Video Driver Crash Failed to Recover

So, I'm tanking an instance, we're on the final boss with about 15% of his HP left aaaannnndddd.....

Suddenly, my picture locks up, the sound stutters, and my PC crashes to Blue Screen:

Video driver crashed and has failed to recover.

This happens in virtually every instance I run (note, it's not limited to any specific instance or boss encounter). The computer restarts, and I log back into the instance. Sometimes the issue re-occurs, sometimes not.

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Relevant system specs:
AMD Phenom 9950 Black ed. Quad Core @ 2.6Ghz
Zotac Nvidia GTX 560
8 GB RAM
Windows 7 64 Ultimate

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What I have tried:
-update to most current Nvidia driver (335.23)
- roll back the driver to an earlier version.
- completely uninstall video driver, delete install files, clean registry, and re-install a clean copy of the driver
-play the game on the recommended Nvidia settings (ported in from the Nvidia GeForce Experience software)
- play the game on lower video settings.

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Information I have verified:
-the card isn't overheating.
-the computer isn't overheating.
-the card and system function normally in every other game I own (BF4 and Titanfall are probably the two most graphically-intensive that come to mind).

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This is literally the only game I experience this issue in.

I am open to suggestions on how I might go about resolving this. Thanks in advance.

i am also having the same issues.

Relevant system specs:
Intel Core i5 - 3570K @3.40Ghz
AMD RADEON HD7850 2GB DDR5
8 GB RAM Kingston Hyper x
Windows 7 64 Ultimate

all the above has been verified by OP also done but still the same. Only this game experiences this issue.

Please help on solving this issue. thanks a lot

since the lastest crash mine has been doing the same. alot of times it recovers. its brand new hardware. i just replaced everything but the case and power supply. only this game. if I can't play I won't be paying another month.