Tech stocks burst into an afternoon rally, only to fall back down again by the end of the day. The Nasdaq declined 0.4% to close at 1711. Google ( GOOG) shares enjoyed a lift after investors rewarded it for a strong third quarter performance, aided by cost containment and a healthy growth of revenue through paid search ads. The stock jumped 5.5% to close at $372.54. Advanced Micro Devices ( AMD) also saw its shares climb after reporting a narrower-than-expected loss and strong growth in sales across all product lines in the third quarter. The stock was up 2.2% to $4.21. Electronic Arts ( ERTS) got a boost after research firm NPD Group reported a 44% sell-through of its video games, in contrast to a 6% decline for the industry. Shares of Electronic Arts finished the day up 8.4% to $29.79. Shares of PMC-Sierra ( PMCS) plunged 14.3% to close at $4.79 after it provided a disappointing fourth-quarter outlook. The company expects revenues of $125 million to $135 million, far short of Wall Street estimates of $143.8 million. Symantec ( SYMC) shares jumped 4.1% to $15.28 , benefiting from a rating upgrade from Friedman Billings Ramsey to outperform from market perform. The firm maintained that Symantec should see a continuation in strong demand despite a tough economy.