Fastest cpu secs Python 3 versus Go Always look at the source code. If the fastest programs are hand-written vector instructions, does the host language matter? You might be more interested in the less optimised programs — more cpu seconds, less gz source code. fannkuch-redux source mem gz cpu Go #3 2,260 969 32.88 Go 2,956 900 47.36 Go #2 11,316 896 47.56 Python 3 #6 7,432 385 1,279.15 Python 3 #4 45,420 950 1,336.72 n-body source mem gz cpu Go #3 1,136 1200 6.38 Go 1,136 1310 6.58 Go #2 1,132 1215 6.94 Python 3 7,756 1196 575.02 Python 3 #2 8,244 1242 592.71 spectral-norm source mem gz cpu Go 2,452 411 5.33 Go #4 1,952 548 5.67 Go #2 1,420 668 5.68 Python 3 #6 9,332 328 436.79 Python 3 #8 48,336 407 472.82 Python 3 #7 48,400 417 494.32 mandelbrot source mem gz cpu Go #4 33,812 905 14.85 Go #3 34,028 894 14.91 Go 32,600 823 19.58 Go #2 33,196 837 27.07 Go #6 32,764 700 27.25 Python 3 #7 46,192 688 706.10 Python 3 #5 Failed Python 3 #2 Timed Out pidigits source mem gz cpu Go #4 8,732 683 0.87 Python 3 #3 11,968 567 1.13 Go #3 9,320 603 1.18 Go 9,496 708 1.21 Go #2 9,032 733 1.59 Go #8 9,924 720 2.54 Python 3 #4 8,668 342 4.06 Go #7 8,620 696 5.05 Python 3 #2 Bad Output regex-redux source mem gz cpu Python 3 #2 111,680 1403 2.66 Go #5 306,476 810 5.97 Python 3 458,264 512 17.86 Go #4 355,844 829 34.99 Go #3 358,472 829 67.28 Go 297,048 741 68.45 fasta source mem gz cpu Go 1,112 1053 3.64 Go #2 10,980 1404 3.84 Go #3 3,168 1358 3.98 Python 3 #2 8,184 1121 60.26 Python 3 #3 8,112 1003 60.50 Python 3 8,040 817 70.54 Python 3 #5 837,684 1947 71.74 k-nucleotide source mem gz cpu Go #7 159,432 1607 28.49 Go #6 149,712 1590 29.40 Go #4 144,528 1543 30.22 Go #3 149,984 1722 30.25 Python 3 #3 252,668 1967 172.53 Python 3 351,092 607 240.16 Python 3 #8 473,988 655 242.16 reverse-complement source mem gz cpu Go #2 826,796 611 1.94 Go #3 826,544 605 2.13 Go #5 1,483,756 996 2.26 Go #6 1,289,572 1338 2.48 Python 3 #2 1,786,488 434 9.38 Python 3 1,979,276 479 9.63 Python 3 #6 1,005,184 814 10.64 Python 3 #4 4,001,684 335 12.31 Go Failed binary-trees source mem gz cpu Go #6 411,424 611 29.23 Go #2 632,396 666 48.67 Go #3 328,700 799 50.09 Go #5 394,800 950 50.52 Go 240,292 482 51.02 Go #7 259,088 525 51.41 Python 3 #2 270,872 338 148.09 Python 3 #5 273,284 660 172.44 Python 3 #4 456,220 472 176.37 Python 3 282,996 589 178.66 Python 3 #3 669,832 1238 230.73 Python 3 Python 3.10.4 Go go version go1.18 linux/amd64 all Python 3 programs & measurements all Go programs & measurements