2gb or 4gb graphic card for ddr3?

[kirk7]

what i better to choose,speed or bigger memory? i have 8gb ram and motherboard
GA-M68MT-S2P
i would be greatfull if you help,i am not an expert.thanks

 

[robax91]

2GB should be enough for most modern games. 4GB is for large resolutions or very high AA or AF settings or multi-monitor. I don't recommend 4GB unless you know you need it.

 

[kirk7]

there are so many 2gb,so (without know much) i thought bigger memory,never know and i went for MSI GeForce GT640 4GB.
what is the more important? memory and core clock?
i want to support CUDA PhysX and 3D...
any suggestion?

 

[Avro Arrow]

I would recommend at least 3GB if you can afford it. The newer games coming out eat up VRAM like it's going out of style. I think that 2GB should be the bare minimum but remember that if you ever use a multi-GPU setup, you will be severely limited by a 2GB card because your processing power will double but your RAM will remain at 2GB no matter what. I found that the Radeon HD 7970 3GB is a happy medium. A 3GB HD 7950 will do the same. Having said that, it's a far better thing to have less of GDDR5 than lots of DDR3. Video cards with DDR3 are relatively weak anyway so you won't exactly be playing games maxxed out with one.

 

[kirk7]

thats a ddr5,can i use it in the motherboard i gave you.sorry,but my pc knonllege is not very good!

 

[kirk7]

my pc is a dual core 3.0

 

[kirk7]

can i use ddr5? my pc is dual core 3.0 (not much) my motherboard is
that GA-M68MT-S2P