Earlier this week a rumor was spreading that AMD's graphics cards are not fully compatible with the upcoming DirectX 11.2 API but AMD dispelled this rumor by sending a message to members of the press that the Radeon HD 7000 series will be fully DirectX 11.2 capable after a driver update. This driver is expected to be released in October around the launch date of Windows 8.1.
“The Radeon HD 7000 series hardware architecture is fully DirectX 11.2-capable when used with a driver that enables this feature. AMD is planning to enable DirectX 11.2 with a driver update in the Windows 8.1 launch timeframe in October, when DirectX 11.2 ships. Today, AMD is the only GPU manufacturer to offer fully-compatible DirectX 11.1 support, and the only manufacturer to support Tiled Resources Tier-2 within a shipping product stack.”