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ATI Mobility Radeon HD 3870 is a mobile Graphics Processing Unit, that uses Unified Superscalar Shader architecture and is manufactured on 55 nm technological process. The GPU was released in June 2008. The cards graphics frequency is 660 MHz. Furthermore, it has 320 stream processors, 16 color ROPs, together with 16 texture units. The Mobility Radeon HD 3870 comes with 512 MB of GDDR3 memory, utilizing 256 bit bus. The memory is clocked at 850 MHz, which gives 54.4 GB/s memory bandwidth. The GPU supports PCI Express 2.0 interface. The maximum power draw of this model is 55 Watt. To improve ATI Mobility Radeon HD 3870 3D graphics and game performance, it can be paired with another graphics card in crossfire mode.
Please see below for detailed specifications of the ATI Mobility Radeon HD 3870 graphics card.