Guild Wars 2

Try lowering the culling settings and turn shadows and reflections completely off.
I will not tell you to buy an Intel processor because the game SHOULD run fine on your specs.

Sylvari.6083:

GPU: XFX RADEON HD 7870, 1000M DD Edition, 2048 MB DDR5, miniDP
CPU: AMD FX-6300, 6 Core, 3,5 GHz (Piledriver) Sockel AM3+
RAM: 8GB

Can provide more info if required.

with the simple info you posted, it should be running fine.
however there are various things that you omitted.

1. Windows version (Vista, 7 or 8…32bit or 64bit)
2. Driver versions for your Video card
3. Hard drive (and how much free space is on it)
4. do other games work as expected?

One thing that I have found is slow/dying HDDs cause gaming performance issues. and unless you know exactly what to look for you would never know about it.

download hdtune (google for it, download the free version)
install and run it, goto the health tab and make sure there are no Yellow or Red lines. and that you powered on time is less then 20,000 hours (the number is in hours)

if any of the above does not match – replace the hdd

now – goto the performance tab, run a bench mark. it should be 60MB/s-120MB/s for standard hdds on UDMA-5. If the HDD is running slow (normally 25MB/s-45MB/s) it’s time to replace the hdd.

Next – CPU speed/HT(AMD)/FSB-NB speeds, and Memory Speeds
download CPU-Z and run it. You need to make sure your CPU is running at the expected Clocks when you are running your game(s). AMD uses p-stats to control the heat on the CPU. Meaning when its not under load it will lower the clock of the CPU to cool it off when its not being taxed. If your system is set to ‘power saving mode’ the CPU will always run at low-middle speeds, and never high (or Turbo Core for some of the APU’s they have). CPU-Z is the best way to verify this. Run it, start up GW2 and when you are in the game tab back to CPU-Z and see what the clock rating is for the CPU. If its not the expected clock (3.0Ghz or whatever it should be) make sure your windows active power settings is set to Balanced or High Performance and not ‘power saving’.

CPU-Z can be used to verify the NB/HT link speeds as well as the RAM speeds. SPD tab will show you NB-Link speeds (should be 1800-2400) Memory Speeds (its always 1/2 of the rated speeds, so 665.7 for 133Mhz Ram, 800 for 1600Mhz ram…ect) and the CPU summary tab will show you the HT Link speed (2000-2400).

Anyway, that is enough info to start digging into your system’s issues and to give the forum community more info to help you with (once you reply).