Segment Information (Tables)

6 Months Ended

Jul. 27, 2014

Notes to financial statements [Abstract]

Financial Information by Operating Segment

	GPU		Tegra Processor			All Other			Consolidated
	(In thousands)
Three Months Ended July 27, 2014
Revenue	$	877,980	$	158,844		$	66,000		$	1,102,824
Depreciation and amortization expense	$	29,493	$	14,562		$	11,552		$	55,607
Operating income (loss)	$	240,908	$	(54,542	)	$	(23,187	)	$	163,179
Three Months Ended July 28, 2013
Revenue	$	858,613	$	52,625		$	66,000		$	977,238
Depreciation and amortization expense	$	36,001	$	15,431		$	10,408		$	61,840
Operating income (loss)	$	207,914	$	(83,560	)	$	(18,820	)	$	105,534
Six Months Ended July 27, 2014
Revenue	$	1,775,343	$	298,268		$	132,000		$	2,205,611
Depreciation and amortization expense	$	59,017	$	28,730		$	22,943		$	110,690
Operating income (loss)	$	476,104	$	(115,981	)	$	(45,585	)	$	314,538
Six Months Ended July 28, 2013
Revenue	$	1,644,225	$	155,752		$	132,000		$	1,931,977
Depreciation and amortization expense	$	71,919	$	28,953		$	20,712		$	121,584
Operating income (loss)	$	366,440	$	(138,550	)	$	(39,575	)	$	188,315

Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block]

	Three Months Ended						Six Months Ended
	July 27, 2014			July 28, 2013			July 27, 2014			July 28, 2013
	(In thousands)
Reconciling items included in "All Other" category :
Revenue not allocated to reporting segments	$	66,000		$	66,000		$	132,000		$	132,000
Unallocated corporate operating expenses	(41,599		)	(41,171		)	(85,035		)	(85,668		)
Stock-based compensation	(38,415		)	(32,395		)	(73,936		)	(65,792		)
Acquisition-related costs	(9,173		)	(8,964		)	(18,614		)	(17,825		)
Other non-recurring expenses	—			(2,290		)	—			(2,290		)
Total	$	(23,187	)	$	(18,820	)	$	(45,585	)	$	(39,575	)

Revenue from customers based in different geographic regions

	Three Months Ended				Six Months Ended
	July 27,		July 28,		July 27,		July 28,
	2014		2013		2014		2013
	(In thousands)
Revenue:
Taiwan	$	330,917	$	319,004	$	703,776	$	608,885
China	251,768		184,086		475,230		359,130
United States	206,128		163,796		379,063		349,774
Other Asia Pacific	150,799		165,117		305,649		332,374
Other Americas	83,055		76,531		174,818		141,538
Europe	80,157		68,704		167,075		140,276
Total revenue	$	1,102,824	$	977,238	$	2,205,611	$	1,931,977

Revenue from significant customers,10% or more of total revenue [Table Text Block]

Revenue from significant customers, those representing 10% or more of total revenue for the respective dates, is summarized as follows:

	Three Months Ended				Six Months Ended
	July 27,		July 28,		July 27,		July 28,
	2014		2013		2014		2013
Revenue:
Customer A	11	%	11	%	10	%	11	%
Customer B	10	%	12	%	9	%	11	%

Revenue from Customer A was attributable primarily to the GPU business for the three and six months ended July 27, 2014 and to both the GPU and Tegra Processor businesses for the three and six months ended July 28, 2013. Revenue from Customer B was attributable to the GPU business for all comparative periods presented.

Accounts receivable from significant customers, 10% or more of total A/R [Table Text Block]

Accounts receivable from significant customers, those representing 10% or more of total accounts receivable for the respective periods, is summarized as follows: 

	July 27, 2014		January 26, 2014
Accounts Receivable:
Customer B	21	%	23	%
Customer C	10	%	9	%