a) Minimum Requirement
Operating System :Microsoft Windows XP (Service Pack 3)
Processor : Intel Pentium III at 1.0 GHz
Memory : 512 MB RAM
b) Recommended Requirment
Operating System :Windows Vista
Processor : Intel Core 2 Quad at 2.4 GHz
Memory : 3 GB RAM
and just for curiosity's sake:
1) what if I use a Windows XP Service pack 2 - Will it not install?
2) what if I use a 256MB Ram - Will it not install? or will the program just be super slow?
anyway i'm assuming this is chessbase requirements or something; i think they just write down random stuff. the recommended requirements at any rate make no sense.
to use rybka 4 you basically just need a computer with windows, as far as i know. you may have to use a free GUI like arena (google 'arena chess' and see if they list requirements but i can't imagine they would be very steep or incompatible with whatever you have). arena is a 100% fully functional & fairly easy to use GUI & this way you can make sure everything will run fine before buying rybka 4. experiment with the included free engines if you want, or the rybka demo which you can download on this site; they will effect computer performance no differently than rybka (rybka just plays a much meaner game of chess ). if everything checks out fine order rybka 4 UCI from this site or chessok.com & install it into arena or the GUI of your choice.
for your RAM, the most imporant thing is that you make absolutely sure to set rybka's hash tables low, probably no higher than 64MB (maybe lower, maybe even quite abit lower...it's been awhile since i've had a computer w/ that amt of ram -- check the task manager to see how much windows + the GUI is using).
it might be more cost efficient, btw, to first spend that money on at least a -bit- of a hard drive upgrade...256MB RAM!!! o_O
As I tried in a VM Rybka3 could run unter Windows98 on a machine with less more than 128 MB (140MB worked 'well', but 128MB let R3 work halting in the beginning).
What ist the real R4-minimum?
And where could she stand against other engines on modern hardware?
> What ist the real R4-minimum?
For RAM, anything that has already the OS set up, and the GUI set up, as still has a 2MB of free RAM (actually, at least 10MB of RAM free for other Rybka things) should manage Rybka 4.
For a Processor, any processor that supports 32bit should suffice (I recall a member reporting that an earlier Rybka was running fine in a dinosaurian processor, this hasn't changed so Rybka 4 should be able to run in Pre-Pentium III).
For OS, Windows 2000 is not supported, so I guess pre-Windows 2000 isn't supported too.
Running Rybka 4 with a 32 bit single core has been devastating since so many seem to be able to run to much deeper depth faster which shows up against me after several moves. My computer just does not seem to see certain moves coming ahead of time (blitz games 10 min or less) until too late :(.
Any suggestions, Vas? Does Rybka need "hyperthreading" capability?
- higher clock speed gives proportionally higher program speed
- two as many cores gives 1.7x higher effective speed
- 64 bit operating system gives 1.8x or so higher speed
> - 64 bit operating system gives 1.8x or so higher speed
I think it was 1.6x (when matching 64bit 1CPU versus 32bit 2CPU, the multicore is expected to win) for Rybka 3, is Rybka 4 faster for this? (or is 32bit of R4 less optimized?).
Most of the message boards go on about the multiple threading. I don't intend to use the 3-D aspects of Rybka much but they are nice looking.
Right now on my single cpu I get a Fritz 12 benchmark test of about 1.9, which I hope to improve greatly.
In any case, I may end up with a higher end dual core vs a quad core, I'll watch the prices and the user reviews.
Incidentally I find that Rybka4 performance is better by checking some of the engine parameters in Fritz 12 Interface like "larger pages" and a few others nearby.
Thanks again and best wishes for your future work in chess.
> I think the debate runs on at great length for higher clock speed dual core vs lower clock speed quad core, but as is often stated it depends on the application.
Yes. Chess engines are relatively core-friendly - almost any quad will beat almost any dual.
But, as far as relating results to search depth, how does that compute, Vas? Is there a handy rule of thumb for relating time to search depth? I was hoping to achieve a search depth early on in the game, once the opening book expires, of at least 2 to 4 more plies per move in the same timeframe. Is that realistic?
> For RAM, anything that has already the OS set up, and the GUI set up, as still has a 2MB of free RAM (actually, at least 10MB of RAM free for other Rybka things) should manage Rybka 4.
Rybka3 on Windows98 with less than 128MB didn't work. :-(
And Windows98 should work with 16MB. http://en.wikipedia.org/wiki/Windows_98
Is it really Arena, that is so relative RAM-hungry?
I thought I had to look at Rybka3!
The reason why I posted this is because of a debate i'm having with a friend on the effects of Rybka4 Chessbase having it run on the above given specs. How much slower/faster it will be from spec a) to b) or if it will even run.
is there a way to figure out how much RAM to set aside? (for HASH size)
i'm sure it's based on at least 3 factors:
1) number of moves analyzed (x)
2) averge depth analyzed to (y)
3) # of PV (z)
i suppose a formula would look something like:
a(x) * b(y) * c(z) * d = HASH SIZE
where a, b, and c are constants for the corresponding values of x, y, and z. And where d is also a constant that converts everything into MB of RAM
Perhaps there is no formula, but is there a rule of thumb?
how does the i7 720 compare with a Q9450? i know it's 1.6GHz vs 2.6GHz chips, but would the i7 still outperform the Q9450? if so (or if not), but how much?
> would the i7-920 (and definitely the i7-930) blow the Q9450 out of the water?
yes fatser clock , faster ram (DDR3), SSE instructions, etc....
Powered by mwForum 2.27.4 © 1999-2012 Markus Wichitill