From time to time i see weird screen tearing, it diagonal and only appears in left upper corner of the screen. It makes taht corner tear into two triangles. it shows regardless of vsync off or on. Unfortunally I can't capture it in action but it can be reproduced but rapidly clicking Esc to get to pause meniu and out.
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It's been over a year since the question was asked, please respond to the question or attach the files requests and keep the ticket updated.
I know this has been a long time, but just in case anyone else has this issue:
Screenshots are not something you can get for screen tearing. You'd need video of the physical screen. The main cause for it is just a de-sync in the frame. Turning on VSYNC in Minecraft will add stutter to it making it worse with that level of hardware. The processor listed runs slightly worse than an i5-2400 which happens to be the one I'm using. Having a good video card is not as important as having a good CPU with this game (Though I do wish for better graphics acceleration in the future) but even the one listed, though good for its time, is not as good at multirendering and lighting detail as the 750 ti - which I am also using.
My solution to this, without upgrading hardware at the time, would be to turn off VSYNC, and set the max frames to 30 or 60. Runs much smoother with much less headache. Also, if you are using a television as a monitor, they run at a slightly different refresh rate (29.97 fps for example) so you'll get screen tearing regardless. I doubt you are with a laptop, but you never know. Many laptops have external display outputs.
You can always use sites like Userbenchmark to compare performance, especially handy when looking at mobile variants of GPUs and CPUs as they are often heavily downscaled to save on power draw.
Screenshot?