I might overclock further down the road, however initially I wasn't planing on doing any overclocking due to have very limited experience with it. Which is why I was drawn to the 670 as its pretty powerful out of the box and then you have the ability to overclock down the line.
Where as with the 7950 is looks like you pretty much need to overclock it from the box to get it near what the 670 does. I'm quite happy paying the bit extra for straight out of the box usability.
Also I'm assuming that if you need to overclock the 7950 to match it to the 670 and judging by the above list when/if I get around to overclocking the 670 I assume it will surpass the 7950.
Where as with the 7950 is looks like you pretty much need to overclock it from the box to get it near what the 670 does. I'm quite happy paying the bit extra for straight out of the box usability.
Also I'm assuming that if you need to overclock the 7950 to match it to the 670 and judging by the above list when/if I get around to overclocking the 670 I assume it will surpass the 7950.