Finding the bottleneck

[David]

Since the last few weeks I`m back into boxing my old team and I`m back to beeing annoyed with my systems performance. For the last few days I`ve been looking into a reason why my computer is as slow as it is.

Currently I`m running a HKN setup with 5 characters. The 4 slaves have no details at all with a 800*600 resolution and my main runs at 1900*1200(or something like that) with all details off (only textures, spelldetails,enviroment,playerdetails and viewdistance on highest). I can move in a fairly good way thorugh dalaran and such but I`m having trouble with FPS in a place like HoR.

I thought I had a nice system but when I bought it I was on a budget(tho I had to buy it or there was no boxing) so I ended up with a 70-80euro videocard which I think couses problems.

My system is as follows

AMD phenom 4x 3gig
4x2gig ddr2(think 1066)
9800 GT 1gig (think colorful or something, shit brand it is)

I`ve ran a test with some random test tool last saturday on my videocard and it scored a 149 where the score of the card should have been between 250-600.

Am I correct when I think my grapicscard is a bottleneck in my system, I`m pretty sure that my mainboard, cpu and memory should be more then enough, even tho it isn`t i7 or really expensieve.

I`m also having problems with games like SC2, MW2supreme commander (niceesters) which are on lowest details and still run shit. I actually don`t play much more then wow on my system besides testing with some games sometimes.

I was thinking of putting in some cash and buying a worthy grapics card however I`m wordering in what way it will fix my problems. I don`t want to spend a lot of money and not improving a bit.

This is the one I wanted to get:
Sapphire Radeon HD 5870 TOXIC 2,048MB

I was hoping to do some 10boxing in the future as well but I guess this system alone won`t do it. I think that I cannot upgrade my mermory any higher. I only have 4 slots and I haven`t found any ddr2 higher then 2gigs a slot.

Anyone who had similar problems or anyone who has any idea what my bottleneck might be? I`m pretty sure it should run wellm it`s not like it`s shit.

Thanks in advance.

Edit:
- I did a 3dmark06 this weekend, I scored just over 5000points there. I have no idea what good is or not but I`m pretty sure that 5000points is shit.
- I`m trying to get going with ISboxer but it runs terrible. Even when I turn of the options for the instant window swapping. I think even the mouseoverhealing slows and lags like hell