Oh, it's not only that you have "i5" CPUs spanning many years of iterations and different cores. You sometimes even have i5-<4digit> CPUs with a suffix: There's

Oh, it's not only that you have "i5" CPUs spanning many years of iterations and different cores. You sometimes even have i5-<4digit> CPUs with a suffix: There's at least 3 versions of a i5-3470 (no suffix, S or T suffix). Then there's the branding as Pentium or Celeron...