Major FPS drop/screen stuttering after upgrading video card to GTX 770.

[ntall1]

If.. Power is correctly supplied to the card, drivers were removed and installed correctly, and the card is not overheating. I seriously suggest replacing the card. Get an RMA, and get a new card sent out to you. Some cards are just bunk on arrival its not uncommon.

If you have not tried already. Install a program called SpeedFan. This will monitor the temps of your GPU, and CPU. It is possible that the card itself is fine, and the issue is with the CPU and RAM. The odd thing tho is that if it was a power issue or an overheating issue, you would most likely be seeing the video card driver crash often, or your machine just mysteriously shutting down. Once again leading to the idea of a bunk card.

(No malware on SpeedFan. Also read everything when installing free software from the internet. 99% of it will install useless crap if you don't unchecked those boxes in the instal. It helps to pay attention to what you are installing on your computer.) Too much useless crap from the internet can also start to cause mystery issues when piled up too high.

[Avlia]

I'm getting this same kind of odd stuttering with my GTX 660 I just purchased. Every 5~7s it just hangs for half a second. Otherwise it runs completely smooth and barely even tips over 50c.

I got an odd message about "Windows performance being low" which made me turn Aero off right before I notice the hanging.

[remidi]

This happened to me the other day. I turned off the PC and reseated my GPU. Sometimes its the simple things. My benchmark results didn't change.

[Laraul]

The reason I asked for the GPU temperature is that any processor unit that over heat to around 90+ degrees will decrease the performacne of the card. Same thing applies to CPU. (that's the reason why people can't overclock a laptop because they can't fan out the heat with the limited space within the laptop casing.)

As the temperature of the GPU increases, it regulates the temperature by adjust the cooling fan speed. I've certainly seen no desktop GPU regulate temperature by adjusting it's clock speed. If the GPU should reach a temperature outside it's intended operating range, it will protect itself by immediately shutting the computer off.

It's doubtful it's the hardware. Does the problem exhibit itself within other 3D applications? What is with you people though. If a game isn't performing exactly right, you suggest the problem is due to the hardware? When it's limited to ONE GAME? I can only wonderb sacrificial goat offering the Direct3D Gods to appease their anger.

I experienced the exact same thing as him with a GTX680. I never asked for assistance because I knew people would suggest solutions that haven't any relevance. I noticed that a early build of the benchmark lacked the full-screen stutter. I don't know the cause of the stutter. But I know I can't do anything about it. And it runs fines it windowed/borderless windowed mode (which runs at the same resolution as full screen mode). Enough hog-sh*t seriously. I do not beleive what you put this person thru. Just admit you don't know why and the only solution people have is running it in borderless window mode. This problem is far less evident on AMD/ATI cards I've used.

I have observed one thing across all cards i've tested (ATI/AMD/NVidia). If you set the framerate to 30 and playback the intro video, it stutters considerably on all cards I've tried. Yet the video is smooth as silk when the game is run in a window, or borderless window mode. I can't help but feel that it's related somehow to the problem with the engine and full screen mode for some NVidia users.