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Diamond Multimedia Radeon HD 4870 (part number 4870PE51GDI) is a desktop graphics processing unit, based on ATI Radeon HD 4870 GDDR5. The GPU, fabricated on 55 nm manufacturing process, sports Unified Superscalar Shader architecture. The card has graphics clocked at 750 MHz. It also has 800 stream processors, 40 texture units, as well as 16 color ROPs. The Radeon HD 4870 embeds 1 GB of GDDR5 memory. Because the memory runs at 900 MHz, and utilizes 256 bit bus, the effective memory bandwidth is 115.2 GB/s. The GPU supports PCI Express 2.0 interface, and needs 2 slots on the motherboard. This model requires up to 130 Watt of power, same as on the reference design.
More detailed specifications of the Diamond Multimedia Radeon HD 4870 graphics card are available below.