UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

July 21, 2009

Date of Report (Date of earliest event reported)

ADVANCED MICRO DEVICES, INC.

(Exact name of registrant as specified in its charter)

One AMD Place

P.O. Box 3453

Sunnyvale, California 94088-3453

(Address of principal executive offices) (Zip Code)

(408) 749-4000

(Registrant’s telephone number, including area code)

N/A

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Item 2.02 Results of Operations and Financial Condition.

Item 7.01 Regulation FD Disclosure.

The information in this Report, including Exhibit 99.1 attached hereto, is furnished pursuant to Item 2.02 and Item 7.01 of this Form 8-K. Consequently, it is not deemed “filed” for the purposes of Section 18 of the Securities and Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically references this Form 8-K.

On July 21, 2009, Advanced Micro Devices, Inc. (the “Company”) announced its financial position and results of operations as of and for its fiscal quarter ended June 27, 2009 in a press release that is attached hereto as Exhibit 99.1. To supplement the Company’s financial results presented on a U.S. GAAP basis, the Company’s earnings release contains non-GAAP financial measures of non-GAAP net income (loss) attributable to AMD common stockholders, non-GAAP operating income (loss),
non-GAAP gross margin and adjusted EBITDA. The Company believes this non-GAAP presentation makes it easier for investors to compare current and historical period operating results.

On March 2, 2009, the Company, Advanced Technology Investment Company LLC and West Coast Hitech G.P., Ltd. entered into a manufacturing joint venture pursuant to which GLOBALFOUNDRIES Inc., an exempted company incorporated under the laws of the Cayman Islands (“GF”), was created to manufacture semiconductor products and provide certain foundry services to the Company. Although GF is not a majority owned subsidiary of the Company, the Company is required to consolidate the operations of GF for financial reporting purposes. The Company has provided non-GAAP financial measures for Advanced Micro Devices, Inc. on a stand-alone basis (referred to below as “AMD Product Company”) by excluding from the Company’s consolidated operating results the Company’s Foundry segment and intersegment eliminations consisting of revenues, cost of sales, and profits on inventory between AMD Product Company and the Foundry segment. The Company is providing non-GAAP financial measures for AMD Product Company because the Company believes it is important for investors to have visibility into the Company’s financial results excluding the Foundry segment and to better understand the Company’s financial results absent the requirement to consolidate the financial results of GF.

To derive non-GAAP net income (loss) attributable to AMD common stockholders for the Company for the second fiscal quarter of 2009, the Company excluded the gross margin benefit from the sale of inventory written-down in the fourth fiscal quarter of 2008, the amortization of acquired intangible assets, certain restructuring charges, and the gain recognized by the Company from the repurchase of debt. To derive non-GAAP net income (loss) for AMD Product Company for the second fiscal quarter of 2009, the Company further excluded the net loss from the Foundry segment and the intersegment eliminations referenced above, the impact of net (income) loss attributable to noncontrolling interest and the Class B preferred accretion. To derive non-GAAP net loss attributable to AMD common stockholders for the Company for the first fiscal quarter of 2009, the Company excluded the gross margin benefit from the sale of inventory written-down in the fourth fiscal quarter of 2008, the amortization of acquired intangible assets, certain restructuring charges, GF formation costs incurred by AMD Product

Company, investment net charges, the gain recognized by the Company from the repurchase of debt, the gain on sale of certain Handheld assets and the tax provision related to GF. To derive non-GAAP net income (loss) for AMD Product Company for the first fiscal quarter of 2009, the Company further excluded the net loss from the Foundry segment and the intersegment eliminations referenced above, added back the tax provision related to GF and excluded the impact of net (income) loss attributable to noncontrolling interest and the Class B preferred accretion. To derive the Company’s non-GAAP net income (loss) attributable to AMD common stockholders for the Company for the second fiscal quarter of 2008, the Company excluded loss from discontinued operations, the amortization of acquired intangible assets, impairment of goodwill and acquired intangible assets related to the Company’s acquisition of ATI Technologies, Inc. (“ATI”), certain restructuring charges, the gain on sale of 200 millimeter equipment and investment net charges.

To derive non-GAAP operating income (loss) for the Company for the second fiscal quarter of 2009, the Company excluded the gross margin benefit from the sale of inventory written-down in the fourth fiscal quarter of 2008, amortization of acquired intangible assets and certain restructuring charges. To derive non-GAAP operating income (loss) for AMD Product Company for the second fiscal quarter of 2009, the Company also excluded the loss from the Company’s Foundry segment and the intersegment eliminations referenced above. To derive non-GAAP operating income (loss) for the Company for the first fiscal quarter of 2009, the Company excluded the gross margin benefit from the sale of inventory written-down in the fourth fiscal quarter of 2008, amortization of acquired intangible assets, certain restructuring charges and GF formation costs incurred by AMD Product Company. To derive non-GAAP operating income (loss) for AMD Product Company for the first fiscal quarter of 2009, the Company also excluded the loss from the Company’s Foundry segment and the intersegment eliminations referenced above. To derive non-GAAP operating income (loss) for the Company for the second fiscal quarter of 2008, the Company excluded the amortization of acquired intangible assets, the impairment of goodwill and acquired intangible assets related to the ATI acquisition, certain restructuring charges and the gain on sale of 200 millimeter equipment.

To derive non-GAAP gross margin for the Company for the second fiscal quarter of 2009, the Company excluded the gross margin benefit from the sale of inventory written down in the fourth fiscal quarter of 2008. To derive non-GAAP gross margin for AMD Product Company for the second fiscal quarter of 2009, the Company also excluded the gross margin from the Company’s Foundry segment and the intersegment eliminations referenced above. To derive non-GAAP gross margin for the Company for the first fiscal quarter of 2009, the Company excluded the gross margin benefit from the sale of inventory written down in the fourth fiscal quarter of 2008. To derive non-GAAP gross margin for AMD Product Company for the first fiscal quarter of 2009, the Company also excluded the gross margin from the Company’s Foundry segment and the intersegment eliminations referenced above.

Specifically, these non-GAAP financial measures reflect adjustments based on the following:

Gross margin benefit from the sales of inventory written-down in the fourth fiscal quarter of 2008: In the fourth fiscal quarter of 2008, the Company recorded an incremental write-down of inventory of $227 million due to a weak economic outlook. In the first fiscal and

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second fiscal quarters of 2009, the Company sold a portion of this inventory. The Company believes that the exclusion of this activity enables investors to better evaluate its current operating performance compared with prior periods.

Amortization of acquired intangible assets: The Company incurred significant expenses in connection with the ATI acquisition, which it would not have otherwise incurred and which the Company believes are not indicative of ongoing performance. These expenses primarily consisted of the amortization expense of acquired intangible assets. The Company believes that the exclusion of the amortization of acquired intangible assets enables investors to better evaluate its current operating performance compared with prior periods.

Restructuring charges: The restructuring charges primarily relate to the restructuring plans implemented by the Company during the second and fourth fiscal quarters of 2008 to reduce its breakeven point. The restructuring charges for the restructuring plan implemented during the second fiscal quarter of 2008 represent primarily severance and costs related to the continuation of certain employee benefits and the costs related to the termination of a contract. For the second quarter of fiscal 2008, these restructuring charges totaled $31 million. The restructuring charges for the restructuring plan implemented during the fourth fiscal quarter of 2008 represent primarily severance and costs related to the continuation of certain employee benefits, contract or program termination costs, asset impairments and exit costs for facility site consolidations and closures. For the second fiscal quarter of 2009, these restructuring charges totaled $1 million, and for the first fiscal quarter of 2009, these restructuring charges totaled $60 million. The Company excluded the effect of this item from GAAP net income (loss) attributable to AMD common stockholders and GAAP operating income (loss) as it is not indicative of ongoing performance.

Investment net charges: The Company incurred material investment-related net impairment charges in the first fiscal quarter of 2009 and in the second fiscal quarter of 2008. The charge in the first fiscal quarter of 2009 primarily represents a charge related to the Company’s ownership interest in the Advanced Maskhouse Technology Center GmbH joint venture. The charge in the second fiscal quarter of 2008 primarily represents a $24 million charge related to the Company’s investment in Spansion Inc. and a $12 million charge related to the Company’s auction rate securities. The Company excluded the effect of this item from its GAAP net income (loss) attributable to AMD common stockholders as it is not indicative of ongoing operating performance.

Gain on debt buyback: During the second fiscal quarter of 2009, the Company repurchased $15 million of its 5.75% Convertible Senior Notes due 2012 resulting in a gain on the debt buyback of $6 million. During the first fiscal quarter of 2009, the Company repurchased $158 million of its 6.00% Convertible Senior Notes due 2015 resulting in a gain on the debt buyback of $108 million. The Company excluded this gain from GAAP net income (loss) attributable to AMD common stockholders for the first and second fiscal quarters of 2009, as it is not indicative of ongoing operating performance.

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Foundry Segment and related eliminations: The Company’s Foundry segment includes the operating results attributable to the front end wafer manufacturing operations and related activities as of the beginning of the first quarter of 2009, which includes the operating results of GF since March 2, 2009. Eliminations consist of intersegment eliminations of revenues, cost of sales, and profits on inventory between AMD Product Company and the Foundry segment. The Company excluded this item from GAAP net income (loss) attributable to AMD common stockholders, GAAP operating income (loss) and GAAP gross margin for AMD Product Company because the Company believes it is important for investors to have visibility into the Company’s financial results excluding the Foundry segment and intersegment eliminations and to better understand the Company’s financial results absent the requirement to consolidate the financial results of GF.

Net (income) loss attributable to noncontrolling interest and Class B preferred accretion: These two items relate to GF, whose operating results are included in the Company’s Foundry segment. The Net (income) loss attributable to noncontrolling interest represents the allocation of the operating results to the noncontrolling partner of GF whereas the Class B preferred accretion represents the guaranteed rate of return that the noncontrolling partner earns on its ownership of GF Class B preferred stock. The Company excluded these items from GAAP net income (loss) attributable to AMD common stockholders for AMD Product Company because the Company believes it is important for investors to have visibility into the Company’s financial results excluding the Foundry segment.

AMD Product Company GF formation costs: AMD Product Company incurred certain costs to form the GF manufacturing joint venture, which were excluded from GAAP net income (loss) attributable to AMD common stockholders and GAAP operating income (loss) for the first fiscal quarter of 2009, as these costs are not indicative of ongoing operating performance.

Gain on sale of Handheld assets: In the first fiscal quarter of 2009, the Company completed the sale of certain technology assets, intellectual property and resources of its Handheld business unit to Qualcomm for $65 million in cash. The Company excluded this gain from GAAP net income (loss) attributable to AMD common stockholders for the first fiscal quarter of 2009 as it is not indicative of ongoing operating performance.

Incremental tax provision related to formation of GF: During the first fiscal quarter of 2009, the Company recorded a tax provision related to GF from the write-off of deferred tax assets resulting from the formation of GF. The Company excluded this item from the Company’s GAAP net income (loss) attributable to AMD common stockholders because it is not indicative of ongoing operating performance.

Discontinued Operations: As part of the Company’s strategy of evaluating the viability of its non-core business, in the second fiscal quarter of 2008, the Company determined that its Handheld and DTV business units were not directly aligned with its computing and graphics

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opportunities. Therefore, the Company decided to divest these business units and classify them as discontinued operations in the financial statements presented. During the fourth fiscal quarter of 2008, the Company determined that the discontinued operation classification criteria for the Handheld business unit were no longer met. Accordingly, the results of the Handheld business unit were reclassified from discontinued operations to continuing operations, and prior periods were recast to conform to current period presentation. In the fourth fiscal quarter of 2008, AMD completed the sale of its DTV business unit to Broadcom Corporation for $141.5 million in cash. In the first fiscal quarter of 2009, AMD completed the sale of certain technology assets, intellectual property and resources of its Handheld business unit to Qualcomm for $65 million in cash. The loss from discontinued operations in fiscal second quarter of 2008 represented only the estimated loss from its DTV business unit. The Company excluded this item from the Company’s GAAP net income (loss) attributable to AMD common stockholders because it is not indicative of ongoing operating performance.

Impairment of goodwill and acquired intangible assets related to the Company’s acquisition of ATI: As a result of the Company’s decision in the second fiscal quarter of 2008 to divest its Handheld and DTV business units, the Company performed an interim goodwill impairment analysis and the analysis of impairment on acquired intangible assets associated with these business units. The Company concluded that a portion of their carrying values were impaired. The impairment charges associated with the DTV business units were recorded in the loss from discontinued operations and this item represented only the impairment charges associated with the Handheld business unit. The Company believes these charges are not indicative of ongoing performance and consequently excluded the effect of these charges from GAAP net income (loss) attributable to AMD common stockholders and GAAP operating income (loss) for the second fiscal quarter of 2008.

Gain on sale of 200 millimeter equipment: In the second fiscal quarter of 2008, the Company recognized a gain of $193 million in connection with sales of certain 200mm wafer fabrication tools. The Company excluded the effect of this item from GAAP net income (loss) attributable to AMD common stockholders and GAAP operating income (loss) for the second fiscal quarter of 2008 as it is not indicative of ongoing operating performance.

In addition, the Company presented “Adjusted EBITDA” in the financial schedules to the earnings release. In the financial schedules, Adjusted EBITDA for the Company was determined by adjusting net income (loss) attributable to AMD common stockholders for impairment of goodwill and acquired intangible assets, depreciation and amortization, amortization of acquired intangible assets, interest expense, taxes and discontinued operations. Adjusted EBITDA for AMD Product Company was determined by also adjusting for the Foundry segment and intersegment eliminations net loss, net income (loss) attributable to noncontrolling interest and Class B preferred accretion.

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Pursuant to the requirements of Regulation G, the Company has provided reconciliations within the press release and financial schedules of these non-GAAP financial measures to the most directly comparable U.S. GAAP financial measures.

The Company calculated and communicated Adjusted EBITDA in the financial schedules because the Company’s management believes it is of importance to investors and lenders in relation to its overall capital structure and its ability to borrow additional funds.

The Company’s calculation of Adjusted EBITDA may or may not be consistent with the calculation of this measure by other companies in the same industry. Investors should not view Adjusted EBITDA as an alternative to the U.S. GAAP operating measure of net loss or U.S. GAAP liquidity measures of cash flows from operating, investing and financing activities. In addition, Adjusted EBITDA does not take into account changes in certain assets and liabilities as well as interest and income taxes that can affect cash flows.

Management does not intend the presentation of these non-GAAP measures to be considered in isolation or as a substitute for results prepared in accordance with U.S. GAAP. These non-GAAP measures should be read only in conjunction with the Company’s consolidated financial statements prepared in accordance with U.S. GAAP.

Item 9.01 Financial Statements and Exhibits.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

INDEX TO EXHIBITS