Laptop: 980M-4GB OR 880M-8GB ...Vram question

[lyubomirhristov]

I a going to use the laptop ONLY for 3D Max (Vray-RT) and Premiere, After Effects.

 

Asus G751JY -

GeForce GTX 980M

4gb 1536 CUDA cores

or

Asus G75JZ -

GeForce GTX 880M

8GB

1536 CUDA cores

 

Does 880M will perform better in the software above because of the more Vram?

[beestee]

I am pretty certain the 8xxM and 9xxM series are both based on the same architecture (Maxwell). I would go with higher capacity if they are both GDDR5. If they are not both GDDR5, then I would look for benchmarks comparing them.

[Nikolaos M]

The 880M is based on the 28 nm GK104 chip (Kepler architecture).

[Dimitris Tolios]

Both are impressive cards for a laptop to pack, but outside of GPGPU neither of the two have the grunt to push 4GB of RAM in viewport. Both are GK104 Kepler based with 256bit RAM bus - think GTX 680 with lower RAM clocks (to make it fit in the thermal envelope of a laptop). The 980M is a refresh of the 880M, with a tad higher base clock

 

Perhaps the 880M 8GB one will be able to render more complicated scenes in Vray RT, but that's it.

It won't do really better in 3DS viewport, it won't render faster in RT (in fact the 980 might be a tad faster, but not in a meaningful way).

[Nikolaos M]

THe 980M is Maxwell based http://www.geforce.com/hardware/notebook-gpus/geforce-gtx-980m/features

 

The 880M was a refresh of 780M (which was a refresh of 680MX). The basic difference between these models was the amount of vram and the core clock speed.

Edited May 1, 2015 by nikolaosm

[Dimitris Tolios]

You are right, that was a brain-fart counting SMM vs SMX units & core count on my behalf.

So the 980 will be hands-down faster than the 880 then. The 8GB 880 was a publicity stand imho, I don't think anything (including maxwell) can really use that kind of Vram for viewport over a 256bit bus.

[lyubomirhristov]

Thank you so much for the replays!

I have just one last but very struggling question that I just must get out of my system:

 

I may chose between tree laptops:

 

I can take very very cheaply one

HP Zbook 15 - Quadro K2100M 2gb 576 CUDA cores

That ordinary cost the same as

Asus G751JY - GeForce GTX 980M 4gb 1536 CUDA cores

Or pay extra for

HP Zbook 17 -Quadro K3100M 4gb 768 CUDA cores

 

Simular CPU and everything.

 

From what I was reading here and there GeForce will be the best choice -

especially for the program I use - 3D Max (Vray-RT), Premiere and After Effects

Is that true?

And is there really something really special in HP Zbook series... except the single fan that I think is kind of ridiculous.

Edited May 1, 2015 by lyubomirhristov

[joelmcwilliam]

On the website of adobe you can see what is supported:

 

https://helpx.adobe.com/premiere-pro/system-requirements.html

 

It is possible the latest and greatest gpu's are not supported and some gpu accelarated task you need just won't work. I'm not sure if there is a workaround. Maybe a google search will help. Or an e-mail to adobe or a post in their forums will get you wiser.

 

The amount of vram you need:

 

http://www.studio1productions.com/Articles/PremiereCS5.htm

 

If you are running premiere pro cc then open cl is also supported, so you can use amd gpu's with adobe cc software. I'm sure there will be an article on the web where someone has tested out the difference. Try: premier pro open cl.

[deadkaiser]

1. Adobe will be fine with the lastest GPU's AMD or nvidia (geforce)..... people always point to these list but they really don't mean much all they really say is that Abobe finally was bothered to tested X product on X graphics card and it worked..... nm the GPU if you want to be worried about something worry about the drivers.

 

2. Vram and Vray RT really not very knowledgeable on this however i'm told that Vray RT is meant to load all your textures (and geometry??) into it like it would with ur MB ram if you where doing a normal render.

I still don't fully understand this as i have seen plenty of complex seen successfully test rendered on a old GTX 480 which only has 1.5gb of ram however when doing the final render Vray would happily use tons more ram than just 1.5gb. I understand that RT at least back then would not load everything but I would have thought if both are required to load nearly all the textures (and Geometry??) that the amount of ram required would have been similar but obvious not since until recently most gpus really only had a few GB of memory yet people have been happily using RT for a while without some massive Vram discussion on forums like this..

 

So yes I would normally recommend just get the newest one (gtx 980m) no questions..... however until someone cant properly explain what Vray RT usage of Vram is, its had to recommend as it could seriously limit your scene complexity..... so Get the 880m 8gb unless someone can explain Vram and Vray RT..

 

And yes Geforce all the way imo