Dark Souls - Comments from Namco

It's hard to get a good grip on what Dark Souls for the PC will actually play like with the dev team being adamant this is a straight console port with no optimisation for the PC. PC Gamer has some comments from Namco Bandai that suggets the raw power of some PC setups might alleviate the frame-rate issues at least:

Will it be worth putting up with poor performance to access the new areas? Saguchi suggests that the severity of the port problems will vary depending on the power of the player’s machine. “While the game hasn’t been tweaked itself, because it’s very difficult to tweak, but for people who play on the PC, which is arguably a lot more stronger format to work off of, it does improve the framerate issues,” he said.

“I think it’s really inherent on the person’s setup in terms of what kind of power the game can use. So it’s a little bit more difficult to determine, it really kind of shifts along with the processor that you’re selling.”

“It’s definitely going to be better than the console version,” he added later. “It’s just that in terms of what PC gamers are maybe looking at in terms of what they usually play, it may not match up.”