Video TDR Failure
The top two reason for these types of errors are;
Incorrect memory timings or voltages and
Insufficient/problematic PSU (Power Supply Unit)
and the third being of course any overclocking (CPU, Memory, GPU)
If your machine doesn't Blue Screen with the old video card in it then I would suspect that the new card may very well exceed your current Power Supply's ability to cope with the added demand.
On the other hand, your memory timings look a bit out of sorts.
Currently showing 8, 8, 8, 20, with a command rate of 1T, when I would expect something like 9, 9, 9, 24 1.5V with a command rate of 2T
You can, assuming all modules are the same as the single SPD tab image you provided, try enabling XMP mode in your system's BIOS utility and see if that stops the blue screens, or else manually set them as I've suggested above.
Code:
BugCheck 116, {fffffa8007e4b4e0, fffff88004408768, 0, d}
Unable to load image \SystemRoot\system32\DRIVERS\ [COLOR=#ff0000][B]atikmpag.sys[/B] ,[/COLOR] Win32 error 0n2
*** WARNING: Unable to verify timestamp for [B][U][COLOR=#ff0000]atikmpag.sys[/COLOR][/U][/B]
*** ERROR: Module load completed but symbols could not be loaded for [COLOR=#ff0000][U][B]atikmpag.sys[/B][/U][/COLOR]
*** WARNING: Unable to verify timestamp for win32k.sys
*** ERROR: Module load completed but symbols could not be loaded for win32k.sys
[COLOR=#ff0000][U][B]Probably caused by : atikmpag.sys ( atikmpag+8768 )[/B][/U][/COLOR]
[COLOR=#ff0000][U][B]VIDEO_TDR_FAILURE (116)[/B][/U][/COLOR]
Attempt to reset the display driver and recover from timeout failed.
Arguments:
Arg1: fffffa8007e4b4e0, Optional pointer to internal TDR recovery context (TDR_RECOVERY_CONTEXT).
Arg2: fffff88004408768, The pointer into responsible device driver module (e.g. owner tag).
Arg3: 0000000000000000, Optional error code (NTSTATUS) of the last failed operation.
Arg4: 000000000000000d, Optional internal context dependent data.
The error seems to point at your current video driver installation, which I suppose could be corrupt and if you have any reason to suspect that, that is the case, then use DriverSweeper from here
Phyxion.net - Driver Sweeper very carefully to remove it and perform a clean install from a current known good downloaded source.
I suspect however that the involvement of atikmpag.sys, win32k.sys and dxgmms1.sys and dxgkrnl.sys are more the effect than the actual cause.
Check the specs on your PSU (per rail) should be a tag on the side with information regarding available power in watts and make sure it's up to the task (considering other devices that it also has to power)
AMD Radeon HD 7850 and 7870 review
And try to get your memory timings and voltage more inline with 667Mhz conventions. Check with manufacturer for detailed specs.