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pitrak
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Joined: 22 Sep 2015
Posts: 28
Location: Belgium

PostPosted: Sat Mar 25, 2017 2:46 pm    Post subject: AC20 laptop GPU - once more :) Reply with quote

Hi,

I've been in the market for a new laptop for a while now. I currently have a BTO (local Clevo-based brand) i7 laptop with a geforce gtx 560m that is getting 6 years old!
I was waiting for wider availability of Pascal cards (geforce 1050 and up) as I thought AC performance would be a lot better than the Maxwell generation card. It took Graphisoft a while to publish test results on the Pascal cards, but today I noticed they were published.
http://helpcenter.graphisoft.com/technotes/video-cards/recommended-video-cards-for-archicad-20/
I've compiled the quadro and geforce laptop results in the image.
For some reason they did not test the GTX 1050, while this card is used widely in laptops such as the dell XPS15. Maybe they were on a budget, no idea.

As you can see, in medium sized projects, the GTX 1080 with 8GB scores a lot worse than the 2013 geforce 670GTX with 2GB. Rolling Eyes
I'm hoping this is a driver issue and this will improve with AC or geforce driver updates. If not, this is really disgraceful for professional 3D software...

For large projects, the last generation is clearly better, but the improvement in comparison to the 670 is not really spectacular...

Initially I was going to buy a 2-in-1 with a pen like the surface book or lenovo yoga P40. But they all have dual core CPU and a GTX965m at best. Availability is another issue.

So I started looking for a higher speced laptop with quad core and decent GPU instead.
Quadro laptops are not really an option for me right now because the current line of quadro cards is long overdue and 'affordable' laptops with quadro have low end quadro cards (m2000 max).
A lot of gaming laptops are 'not really tasteful' and professional looking to say the least.

I'm aware that a lot of people are saying GPU is not that important for AC.
I'm a bit hesitant to get lower end here because of a few reasons:

1. I work in 3D a lot, with custom textures, 3D cutaways, ... I notice that when using cutting planes, AC slows down, I assume this is a matter of GPU?
Although I mostly work on housing projects, I like to add a lot of detail to my models. So I assume in that case GPU does matter more?

2. future-proofing. I might sound naive here, but I'm still hoping Graphisoft will get their act together and optimise AC 3D performance. I also want a laptop that is VR-ready. And should BimX Pro ever come to windows, that that extra bit of GPU power might come in handy as well.

3. resolution. I like to make 3D images without rendering or taking printscreens in the viewport, so I'll need a higher res screen (laptop or secondary monitor). I assume the higher res you go the more the GPU comes into play when working in 3D? Or are there other bottlenecks here as well?

So.. lot's of information, but it seams like a very complicated manner..

I'm currently considering 3 options:

1. waiting for the new generation workstation laptops with Pascal Quadro cards. But I have no idea when they will get released.

2. buying a lower speced and more portable laptop (maybe 2-in-1) with higher res screen with thunderbolt and a external GPU like the Razer Core

3. getting a higher speced laptop with only a full HD screen and a geforce 1060 or 1070 GTX

Any advice would be greatly appreciated. Preferably from AC users that work and model a lot in 3D (sketchup style), because that is where performance and 'smoothness' matter most to me.

Thanks!
patrick



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renderman
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Joined: 06 Jun 2012
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Location: lewes

PostPosted: Mon Sep 11, 2017 5:10 pm    Post subject: Re: AC20 laptop GPU - once more :) Reply with quote

Hi,

I'm interested to know what you bought in the end?

I have a similar setup and realise I bought my laptop in 2012 - it has performed brilliantly
https://www.pcspecialist.co.uk/forums/showthread.php?21298-laptop-for-Archicad-and-3dsMax-GTX675MX-or-Quadro3000-i53366-or-i73630

... but the only time I really notice a lag is when selecting objects in the 3d window, it can often be a 1 second lag to pick up each object - this never happens in plan. Is this something to do with the graphics card? or is it normal for archicad.
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pitrak
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Joined: 22 Sep 2015
Posts: 28
Location: Belgium

PostPosted: Mon Sep 11, 2017 7:33 pm    Post subject: Re: AC20 laptop GPU - once more :) Reply with quote

Hi Renderman,

In the end I went for the workhorse. I bought a BTO (local clevo-based built-to-order brand) X•BOOK 15CL77 15.6 inch laptop with i7 7700HQ Kaby Lake, 64GB ram and a GTX1070.
I'm glad I did as I've been using point clouds for my last three renovations. I clean them up and downsample them myself and it's taking all the CPU and ram resources to handle large pointclouds. I usually reduce them to 500mb, that should work on a lighter laptop as well.

This afternoon I've had my first AC21 session (the local version just came out last week) and I notice it's slower in 3D than AC20. It looks better for sure (viewport rendering in windows).
I was working on a light model with the point cloud layer on, so a slowdown is not really normal. Will need to do some further testing.

Another reason to go for the workstation was that I wanted a higher res monitor, which is demanding on GPU, and that I wanted to render more and faster.

All in all, it's a quite noisy and a bit bulky laptop, but I'm glad I've got that extra horsepower under the hood!

_________________
Patrick Seurinck - architect
Archicad 20 - windows 10 64bit
BTO laptop - quad core i7 - 32GB
GTX 1070 - 2560x1440 32"
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