Product comparison · 2 pcs/workstations

HP 820 Intel® Xeon® E5 Family E5-2643 vs Lenovo S20 + LS2421p

95specifications compared
48differ
47identical
67known for one product only

Key differences

Processor family
- 820 Intel® Xeon® E5 Family E5-2643:Intel® Xeon® E5 Family
- S20 + LS2421p:Intel® Xeon® 3000 Sequence
Processor model
- 820 Intel® Xeon® E5 Family E5-2643:E5-2643
- S20 + LS2421p:W3565
Processor boost frequency
- 820 Intel® Xeon® E5 Family E5-2643:3.5 GHz
- S20 + LS2421p:3.46 GHz
Processor frequency
- 820 Intel® Xeon® E5 Family E5-2643:3.3 GHz
- S20 + LS2421p:3.2 GHz
Processor cache
- 820 Intel® Xeon® E5 Family E5-2643:10 MB
- S20 + LS2421p:8 MB
System bus rate
- 820 Intel® Xeon® E5 Family E5-2643:8 GT/s
- S20 + LS2421p:4.8 GT/s
Processor lithography
- 820 Intel® Xeon® E5 Family E5-2643:32 nm
- S20 + LS2421p:45 nm
Processor series
- 820 Intel® Xeon® E5 Family E5-2643:Intel Xeon E5-2600
- S20 + LS2421p:Intel Xeon 3500 Series

Side by side

Differences highlightedShow differences only

Comparison of 820, S20 + LS2421p
162 specifications	A HP 820 Intel® Xeon® E5 Family E5-2643 Model 820 View product	B Lenovo S20 + LS2421p View product
Processor17 differ
Processor familyDiffers	Intel® Xeon® E5 Family	Intel® Xeon® 3000 Sequence
Processor modelDiffers	E5-2643	W3565
Processor boost frequencyDiffers	3.5 GHz	3.46 GHz
Processor frequencyDiffers	3.3 GHz	3.2 GHz
Processor cacheDiffers	10 MB	8 MB
System bus rateDiffers	8 GT/s	4.8 GT/s
Processor lithographyDiffers	32 nm	45 nm
Processor seriesDiffers	Intel Xeon E5-2600	Intel Xeon 3500 Series
Processor codenameDiffers	Sandy Bridge EP	Bloomfield
TcaseKnown for one	73 °C	Unknown — not stated by the source
Maximum number of PCI Express lanesKnown for one	40	Unknown — not stated by the source
PCI Express configurationsKnown for one	x4, x8, x16	Unknown — not stated by the source
PCI Express slots versionKnown for one	3.0	Unknown — not stated by the source
Number of QPI linksDiffers	2	1
Number of processors installedDiffers	2	1
Processor socketDiffers	LGA 2011 (Socket R)	Socket B (LGA 1366)
CPU multiplier (bus/core ratio)Differs	35	24
SteppingDiffers	M1	D0
Maximum internal memory supported by processorDiffers	750 GB	24 GB
Memory clock speeds supported by processorDiffers	800,1066,1333,1600 MHz	800,1066 MHz
Memory bandwidth supported by processor (max)Differs	51.2 GB/s	25.6 GB/s
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
Memory5 differ
Internal memoryDiffers	32 GB	6 GB
Maximum internal memoryDiffers	512 GB	12 GB
Memory slotsDiffers	16x DIMM	6x DIMM
Memory clock speedDiffers	1600 MHz	1333 MHz
Memory channelsDiffers	Quad-channel	Triple-channel
Memory layout (slots x size)Known for one	Unknown — not stated by the source	3 x 2 GB
Storage3 differ
Total storage capacityKnown for one	1 TB	Unknown — not stated by the source
Optical drive typeDiffers	DVD Super Multi	DVD-RW
Storage mediaKnown for one	HDD	Unknown — not stated by the source
Total HDDs capacityKnown for one	1 TB	Unknown — not stated by the source
Number of HDDs installedDiffers	1	2
HDD capacityDiffers	1 TB	500 GB
Card reader integratedKnown for one	Yes	Unknown — not stated by the source
Compatible memory cardsKnown for one	MMC, SD, SDXC, SDHC	Unknown — not stated by the source
RAID supportKnown for one	Unknown — not stated by the source	Yes
RAID levelsKnown for one	Unknown — not stated by the source	0, 1, 5
Graphicsidentical
On-board graphics cardKnown for one	No	Unknown — not stated by the source
Discrete graphics card modelKnown for one	Not available	Unknown — not stated by the source
On-board graphics card modelKnown for one	Not available	Unknown — not stated by the source
Performance1 differ
Motherboard chipsetDiffers	Intel® C602	Intel® X58 Express
Optical driveidentical
Optical drives quantityKnown for one	1	Unknown — not stated by the source
LightScribeKnown for one	No	Unknown — not stated by the source
Networkidentical
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
Wi-FiKnown for one	No	Unknown — not stated by the source
Wi-Fi standardsKnown for one	Not supported	Unknown — not stated by the source
Networking featuresKnown for one	Unknown — not stated by the source	Gigabit Ethernet (10/100/1000)
Ports & interfaces4 differ
USB 2.0 ports quantityDiffers	5	10
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	4	0
HDMI ports quantityKnown for one	0	Unknown — not stated by the source
Ethernet LAN (RJ-45) portsDiffers	2	1
Combo headphone/mic portKnown for one	No	Unknown — not stated by the source
Line-outKnown for one	Yes	Unknown — not stated by the source
Line-inKnown for one	Yes	Unknown — not stated by the source
DVI portKnown for one	No	Unknown — not stated by the source
PS/2 ports quantityDiffers	2	0
Firewire (IEEE 1394) portsKnown for one	2	Unknown — not stated by the source
S/PDIF out portKnown for one	No	Unknown — not stated by the source
DC-in jackKnown for one	No	Unknown — not stated by the source
SmartCard slotKnown for one	No	Unknown — not stated by the source
eSATA ports quantityKnown for one	Unknown — not stated by the source	1
Parallel ports quantityKnown for one	Unknown — not stated by the source	0
Expansion slotsidentical
PCI Express x4 (Gen 2.x) slotsKnown for one	1	Unknown — not stated by the source
PCI Express x4 (Gen 3.x) slotsKnown for one	1	Unknown — not stated by the source
PCI Express x8 (Gen 3.x) slotsKnown for one	1	Unknown — not stated by the source
PCI Express x16 (Gen 3.x) slotsKnown for one	3	Unknown — not stated by the source
PCI Express x1 slotsKnown for one	Unknown — not stated by the source	1
PCI Express x4 slotsKnown for one	Unknown — not stated by the source	1
PCI Express x16 slotsKnown for one	Unknown — not stated by the source	2
Power1 differ
Power supplyDiffers	1125 W	625 W
Power supply input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
Power supply input frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
Design2 differ
Chassis typeDiffers	Mini Tower	Tower
Number of 5.25" baysDiffers	3	2
Country of originKnown for one	China	Unknown — not stated by the source
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
Display1 differ
Display includedDiffers	No	Yes
Display diagonalKnown for one	Unknown — not stated by the source	59.9 cm (23.6")
Display number of coloursKnown for one	Unknown — not stated by the source	16.78 million colours
DisplayKnown for one	Unknown — not stated by the source	LCD
ResolutionKnown for one	Unknown — not stated by the source	1920 x 1080 pixels
Processor special features10 differ
CPU configuration (max)Differs	2	1
Graphics & IMC lithographyKnown for one	32 nm	Unknown — not stated by the source
Intel Identity Protection Technology versionKnown for one	0.00	Unknown — not stated by the source
Intel Secure Key Technology versionKnown for one	1.00	Unknown — not stated by the source
Intel TSX-NI versionKnown for one	0.00	Unknown — not stated by the source
Intel Trusted Execution TechnologyDiffers	Yes	No
Intel Virtualization Technology for Directed I/O (VT-d)Differs	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Differs	Yes	No
Intel® Secure KeyKnown for one	Yes	Unknown — not stated by the source
Intel® Small Business Advantage (Intel® SBA)Known for one	No	Unknown — not stated by the source
Physical Address Extension (PAE)Differs	46 bit	Yes
Processor ARK IDDiffers	64587	39721
Processor package sizeDiffers	52.5 x 45.0 mm	42.5 x 45.0 mm
ScalabilityKnown for one	2S	Unknown — not stated by the source
Supported instruction setsDiffers	AVX	SSE4.2
Thermal Monitoring TechnologiesDiffers	Yes	No
Intel® Smart Response TechnologyKnown for one	No	Unknown — not stated by the source
Intel® Turbo Boost TechnologyDiffers	2.0	1.0
Intel® Identity Protection Technology (Intel® IPT)Known for one	No	Unknown — not stated by the source
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Processor codeKnown for one	Unknown — not stated by the source	SLBEV
Weight & dimensions4 differ
WidthDiffers	203 mm	175 mm
DepthDiffers	525 mm	460 mm
HeightDiffers	444 mm	478 mm
WeightDiffers	19.5 kg	14.5 kg
Packaging contentidentical
Mouse includedKnown for one	Yes	Unknown — not stated by the source
Keyboard includedKnown for one	Yes	Unknown — not stated by the source
AC adapter includedKnown for one	No	Unknown — not stated by the source
Audioidentical
Audio systemKnown for one	Unknown — not stated by the source	HD
Certificatesidentical
Compliance industry standardsKnown for one	Unknown — not stated by the source	IEEE 802.3, IEEE 802.3u, IEEE 802.3ab

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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