What is CUDA core and what and where are its advantages?

CUDA stands for the "Compute Unified Device Architecture", which is a free software platform provided by NVIDIA. It enables users to control GPUs by writing programs akin to C++. All CUDA softwares can be downloaded from CUDA Zone.

CUDA Cores are parallel processors, just like our CPU might be a dual- or quad-core device, nVidia GPUs host several hundred or thousand cores. The cores are responsible for processing all the data that is fed into and out of the GPU, performing game graphics calculations that are resolved visually to the end-user.

CUDA brings together several things: Massively parallel hardware designed to run generic (non-graphic) code

A  CUDA (Compute Unified Device Architecture)  core is nVidia's equivalent to AMD streams processors. NVidia's proprietary parallel computer programming model, CUDA is a specialized programming language that can leverage the GPU in specific ways to perform tasks with greater performance.

It is a development tool chain for crating programs that can run on NVidia's GPU, as well as API for controlling such programs for CPU.

Massively parallel hardware design to run generic (non-generic) code with appropriate drivers for doing so.

A programming language based on C for programming said hardware and an assembly language that other programming language can use as a target.

A SDK that include libraries , varies debugging, profile and compiling tools, and building the let CPU-side programming languages invoke GPU -side code.

CUDA Cores are parallel processors, just like your CPU might be a dual- or quad-core device.