ATI Radeon HD 4870 X2 core, code-named R700, adopted two RV770XT graphics, the PCB version, code-named Spartan, No. B509, the core clock has not yet set, built-in 16 32 M x 32 GDDR5 memory particles, a total of 512 Bit, 2GB (256Bit, 1GB x 2), priced only $ 499 U.S. dollars, AMD disclosed to the VGA industry, Radeon HD 4870 X2 will be able to easily overwhelm NVIDIA GeForce GTX 280.

改進上代PCI-e Bridge 晶片不支援PCI-Express 2.0 問題，令產品被Downgrade 至PCI-Express 1.0a ，新一代ATI Radeon HD 4870 x2 已採用全新PCI-e Bridge 晶片，正式支援PCI-Express 2.0 。 Improved behalf PCI-e Bridge chip does not support PCI-Express 2.0 problems, the products are Downgrade to PCI-Express 1.0a, a new generation of ATI Radeon HD 4870 x2 have adopted the new PCI-e Bridge chip, official support for PCI-Express 2.0.

據台灣繪圖業者表示， AMD 將會於7 月15 日提供首片Radeon HD 4870 X2 公版樣本作內部測試，預計7 月24 日完成硬件合格品質測試後， 7 月第四週向業者提供量產品作出貨之用。 According to Taiwan's graphics industry said, AMD will be on July 15 to provide first-Radeon HD 4870 X2 version of the samples for internal testing and is expected July 24 to complete hardware qualified quality tests, the fourth week in July to the provision of products industry A cargo use.