Hardware of Nokia N900

The Nokia N900 is powered by a high-end OMAP 3430 ARM Cortex A8 which is a System-on-a-chip made by Texas Instruments based on a 65-nanometer CMOS process. The OMAP 3430 is composed of three microprocessors; the Cortex A8 running at 600 MHz used to run the OS and applications, the PowerVR SGX 530 GPU made by Imagination Technologies which supports OpenGL ES 2.0 and is capable of up to 14 MPolys/s and a TMS320C64x, the digital signal processors, running at 430 MHz used to run the image processing (camera), audio processing (telephony) and data transmission. The TMS320 C64x main purpose is to offload the Cortex A8 from having to process audio and video signal.[31] Moreover the OMAP 3430 on some N900 devices has been successfully over-clocked upto 1150Mhz by using a modified kernel and editing the kernel power configuration file.[32] The system has 256 MB of dedicated high performance RAM (Mobile DDR) paired with access to 768 MB swap space managed by the OS.[2] This provides a total of 1 GB of virtual memory.


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