wPrime

[spfoam1]

Here are two wPrime runs. Both were done with an E8500 CPU on an Abit IP35 Pro board. Both were done at exactly the same CPU and RAM settings. The only difference between the two is the number of threads the benchmark was set to run. I ran both several times to be sure the score was not abnormal for any reason.

This one was set at two threads
http://i294.photobucket.com/albums/mm107/spfoam1/wprime/setat2cores.jpg

This one was set at 4 threads
http://i294.photobucket.com/albums/mm107/spfoam1/wprime/setat4cores.jpg

[Jeffro64]

I tried that and got a higher score.:confused:

[DrNip]

Yeah for some reason it runs better on 4 cores even when you have a dual core.

[Jeffro64]

Here's a little better... but only at 4 threads.

[Kal-EL]

Here's a little better... but only at 4 threads.

Hey, that looks like good voltage bud for 4ghz on that chip. You might have a keeper. :D

[Jeffro64]

I think it will go a couple below that.... I think I raised it up trying to figure out that BSOD issue I was having and never put it back down.

[Komadyret]

Good to know I'm not alone in this, I have looked briefly into this wprime stuff myself.

In Vista at stock speed my E8400 acctually had it's fastest wprime with 16!!! threads, consistently.
With a 4.5GHz OC it ran fastest with 4 and 6 threads. Couldn't really find any consistent winner, but optimal threadcount was much different than for stock speeds.

My point; the optimal thread count is different for different chip-architechture, and it changes with the overclock of the cpu. This bench needs a few runs at various threadcounts to establish where it will run best. Also keep in mind that you should run it at least 4 or 5 times. Sometimes run #2 or run #3 or run #4 will go considerably faster (~1/2 tenth of a second faster for a core2 duo?) that the others.

[DrNip]

Just a heads up, on the i7's run it with a 8 thread count as it beats out the 4 thread count.

[G H Z]

wPrime is not consistent (like all other benchmarks) only the differences are somewhat amplified because it's running 2, 4, 8 or more threads. I do have one team mate who swears by the over-threaded approach.

[crustytheclown]

That makes two of us - I also know a guy who is an avid supporter of the over-threaded approach.

[thebanik]

^^^isnt overclocking commnity pretty small???, maybe you two are talking about the same guy???

[Deanzo]

Well hwbot has 857 teams, with a total of 15549 members.
So it's not that small.

[punx223]

my e8600 no matter the clock has been best at 4 threads

[Shahryar_NEO]

always set your threads on wPrime double your logical cores .

so if you use i7s use 8 thread and if you use C2D use 4 . another things is important is your OS !

[ReverendMaynard]

I thought it was pretty common knowledge that wprime needs to be set by threads, not cores....

[Neuromancer]

Think its an intel only thing (I do not know for sure). Did not improve my times at all setting 8 threads on my AMD quads.

Seen a lot of guys with e8XXX say set 4 threads it helps. Have not seen any AMD guys saying that though.