Product comparison · 2 cpus

Dell Xeon E5540 vs Dell Xeon L5609

Key differences

Differences highlightedShow differences only

Comparison of Xeon E5540, Xeon L5609
50 specifications	A Dell Xeon E5540 View product	B Dell Xeon L5609 View product
Processor10 differ
Processor modelDiffers	E5540	L5609
Processor base frequencyDiffers	2.53 GHz	1.86 GHz
Processor lithographyDiffers	45 nm	32 nm
Processor threadsDiffers	8	4
System bus rateDiffers	5.86 GT/s	4.8 GT/s
Processor boost frequencyKnown for one	2.8 GHz	Unknown — not stated by the source
Processor cacheDiffers	8 MB	12 MB
L3 cache speedKnown for one	2.53 GHz	Unknown — not stated by the source
Thermal Design Power (TDP)Differs	80 W	40 W
VID Voltage RangeDiffers	0.75 - 1.35 V	0.750 - 1.350 V
SteppingDiffers	D0	B1
CPU multiplier (bus/core ratio)Differs	19	14
Memory1 differ
Maximum internal memory supported by processorDiffers	144 GB	288 GB
Features1 differ
Number of Processing Die TransistorsKnown for one	731 M	Unknown — not stated by the source
Processing Die sizeKnown for one	263 mm²	Unknown — not stated by the source
Embedded options availableDiffers	Yes	No
Thermal Monitoring TechnologiesKnown for one	Unknown — not stated by the source	No
Supported instruction setsKnown for one	Unknown — not stated by the source	SSE4.2
Processor special features3 differ
Intel Trusted Execution TechnologyDiffers	No	Yes
Intel® Hyper Threading Technology (Intel® HT Technology)Differs	Yes	No
Intel® Turbo Boost TechnologyDiffers	Yes	No
Intel® AES New Instructions (Intel® AES-NI)Known for one	Unknown — not stated by the source	Yes
Operational conditions1 differ
TcaseDiffers	76 °C	63.1 °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.