ATI Mobility Radeon HD4870 high-end graphics card
The DirectX 10.1 capable high-end graphics card is technically based on the ATI Mobility Radeon HD4870 desktop (RV770 chip) with lower clock speeds. It is technically efficient below an ATI Mobility Radeon HD4870 desktop. the RV770 chip made in 55nm process. In addition, the Radeon HD4870 over a 256 bit memory interface, 800 stream processors and gigabytes of GDDR5 video memory. ATI Mobility Radeon HD4870 is the successor of DirectX 11 ATI Mobility Radeon graphics card.
A special feature of Mobility Radeon HD4870 is integrated with HD audio chip for up to 7.1 AC3 audio (eg via HDMI). With a power consumption up to 65 watts it’s must be appropriately large notebooks (from 17 inches) and have a good cooling system.
ATI Mobility Radeon HD4870 Details
Memory clock: 888 MHz
Manufacturing Process: 55 nm
Memory Bandwidth: 256 bit
max memory size: 1024 MB
Series: Mobility Radeon HD 4000
Memory Type: GDDR5
Core clock: 550 MHz
Shader clock: 550 MHz