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From: Yao Konan on 1 Sep 2006 09:54 Wow again over 10 times faster the TI92+. If the TI-Nspire is as relativelly as fast for all operations than it is definitvelly a quantum leap from the TI89Ti/Voyage 200 in term of performances. It is too bad it doesn't have 3D plotting because with such a speed and the grayscale levels high resolution screen,real time 3D rotation of surfaces would be wonderful. Btw have you down some speed tests on your own ? Michael Kuyumcu a écrit : > That's 15 seconds > Michael Kuyumcu > > > > Yao Konan schrieb: > > > > The on-calc system info says otherwise: it treats the whole memory as > > > one block. The system software takes up about 8 or so MB, and the rest > > > is free for you, the user. At least the system info does not > > > differentiate any ram or rom areas visibly. > > > > Well,i think that those 32 MB are Flash ROM as the TI site claims that > > the TI-NSpire has close to 20 MB of storage memory thus Flash ROM. > > The TI site also claims 16 MB of computing memory so iassume that this > > memory is not SRAM and can't be used to store datas. > > > > > Interesting: fib(10000) produces an overflow, even in Exact mode, while > > > the CAS seems to be capable of handling multiple-precision numbers > > > otherwise with no problems.fib(1000) works, and does so within 2 > > > seconds. > > > > Surprising. > > That would mean that the TI-NSpire is more than 10 times faster than my > > TI92+ on this problem.This is simply incredible ! > > To have a better idea of the relative speed of this tool could you > > clock this operation which takes almost 4 min on a TI92+ ? > > approx(randmat(20,20)^-1) > > It doesn't really suprise me that fib(10000) returns an overflow. > > > > > Regards, > > > Michael Kuyumcu > > > > > > > > >
From: Jean-Yves Avenard on 1 Sep 2006 12:17 Michael Kuyumcu wrote: >> That would mean that the TI-NSpire is more than 10 times faster than my >> TI92+ on this problem.This is simply incredible ! you're comparing a 16 bits processor running at 12Mhz vs a 32bits RISC processor running at over 100Mhz ... It will likely be more than 10 times faster... JY
From: Yao Konan on 1 Sep 2006 13:10 What make you think that the TI-Nspire runs at over 100 Mhz ? According to the education.ti site the NSpire CPU has over 6 times the speed of the TI89TI CPU,so i would say that it should run at 75 Mhz like the HP50G CPU and close to the ClassPad CPU. Anyway,i think that it is incredible because the NSpire certainly uses the same algorithms as the TI68k and BCD,yet it seems from 16 to almost 20 times faster than my TI92+ for BCD floating operations. So this means that TI has done quite a good job on the TI-Nspire software. Jean-Yves Avenard a écrit : > Michael Kuyumcu wrote: > > >> That would mean that the TI-NSpire is more than 10 times faster than my > >> TI92+ on this problem.This is simply incredible ! > > you're comparing a 16 bits processor running at 12Mhz vs a 32bits RISC > processor running at over 100Mhz ... > It will likely be more than 10 times faster... > > JY
From: JB on 1 Sep 2006 13:39 Yao Konan wrote: > What make you think that the TI-Nspire runs at over 100 Mhz ? > According to the education.ti site the NSpire CPU has over 6 times the > speed of the TI89TI CPU,so i would say that it should run at 75 Mhz > like the HP50G CPU and close to the ClassPad CPU. > Anyway,i think that it is incredible because the NSpire certainly uses > the same algorithms as the TI68k and BCD,yet it seems from 16 to almost > 20 times faster than my TI92+ for BCD floating operations. > So this means that TI has done quite a good job on the TI-Nspire > software. > > Jean-Yves Avenard a écrit : > > > Michael Kuyumcu wrote: > > > > >> That would mean that the TI-NSpire is more than 10 times faster than my > > >> TI92+ on this problem.This is simply incredible ! > > > > you're comparing a 16 bits processor running at 12Mhz vs a 32bits RISC > > processor running at over 100Mhz ... > > It will likely be more than 10 times faster... > > > > JY HI Yao Konan, Now that you have had a peek at the tinspire, aside from the disturbing lack of 3d plotting, how do you rate it? I'd rather have the 3-d capability and more math capability such as Laplace transforms than the extra speed. Of course having it all would be even better. - JB
From: TW on 1 Sep 2006 13:55
> HI Yao Konan, Now that you have had a peek at the tinspire, aside from > the disturbing lack of 3d plotting, how do you rate it? I think he is just commenting on what Michael was reporting. TW |