Yep. Same here..
Played most of the day yesterday with no problems. This morning my computer switches off suddenly (as if you just pulled the power cord from the wall). Start back up and load SimCity.. play for about 10 minutes and CTD. Updated GeForce drivers to 3.14 and still having problems.
Some info from DxDiag:
Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.130104-1431)
System Manufacturer: Asus
System Model: P8Z77-V-PRO
BIOS: BIOS Date: 12/19/12 19:54:34 Ver: 18.05
Processor: Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz (4 CPUs), ~3.4GHz
Memory: 8192MB RAM
Available OS Memory: 8138MB RAM
Page File: 2432MB used, 13840MB available
DirectX Version: DirectX 11
Card name: NVIDIA GeForce GTX 660 Ti
Manufacturer: NVIDIA
Chip type: GeForce GTX 660 Ti
DAC type: Integrated RAMDAC
Display Memory: 2732 MB
Dedicated Memory: 3015 MB
Shared Memory: 3812 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Hope EA can get this resolved soon. I'm still wondering why this game is only playable while online.. Played simcity since the 90's on a Tandy 1000! Depedning on game servers for this game is just rediculous..