CPUのコア数が増えると性能も向上するのか？（ゆっくり解説）

In recent years, the number of CPU cores has been steadily increasing, but I would like to verify whether performance actually increases with the number of cores. One of the challenges with multithreading is that no matter how many cores or threads there are, if the program is not designed for parallel processing, it will be no different from a single-core system. I will use several benchmarks to verify whether increasing the number of cores will result in a tenfold increase in performance, or whether it will remain unchanged. *The CPU used in this video is the 16-core, 32-thread Ryzen 9 3950X, but results may differ for Intel and Threadripper processors due to differences in CPU structure. Please understand that this video is merely an experiment. I may also create videos in the future that include Intel versions and versions with intermediate core counts (6 or 12 cores). *The photo in the upper right corner of the thumbnail is an internet meme that satirizes multithreading. 0:27 Multi-core Explained 2:31 Test Environment Introduction 3:29 Setup 4:56 Benchmark 7:21 Discussion 9:05 Parallel Processing Explained (Amdahl's Law) 11:51 Bonus (Current PC Parts) 13:26 Conclusion Recommended Videos Is the Old CPU "Phenom II X6" Still Usable?    • 古いCPU「Phenom II X6」は今でも使い物になるのか？   Testing the Performance of the 2013 High-End GPU "GeForce GTX 780"! (Yukkuri Commentary)    • 2013年のハイエンドGPU「GeForce GTX 780」の実力をテスト！（ゆっ...   [Minecraft] Authentic Japanese-Style Architecture! (Yukkuri Village Remodeling Plan Part 45)    • 【Minecraft】本格的和風建築！（ゆっくり達の村改造計画 Part45）   #Yukkuri #CustomPC