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Core i7 950 Bottle neck 7970?

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May 18, 2012 9:56:34 PM

System Specs :
Core i7 950
GIGABYTE x58A-UD3R motherboard
HD 7970
Corsair 750 watt psu
G.skill 6 gigs triple channel 1333mhz memory


Recently bought the hd 7970. Tried crysis warhead and the gpu maxes out at 40% usage on stock cpu clocks and 60% usage on 4ghz overclock, is this processor honestly bottle necking this card? I thought it was supposed to be a fast cpu. Could the memory have anything to due with this as well? I only manage 40-50 fps because the card isn't even doing work because something is holding it back.
a c 203 à CPUs
May 18, 2012 10:24:16 PM

Hello Gosu-Vu;

Resolution at 1920x1080? Graphics settings at Highest?
Did you test in single player mode?

In single player mode:
When you lower the graphics settings to Medium do your frame rates go up? If yes, your CPU isn't bottlenecking the game.
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a c 203 à CPUs
May 18, 2012 10:28:43 PM

Core i7 950 @ 4.0Ghz should actually outperform a Core i5-2500K/Core i7-2600K at stock speeds.
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May 18, 2012 10:30:49 PM

WR2 said:
Core i7 950 @ 4.0Ghz should actually outperform a Core i5-2500K/Core i7-2600K at stock speeds.


Correct that it does, it actually out performs them at the same clock speeds when overclocked, I've tested it myself. This is what happened, I tried changing the settings like you told me. Fps stays the same, gpu % is 30-50. I noticed that the cards Memory is not running max like it should be, it lingers around 748 and moves up and down a couple digits here and there, I think this g.skill memory is bottle necking my card, It says there is 4gigs available and 2gigs free in task manager, could this be the problem? G.skill 1333mhz 6 gigs triple channel kit. The resolution is only on 720p.... 1280x720 as well..
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a c 203 à CPUs
May 18, 2012 10:41:06 PM

Gosu-Vu said:
I think this g.skill memory is bottle necking my card, It says there is 4gigs available and 2gigs free in task manager, could this be the problem?
I doubt it. Your VRAM is what the video card uses and it builds frames there and stores them until it sends them to the display.
Your system RAM is not being used directly by the video card.

Have you tested with other games? Crysis2 might be having an issue with the driver.
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May 18, 2012 10:46:04 PM

WR2 said:
I doubt it. Your VRAM is what the video card uses and it builds frames there and stores them until it sends them to the display.
Your system RAM is not being used directly by the video card.

Have you tested with other games? Crysis2 might be having an issue with the driver.


I have not tested any other games as of yet, diablo 3 has huge dips in fps as well on 720p.... i just monitored everything on crysis warhead and it seems like its the card itself, wonder if its faulty.... resolutions isn't effecting the amount of fps, 800x600 is the same as 1280x720, 40-50 fps.. Cpu doesn't even break a sweat, barley goes above 20% usage, tons of memory left too while gaming, so it don't think its either of those. I'm thinking this card might be junk.

"quick edit" : Just bought metro 2033, going to download it now and see if it struggles as well... I'll give you an update.

Here's a screenshot of the card overclocked to max sliders in game on 720p, game is fully maxed with vsync off, I think it's performing properly, it might just be driver issues at the moment. For some reason on all the games it never automatically adjusts the graphics to max settings either, always 1 or 2 settings lower. Dunno if that might have anything to do with something. Crysis 2 sets it to gamer, Diablo 3 never had shaders on high, dunno.
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a c 203 à CPUs
May 18, 2012 11:14:49 PM

What is the native resolution of your monitor?
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May 18, 2012 11:16:23 PM

WR2 said:
What is the native resolution of your monitor?


I'm using a small gaming t.v atm, its native resolution or recommended is 1024x768. I always just put it on 720p because it has 60hz refresh rate at 720p as well. Going to order a nice asus monitor at the end of the month to replace it.
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a c 203 à CPUs
May 18, 2012 11:18:57 PM

There is some extra overhead for the GPU to do figuring out how to squeeze 1280x720 logical pixels and display them on 1024x768 physical pixels.

Have you tried running your 800x600 in window mode instead of full screen mode?
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a c 203 à CPUs
May 18, 2012 11:19:43 PM

Better yet - can you run any of those games in 1024x768 resolution?
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May 18, 2012 11:20:10 PM

WR2 said:
There is some extra overhead for the GPU to do figuring out how to squeeze 1280x720 logical pixels and display them on 1024x768 physical pixels.

Have you tried running your 800x600 in window mode instead of full screen mode?


No i haven't tried that yet, what would that show?
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a c 203 à CPUs
May 18, 2012 11:21:15 PM

Gosu-Vu said:
ts native resolution is 1024x768.
I think this goes a pretty long way explaining why your GPU isn't working too hard ATM.
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Best solution

a c 203 à CPUs
May 18, 2012 11:22:36 PM

It would stop the GPU having to calculate which of 1024x768 pixels to turn on and off to simulate 1280x720 resolution.
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May 18, 2012 11:26:16 PM

WR2 said:
It would stop the GPU having to calculate which of 1024x768 pixels to turn on and off to simulate 1280x720 resolution.


I ran crysis2 800x600 in window mode, pc isn't even coming close to breaking a sweat but yet still only 40-50 fps, i'll try metro 2033 when its done downloading in the next hour and see, Looks like crysis 2 is a driver problem.
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May 20, 2012 5:12:30 PM

WR2 said:
It would stop the GPU having to calculate which of 1024x768 pixels to turn on and off to simulate 1280x720 resolution.


Save to say everything is working fine by the looks of it. Metro 2033 is pulling amazing frames on 720p completely maxed out with AA x4 and everything else cranked up except physx. Hitting up to 100 fps in some spots, 50-80 everywhere else.
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May 20, 2012 5:14:44 PM

Best answer selected by Gosu-Vu.
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