So far as announcements like "I think the game will need at least a GTX 780" are nothing more than your own belief and you make them without anyone intending to take them seriously enough to act on them, go ahead, it's not my money nor anybody else's but your own that you're spending.
But there's a harmful bandwagon effect at work here, and that comes about when posts like that serve to convince people who don't know better and don't have money to burn that they can't run the game without spending hundreds of dollars on upgrades, or persuade people to spend hundreds of dollars for hardware you do not know they need or give up on the game and not consider buying it. That's a huge disservice to other members of the forum and any guests who come in and read your posts.
So, before I have to ask as a moderator, I'm going to ask politely one more time. Don't try to convince anybody that you know any facts about what the system requirements for the game will be, and in particular don't try to convince anyone that they must have big iron to play this game.
I feel like I'm being called out by this post.
Again, I have to say, to be clear, that I didn't say that TW3 will not be playable with anything less than sli gtx 780/880. TW3 will be most certainly playable with any PC rig out there (at appropriate settings level). I'm confident that the guys at CDPR will make TW3 scale beautifully.
When you consider TW2 - that game had an excellent scaling capability (it even ran on a 200$, 2 year old notebook). But when I set everything on max settings 1080p with gtx 770 and i5-2500k @ 4.5GHz i still get an average FPS of 44 (min 22 max 58 FPS). My point in previous posts was that if and i say IF the guys at CDPR implement graphical fidelity as presented in the TW3 - VGX Trailer then to run the game at max settings you will need a monster of a PC (probably sli gtx 880 or 780 if you more like that). And again to be clear, if the devs implement the most demanding visuals you will still be able to play the game on lower settings (for example: low, mid or high) and it will still probably look good.
Now, regarding my knowledge or lack of it concerning system requirements, I'm not stating that I know for a fact what the system requirements for the game will be. Those were my informed opinions based on what is out there regarding information about fur tech.
And anyone with half a brain knows that the more demanding the visuals are the more money you have to throw at your computer to run it.