Product comparison · 2 pcs/workstations

HP Compaq dc7900 MT vs Lenovo ThinkStation S20 (410527G)

82specifications compared
44differ
38identical
50known for one product only

Key differences

The HP Compaq dc7900 MT has 0.74 GHz more processor frequency than the Lenovo ThinkStation S20 (410527G) (2.6 GHz vs 1.86 GHz). The Lenovo ThinkStation S20 (410527G) has 2 MB more processor cache than the HP Compaq dc7900 MT (4 MB vs 2 MB). The Lenovo ThinkStation S20 (410527G) has 15 W more thermal Design Power (TDP) than the HP Compaq dc7900 MT (80 W vs 65 W). Only the Lenovo ThinkStation S20 (410527G) has ECC supported by processor. Only the HP Compaq dc7900 MT has display included.

Processor family
- Compaq dc7900 MT:Intel® Pentium®
- ThinkStation S20 (410527G):Intel® Xeon® 5000 Sequence
Processor model
- Compaq dc7900 MT:E5300
- ThinkStation S20 (410527G):E5502
Processor frequency
- Compaq dc7900 MT:2.6 GHz
- ThinkStation S20 (410527G):1.86 GHz
Processor cache
- Compaq dc7900 MT:2 MB
- ThinkStation S20 (410527G):4 MB
Processor cache type
- Compaq dc7900 MT:L2
- ThinkStation S20 (410527G):Smart Cache
Bus type
- Compaq dc7900 MT:FSB
- ThinkStation S20 (410527G):QPI
Processor codename
- Compaq dc7900 MT:Wolfdale
- ThinkStation S20 (410527G):Nehalem EP
Thermal Design Power (TDP)
- Compaq dc7900 MT:65 W
- ThinkStation S20 (410527G):80 W

Side by side

Differences highlightedShow differences only

Comparison of Compaq dc7900 MT, ThinkStation S20 (410527G)
132 specifications	A HP Compaq dc7900 MT View product	B Lenovo ThinkStation S20 (410527G)View product
Processor14 differ
Processor manufacturer	Intel	Intel
Processor familyDiffers	Intel® Pentium®	Intel® Xeon® 5000 Sequence
Processor modelDiffers	E5300	E5502
Processor cores	2	2
Processor threads	2	2
Processor frequencyDiffers	2.6 GHz	1.86 GHz
Processor cacheDiffers	2 MB	4 MB
Processor cache typeDiffers	L2	Smart Cache
Processor front side busKnown for one	800 MHz	Unknown — not stated by the source
Bus typeDiffers	FSB	QPI
FSB Parity	No	No
Processor lithography	45 nm	45 nm
Processor operating modes	64-bit	64-bit
Processor seriesDiffers	Intel Pentium E5000 Series for Desktop	Intel Xeon 5500 Series
Processor codenameDiffers	Wolfdale	Nehalem EP
Thermal Design Power (TDP)Differs	65 W	80 W
TcaseDiffers	74.1 °C	76 °C
Processor socketDiffers	LGA 775 (Socket T)	Socket B (LGA 1366)
Number of Processing Die TransistorsKnown for one	228 M	Unknown — not stated by the source
Processing Die sizeKnown for one	82 mm²	Unknown — not stated by the source
CPU multiplier (bus/core ratio)Differs	13	14
SteppingDiffers	R0	D0
ECC supported by processorDiffers	No	Yes
System bus rateKnown for one	Unknown — not stated by the source	4.8 GT/s
Processor system typeKnown for one	Unknown — not stated by the source	DP
Number of QPI linksKnown for one	Unknown — not stated by the source	2
Maximum internal memory supported by processorKnown for one	Unknown — not stated by the source	144 GB
Memory types supported by processorKnown for one	Unknown — not stated by the source	DDR3-SDRAM
Memory clock speeds supported by processorKnown for one	Unknown — not stated by the source	800 MHz
Memory bandwidth supported by processor (max)Known for one	Unknown — not stated by the source	19.2 GB/s
Memory5 differ
Internal memoryDiffers	3 GB	2 GB
Maximum internal memoryDiffers	16 GB	12 GB
Internal memory typeDiffers	DDR2-SDRAM	DDR3-SDRAM
Memory layout (slots x size)Differs	3 x 1 GB	2 x 1 GB
Memory clock speedDiffers	800 MHz	1066 MHz
Memory channelsKnown for one	Unknown — not stated by the source	Triple-channel
Storage1 differ
Total storage capacityKnown for one	250 GB	Unknown — not stated by the source
Optical drive typeDiffers	DVD Super Multi	DVD-RW
HDD interface	SATA	SATA
HDD speed	7200 RPM	7200 RPM
Card reader integrated	Yes	Yes
Floppy drive installedKnown for one	No	Unknown — not stated by the source
Storage drive controllerKnown for one	SATA 3.0Gb/s	Unknown — not stated by the source
HDD capacityKnown for one	Unknown — not stated by the source	250 GB
Compatible memory cardsKnown for one	Unknown — not stated by the source	CF, MMC, SD, xD
Graphicsidentical
On-board graphics cardKnown for one	Yes	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Intel® GMA 4500M	Unknown — not stated by the source
Video adapter, busKnown for one	PCI Express x16	Unknown — not stated by the source
Graphics cardKnown for one	Unknown — not stated by the source	Quadro FX 380
Performance1 differ
Product typeDiffers	PC	Workstation
Optical driveidentical
LightScribeKnown for one	Yes	Unknown — not stated by the source
CD read speedKnown for one	Unknown — not stated by the source	40x
Networkidentical
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Wi-FiKnown for one	No	Unknown — not stated by the source
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Ports & interfaces5 differ
USB 2.0 ports quantityDiffers	8	10
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsDiffers	1	2
Headphone outputs	1	1
Microphone in	Yes	Yes
VGA (D-Sub) ports quantityDiffers	1	0
DVI portKnown for one	No	Unknown — not stated by the source
PS/2 ports quantityDiffers	2	0
Firewire (IEEE 1394) portsDiffers	0	2
Serial ports quantity	1	1
Parallel ports quantity	0	0
Line-inKnown for one	Unknown — not stated by the source	Yes
eSATA ports quantityKnown for one	Unknown — not stated by the source	1
Expansion slotsidentical
PCI Express x1 slotsKnown for one	2	Unknown — not stated by the source
PCI Express x16 slots	1	1
PCI slotsKnown for one	Unknown — not stated by the source	2
Power1 differ
Power supplyDiffers	365 W	625 W
Power supply input voltageKnown for one	100 - 240 V	Unknown — not stated by the source
Power supply input frequencyKnown for one	50 - 60 Hz	Unknown — not stated by the source
Power requirementsKnown for one	Unknown — not stated by the source	100-240V; 50/60Hz
Design1 differ
Chassis typeDiffers	Mini Tower	Tower
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
Cable lock slot typeKnown for one	Kensington	Unknown — not stated by the source
External drive baysKnown for one	3 x 5.25", 1 x 3.5"	Unknown — not stated by the source
Country of originKnown for one	China	Unknown — not stated by the source
Software1 differ
Operating system installedDiffers	Windows Vista Business	Windows XP Professional
Optional operating system suppliedKnown for one	Windows XP Professional	Unknown — not stated by the source
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows XP Pro SP1a/SP2a 32/64-bit Red Hat Enterprise Linux 5.0 Windows Vista 32/64-bit Windows Vista Enterprise 32/64-bit Windows Vista Ultimate 32/64-bit
Display1 differ
Display includedDiffers	Yes	No
Processor special features9 differ
CPU configuration (max)Differs	1	2
Embedded options availableDiffers	Yes	No
Enhanced Intel SpeedStep Technology	Yes	Yes
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Intel 64	Yes	Yes
Intel Clear Video Technology	No	No
Intel Demand Based SwitchingDiffers	No	Yes
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 Technology	No	No
Intel VT-x with Extended Page Tables (EPT)Differs	No	Yes
Intel Virtualization Technology (VT-x)Differs	2	Yes
Intel Virtualization Technology for Directed I/O (VT-d)Differs	No	Yes
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	35300	37092
Processor codeDiffers	SLB9U	SLBEZ
Thermal Monitoring TechnologiesDiffers	Yes	No
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
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Physical Address Extension (PAE)Known for one	Unknown — not stated by the source	Yes
Processor package sizeKnown for one	Unknown — not stated by the source	42.5 x 45 mm
Audio1 differ
Audio systemDiffers	HDA	ADI 1988 A
Operational conditionsidentical
Storage temperature (T-T)Known for one	-30 - 60 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	10 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 95%	Unknown — not stated by the source
Weight & dimensions4 differ
WidthDiffers	177 mm	175 mm
DepthDiffers	452 mm	460 mm
HeightDiffers	447 mm	478 mm
WeightDiffers	11.8 kg	16.3 kg
Packaging contentidentical
Remote control includedKnown for one	No	Unknown — not stated by the source
Mouse includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
TV tuner integratedKnown for one	No	Unknown — not stated by the source
Keyboardidentical
Keyboard typeKnown for one	Unknown — not stated by the source	Preferred Pro USB

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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