Which one of the central processing units is better: AMD Phenom II X2 521 or AMD Ryzen Threadripper 1900X? On this page we compare the technical data and benchmark results of different CPUs.
The AMD Phenom II X2 521 has 2 cores and 2 threads with maximum working frequency of No turbo. The AMD Phenom II X2 521 was released on Q2/2011.
The AMD Ryzen Threadripper 1900X has 8 cores with 2 threads and No turbo of frequency. The AMD Ryzen Threadripper 1900X was released on Q3/2017.