# GTX 1080 and Vray RT

**URL:** <https://forums.chaos.com/t/gtx-1080-and-vray-rt/59525>\
**Category:** General\
**Created:** [July 28, 2016, 4:37am UTC](https://forums.chaos.com/t/gtx-1080-and-vray-rt/59525 "2016-07-28T04:37:31Z")\
**Posts on this page:** 1\
**Showing post:** 9

<div class="post-metadata">

**Author:** ![savage309](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/savage309/32/40144_2.png) [@savage309](https://forums.chaos.com/u/savage309)\
**Post date:** [July 28, 2016, 8:25pm UTC](https://forums.chaos.com/t/gtx-1080-and-vray-rt/59525/9 "2016-07-28T20:25:00Z")

</div>

> [@Video Card Purchase](https://forums.chaos.com/t/video-card-purchase/51727/2):
>
> Yes, but that means all my previews and active shade in RT will be on the old card, which defeats the purpose of all the CUDAs on the new card. Besides, I always do my final render on Vray Adv.
> 
> What about automatically using only 85% or so for everything but production render mode? Isn’t that the way Redshift and Fstorm seems to handle it?

You either don’t utilize fully the GPU or you get sluggish UI. If you don’t utilize the GPU well it can get much slower … You can go for lower utilization with RT GPU with rays per pixel 1, but for many scenes it is not low enough. I am thinking of adding option for that on-purpose underutilization. I will count your post as a request for that :).

Best,  
Blago.

---

_[View the full topic](https://forums.chaos.com/t/gtx-1080-and-vray-rt/59525)._