Crysis more of a CPU stress than Prime??

Billzz · 10 Jul 2008 at 14:34

Hi all

I've just recently overclocked my E8400 to 3.6ghz and while it passed 12 hours of Prime95 stress testing (both cores), when running the Crysis benchmark it kept freezing at odd points - I upped the vcore a notch (nothing else changed) and all is well in Crysis now.

Is this an indication that Crysis is more of a CPU stress test than Prime95?? I find this difficult to believe, but can't think of any other explanation.

Just wondered peoples opinions on this ... and if anyone else has experienced similar??

Happy · 10 Jul 2008 at 14:42

I would be amazed if this is true, although I have seen and heard that crysis is cpu bound more than gpu bound (testing was done on a skulltrail 2xextreme cpu and xfire/sli ...can't rememeber the link)

Ben M · 10 Jul 2008 at 14:47

why do you think it's the cpu causing the freezes? what's the cpu load when it happens?

Pneumonic · 10 Jul 2008 at 14:47

probably using different parts of the processor, Prime95 is a very good general guide.. but for example folding @ home I find will fail on settings that I know are Prime stable...

Greebo · 10 Jul 2008 at 14:52

I've had 8 hour prime systems fail in games as well. After all it is only a guide to stability, not a 100% guarantee.

Plus people normall do small tft for 8 hours and forget to do another 8 hours at blend to check for system stability.

aaronhowe · 11 Jul 2008 at 13:12

Surely running a game rather than using prime will give you more of an indication of the computers overall stability as it will be using all the components in the PC not just the particular piece you are benchmarking. Thats probably why crysis crashed but prime was fine.

mrthingyx · 11 Jul 2008 at 14:08

Prime is a wonderful indicator a CPU's ability to calculate prime numbers/factors/etc. But not much else. Anything beyond that is mere conjecture based on extrapolation of the results achieved from calculating Prime successfully.

I really wish people would see that Prime-stable DOES NOT EQUAL "stable," as such. Run your overclocked computer (not just particular elements of the CPU) through the mill by arithmetic/algebraic/vector calculations, but also through playing games, burning/transcoding massive media files and manipulating massive spreadsheets/databases.

THEN and only then will you have an idea of how stable your PC is under the loads applied to it.

1kiwi · 12 Jul 2008 at 09:57

The problem is your graphics card and it has nothing to do with you CPU. Is it overclocked? What are your specs?

FreeStream · 12 Jul 2008 at 10:23

Pneumonic said:
probably using different parts of the processor, Prime95 is a very good general guide.. but for example folding @ home I find will fail on settings that I know are Prime stable...

^^

Prime95, although useful is pretty rubbish at doing *all* the CPU.

Hence why I don't bother with it and use F@H, Games, video encoding to check for me.

weescott · 12 Jul 2008 at 10:41

mrthingyx said:
I really wish people would see that Prime-stable DOES NOT EQUAL "stable," as such.

Totally agree!

Prime is the most miss used/over rated application to test "stability".

IMO, people should test proper stability with F @ H for 24hrs while PC mark vantage is running.