# Eevee and multiple graphics cards **URL:** \ **Category:** Technical Support\ **Tags:** blender2-80, eevee\ **Created:** [March 20, 2019, 11:13am UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069 "2019-03-20T11:13:39Z")\ **Posts on this page:** 17\ **Page:** 1
**Author:** ![Tedri\_Mark](https://blenderartists.org/letter_avatar_proxy/v4/letter/t/51bf81/32.png) [@Tedri\_Mark](https://blenderartists.org/u/Tedri_Mark)\ **Post date:** [March 20, 2019, 11:13am UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/1 "2019-03-20T11:13:39Z")
Sorry if this has already been answered, but I’m thinking that eevee is only going to make use of one of my GTX 1070s, correct? I know it makes cycles worse, but will enabling SLI speed things up for eevee? Is there a way of using both? Could I make a virtual machine that uses one of the cards and run two instances of blender? ---
**Author:** ![Raffael](https://blenderartists.org/user_avatar/blenderartists.org/raffael/32/516606_2.png) [@Raffael](https://blenderartists.org/u/Raffael)\ **Post date:** [March 20, 2019, 11:34am UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/2 "2019-03-20T11:34:42Z")
Hey, no eevee does not support multiple GPU “yet” > [@Eevee Multi GPU](https://blenderartists.org/t/eevee-multi-gpu/1126333/2): > > Hi. For the moment you should use the most powerful GPU to handle the display. 18 - What PC configuration would you recommend to work comfortably with Eevee? A - A single large graphics card. Lots of VRAM. Multi GPU is not scheduled for tomorrow. ---
**Author:** ![chalybeum](https://blenderartists.org/user_avatar/blenderartists.org/chalybeum/32/518076_2.png) [@chalybeum](https://blenderartists.org/u/chalybeum)\ **Post date:** [March 20, 2019, 2:40pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/3 "2019-03-20T14:40:52Z")
You can use two instances of Blender for e.g. rendering out different frame ranges of an animation to use both cards simultaneously. No need to use a VM. ---
**Author:** ![YAFU](https://blenderartists.org/user_avatar/blenderartists.org/yafu/32/25605_2.png) [@YAFU](https://blenderartists.org/u/YAFU)\ **Post date:** [March 20, 2019, 2:59pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/4 "2019-03-20T14:59:53Z")
> [@Tedri\_Mark](#): > > Could I make a virtual machine that uses one of the cards and run two instances of blender? Interesting. What VM software supports that? Anyway you remember that all the frames of an animation must be consistent. I have seen that OpenGL results may vary depending on drivers/hardware. I’m not sure how consistent it would be for animation. > [@chalybeum](#): > > You can use two instances of Blender for e.g. rendering out different frame ranges of an animation to use both cards simultaneously. No need to use a VM. I’m not sure if I understood. How would you do that for Eevee/OpenGL? ---
**Author:** ![chalybeum](https://blenderartists.org/user_avatar/blenderartists.org/chalybeum/32/518076_2.png) [@chalybeum](https://blenderartists.org/u/chalybeum)\ **Post date:** [March 20, 2019, 3:13pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/5 "2019-03-20T15:13:31Z")
I’m gonna make a little vid about this later. When I’m at home. ---
**Author:** ![Daniel\_Paul](https://blenderartists.org/user_avatar/blenderartists.org/daniel_paul/32/1324264_2.png) [@Daniel\_Paul](https://blenderartists.org/u/Daniel_Paul)\ **Post date:** [March 20, 2019, 3:14pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/6 "2019-03-20T15:14:04Z")
On windows with GeForce drivers its really easy. Just open one Blender with GPU 1 and then switch the settings and open another Blender. Sometimes i use 8 Blenders simultaneously to get 100% gpu load with eevee rendering. ![image](https://blenderartists.org/uploads/default/original/4X/5/3/4/5344b1afcbaf1720df606ea261063fc347eb27f0.png) Most of the time is use a titan x for the viewport (monitor is connected), and render on my two 1080 TI, so i can surf the web without lag while rendering. ---
**Author:** ![Tedri\_Mark](https://blenderartists.org/letter_avatar_proxy/v4/letter/t/51bf81/32.png) [@Tedri\_Mark](https://blenderartists.org/u/Tedri_Mark)\ **Post date:** [March 20, 2019, 3:17pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/7 "2019-03-20T15:17:30Z")
> [@YAFU](#): > > Interesting. What VM software supports that? Anyway you remember that all the frames of an animation must be consistent. I have seen that OpenGL results may vary depending on drivers/hardware. I’m not sure how consistent it would be for animation. I’m not sure that there is one, it was a hypothetical question really… And yes renders from my macbook are different to those on my PC. That said, Both cards in my PC are the same so in theory that wouldn’t be an issue. But yeah, ideally I could render one scene using one instance of blender and GPU 1, and another scene on another instance of blender on GPU 2 > [@YAFU](#): > > I’m not sure if I understood. How would you do that for Eevee/OpenGL? I think both instances of blender would be using the card that was driving the screen. ---
**Author:** ![Tedri\_Mark](https://blenderartists.org/letter_avatar_proxy/v4/letter/t/51bf81/32.png) [@Tedri\_Mark](https://blenderartists.org/u/Tedri_Mark)\ **Post date:** [March 20, 2019, 3:18pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/8 "2019-03-20T15:18:29Z")
> [@Daniel\_Paul](#): > > On windows with GeForce drivers its really easy. Just open one Blender with GPU 1 and then switch the settings and open another Blender. Sometimes i use 8 Blenders simultaneously to get 100% gpu load with eevee rendering. BANG! That’s what I was looking for! My deadline just got a lot more realistic 😃 ---
**Author:** ![SterlingRoth](https://blenderartists.org/user_avatar/blenderartists.org/sterlingroth/32/3107_2.png) [@SterlingRoth](https://blenderartists.org/u/SterlingRoth)\ **Post date:** [March 20, 2019, 3:26pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/9 "2019-03-20T15:26:15Z")
> [@Daniel\_Paul](#): > > Most of the time is use a titan x for the viewport (monitor is connected), and render on my two 1080 TI, so i can surf the web without lag while rendering Haha, I love your titan powered web browser. ---
**Author:** ![YAFU](https://blenderartists.org/user_avatar/blenderartists.org/yafu/32/25605_2.png) [@YAFU](https://blenderartists.org/u/YAFU)\ **Post date:** [March 20, 2019, 3:30pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/10 "2019-03-20T15:30:39Z")
Cool! I can not test because I only have a single nvidia card. I hope that this can also be done in Linux. ---
**Author:** ![chalybeum](https://blenderartists.org/user_avatar/blenderartists.org/chalybeum/32/518076_2.png) [@chalybeum](https://blenderartists.org/u/chalybeum)\ **Post date:** [March 20, 2019, 5:55pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/11 "2019-03-20T17:55:15Z")
Sorry no vid today. I don’t find the time. @Daniel_Paul In Windows, it’s even easier. Just right click the blender exe. ![Capture](https://blenderartists.org/uploads/default/original/4X/0/9/9/099f13e5cd33a867fe76b7aad96bbcbd2c9c49ff.png) If you are on NVIDIA that is. @YAFU I am not aware of this feature in the Linux driver. I am experimenting with this but haven’t had much luck for now. ---
**Author:** ![Daniel\_Paul](https://blenderartists.org/user_avatar/blenderartists.org/daniel_paul/32/1324264_2.png) [@Daniel\_Paul](https://blenderartists.org/u/Daniel_Paul)\ **Post date:** [March 21, 2019, 8:26am UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/12 "2019-03-21T08:26:30Z")
Sweeet!! Didn’t know that. ---
**Author:** ![zcream](https://blenderartists.org/letter_avatar_proxy/v4/letter/z/dc4da7/32.png) [@zcream](https://blenderartists.org/u/zcream)\ **Post date:** [October 8, 2019, 4:54pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/13 "2019-10-08T16:54:37Z")
Does it work even if you do CPU+GPU render ? Perhaps one instance does CPU+GPU render and the other instance does 2nd GPU render to max out all cores ? ---
**Author:** ![SterlingRoth](https://blenderartists.org/user_avatar/blenderartists.org/sterlingroth/32/3107_2.png) [@SterlingRoth](https://blenderartists.org/u/SterlingRoth)\ **Post date:** [October 8, 2019, 5:03pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/14 "2019-10-08T17:03:07Z")
Eevee doesn’t use cpu+gpu to render like cycles does. ---
**Author:** ![Samsara\_71](https://blenderartists.org/letter_avatar_proxy/v4/letter/s/a587f6/32.png) [@Samsara\_71](https://blenderartists.org/u/Samsara_71)\ **Post date:** [October 16, 2019, 3:19pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/15 "2019-10-16T15:19:25Z")
Hi All, new to the forum & a few weeks into somewhat ambitious (over ambitious some would say) Blender Project. Can Eevee utilise more than one GPU on a Mac when rendering? I’ve got a Mac pro 5.1 (Mojave) & have connected 3xRX580 8GB GPUs as an experiment. Blender only uses one GPU when rendering, but DaVinci Resolve uses all 3 GPU to 100% (300%!) capacity. Is there anything I can do to ‘make’ Blender 2.8 use the available GPUs? ---
**Author:** ![chalybeum](https://blenderartists.org/user_avatar/blenderartists.org/chalybeum/32/518076_2.png) [@chalybeum](https://blenderartists.org/u/chalybeum)\ **Post date:** [October 16, 2019, 7:11pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/16 "2019-10-16T19:11:04Z")
For now only if Mac drivers would somehow allow for designating a specific card to a Blender instance (which I didn’t heard of by now. But then I am no Mac guy…) . That’s just how Eevee works to date. ---
**Author:** ![Daniel\_Paul](https://blenderartists.org/user_avatar/blenderartists.org/daniel_paul/32/1324264_2.png) [@Daniel\_Paul](https://blenderartists.org/u/Daniel_Paul)\ **Post date:** [November 6, 2019, 4:08pm UTC](https://blenderartists.org/t/eevee-and-multiple-graphics-cards/1152069/17 "2019-11-06T16:08:39Z")
> [@Would be nice list for Blender + Stuff](https://blenderartists.org/t/would-be-nice-list-for-blender-stuff/1181175/2): > > Multi GPU rendering with EEVEE (WIN / Nvidia only) We did a small bat script that enables us to render multiple instances of blender automatically on individual GPUs. Some initial steps are required so read carefully. 1. Fist of all, go to your blender directory Duplicate your blender.exe multiple times, so that you have one blender.exe for every GPU you want to use. In our case, we use 2x 1080 TI and one Titan X. So we duplicated 3 blender.exe and named them accordingly: -blender1.exe -ble…