Author: Robert Hyatt
Date: 15:22:04 02/19/03
Go up one level in this thread
On February 19, 2003 at 14:46:58, Drexel,Michael wrote: >On February 19, 2003 at 11:50:42, Robert Hyatt wrote: > >>On February 18, 2003 at 02:54:19, Drexel,Michael wrote: >> >>>Dual Athlon 1900+ 1590 kn/s >>> >>>PIV 3.06 GHz 1310 kn/s >> >> >> >>That says it all. duals will be 2620. Factor in another 20-30% for > >x 2? IMO x 1.85 is more appropriate. > Very possibly true. I don't have Fritz. But even at 1.85 the SMT is going to most likely push him past 3.0M which was his goal. >>hyper-threading >>and he will get there. 2620 * 1.2 (20%)=3144K, 2620*1.3 (30%)=3406K. His 3M >>is certainly within reach and then some, and his xeon has a bigger cache IIRC >>(512K >>vs 256K) > >Bob, Crafty might gain ~30% with Hyper-Threding on xboard or winboard. >Chessbase native crafty gains ~20% I will say this again. There is _no_ absolute SMT number. It depends on a lot of things, from hash size, to the test position being tested, to endgame table probes, and so forth. It is not a single number that is constant. I have posted two different test results here, the first one was 30%, the second was 20%. Hence my continual reference to 20-30% raw speed improvement (NPS only) for Crafty. >Deep Fritz 7 gains only ~10% >Someone has reported that in a Forum. He claimed to have tested it. >I think this is realistically. Very possible if they didn't add the pause to their spinlocks and spinwaits. > >Furthermore my assumption is that the 1310 kN/s are Deep Fritz 7 Mark with >Hyperthreading on (2 Threads). That may or may not be true. I considered it as one thread, but I have no idea. If you are correct, that will change things a lot... >Not sure about that though. >PIV 2.67 GHz got only 1070 kN/s. Can you get 1310 kN/s with a PIV 3.06 >w/o HT? possibly, faster bus for one thing. > > >If he really purchased this 18.000$ machine he will gain a lot compared to >AMD. >However I bet he will not reach >2750 kN/s Deep Fritz 7 Mark in Fritz 7 GUI. > > this should be answerable in a few days... > > >> >>> >>>Athlon XP2800+ 1230 kn/s >>> >>>Athlon XP2600+ 1160 kn/s >>> >>>Athlon XP2400+ 1100 kn/s >>> >>>PIV 2.67 GHz 1070 kn/s >>> >>>Athlon XP2100+ 960 kn/s >>> >>>Athlon XP2000+ 940 kn/s >>> >>>Athlon XP1900+ 900 kn/s >>> >>>PIV 2.26 GHz 880 kn/s >>> >>>Athlon XP1800+ 830 kn/s >>> >>>Athlon XP1700+ 805 kn/s >>> >>>PIV 2.0 GHz 780 kn/s >>> >>>Athlon 1400C 770 kn/s >>> >>>Celeron 1500 760 kn/s >>> >>>Celeron 1400 690 kn/s >>> >>>PIV 1.8 GHz 660 kn/s >>> >>>Duron 1300 640 kn/s >>> >>>Celeron 1200 560 kn/s >>> >>>Intel PIII,1Ghz 540 kn/s >>> >>>Athlon 900 470 kn/s >>> >>>Celeron 600 295 kn/s >>> >>> >>> >>>F7,DF7 64 MB Hash >>> >>> >>>I could easily reach >3000 rating with my XP 2000+ on Playchess server, simply >>>by preparing a special opening book. >>>Others cheat and play with 2 machines and two Internet connections to get a high >>>rating. >>>What for?
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