Introduction (and a bit of history!) In this post I've done more testing with Ryzen 3900X looking at the effect of BLAS libraries on a simple but computationally demanding problem with Python numpy. The results may surprise you! I start with a little bit of history of Intel vs AMD performance to give you what may be a new perspective on the issue. More reality check with the AMD Zen2 Ryzen 3900X!
![AMD Ryzen 3900X vs Intel Xeon 2175W Python numpy - MKL vs OpenBLAS](https://cdn-ak-scissors.b.st-hatena.com/image/square/552e55d90f1258f622bd2223bce257be26ec18e1/height=288;version=1;width=512/https%3A%2F%2Fwww.pugetsystems.com%2Fwp-content%2Fuploads%2F2022%2F08%2FPuget-Systems-2020-logomark-color-500.png)