Product comparison · 2 cpus

Dell Xeon E5640 vs HP Intel Xeon L3406

34specifications compared
16differ
18identical
18known for one product only

Key differences

Processor family
- Xeon E5640:Intel® Xeon® 5000 Sequence
- Intel Xeon L3406:Intel® Xeon® 3000 Sequence
Processor model
- Xeon E5640:E5640
- Intel Xeon L3406:L3406
Processor base frequency
- Xeon E5640:2.66 GHz
- Intel Xeon L3406:2.26 GHz
Processor cores
- Xeon E5640:4
- Intel Xeon L3406:2
Processor socket
- Xeon E5640:Socket B (LGA 1366)
- Intel Xeon L3406:LGA 1156 (Socket H)
Processor threads
- Xeon E5640:8
- Intel Xeon L3406:4
System bus rate
- Xeon E5640:5.86 GT/s
- Intel Xeon L3406:2.5 GT/s
Processor boost frequency
- Xeon E5640:2.93 GHz
- Intel Xeon L3406:2.53 GHz

Side by side

Differences highlightedShow differences only

Comparison of Xeon E5640, Intel Xeon L3406
52 specifications	A Dell Xeon E5640 View product	B HP Intel Xeon L3406 View product
Processor13 differ
Processor familyDiffers	Intel® Xeon® 5000 Sequence	Intel® Xeon® 3000 Sequence
Processor modelDiffers	E5640	L3406
Processor base frequencyDiffers	2.66 GHz	2.26 GHz
Processor coresDiffers	4	2
Processor socketDiffers	Socket B (LGA 1366)	LGA 1156 (Socket H)
Processor threadsDiffers	8	4
System bus rateDiffers	5.86 GT/s	2.5 GT/s
Processor boost frequencyDiffers	2.93 GHz	2.53 GHz
Processor cacheDiffers	12 MB	4 MB
Thermal Design Power (TDP)Differs	80 W	30 W
VID Voltage RangeDiffers	0.75 - 1.35 V	0.65 - 1.4 V
Bus typeDiffers	QPI	DMI
Memory bandwidth supported by processor (max)Differs	25.6 GB/s	17 GB/s
Number of QPI linksKnown for one	2	Unknown — not stated by the source
Memory2 differ
Memory clock speeds supported by processorDiffers	800,1066 MHz	1066 MHz
Memory channelsDiffers	Triple-channel	Dual-channel
Maximum internal memory supported by processorKnown for one	288 GB	Unknown — not stated by the source
Featuresidentical
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	No
Maximum number of PCI Express lanesKnown for one	Unknown — not stated by the source	1
PCI Express slots versionKnown for one	Unknown — not stated by the source	2.0
PCI Express configurationsKnown for one	Unknown — not stated by the source	1x16, 2x8
Number of Processing Die TransistorsKnown for one	Unknown — not stated by the source	382 M
Processing Die sizeKnown for one	Unknown — not stated by the source	81 mm²
Number of Graphics & IMC Die TransistorsKnown for one	Unknown — not stated by the source	177 M
Graphics & IMC Die SizeKnown for one	Unknown — not stated by the source	114 mm²
Embedded options availableKnown for one	Unknown — not stated by the source	No
Graphics & IMC lithographyKnown for one	Unknown — not stated by the source	45 nm
Supported instruction setsKnown for one	AES, SSE4.2	Unknown — not stated by the source
CPU configuration (max)Known for one	2	Unknown — not stated by the source
Processor special featuresidentical
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	No
Intel® Smart CacheKnown for one	Unknown — not stated by the source	Yes
Intel VT-x with Extended Page Tables (EPT)Known for one	Unknown — not stated by the source	Yes
Intel® vPro™ Platform EligibilityKnown for one	Unknown — not stated by the source	No
Operational conditions1 differ
TcaseDiffers	77.6 °C	53.9 °C

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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