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CPU bottleneck?

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shieldhead   10-18-2009 at 04:52:19 AM

ok so i was trying to figure out why my GTX 275 only gets 27.9 FPS at 1920 x 1080 on high 4xAA in Crysis. i tryed the same settings but lower resolution and got this:
28.25 FPS at 1680 x 1050.
doesnt seem right at all.
is this a cpu bottleneck cause i should be getting 40 fps easy...

here are my specs:
MSI K9N2 Platinum SLI mobo
750W PSU
9800 GT (for Physx)
GTX 275 (OC to FTW)
5400 CPU dual core at 2.8 Ghz

my guess is since i have a dual core and crysis is for quads maby thats also an issue.
PLEASE HELP ME I DONT WANT TO WASTE MONEY ON A BIGGER GRAPHIC CARD!

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Bronze CPUs badge WR2   10-18-2009 at 05:15:40 AM

1920 x 1080 with no AA/AF.... what do you get?

Reply to WR2
nforce4max   10-18-2009 at 06:05:38 AM

I know how you feel just went sli and my crappy e6400 can't even drive two 9800s at 3.4ghz even pushed to 3.6ghz with little gains.

Reply to nforce4max
sanchz   10-18-2009 at 06:06:05 AM

5400 Athlon X2 or Pentium Dual-Core?
Try overclocking the CPU a bit (to 3.0GHz, for instance) and check whether your FPS increase proportionately. If they still are the same, then the CPU isn't most probably the problem.

Reply to sanchz
sanchz   10-18-2009 at 06:07:48 AM

Wonder how big of a bottleneck I'll have with an Athlon X2 2.7 GHz and an ATI 5770

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swifty_morgan   10-18-2009 at 06:20:29 AM

A core2 duo running no less than 3.0 but preferably 3.4 and that video card ( 275 ) would make that game sing.

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Bronze CPUs badge WR2   10-18-2009 at 06:51:29 AM

http://images.anandtech.com/graphs/5850_092909204359/20178.png
Core i7-920 @ 3.33GHz / 6GB DDR3.

It does not look like your CPU is the bottleneck if you're getting the same performance as a 3.33Ghz quad core.
Crysis: Warhead benchmark @ AnandTech

Message quoted 1 times
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swifty_morgan   10-18-2009 at 06:57:46 AM

I don't care what anand says. I ran a processor at 3.0 and OC to 3.4 and noticed a difference playing Crysis......... also remember he's using a different and slower processor that can't compete with the core2.....

...... and now that I look at the chart and see what cards are running....... bet it's an i7 processor, no ?.............................

Message quoted 1 times
Message edited by swifty_morgan on 10-18-2009 at 06:58:59 AM
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shieldhead   10-18-2009 at 06:58:14 AM

just did a 1400 x 1050 benchmark and only got 31.6... now you cant tell me this isnt a bottleneck.
that graph above this doesnt look at all like the one on hardware canucks or guru3d.
idk where u got it.
oh and its a 5400 athlon x2

Message quoted 2 times
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shieldhead   10-18-2009 at 06:58:34 AM

ill try a 3.0 cpu overclock tomorrow

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Bronze CPUs badge WR2   10-18-2009 at 07:19:42 AM

shieldhead wrote :

that graph above this doesnt look at all like the one on hardware canucks or guru3d.
2

Guru3D says this about Crysis:
Crysis is of course a more GPU bound title, so your GPU is easily the bottleneck, even the most high end single GPU based solutions face that fact.

Reply to WR2
Bronze CPUs badge WR2   10-18-2009 at 07:23:02 AM

shieldhead wrote :

just did a 1400 x 1050 benchmark and only got 31.6... now you cant tell me this isnt a bottleneck.

Less pixels = higher FPS? What processes pixels - the CPU or the GPU?

Reply to WR2
zipzoomflyhigh   10-18-2009 at 03:01:20 PM

A 4770 would be bottlenecked by a X2 @ 2.8ghz. So yes, your being bottlenecked.


Message edited by zipzoomflyhigh on 10-18-2009 at 03:03:42 PM
Reply to zipzoomflyhigh
zipzoomflyhigh   10-18-2009 at 03:02:58 PM

WR2 wrote :

http://images.anandtech.com/graphs [...] /20178.png
Core i7-920 @ 3.33GHz / 6GB DDR3.

It does not look like your CPU is the bottleneck if you're getting the same performance as a 3.33Ghz quad core.
Crysis: Warhead benchmark @ AnandTech



You asked him what his fps was at 1920x1080 with no AA/AF, then you linked and compared it with a chart that shows 1920x1200 with 4X AA.........??

Message quoted 1 times
Message edited by zipzoomflyhigh on 10-18-2009 at 05:01:35 PM
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Bronze CPUs badge WR2   10-18-2009 at 06:56:37 PM

zipzoomflyhigh wrote :

You asked him what his fps was at 1920x1080 with no AA/AF, then you linked and compared it with a chart that shows 1920x1200 with 4X AA.........??

He gave his AA/AF FPS in his original post.

Reply to WR2
Bronze CPUs badge WR2   10-18-2009 at 06:58:59 PM

And he seems to think his video card should be giving him 40 FPS at 1920x1080.

Reply to WR2
Cryslayer80   10-18-2009 at 08:57:05 PM

swifty_morgan wrote :

I don't care what anand says. I ran a processor at 3.0 and OC to 3.4 and noticed a difference playing Crysis......... also remember he's using a different and slower processor that can't compete with the core2.....

...... and now that I look at the chart and see what cards are running....... bet it's an i7 processor, no ?.............................



It can, believe me. Not with E8xxx and E7xxx but yes with E6xxx and E4xxx.

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