I am also struggeling with FPS issues.
I hardly played it on my old computer, as it was running slow (old specs: Core2Duo E6750, 4GB RAM, GTX 260).
But I thought i was due to my old hardware.
Now I got the old graphics card from a friend. It is “just” a GTX 470 but this should be sufficient.
I also upgraded my CPU to a FX 6300 with 8GB RAM.
I am aware this is nowadays not a high-end rig but it should be quite fine for a 2012 game.
The game runs quite smooth (60fps) when i run around on my own and do some heart but as soon as i go to WvWvW or play a world boss with lots of players around my fps drops to under 10 – even with all settings set to minimum.
I can run Assassins Creed 4 Black Flag with everything maxed with constant 30+ fps for example.
I know my hardware is still not high-end but it should be far enough to play GW2 on lowest possible settings.
And regarding the AMD single-thread stuff: i doubt it runs on single thread as 4 of my 6 cores run at 100% usage when playing GW2.
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