Scimark Macbook Pro Retina 2012, "SciMark 2.0 - Computational Test: Composite", Higher Results Are Better "Xcode 10",534.8,528.56,534.94 "Xcode 10 O2",1305.52,1451.49,1478.99,1469.59,1450.01,1461.27,1458.04,1419.6,1432.16,1464.12 "Xcode 10 O3",1466.93,1478.8,1490.46 "Xcode 10 Ofast",1501.56,1508.56,1505.15 "Xcode 10 O2 march=ivybridge",1451.59,1428.16,1425.88 "Xcode 10 GCC 6",487.71,488.02,489.78 "GCC 6 O2",1232.19,1222.37,1226.07 "GCC 6 O3",1422.87,1408.41,1415.28 "GCC 6 Ofast",1451.27,1469.35,1456.21 "GCC 6 O2 march=ivybridge",1246.68,1236.12,1228.25 "GCC 7",487.42,485.06,482.85 "GCC 7 O2",1138.64,1228.07,1208.97,1226.5,1232.15 "GCC 7 O2 march=ivybridge",1243.85,1246.66,1219.84 "GCC 7 O3",1257.28,1252.31,1246.59 "GCC 7 Ofast",1411.87,1439.08,1424.08 "GCC 8",482.02,483.61,484.02 "GCC 8 O2",1256.13,1228.13,1251 "GCC O3",1318.38,1321.56,1324.21 "GCC 8 Ofast",1322.86,1329.97,1332.89 "GCC 8 O2 march=ivybridge",1232.84,1228.54,1214 "GCC 9",483.41,484.06,482.56 "GCC 9 O2",1185.74,1218.03,1196.84 "GCC 9 O3",1323.01,1315.99,1323.05 "GCC 9 Ofast",1340.49,1313.05,1340.13 "Clang 6",531.58,528.24,526.38 "Clang 6 O2",1490.04,1444.86,1462.88 "Clang 6 O3",1470.29,1440.63,1451.44 "Clang 6 Ofast",1477.09,1489.97,1474.96 "Clang 6 O2 march=ivybridge",1478.23,1466.48,1475.36 "Clang 7",532.35,531.08,530.83 "Clang 7 O2",1468.68,1469.89,1480.57 "Clang 7 O3",1454.08,1439.38,1465 "Clang 7 Ofast",1486.26,1491.52,1503.66 "Clang 7 O2 march=ivybridge",1452.08,1482.06,1474.51 "Clang 8",517.36,532.69,530.08 "Clang 8 O2",1464.15,1463.82,1460.77 "Clang 8 O3",1426.45,1437.16,1438.59 "Clang 8 Ofast",1498.19,1490.09,1489.22 "Clang 8 O2 march=ivybridge",1466.97,1440.69,1480.39 "Archlinux GCC 8.2 V2",488.07,488.49,485.22 "Archlinux GCC 8.2 O3",1487.08,1502.16,1502.2 "Archlinux Clang 7",544.41,543.87,544.16 "Archlinux Clang 7 O3",1521.55,1514.49,1511.5 "Gentoo 5.1.1 NOPTI GCC 8.3 02 ivybridge",1261.72,1273.18,1271.13 "Gentoo 5.1.1 NOPTI GCC 8.3 03 ivybridge",1561.18,1543.27,1557.94 "Clear Linux GCC 9 O2 ivybridge",1279.53,1255.46,1277.76 "Clear Linux GCC 9 O3 ivybridge",1539.32,1544.14,1533.48 "Clear Linux GCC 9 Ofast ivybridge",1546.45,1522.03,1538.91 "Gentoo 5.6.4 NOPTI GCC 9.3 O2 ivybridge",1252.43,1275.91,1275.65 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O2 ivybridge",1545.31,1547.56,1548.45 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 ivybridge",1502.48,1501.77,1502.55 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O3 ivybridge",1556.17,1556.23,1555.37 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 G-overlay ivybridge",1447.95,1446.77,1446 "FreeBSD 12.1 Clang 8.0.1",509.56,503.22,505.28 "FreeBSD 12.2 Clang 10.0.1",506.88,508.87,507.67 "Xcode 12",531.98,533.55,531.01 "SciMark 2.0 - Computational Test: Monte Carlo", Higher Results Are Better "Xcode 10",104.51,104.33,102.8 "Xcode 10 O2",375.74,403.46,446.5 "Xcode 10 O3",446.99,450.37,514.93 "Xcode 10 Ofast",439.24,393.64,392.42 "Xcode 10 O2 march=ivybridge",506.03,443.32,441.7 "Xcode 10 GCC 6",104.5,102.07,105.94 "GCC 6 O2",476.64,528.64,479.49 "GCC 6 O3",532.87,475.96,478.94 "GCC 6 Ofast",532.62,531.82,478.21 "GCC 6 O2 march=ivybridge",521.11,527.38,527.08 "GCC 7",104.91,104.79,105.37 "GCC 7 O2",529.96,535.06,416.54 "GCC 7 O2 march=ivybridge",529.83,533.34,420.25 "GCC 7 O3",440.36,438.2,436.89 "GCC 7 Ofast",457.06,536.95,533.63 "GCC 8",107.27,104.55,106.6 "GCC 8 O2",541.08,430.88,540.59 "GCC O3",425.12,428.67,427.82 "GCC 8 Ofast",532.49,538.8,537.12 "GCC 8 O2 march=ivybridge",429.39,432.63,428.11 "GCC 9",107.48,107.68,107.51 "GCC 9 O2",466.35,494.99,468.48 "GCC 9 O3",466.75,468.17,492.92 "GCC 9 Ofast",520.29,524.03,493.16 "Clang 6",102.26,101.8,97.17 "Clang 6 O2",511.83,405.23,509.52 "Clang 6 O3",508.24,406.73,409.5 "Clang 6 Ofast",485.56,401.94,397.72 "Clang 6 O2 march=ivybridge",513.26,511.35,511.64 "Clang 7",101.85,99.7,98.57 "Clang 7 O2",504.72,506.18,509.37 "Clang 7 O3",468.18,410.34,473.48 "Clang 7 Ofast",398.02,487.52,497.08 "Clang 7 O2 march=ivybridge",415.83,511.11,511.22 "Clang 8",100.61,102.69,100.59 "Clang 8 O2",482.84,483.85,481.13 "Clang 8 O3",338.19,336.16,339.88 "Clang 8 Ofast",449.08,454.43,454.77 "Clang 8 O2 march=ivybridge",508.52,418.99,506.36 "Archlinux GCC 8.2 V2",110.04,110.19,96.2 "Archlinux GCC 8.2 O3",560.49,560.91,559.75 "Archlinux Clang 7",105.59,106.16,105.57 "Archlinux Clang 7 O3",524.48,524.71,516.58 "Gentoo 5.1.1 NOPTI GCC 8.3 02 ivybridge",555.13,553.28,553.4 "Gentoo 5.1.1 NOPTI GCC 8.3 03 ivybridge",561.14,543.37,565.15 "Clear Linux GCC 9 O2 ivybridge",560.79,560.22,559.24 "Clear Linux GCC 9 O3 ivybridge",546.51,548.04,551.3 "Clear Linux GCC 9 Ofast ivybridge",553.66,552.79,554.11 "Gentoo 5.6.4 NOPTI GCC 9.3 O2 ivybridge",545.09,559.72,544.6 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O2 ivybridge",525.83,524.64,525.04 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 ivybridge",540.39,560.82,561.31 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O3 ivybridge",524.78,524.21,525.23 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 G-overlay ivybridge",1257.04,1257.92,1256.57 "FreeBSD 12.1 Clang 8.0.1",99.31,99.31,99.59 "FreeBSD 12.2 Clang 10.0.1",99.31,99.31,99.59 "Xcode 12",104.61,104.83,104.11 "SciMark 2.0 - Computational Test: Jacobi Successive Over-Relaxation", Higher Results Are Better "Xcode 10",967.56,966.95,969.1 "Xcode 10 O2",1248.46,1384.13,1386.02 "Xcode 10 O3",1388.54,1383.68,1378.41 "Xcode 10 Ofast",1565.2,1566.33,1570 "Xcode 10 O2 march=ivybridge",1378.48,1373.43,1368.77 "Xcode 10 GCC 6",968.38,967.47,972.08 "GCC 6 O2",981.07,981.38,966.51 "GCC 6 O3",1384.33,1383.63,1390.16 "GCC 6 Ofast",1555.17,1571.79,1564.39 "GCC 6 O2 march=ivybridge",978.01,970.8,972.62 "GCC 7",957.38,954.93,952.64 "GCC 7 O2",975.08,975.87,983.27 "GCC 7 O2 march=ivybridge",978.1,978.56,978 "GCC 7 O3",1182.15,1195.32,1178.34 "GCC 7 Ofast",1558.28,1556.15,1546.87 "GCC 8",950.75,950.61,951.19 "GCC 8 O2",977.77,979.33,976.96 "GCC O3",1380.74,1400.91,1392.04 "GCC 8 Ofast",1394.61,1395.76,1393.26 "GCC 8 O2 march=ivybridge",975.26,976.08,975.48 "GCC 9",951.63,953.36,944.32 "GCC 9 O2",978.75,972.13,970.74 "GCC 9 O3",1390.59,1380.22,1366.06 "GCC 9 Ofast",1397.8,1389.55,1401.71 "Clang 6",959.24,956.43,956.62 "Clang 6 O2",1386.07,1384.15,1382.34 "Clang 6 O3",1381.55,1355.43,1371.28 "Clang 6 Ofast",1557.73,1560.05,1552.5 "Clang 6 O2 march=ivybridge",1370.27,1385.19,1375.37 "Clang 7",965.46,965.66,962.53 "Clang 7 O2",1379.41,1375.14,1389.26 "Clang 7 O3",1373.6,1377.6,1380.84 "Clang 7 Ofast",1552.28,1550.12,1548.87 "Clang 7 O2 march=ivybridge",1373.71,1391.12,1374.8 "Clang 8",965.91,965.84,962.59 "Clang 8 O2",1377.06,1362.41,1382.06 "Clang 8 O3",1385.19,1382.34,1389.84 "Clang 8 Ofast",1548.46,1560.51,1551.75 "Clang 8 O2 march=ivybridge",1383.65,1377.46,1365.93 "Archlinux GCC 8.2 V2",957.2,957.75,956.63 "Archlinux GCC 8.2 O3",1410.59,1412.44,1412.26 "Archlinux Clang 7",980.07,979.12,978.39 "Archlinux Clang 7 O3",1411.53,1412.89,1411.06 "Gentoo 5.1.1 NOPTI GCC 8.3 02 ivybridge",988.24,988.32,987.59 "Gentoo 5.1.1 NOPTI GCC 8.3 03 ivybridge",1410.51,1409.26,1409.2 "Clear Linux GCC 9 O2 ivybridge",991.7,991.88,991.97 "Clear Linux GCC 9 O3 ivybridge",1414.21,1415.38,1414.15 "Clear Linux GCC 9 Ofast ivybridge",1416.13,1411.83,1414.13 "Gentoo 5.6.4 NOPTI GCC 9.3 O2 ivybridge",984.13,991.41,989.35 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O2 ivybridge",1413.53,1414.65,1413.14 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 ivybridge",1414.92,1415.42,1414.99 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O3 ivybridge",1414.69,1413.05,1414.28 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 G-overlay ivybridge",1416.8,1414.46,1414.35 "FreeBSD 12.1 Clang 8.0.1",921.2,921.2,916.89 "FreeBSD 12.2 Clang 10.0.1",919.04,921.2,921.2 "Xcode 12",961.11,969.34,967.02 "SciMark 2.0 - Computational Test: Dense LU Matrix Factorization", Higher Results Are Better "Xcode 10",837.35,806.19,840.06 "Xcode 10 O2",3042.26,3305.91,3333.21 "Xcode 10 O3",3309.66,3354.77,3369.91 "Xcode 10 Ofast",3334.45,3344.84,3372.6 "Xcode 10 O2 march=ivybridge",3190.4,3139.43,3155.71 "Xcode 10 GCC 6",696.46,698.77,698.6 "GCC 6 O2",2460.41,2426.38,2412.83 "GCC 6 O3",2927.85,2924.56,2957.44 "GCC 6 Ofast",2872.69,2966.56,2946.85 "GCC 6 O2 march=ivybridge",2469,2461.04,2394.35 "GCC 7",694.74,687.15,688.23 "GCC 7 O2",2102.63,2443.85,2435.07 "GCC 7 O2 march=ivybridge",2487.87,2490.57,2466.51 "GCC 7 O3",2610.07,2563.31,2567.34 "GCC 7 Ofast",2898.49,2897.4,2857.35 "GCC 8",684.31,689,686.22 "GCC 8 O2",2471.4,2462.28,2458.17 "GCC O3",2495.7,2504.24,2501.25 "GCC 8 Ofast",2488.77,2492.29,2512.68 "GCC 8 O2 march=ivybridge",2460.83,2434.76,2375.49 "GCC 9",690.23,685.78,688.18 "GCC 9 O2",2344.57,2457.98,2394.42 "GCC 9 O3",2517.89,2515.18,2516.65 "GCC 9 Ofast",2511.62,2373.39,2492.28 "Clang 6",836.1,832.31,820.52 "Clang 6 O2",3324.33,3274.79,3262.82 "Clang 6 O3",3286.44,3293.97,3309.64 "Clang 6 Ofast",3252.15,3307.59,3221.71 "Clang 6 O2 march=ivybridge",3322.48,3251.71,3310.27 "Clang 7",836.62,831.05,830.31 "Clang 7 O2",3251.92,3288.14,3313.35 "Clang 7 O3",3285.17,3269.51,3309.6 "Clang 7 Ofast",3298.97,3242.6,3283.66 "Clang 7 O2 march=ivybridge",3254.42,3316.66,3310.69 "Clang 8",776.48,836.44,832.93 "Clang 8 O2",3271.25,3311.56,3270.15 "Clang 8 O3",3223.21,3291.91,3269.77 "Clang 8 Ofast",3294.3,3265.1,3276.81 "Clang 8 O2 march=ivybridge",3299.07,3204.15,3327.38 "Archlinux GCC 8.2 V2",702.55,703.02,702.53 "Archlinux GCC 8.2 O3",3181.46,3213.51,3212.64 "Archlinux Clang 7",859.02,860.73,861.25 "Archlinux Clang 7 O3",3420.4,3386.47,3380.23 "Gentoo 5.1.1 NOPTI GCC 8.3 02 ivybridge",2503.39,2552.01,2554.77 "Gentoo 5.1.1 NOPTI GCC 8.3 03 ivybridge",3419.73,3321.05,3378.38 "Clear Linux GCC 9 O2 ivybridge",2562.16,2454.78,2561.82 "Clear Linux GCC 9 O3 ivybridge",3299.89,3305.72,3260.96 "Clear Linux GCC 9 Ofast ivybridge",3311.57,3205.8,3287.81 "Gentoo 5.6.4 NOPTI GCC 9.3 O2 ivybridge",2451.11,2511.89,2517.37 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O2 ivybridge",3422.74,3437.43,3440.52 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 ivybridge",3242.42,3219.64,3229.63 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O3 ivybridge",3423.42,3439.98,3439.65 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 G-overlay ivybridge",2500.54,2510.29,2506.94 "FreeBSD 12.1 Clang 8.0.1",803.14,774,799.38 "FreeBSD 12.2 Clang 10.0.1",799.38,799.38,790.12 "Xcode 12",832.37,831.75,827.63 "SciMark 2.0 - Computational Test: Sparse Matrix Multiply", Higher Results Are Better "Xcode 10",600.87,602.28,599.45 "Xcode 10 O2",1563.67,1907.77,1930.23 "Xcode 10 O3",1895.04,1908,1887.64 "Xcode 10 Ofast",1872.49,1940.02,1903.82 "Xcode 10 O2 march=ivybridge",1891.81,1890.95,1870.84 "Xcode 10 GCC 6",517.05,517.34,521.19 "GCC 6 O2",1941.71,1873.98,1970.57 "GCC 6 O3",1969.75,1955.02,1955.48 "GCC 6 Ofast",1998.91,1980.26,1996 "GCC 6 O2 march=ivybridge",1968.11,1929.61,1954.8 "GCC 7",520.76,519.1,512.75 "GCC 7 O2",1789.73,1908.45,1909.58 "GCC 7 O2 march=ivybridge",1924.77,1932.54,1933.56 "GCC 7 O3",1779.49,1788.03,1769.49 "GCC 7 Ofast",1774.86,1908.55,1884.03 "GCC 8",510.32,517.94,515.57 "GCC 8 O2",1999.85,1971.22,1977.93 "GCC O3",1990.56,1978.17,2006.25 "GCC 8 Ofast",1901.88,1939.38,1927.02 "GCC 8 O2 march=ivybridge",1998.93,2007.01,1992.3 "GCC 9",517.72,518.06,519.17 "GCC 9 O2",1857.7,1867.26,1855.77 "GCC 9 O3",1946.38,1927.33,1943.53 "GCC 9 Ofast",1979.64,1987.22,2022.62 "Clang 6",597.22,590.96,593.01 "Clang 6 O2",1936.04,1866.86,1866.85 "Clang 6 O3",1882.86,1852.31,1877.15 "Clang 6 Ofast",1795.97,1883.2,1910.64 "Clang 6 O2 march=ivybridge",1894.54,1889.22,1884.95 "Clang 7",598.12,596.66,597.89 "Clang 7 O2",1895.94,1874.05,1878.92 "Clang 7 O3",1885.57,1828.92,1850.15 "Clang 7 Ofast",1878.78,1882.93,1884.76 "Clang 7 O2 march=ivybridge",1900.51,1881.26,1869 "Clang 8",594.5,590.82,591.38 "Clang 8 O2",1889.73,1850.66,1864.87 "Clang 8 O3",1889.24,1869.71,1884.86 "Clang 8 Ofast",1898.5,1872.3,1861.65 "Clang 8 O2 march=ivybridge",1834.28,1893.41,1896.13 "Archlinux GCC 8.2 V2",527.63,527.42,526.93 "Archlinux GCC 8.2 O3",2015.56,2014.73,2017.53 "Archlinux Clang 7",610.73,608.3,608.64 "Archlinux Clang 7 O3",1940.5,1938.24,1938.59 "Gentoo 5.1.1 NOPTI GCC 8.3 02 ivybridge",1989.45,1992.97,1986.04 "Gentoo 5.1.1 NOPTI GCC 8.3 03 ivybridge",2134.38,2168.2,2155.73 "Clear Linux GCC 9 O2 ivybridge",1999.85,1995.91,1998.32 "Clear Linux GCC 9 O3 ivybridge",2158.17,2171.56,2163.14 "Clear Linux GCC 9 Ofast ivybridge",2182.9,2166.97,2166.74 "Gentoo 5.6.4 NOPTI GCC 9.3 O2 ivybridge",1978.01,2017.98,2021.85 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O2 ivybridge",2063.04,2061.6,2063.65 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 ivybridge",2015.13,2014.56,2013.91 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O3 ivybridge",2112.39,2101.66,2092.93 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 G-overlay ivybridge",1760.24,1746.26,1746.17 "FreeBSD 12.1 Clang 8.0.1",576.14,573.62,573.62 "FreeBSD 12.2 Clang 10.0.1",569.88,573.62,576.14 "Xcode 12",597.27,597.07,597.21 "SciMark 2.0 - Computational Test: Fast Fourier Transform", Higher Results Are Better "Xcode 10",163.72,163.04,163.3 "Xcode 10 O2",297.47,256.17,299 "Xcode 10 O3",294.4,297.17,301.44 "Xcode 10 Ofast",296.42,297.96,286.91 "Xcode 10 O2 march=ivybridge",291.21,293.68,292.39 "Xcode 10 GCC 6",152.14,154.45,151.08 "GCC 6 O2",301.12,301.46,300.95 "GCC 6 O3",299.55,302.89,294.36 "GCC 6 Ofast",296.96,296.34,295.61 "GCC 6 O2 march=ivybridge",297.15,291.77,292.39 "GCC 7",159.29,159.33,155.28 "GCC 7 O2",295.8,277.12,300.42 "GCC 7 O2 march=ivybridge",298.67,298.31,300.88 "GCC 7 O3",274.35,276.68,280.91 "GCC 7 Ofast",293.11,296.35,298.51 "GCC 8",157.44,155.95,160.53 "GCC 8 O2",290.55,296.95,301.34 "GCC O3",299.77,295.81,293.68 "GCC 8 Ofast",296.56,283.61,294.35 "GCC 8 O2 march=ivybridge",299.8,292.24,298.63 "GCC 9",149.97,155.44,153.63 "GCC 9 O2",281.34,297.81,294.8 "GCC 9 O3",293.42,289.04,296.07 "GCC 9 Ofast",293.12,291.06,290.9 "Clang 6",163.09,159.71,164.58 "Clang 6 O2",291.9,293.27,292.85 "Clang 6 O3",292.34,294.71,289.61 "Clang 6 Ofast",294.03,297.09,292.2 "Clang 6 O2 march=ivybridge",290.59,294.97,294.55 "Clang 7",159.69,162.32,164.86 "Clang 7 O2",311.42,305.94,311.97 "Clang 7 O3",314.94,310.54,310.95 "Clang 7 Ofast",303.25,294.43,303.95 "Clang 7 O2 march=ivybridge",315.91,310.15,306.86 "Clang 8",149.28,167.66,162.91 "Clang 8 O2",299.88,310.61,305.67 "Clang 8 O3",296.42,305.69,308.61 "Clang 8 Ofast",300.62,298.11,301.12 "Clang 8 O2 march=ivybridge",309.34,309.41,306.14 "Archlinux GCC 8.2 V2",142.93,144.06,143.78 "Archlinux GCC 8.2 O3",267.32,309.22,308.82 "Archlinux Clang 7",166.61,165.06,166.93 "Archlinux Clang 7 O3",310.86,310.13,311.04 "Gentoo 5.1.1 NOPTI GCC 8.3 02 ivybridge",272.4,279.35,273.86 "Gentoo 5.1.1 NOPTI GCC 8.3 03 ivybridge",280.14,274.47,281.26 "Clear Linux GCC 9 O2 ivybridge",283.16,274.5,277.42 "Clear Linux GCC 9 O3 ivybridge",277.79,280,277.89 "Clear Linux GCC 9 Ofast ivybridge",267.97,272.74,271.75 "Gentoo 5.6.4 NOPTI GCC 9.3 O2 ivybridge",303.79,298.52,305.07 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O2 ivybridge",301.44,299.49,299.93 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 ivybridge",299.53,298.41,292.94 "Gentoo 5.6.4 NOPTI Clang 9.0.1 O3 ivybridge",305.57,302.22,304.79 "Gentoo 5.6.4 NOPTI GCC 9.3 O3 G-overlay ivybridge",305.12,304.9,305.95 "FreeBSD 12.1 Clang 8.0.1",148,148,136.9 "FreeBSD 12.2 Clang 10.0.1",146.81,150.86,151.27 "Xcode 12",164.53,164.75,159.08