 2.0 ports quantity	8	8
Ethernet LAN (RJ-45) ports	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantity	1	1
PS/2 ports quantity	2	2
Serial ports quantity	1	1
Parallel ports quantity	1	1
Power1 differ
Power supplyDiffers	280 W	225 W
Power supply input voltageKnown for one	110 - 220 V	Unknown — not stated by the source
Power supply input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Design1 differ
Chassis typeDiffers	Tower	Small Desktop
Cable lock slotKnown for one	Unknown — not stated by the source	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	IBM
Softwareidentical
Operating system installed	Windows XP Professional	Windows XP Professional
Bundled softwareKnown for one	Unknown — not stated by the source	Yes
Displayidentical
Display included	No	No
Processor special features4 differ
Embedded options available	Yes	Yes
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Graphics & IMC lithographyKnown for one	45 nm	Unknown — not stated by the source
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based Switching	No	No
Intel Dual Display Capable Technology	No	No
Intel Enhanced Halt State	Yes	Yes
Intel FDI Technology	No	No
Intel Fast Memory Access	No	No
Intel Flex Memory Access	No	No
Intel Rapid Storage Technology	No	No
Intel Trusted Execution TechnologyDiffers	Yes	No
Intel VT-x with Extended Page Tables (EPT)	No	No
Intel Virtualization Technology (VT-x)Differs	Yes	No
Intel Virtualization Technology for Directed I/O (VT-d)Differs	Yes	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)	No	No
Intel® InTru™ 3D Technology	No	No
Intel® Insider™	No	No
Intel® Wireless Display (Intel® WiDi)	No	No
Processor ARK IDDiffers	33910	28024
Processor codeKnown for one	SLB9J	Unknown — not stated by the source
Processor package size	37.5 x 37.5 mm	37.5 x 37.5 mm
Thermal Monitoring Technologies	Yes	Yes
Intel® Turbo Boost Technology	No	No
Intel® Hyper Threading Technology (Intel® HT Technology)	No	No
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
Audio1 differ
Audio systemDiffers	AD1882	ADI 1986 A
Weight & dimensions4 differ
WidthDiffers	175 mm	310 mm
DepthDiffers	440 mm	358 mm
HeightDiffers	402 mm	87.5 mm
WeightDiffers	10.2 kg	8.5 kg
Other featuresidentical
Intel segment tagging	Enterprise, Professional	Enterprise, Professional
HDD user passwordKnown for one	Unknown — not stated by the source	Yes
Expansion slotsidentical
Expansion slotsKnown for one	Unknown — not stated by the source	1x PCI 1x PCI Express 1x PCI
Packaging contentidentical
Mouse 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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