Em 7/10/2006, "Lennart Sorensen" <[EMAIL PROTECTED]> escreveu:
>On Mon, Jul 10, 2006 at 10:19:33AM -0500, Andr?s Calder?n wrote: >> The ARM is (usually) integer processing oriented. >> >> Benchmarks for the XSCALE255 : >> http://www.gumstix.org/tikiwiki/tiki-index.php?page=Benchmarks >> >> An useful site for comparison: >> http://www.eembc.org/ >> >> ARM is probably no the better choice for image treatment (obviously this >> depend of the algoritms) >> This is an interesant alternative: >> http://www.ime.usp.br/~fr/sbc/ >> An FPGA can speedup greatly the power processing.... >> X86 in the easy choice (neither the funnier, and smaller ) see Mini-ITX : >> www.mini-itx.com > >Well I have certainly seen the difference between a 400 MHz PXA255 and a >266MHz Geode GX. The Geode has floating point. perl runs much faster >on it than the arm. On the other hand the arm has no problem moving >90Mbit bidirectianally between two ethernet ports, while the geode can >only muster about 35Mbit each way on the same mainboard at which point >the CPU is maxed out. Certainly for raw throughput and integer work in >general, the arm is easily many times faster, while on floating point of >course the geode (x86) wins easily. We ended up using the geode in our >design only because we couldn't get the PCI bus to be reliable on the >arm, which killed its use for us. For everything else it was perfect. > >The mips systems like alchemy look very nice too. > >Len Sorensen Mips ... i have been looking for this, for a try: http://www.acmesystems.it/?id=4 but i think that a minimum of 200 MHz is needed. does mips have FP? I am not an electronic expert ... and i have big abillity to choose ... geode is x86 compatible ... it is a good chance ... although ... can he fit on a custom home made board? best regards. Luis Matos
