Buy older graphics card with 4gb or newer with 2gb?

[Thirdeye]

Hi,

I have a question regarding graphic cards for my laptop. I use it for rendering with Octane of course. I have two options but uncertain which is the better for rendering in Octane. The first one is this:

NVIDIA GeForce GTX 760M - 2gb DDR5

and the other is this model:

NVIDIA GeForce GT 750M - 4gb DDR3


So the question is if I should get the older 4gb or a newer 2gb Nvidia? Whats the difference? If any one could help me a bit it would be fantastic! Thanks

[paviaden]

The difference in speed inbetween thoese two is neglible - however with only 384 cuda cores its not really anything that wil go anywhere fast

[xxdanbrowne]

Speed wise they are pretty close. The one with 4GB of ram can obviously holder a scene with twice the amount of geometry so you could go to a higher level of detail.

[Thirdeye]

Thanks for the replys,

I can see the GTX 760m has 768 cuda cores compared to the 384 cuda cores of the GT 750M. Is that a unnoticeable difference?

For archviz interiors is 2gb of vram enough?

[glimpse]

Thanks for the replys,

I can see the GTX 760m has 768 cuda cores compared to the 384 cuda cores of the GT 750M. Is that a unnoticeable difference?

For archviz interiors is 2gb of vram enough?

what resolutions You're going to work & how complex are Your typical scenes (poly counte, texture count & resolutions, etc..) some mange to work with 1GB cards..though You'll have much less of a headache wile having a bit of headroom to play with..- imagine workin' on a model..in preview resolution, everything is fine..once You get higher res - render will fail, 'cos it's not enough of vram - then at the last minute You'll start trying to optimise textrues & models..but higher resolutions will show more - & thus You need more complexity, more precise textures - so..from personal standpoint I'd go for largest memory I could afford & speed wise.. You can always way a bit longer, just..-it's better than not to be able to render at all =DDD..

[Thirdeye]

Aha - I'm getting wiser now! Thanks.

And the fact that one is DDR3 ram and the other is DDR5 dosen't play a role? I'm totally new to graphicscards!