APU meaning in Computer Hardware ?

The AMD Accelerated Processing Unit (APU), formerly known as Fusion, is the marketing term for a series of 64-bit microprocessors from Advanced Micro Devices (AMD), designed to act as a central processing unit (CPU) and graphics processing unit (GPU) on a single die. APUs are general purpose processors that feature integrated graphics processors (IGPs).

AMD announced the first generation APUs, Llano for high-performance and Brazos for low-power devices in January 2011. The second generation Trinity for high-performance and Brazos-2 for low-power devices were announced in June 2012. The third generation Kaveri for high performance devices were launched in January 2014, while Kabini and Temash for low-power devices were announced in the summer of 2013. Since the launch of the Zen microarchitecture, Ryzen and Athlon APU's have released to the global market as Raven Ridge on the DDR4 platform, after Bristol Ridge a year prior.

AMD also supplied semi-custom APU's for consoles starting with the release of Sony PlayStation 4 and Microsoft Xbox One eighth generation video game consoles.

Intel CPUs with integrated Intel Graphics Technology also have a CPU and GPU on a single die, but they do not offer HSA support.