Diablo 3 fps issues (upgrade HW request)

[shamental]

Hello, I'm having really bad fps drops while killing a lot of mobs together, I go from 60 to 10 fps and I need an advice to what to upgrade for my pc and why.

I have this spec:

Mainboard ASUS M4A785TD-EVO chipset 785

CPU AMD athlon II X3 435 @ 2.9ghz

Ram 8gb DDR3 1333mhz bus

Gigabyte Ati radeon HD 5770 graphic card

HDD 500gb.

I bought this pc from early 2009 and I have only upgraded so far the ram, from 4 to 8.

Any pros, what should I upgrade to reduce the fps drops.

Thanks

Power supply 430watts thermaltake.

[Leonard McCoy]

Your biggest upgrades will be either a new processor for video card. For something like Diablo a new processor is probably best. I have the same mobo you do and went with the phenom II X4 black edition. It's easily overclocked and runs the piss out of D3.

[Butler to Baby Sloths]

Upgrade the CPU. Something like the Phenom II x4 mentioned in the post above would be a good choice. DIII isn't particularly hard on the graphics card.

[shamental]

Thanks for the reply so far, I will try to get some prices.

[hatsune]

I run the same 5770 and have no problems. I'm using the 1st gen i5-570.

[JosephStylin]

Buy a 16gb USB thumb drive and have windows do its caching on there, it's an incredibly cheap upgrade that made a world of difference on my 3 year old desktop, honestly was very surprised at the improvement.

http://en.m.wikipedia.org/wiki/ReadyBoost