If you mean for your stated use, SB (K), and as a new purchase then neither.
The ASRock Z68 Extreme4 yields a higher than necessary vCore and the ASRock Z68 Extreme7 Gen3 does use the NF200 and will work fine, but the ASUS P8P67 WS REVOLUTION would be my choice.
If someone starts out day 1 with 1 GPU I expect someday (2) two GPU's is a possibility -- so out of sheer habit I plan ahead in those situations GPU +1 (unless day 1 is 4-WAY).