At stock a 680 was around 5% faster than a stock 7970. Once overclocked 7970 was 5% faster.
But it isn't faster. Calculate each benchmark yourself and find the percentage difference, not FPS difference.
HD7970 is very good at 1200mhz, but it's not that fast at stock. Everyone knows it but you. Countless reviews show it getting stomped all over by as much as 20-30% in modern games by the 680.
Here is a
GTX670 OC Review ($430 card) that has no problem beating a stock 7970. Here in the US/Canada, HD7970 costs almost anywhere from $50-100 more than a GTX670. But there is a caveat: The $450 Sapphire Dual-X is prone to coil whine. The next cheapest HD7970 that reached
>1200mhz is the
$485 HIS.
GTX680 is not just 5% faster than HD7970. On average it's more like 8-10%, but what makes the situation far worse for the 7970 is that the performance delta is more like 15-20% in more recent games (the reason the average gets brought down is because older games such as AvP and Metro 2033 allow 7970 to hang in there). But most people today buy the card to play modern games, not AvP, which isn't even a great game to begin with.
And when it comes down to SKYRIM and BF3, it's not even close. If MSI Lightning, HIS, and Gigabyte 7970 OC were $450, it would make the 7970 competitive. But not everyone wants to gamble with the Sapphire Dual-X and then be stuck with coil whine.
HD7950 is so far behind, it would need to be overclocked 40-50% in some popular games just to catch up. While a lot of us like overclocking, not many people are going to spend $400 to take a gamble that their card will reach the necessary 40-50% overclock needed to match a
$400-$440 card out of the box. And that's before Direct CUII 670 drops which is one of the
quietest high-end GPUs ever made.
I can totally understand users who run a lot of distributed computing/programs that rely on double precision, use specific programs that fly on the 7970 such as LuxRender, do bitcoin mining, then HD7970 is still great. For gamers, AMD would need to launch 1.05ghz+ versions with after market cooling at $450 to make it justifiable over after market 670s.
The first
> 1Ghz HD7970 from AMD is a reference model with a loud fan blower for almost $500. That's overpriced.