Is this cpu holding my computer back?

[Daichin]

Hi,
I've been looking into upgrades for my rig recently. My question is, in terms of gaming performance, is this cpu holding my computer back? What is the bottleneck at the moment?

I asked about upgrades a couple of weeks back but the specifications of my budget has since changed (monitor broke), and I'm now wondering what parts I should aim to upgrade. At the moment I'm thinking it's the CPU, but I'd like to get a second opinion.

Specs are:

NZXT M59
Athlon II X4 620 @ Stock 2.6ghz
DFI Lan Party 790FXB-M2RSH AM2+
4GB G.Skill DDR2 2400 @ 800mhz
2 x Sapphire Ati Radeon HD 5750
Western Digital 500gb + WD 320gb
WinPower 700w
Stock AMD cooler

Thanks in advance!

 

[Daichin]

What do you use your computer for or want to use it for , also what sort of budget do you have.

with these answers we can help a lot more

It's used essentially for gaming. I don't do anything more resource intensive than that.

I'm not sure about the budget but let's call it £180.

 

[Daichin]

Thanks everyone!
I'm definitely not too keen on the Winpower PSU and that is currently what is holding me back from overclocking. I bought the computer about two years ago from a competitor and they actually swapped the PSU I ordered for this one claiming it was an "upgrade" simply because it had a (slightly) higher wattage. I didn't notice this until only a few months ago. This is what you get when you don't order from OCUK, I guess.

Apparently the motherboard I have currently supports a 955 and I can presumably put a healthy overclock on it with this board, a decent cooler and a new PSU. I'm guessing it's pretty much a waste of money to invest further in this particular board though?

EDIT:
I'm playing a majority of the newest releases and my resolution is 1920x1080.

 

[Daichin]

Thanks a lot for the help everyone! I’m thinking I’ll start out with a new cooler and a new psu - I can look into graphics card updates later.

I’m not 100% sure about the coolers:

* Gelid Tranquillo CPU Cooler (Socket 754/939/940/AM2/AM2+/AM3/LGA775/LGA1155/LGA1156/LGA1366)
£25.99
(£21.66)

* Cooler Master Hyper 212 Plus CPU Cooler (Socket AM2/AM2+/AM3/775/1155/1156/1366)
£24.98
(£20.82)

* Corsair A50 High-Performance CPU Cooler (Socket AM2/AM3/LGA775/LGA1155/LGA1156/LGA1366)
£24.98
(£20.82)


Which one of these would be better? They all seem to be around the same price and have good reviews. Would any one of those be ok? Also, the back comes off my computer behind the motherboard and it has a cut out behind the cooler. Are the back plates for these coolers very large or should I be able to fit it without taking the whole thing apart?

I’ve never overclocked anything before, so I’m not too sure about that, either. I’ll probably start a new thread in the overclocking section when the components arrive, but, for the time being, I’m wondering what you would actually have to do to break a processor/motherboard by overclocking? I’d rather not break anything.

Thanks once again for the help - it’s rare to find such a friendly community on the interwebs.