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View Full Version : Why Nvidia Optimus doesn't work?



ViktorRu
11-07-2012, 04:29 PM
Hello! I have ASUS G75VW with 3d. And I want to have Nvidia Optimus function. Intel HD graphics doesn't support 120hz? That's not a problem - make optimus avialable on 60 Hz. It's better to have 60Hz and work 6-7 hours on battery than have 120Hz and work for 2-3 hours.

ggBanks
11-07-2012, 04:52 PM
The G55/G75 series do not support Optimus and if you ask if it can it be done with a software update, no it cannot. Optimus requires hardware capabilities not software ones, so there will be no Optimus for us.

Zygomorphic
11-08-2012, 03:14 AM
Hello! I have ASUS G75VW with 3d. And I want to have Nvidia Optimus function. Intel HD graphics doesn't support 120hz? That's not a problem - make optimus avialable on 60 Hz. It's better to have 60Hz and work 6-7 hours on battery than have 120Hz and work for 2-3 hours.

Optimus costs money to make and also reduces gaming performance. In addition, it requires notebook custom drivers, which causes all sorts of headaches for ASUS to update. Better and cheaper I think to make a reference GPU that nVidia supports with their notebook drivers than one that would have better battery life (4-5 hrs) and lots more software problems. Just my $2&10^-2

WontonNoodle
11-08-2012, 06:08 AM
Optimus costs money to make and also reduces gaming performance. In addition, it requires notebook custom drivers, which causes all sorts of headaches for ASUS to update. Better and cheaper I think to make a reference GPU that nVidia supports with their notebook drivers than one that would have better battery life (4-5 hrs) and lots more software problems. Just my $2&10^-2

Why do you keep posting this false information in every thread? It is amazingly wrong.

c_man
11-08-2012, 10:54 AM
1. There is NO 3D panel laptop that I know to have Optimus. It's nVidia doing this, not Asus.
2. There is NO G series to have Optimus and this was Asus call at the time. It's not meant for battery usage really.

Zygomorphic
11-08-2012, 11:12 AM
@WontonNoodle, how am I wrong?

laptopmag.com showed that Optimus cut performance because the nVidia-rendered image has to travel across the main memory bus, which is slower than the GPU bus. Also, the main memory has to share the rendered images as well as all the other traffic. Their example was the alienware m11x, where from r1 to r2 the performance dropped, although the GPU was the same, and the processor became faster.

It looks as if the custom drivers are no longer the case! That would be great! :) Early on in the development of Optimus, I remember reading that each driver was custom tweaked, so nVidia didn't create a reference one like they did for stand-alone cards.

pROGammer
11-08-2012, 10:58 PM
The G46 will have Optimus according to this post (http://rog.asus.com/171262012/g-series-laptops/the-g46vw-gaming-just-got-more-portable/) on the RoG website.

So it's a tradeoff - just give us the option. Some are willing to pay more, some are not, and that's okay.
I would kill for the ability to replace the DVD with a second battery on my G75 like the Asus V1v for example.
The secondary battery can then be purchased separately by those who need it.
If the G76 has this, I'm preordering NOW. Just make sure you keep the dual-fan, dual-exaust, dual-HDD design and 4 RAM slots (memory bandwidth is just as important as size, perhaps even more above a certain amount). A powered eSATA would be very nice indeed.

Shawnnepc
11-08-2012, 11:23 PM
Optimus costs money to make and also reduces gaming performance. In addition, it requires notebook custom drivers, which causes all sorts of headaches for ASUS to update. Better and cheaper I think to make a reference GPU that nVidia supports with their notebook drivers than one that would have better battery life (4-5 hrs) and lots more software problems. Just my $2&10^-2


Why do you keep posting this false information in every thread? It is amazingly wrong.


I think it boils down to the licensing fees imposed by NVIDIA to use the technology.

There's a 3rd party software that is supposed to offer the same function

http://www.lucidlogix.com/product-virtu-universal.html

I've used their software on some of our HTPC desktops and it works well enough.

The site claims it works on laptops as well, but it has so far been untested by us

Zygomorphic
11-09-2012, 03:05 AM
Thanks @Shawnnepc! I'll keep that in mind in the future! :) +rep!

colpolite
11-09-2012, 08:15 PM
@WontonNoodle, how am I wrong?

laptopmag.com showed that Optimus cut performance because the nVidia-rendered image has to travel across the main memory bus, which is slower than the GPU bus. Also, the main memory has to share the rendered images as well as all the other traffic. Their example was the alienware m11x, where from r1 to r2 the performance dropped, although the GPU was the same, and the processor became faster.

It looks as if the custom drivers are no longer the case! That would be great! :) Early on in the development of Optimus, I remember reading that each driver was custom tweaked, so nVidia didn't create a reference one like they did for stand-alone cards.


So what you are saying since Optimus reduces performance then the m17x R4 and the clevo/sager np9150 that offers gtx 670m and up with Optimus have reduce performance because they have optimus.

By that logic then the gtx 670m on G75 has full performance since it doesn't have Optimus and the Clevo/Sager with the same gpu or better and Alienware M17x R4 got screwed because they have Optimus and has reduce performance?

Or are you just making an excuse for Asus since they could have put Optimus to add more battery life on the G55/G75 but didn't and your logic is because it reduces performance? So what do you tell the MSI/Alienware/Clevo that actually uses high end gtx cards and still has Optimus in their 15-17" lineups? They have reduce performance since they have Optimus so buy G55/G75 instead? LOLZ

Explain yourself now

finalhour
11-09-2012, 08:31 PM
So what you are saying since Optimus reduces performance then the m17x R4 and the clevo/sager np9150 that offers gtx 670m and up with Optimus have reduce performance because they have optimus.

By that logic then the gtx 670m on G75 has full performance since it doesn't have Optimus and the Clevo/Sager with the same gpu or better and Alienware M17x R4 got screwed because they have Optimus and has reduce performance?

Or are you just making an excuse for Asus since they could have put Optimus to add more battery life on the G55/G75 but didn't and your logic is because it reduces performance? So what do you tell the MSI/Alienware/Clevo that actually uses high end gtx cards and still has Optimus in their 15-17" lineups? They have reduce performance since they have Optimus so buy G55/G75 instead? LOLZ

Explain yourself now

When did such confrontational douche-baggery become acceptable on this forum? Mods? Anyone?
@WontonNoodle if you have a problem with something in his posts there are better ways to bring it up.

@colpolite (and still @WontonNoodle): He's just pointing out information from a relevant article. In my opinion, he's in no way responsible to explain himself, if you have a problem with what that article said then go to the website and talk to them. Forums are for exchange of information and perspectives. There's no need to get in a nerd rage and attack the guy. It might also help if you constructed complete/coherent sentences to communicate your thoughts instead of butchering the English language as you did, so he could actually answer your questions.

Zygomorphic
11-10-2012, 02:02 AM
@colpolite, that was overly heated.

Laptopmag ran tests on the m11x r1 vs r2 with WoW showing that under certain conditions (the GPU is not maxed out) the frame-rate suffers (from 100-10 [r1] to 50-60 [r2]) because of the bandwidth limitations of the main memory. Whether or not it makes a difference is up to debate, but when it comes to 3D (120 Hz) you need all the bandwidth you can get, and shoving a 1080p video through main memory is pretty heavy on the overall bandwidth of the system RAM.

I am not defending ASUS's decision, I had nothing to do with it (neither do MarshallR nor Raja). I am simply offering a potential suggestion as to why it might be the case. Everything comes down to a trade-off. ASUS, it seems, wanted lower price and simpler systems. Others such as Clevo/Sager or Alienware chose differently.

Zygomorphic
11-10-2012, 02:04 AM
@finalhour, thanks for the support. I am not worried about what others may think of me. One of the hallmarks of the forum that we mods are trying to preserve is the mutual respect and the ability to disagree without it devolving into flame wars. Not everything is clear-cut and dried answers, and for that I am very glad. It means that life still has adventure, trying to learn how to do things better and solve more problems. :D