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Diamond Multimedia Radeon HD 4550 (part number 4550PE3512HS) is one of a few Diamond Multimedia desktop graphics processing units, based on ATI Radeon HD 4550 GDDR3. The GPU, produced on 55 nm manufacturing process, employs Unified Superscalar Shader architecture. The card has 600 MHz graphics clock frequency. It also has 80 stream processors, 8 texture units, along with 4 color ROPs. The Radeon HD 4550 embeds 512 MB of GDDR3 memory, using 64 bit bus. The memory is clocked at 800 MHz, which translates to 12.8 GB/s memory bandwidth. The GPU supports PCI Express 2.0 interface, and requires a single motherboard slot. This model needs up to 25 Watt of power, same as on the reference design.
Please see below for detailed specifications of the Diamond Multimedia Radeon HD 4550 graphics card.