Dart versus Java fastest programs Always look at the source code. These are only the fastest programs. Do some of them use manually vectorized SIMD? Look at the other programs. They may seem more-like a fair comparison to you. regex-redux source secs mem gz busy cpu load Dart 4.95 881,344 1057 7.73 21% 63% 28% 44% Java 5.70 656,328 929 18.25 89% 76% 79% 75% n-body source secs mem gz busy cpu load Dart 9.44 124,912 1408 9.78 98% 1% 2% 3% Java 6.75 35,200 1489 6.83 0% 0% 100% 1% mandelbrot source secs mem gz busy cpu load Dart 11.94 233,372 907 32.15 37% 98% 37% 97% Java 4.11 68,204 796 16.20 98% 99% 98% 99% spectral-norm source secs mem gz busy cpu load Dart 5.59 129,020 489 5.74 1% 3% 2% 96% Java 1.68 38,348 950 6.43 96% 96% 96% 95% binary-trees source secs mem gz busy cpu load Dart 9.71 677,344 1386 31.43 79% 85% 81% 79% Java 2.50 2,487,096 835 7.90 88% 75% 75% 79% pidigits source secs mem gz busy cpu load Dart 3.37 148,780 500 3.56 11% 33% 23% 39% Java 0.79 35,568 764 0.84 99% 3% 3% 1% fasta source secs mem gz busy cpu load Dart 5.26 159,132 1402 5.44 3% 1% 3% 97% Java 1.20 44,124 2543 3.61 79% 86% 69% 65% k-nucleotide source secs mem gz busy cpu load Dart 23.50 527,696 1520 64.17 62% 70% 63% 78% Java 5.00 408,040 1812 16.36 74% 81% 86% 86% fannkuch-redux source secs mem gz busy cpu load Dart 57.09 121,204 499 57.52 0% 100% 0% 0% Java 11.00 34,104 1282 43.42 99% 98% 98% 99% reverse-complement source secs mem gz busy cpu load Dart 40.94 6,597,148 561 48.29 48% 11% 10% 49% Java 1.54 702,332 2183 3.55 78% 46% 49% 57% Dart Dart SDK version: 2.12.0 (stable) (Thu Feb 25 19:50:53 2021 +0100) on "linux_x64" Java openjdk 15 2020-09-15 OpenJDK Runtime Environment (build 15+36-1562) OpenJDK 64-Bit Server VM (build 15+36-1562, mixed mode, sharing) all Dart programs & measurements all Java programs & measurements