ipad - What ARM Floating Point Performance Comparison across the product line A9, A12, A15, A17, A53 etc -

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i've been research relative performance of arm parts, , have found difficult come comparisons... new a12, a17 , 64 bit a53 a57s;

what i've come far, based on linpack scores of different phone/tablets this:

  • a9 = 32 mflops/core/ghz
  • a15 = 100 mflops/core/ghz
  • apple a7 = 350 mflops /core/ghz (!)

so couple questions arise:

  1. where a12, a17, a53, a57 fit spectrum
  2. why apple's a7 floating point good? purely due 64bit internals, or else?

those linpack results via java. below linpack results via c , java. see following lots more mflops speeds.

http://www.roylongbottom.org.uk/android%20benchmarks.htm 

 system   arm    mhz   android  linpackv5  linpackv7  linpacksp neonlinpack linpackjava                                   mflops     mflops     mflops     mflops     mflops    t1    926ej    800       2.2      5.63       5.67       9.61       n/a        2.33   p4    v7-a8    800     2.3.5                80.18                            28.34 @g   t2    v7-a9    800     2.3.4     10.56     101.39     129.05     255.77      33.36   p5    v7-a9   1500     4.0.3               171.39                            50.87 @g   t4    v7-a9   1500a    4.0.3     16.86     155.52     204.61     382.46      56.89   t6    v7-a9   1600     4.0.3               196.47   t7    v7-a9   1300a    4.1.2     17.08     151.05     201.30     376.00      56.44   t9    926ej    800       2.2      5.66   t11   v7-a15  2000b    4.2.2     28.82     459.17     803.04    1334.90     143.06   t12   v7-a9   1600     4.1.2               147.07   t14   v7-a9   1500     4.0.4               180.95    p11   v7-a9   1400     4.0.4     19.89     184.44     235.54     454.21      56.99   p10   qu-s4   1500     4.0.3               254.90   measured mhz a=1200, b=1700    system - t = tablet, p = phone, e = emulator, @g = greencomputing, qu = qualcomm cpu

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