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GIGABYTE Radeon HD 4770 (part number GV-R477D5-512H-B) is a desktop graphics processing unit, based on ATI Radeon HD 4770. The GPU, built on 40 nm technological process, boasts Unified Superscalar Shader architecture. The card has 750 MHz graphics clock frequency. It also has 640 stream processors, 16 color ROPs, together with 32 texture units. The Radeon HD 4770 embeds 512 MB of GDDR5 memory, using 128 bit bus. The memory is clocked at 800 MHz, which gives 51.2 GB/s memory bandwidth. The GPU supports PCI Express 2.0 interface, and uses 2 slots on the motherboard. The maximum power draw of this model is 80 Watt, same as on the reference design.
More detailed specifications of the GIGABYTE Radeon HD 4770 card are available below.