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Question - Gaming Resolution

Last response: in Graphics & Displays
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August 1, 2009 10:14:43 AM

Okay so i was playing prototype on my 20 inch monitor with a Geforce 9800 GT at 1440X900 at maximum settings the other day.

I decided to lower the resolution to 1280 X 720 for some extra performance but instead my FPS decreased by 2. I then tried the max resolution which is 1680 X 1050 and my FPS increased by 1 compared to when i was using 1440 X 900.

So then i did some benchmarks ,

Cs Source :

1440 X 900 = 115.52

1680 X 1050 = 119.12

Passmark :

1440 X 900 = 29.4

1680 X 1050 = 44.1

Can someone please tell me what is going on , why is my FPS increasing when it should decrease, and its like that with every other game ....

PC spec :
Windows 7 Ultimate
3GB DDR2
Geforce 9800GT
AMD X3 8450
500GB HDD
August 1, 2009 10:48:50 AM

how did you measure FPS?
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August 1, 2009 11:31:09 AM

Well it depends , but i always get above 40 FPS at max settings
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August 1, 2009 1:42:46 PM

I would think that it is because @1280x720 the card is doing less work due to the lower pixel count.
And I could be wrong here but at 1690x1050 (the native 20 inch resolution) the monitor is taking over the scaling duties and freeing up the video card a bit. Its generally best to run at the native resolution for this reason.
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August 1, 2009 4:52:02 PM

Oops your right. I misread the original post.
I thought it said increased at 1280.
Please disregard.
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August 1, 2009 5:22:01 PM

Id go with the game benches, which could just be margin of error, and youve reached your cards or cpus max output.
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August 1, 2009 9:11:31 PM

But if i reached my cpu's max output , how come i get more fps when playing at 1680 x 1050 than 1440 x 900, shouldn't the fps be the same .....
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August 1, 2009 9:51:02 PM

Wow, like 10 posts because you cannot figure out a 2 or 1 FPS difference when you change your resolution. I think we all need to get out of the house and go do something.........
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August 1, 2009 10:16:45 PM

jitpublisher said:
Wow, like 10 posts because you cannot figure out a 2 or 1 FPS difference when you change your resolution. I think we all need to get out of the house and go do something.........
I would agree for the CS Source benchmark, but his Passmark score has a difference of ~50% (30 vs 44).

Have you tried to run each test multiple times? You never know if something might have started in the background and messed up the test.
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August 1, 2009 10:59:01 PM

I always say, if its close to what others do, and Im happy with the results Im getting playing games, whats does bungholio marks really mean?
If something in his system is maxed out, he will run the same fps, and 2-4 fps of 114 fps is within the margin of error, even for the pros
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a b Î Nvidia
August 2, 2009 12:27:42 AM

Just to speculate, I think there may be two factors at work.
1) If the vga card is strong enough that the cpu becomes the limiting factor, then you will not see much difference changing resolutions.
2) The closer the game resolution is to the native resolution, then there is less work needed to adjust the output.
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August 2, 2009 12:34:38 AM

When outputting to a LCD (no clue if it applies to old CRTs as well), what part of the computer does the "resolution corrections" between the configures resolution and the LCD's native resolution? CPU, video card, LCD?
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August 2, 2009 4:10:02 AM

OK, I'll say this. Drivers are tweaked at/for certain resolutions. How many benches from a review where its shows the same card on the same setup against other cards same cards same setup, where it doesnt scale properly from 1 res to another? Especially on just released cards, with brand new drivers. Usually the reveiwer leaves us with something like "for some reason, this card doesnt scale as well at blank res, as it did in the lower and higher res" and never really addresses this.
If somethings maxed out, then the most common res was the one most tweaked, and would show possibly this small variation, which is 16x10 as the highest by a small margin. So to me its a driver issue
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August 2, 2009 4:24:52 AM

From PassMark:
Different Video Card Device Drivers & settings
"Different versions of Video Card drivers can also have an large impact on the result. In some cases some of the PC's might have had configuration issues leasing to sub-optimal results."
http://www.videocardbenchmark.net/graph_notes.html
Im assuming leasing is a spelling error and is meant "leading"
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