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Diamond Multimedia Radeon HD 3870 (part number 3870PE31G) Graphics Processing Unit for desktop market segment is based on ATI Radeon HD 3870. The GPU is fabricated on 55 nm manufacturing process. The card has 825 MHz graphics clock frequency. Furthermore, it has 320 stream processors, 16 color ROPs, along with 16 texture units. The Radeon HD 3870 embeds 1 GB of GDDR3 memory. Since the memory operates at 900 MHz, and uses 256 bit bus, the effective memory bandwidth is 57.6 GB/s. The GPU supports PCI Express 2.0 interface, and requires 2 motherboard slots. The maximum power consumption of this model is 106 Watt, same as on the reference design.
More detailed specifications of the Diamond Multimedia Radeon HD 3870 card are available below.