Rambus Reports Second Quarter Earnings

Revenue of $35.7 million; loss of $1.38 per share includes a deferred tax asset valuation allowance of $1.25 loss per share

Los Altos, California, United States  - July 24, 2008   – Rambus Inc. (NASDAQ:RMBS), one of the world’s premier technology licensing companies specializing in high-speed memory architectures, today reported financial results for the second quarter of 2008. Revenues for the second quarter of 2008 were $35.7 million, down 10.1% sequentially from the first quarter and down 24.9% over the second quarter of last year. Revenues for the six months ended June 30, 2008 were $75.5 million, down 22.8% over the same period of last year.

“Despite the obvious headwinds faced in the quarter, we remain committed to a strategy that focuses on long-term success,” said Harold Hughes, president and chief executive officer at Rambus. “We will continue to invest in technology development and fully fund our legal efforts. Nevertheless, we intend to reduce our current cost structure through actions which may include downsizing our workforce in order to maintain the financial strength of the company. In doing so, we will continue to support our customers and ensure we follow through on the commitments made to them.”

Total costs and expenses for the second quarter of 2008 were $52.6 million, which included $9.0 million of stock-based compensation expenses and $2.3 million for the previous stock-based compensation restatement and related legal expenses. This is compared to total costs and expenses of $63.0 million for the first quarter of 2008, which included $10.5 million of stock-based compensation expenses and $0.9 million of restatement and related legal expenses. General litigation expenses for the second quarter of 2008 were $9.1 million, a decrease of $4.1 million from the first quarter of 2008. As compared to the second quarter of last year, total costs and expenses decreased from $57.7 million, which included $10.3 million of stock-based compensation expenses and $7.5 million of restatement and related legal expenses. General litigation expenses in the second quarter of 2008 increased $2.4 million from the second quarter of 2007.

Total costs and expenses for the six months ended June 30, 2008 were $115.6 million, which included $19.5 million of stock-based compensation expenses and $3.2 million for the previous stock-based compensation restatement and related legal expenses. This is compared to total costs and expenses of $119.3 million for the same period of 2007, which included $19.7 million of stock-based compensation expenses and $14.5 million of restatement and related legal expenses. General litigation expenses for the six months ended June 30, 2008 were $22.3 million, an increase of $10.6 million from the same period in 2007.

During the second quarter of 2008, the Company recorded a valuation allowance of $130.5 million against its net deferred tax assets to fully reserve previously recorded tax benefits generated from its pre-tax losses in the U.S. Pursuant to the Statement of Financial Accounting Standard 109: Accounting for Income Taxes, the Company determined this valuation allowance is required due to significant negative evidence, such as cumulative losses in recent years and projected losses from operations. Projected income from settlements or litigation was not included in the determination for the valuation allowance. The valuation allowance will be maintained until sufficient positive evidence exists to support its reversal.

Net loss for the second quarter of 2008 of $144.7 million compares to a net loss of $12.6 million in the first quarter of 2008 and a net loss of $2.7 million in the second quarter of 2007. Net loss per share for the second quarter of 2008 was $1.38 as compared to a net loss per share of $0.12 in the first quarter of 2008 and a net loss per share of $0.03 for the second quarter of 2007. Net loss for the six months ended June 30, 2008 was $157.3 million as compared to a net loss of $6.6 million for the same period of 2007. Net loss per share for the six months ended June 30, 2008 was $1.50 as compared to a net loss per share of $0.06 in the same period of 2007.

Cash, cash equivalents and marketable securities as of June 30, 2008 were $394.2 million, down approximately $46.7 million from December 31, 2007 and up approximately $12.2 million from March 31, 2008. During the first quarter of 2008, the Company repurchased approximately 1.4 million shares of common stock for an aggregate value of $24.9 million and paid $18.3 million for the settlement of a class action suit. In April 2008, the Company also received $5.0 million of insurance proceeds related to reimbursement claims associated with the stock option investigation claims.

The conference call discussing second quarter results will be webcast live via the Rambus Investor Relations website (http://investor.rambus.com) at 2:00 p.m. Pacific Time today. A replay will be available following the call on Rambus’ Investor Relations website and for one week at the following numbers: (888) 203-1112 (domestic) or (719) 457-0820 (international) with ID# 8040394.

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About Rambus Inc.

Rambus is one of the world’s premier technology licensing companies specializing in the invention and design of high-speed memory architectures. Additional information is available at www.rambus.com.