Product comparison · 2 cpus

HP AMD Phenom II P820 vs Lenovo Intel Xeon E5649

10specifications compared
10differ
0identical
12known for one product only

Key differences

Processor family
- AMD Phenom II P820:AMD Phenom II
- Intel Xeon E5649:Intel® Xeon® 5000 Sequence
Processor model
- AMD Phenom II P820:P820
- Intel Xeon E5649:E5649
Processor base frequency
- AMD Phenom II P820:1.8 GHz
- Intel Xeon E5649:2.53 GHz
Processor cores
- AMD Phenom II P820:3
- Intel Xeon E5649:6
Processor socket
- AMD Phenom II P820:Socket S1
- Intel Xeon E5649:Socket B (LGA 1366)
Processor lithography
- AMD Phenom II P820:45 nm
- Intel Xeon E5649:32 nm
Processor operating modes
- AMD Phenom II P820:32-bit, 64-bit
- Intel Xeon E5649:64-bit
Processor cache
- AMD Phenom II P820:1.5 MB
- Intel Xeon E5649:12 MB

Side by side

Differences highlightedShow differences only

Comparison of AMD Phenom II P820, Intel Xeon E5649
22 specifications	A HP AMD Phenom II P820 View product	B Lenovo Intel Xeon E5649 View product
Processor10 differ
Processor familyDiffers	AMD Phenom II	Intel® Xeon® 5000 Sequence
Processor modelDiffers	P820	E5649
Processor base frequencyDiffers	1.8 GHz	2.53 GHz
Processor coresDiffers	3	6
Processor socketDiffers	Socket S1	Socket B (LGA 1366)
Processor lithographyDiffers	45 nm	32 nm
Component forKnown for one	Unknown — not stated by the source	Server/workstation
Processor threadsKnown for one	Unknown — not stated by the source	12
System bus rateKnown for one	Unknown — not stated by the source	5.86 GT/s
Processor operating modesDiffers	32-bit, 64-bit	64-bit
Processor cacheDiffers	1.5 MB	12 MB
Processor cache typeDiffers	L2	L3
Processor front side busKnown for one	Unknown — not stated by the source	1333 MHz
Thermal Design Power (TDP)Differs	25 W	80 W
VID Voltage RangeKnown for one	Unknown — not stated by the source	0.750 - 1.350 V
SteppingKnown for one	Unknown — not stated by the source	B1
CPU multiplier (bus/core ratio)Known for one	Unknown — not stated by the source	19
Processor codeKnown for one	Unknown — not stated by the source	SLBZ8
Featuresidentical
Market segmentKnown for one	Unknown — not stated by the source	Server
BandwidthKnown for one	Unknown — not stated by the source	26214.4 MB/s
Operational conditionsidentical
Maximum operating temperatureKnown for one	Unknown — not stated by the source	76.2 °C
Processor special featuresidentical
AMD Virtualization TechnologyKnown 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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