For comparison here are the results of stream_d on an AmigaOne XE with 750FX/800 (executed on AmigaOS4, but of course the OS makes no difference for such benchmarks):



Please note that the stream benchmarks aren't optimized, with functions optimized for PPC like the newlib.library memcpy() and memset(), or the AmigaOS4 final IExec->CopyMem[Quick]() and IUtility->SetMem(), you get much faster speeds than with trivial code like in the stream benchmarks or the clib2 memcpy()/memset() functions.

It seems much more faster than A1.

Faster memspeed is important for Sam440 to compensate for the lack of L2 cache. Some dnetc benchmark results would be interesting, it'd give us a better idea of how overall performance compares to a G3/800 in some computing-intensive tasks.

Some more comparison benchmarks can be found here.

That's a G4 (7455 I believe) @ 800mhz (A1):

-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array size = 1000000, Offset = 0
Total memory required = 22.9 MB.
Each test is run 10 times, but only
the *best* time for each is used.
-------------------------------------------------------------
Your clock granularity/precision appears to be 2 microseconds.
Each test below will take on the order of 65684 microseconds.
(= 32842 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the
precision of your system timer.
-------------------------------------------------------------
Function Rate (MB/s) RMS time Min time Max time
Copy: 186.0894 0.0862 0.0860 0.0867
Scale: 166.2200 0.0964 0.0963 0.0969
Add: 173.7731 0.1383 0.1381 0.1386
Triad: 171.0790 0.1404 0.1403 0.1408

Looks promising,but would love the see the sam at +1ghz.

Sam440 is starting to look interesting now

I hope the sam440 will come whit faster CPU at some point?

Quote:It's using the fastest 440 CPU with FPU already, the other 440 CPUs which are available with higher clock speeds and/or have a L2 cache don't have a FPU.