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17seconds
Champion
- Jul 27, 2010
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My original plan was to wait a long time to upgrade. The GTX480 is really a great card and there was originally no reason to get rid of it. All the same, the main drawback to the GTX480 is the fan noise. For me, it is under control and not a problem, but I read the reviews of the GTX580 showing it to be quieter than even some of the 460's, 6850's, 6870's and I was intrigued. Well, as it happened, my card suddenly became defective; it causes the PC to shut down as I exit games and runs hotter and louder than usual. (I suspect it has something to do with me taking off the heatsink and changing the thermal paste.) So I have to RMA the card, a process which will cause me to be without a functioning PC for a couple weeks. My wife was not happy to hear that, and so I decided to buy a newer upgraded card, then I will RMA my 480. When the 480 is returned, I plan to sell it. So circumstances have forced me to upgrade long before I intended. But I'm not complaining!
Regarding my VSYNC issues:
It seems that Vsync locks the FPS in games to 60 if the fps is greater than or equal to 60, and drops it all the way down to 30 if the FPS drops below 60, even down to 59 or 58....
this in turn causes "lag jerks" in games because of the sudden drasic FPS drop, and often jumps right back up to 60 again almost instantly...
This occurs in DX10 and DX11 games. I have noticed it in Crysis, Metro 2033 and Heaven Benchmark.
This does not occur in DX9.
Can anyone confirm if this is normal behavior or my drivers failing?
It seems that Vsync locks the FPS in games to 60 if the fps is greater than or equal to 60, and drops it all the way down to 30 if the FPS drops below 60, even down to 59 or 58....
this in turn causes "lag jerks" in games because of the sudden drasic FPS drop, and often jumps right back up to 60 again almost instantly...
This occurs in DX10 and DX11 games. I have noticed it in Crysis, Metro 2033 and Heaven Benchmark.
This does not occur in DX9.
Can anyone confirm if this is normal behavior or my drivers failing?
Mousemonkey
Titan
- Sep 3, 2006
- 59,462
- 17
- 92,965
sorry about that, i'll behave 🙁
My friend kindly leant me his i7 720QM / Geforce 460M laptop to test my apparent vsync and flash video lag issues.
It seems that GPU-Z was causing minor system lag (both 0.48 and 0.49), and it seems that VLC caps FPS to that of the video, causing the video to appear to be laggy. windows media player however does not do this.
I noticed that framerates in DX10 games on his lapto (with older driver versions) were also sticking to whole number fractions: 1/1, 1/2, 1/3; 60 fps, 30 fps, 20 fps, <20 fps. I cannot find any documents to support this theory, but from the tests i've done this seems to be the case.
I have stress tested and benchmarked my system as vigerously as possible and can only conclude that the issues i have experienced are due to my current drivers. When i get a chance i will roll back to previous versions to see if my performance improces.
Thank you for your help everyone.
Quick update: It seems that the issues i have experienced are GPU related (green artifacts), and are only appearing in DX10 / DX11 games. The issue does not occur while playing DX9 games at all.
Does anyone have any idea if this issue is indicative of a direct hardware fault?
Does anyone have any idea if this issue is indicative of a direct hardware fault?
Mousemonkey
Titan
- Sep 3, 2006
- 59,462
- 17
- 92,965
- Status
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