I upgraded AMD Athlon II X4 640 with AMD FX-8300. FX-8300 costs ~81 US dollars at this point in my region.
According to CPU benchmark, FX-8300 is about 2.3 times as fast as X4 640.
According to my youtube video test, it is actually ~2.3 times as fast as X4 640.
With X4 640, 1080p60fps videos consumed 40~70% of CPU resources on youtube.
With FX-8300, 1080p60fps videos consume 15~24% of CPU resources on youtube.
This is a satisfactory result for 81 US dollars.
According to CPU benchmark, FX-8300 is about 2.3 times as fast as X4 640.
According to my youtube video test, it is actually ~2.3 times as fast as X4 640.
With X4 640, 1080p60fps videos consumed 40~70% of CPU resources on youtube.
With FX-8300, 1080p60fps videos consume 15~24% of CPU resources on youtube.
This is a satisfactory result for 81 US dollars.