Bad Computers

[Ashley]

I use a 2.13ghz dual core, 500gb 5400rpm HDD, 4gb RAM, Windows 7 64bit, and some 512mb dedicated graphics and I can run 5 fine.

Theres some places where I wouldn't dare go, such as Org on a busy afternoon. Some areas lag a little though but PVP and general questing is fine.

My Q6600 OC'ed 3.00ghz, 6gb RAM, 1gb graphics, 250gb SATA II was able to successfully run 10 warlocks at once in elwynn. These were only trial accounts and I never managed to upgrade them fully (was just testing it out).

[Akoko]

Really? Only two WoW instances? I find that really hard to believe unless your computer is 10 years old.

I can run four instances of WoW on lowest graphics on my average laptop. It's not even a gaming laptop. I suspect you should be closing some background processes before turning on WoW. Try using Game Booster for this.

[universal]

be aware that the hardware requirements slightly increase with each addon