AUTHORIZATION LETTER

July 29, 2005



Securities and Exchange Commission

450 Fifth Street, N.W.

Washington, D.C.  20549

Attn: Filing Desk

To Whom It May Concern:

By means of this letter I authorize David M. Shannon, Marvin D. Burkett and Christine

Lillquist, or any of them individually, to sign on my behalf all forms required under

Section 16(a) of the Securities Exchange Act of 1934, as amended, relating to

transactions involving the stock or derivative securities of NVIDIA Corporation (the

"Company").  Any such individual is accordingly authorized to sign any Form 3, Form 4

or Form 5 or amendment thereto, that I am required to file with the same effect as if I had

signed them myself.

This authorization shall remain in effect until revoked in writing by me or until I am no

longer required to file such forms.

Yours truly,

A. Brooke Seawell