I've heard AMD is planning on releasing their GHZ edition 7970 to counter Nvidia; they also said 1.25Ghz was easily attainable now that yields have improved. Wonder if they'll be doing that any time soon, since the 670 is matching the stock 7970 blow for blow.
The 670 was also gimped for overclocking compared to the 680, so at least the 680 owners can get slightly higher clocks from their cards. The extra shaders also help in some games. The 680 carries a premium just like the 580 did at stock.
I'd like to see an OC roundup with vanilla 680/70&7970/50. With several models of each to show variability and what you can expect on average.
The 670 was also gimped for overclocking compared to the 680, so at least the 680 owners can get slightly higher clocks from their cards. The extra shaders also help in some games. The 680 carries a premium just like the 580 did at stock.
I'd like to see an OC roundup with vanilla 680/70&7970/50. With several models of each to show variability and what you can expect on average.