Hi there. Considering a day to day PC usage as 98% browsing and watching movies, are there any valid reasons to upgrade from an older CPU like let's say second gen Core processors like Sandy Bridge or Ivy Bridge or AMD Phenom II / FX to newer ones? Will Windows use some specially optimized instructions present on the CPUs like AVX or AVX2 ? Or just using an older CP should be enough. Hardware acceleration in video players, is that still a thing? Aren't cpus powerful enough to provide the necessary horsepower even if that hardware acceleration is not available?