Nehalem EX

Product Collection	Processor Number	# of Cores	# of Threads	Base Frequency	Litho- graphy	Socket Supported	Spec Code	Step- ping	Ordering Code
Xeon E-Series	E6510	4	8	1.73 GHz		LGA-1567	SLBRL	D0	AT80604004896AA
Xeon E-Series	E6540	6	12	2.00 GHz	45 nm	LGA-1567	SLBRC	D0	AT80604001800AB
Xeon E-Series	E7520	4	8	1.87 GHz	45 nm	LGA-1567	SLBRK	D0	AT80604004887AA
Xeon E-Series	E7530	6	12	1.87 GHz	45 nm	LGA-1567	SLBRJ	D0	AT80604004884AA
Xeon E-Series	E7540	6	12	2.00 GHz	45 nm	LGA-1567	SLBRG	D0	AT80604004878AA
Xeon L-Series	L7545	6	12	1.87 GHz	45 nm	LGA-1567	SLBRH	D0	AT80604004881AA
Xeon L-Series	L7555	8	16	1.87 GHz	45 nm	LGA-1567	SLBRF	D0	AT80604004875AA
Xeon X-Series	X6550	8	16	2.00 GHz	45 nm	LGA-1567	SLBRB	D0	AT80604001797AB
Xeon X-Series	X7542	6	6	2.67 GHz	45 nm	LGA-1567	SLBRM	D0	AT80604005280AA
Xeon X-Series	X7550	8	16	2.00 GHz	45 nm	LGA-1567	SLBRE	D0	AT80604004872AA
Xeon X-Series	X7560	8	16	2.27 GHz	45 nm	LGA-1567	SLBRD	D0	AT80604004869AA