Looking at discussions regarding GTX 1080 and that it has a higher core clock than Titan X but lower Vram (x has 12, 1080 will have 8). So the thought enters my mind, couldn't this 4GB difference maybe be offset by using 4GB Out of Core Ram?
Is that how it works, or is there more to it than that...
Does Out of Core Ram go 1-to-1 with Vram?
Thanks for thoughts or for sharing your experiences..
Out of Core Ram - what is your take on this?
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FrankPooleFloating
- Posts: 1669
- Joined: Thu Nov 29, 2012 3:48 pm
Out of core is only for textures.. so if you have butt-loads of polys, you are out of luck. 
Win10Pro || GA-X99-SOC-Champion || i7 5820k w/ H60 || 32GB DDR4 || 3x EVGA RTX 2070 Super Hybrid || EVGA Supernova G2 1300W || Tt Core X9 || LightWave Plug (v4 for old gigs) || Blender E-Cycles
Thanks Frank!
Does a higher level of 'displacement' up polys? Or is displacement a mod of texture?
Does a higher level of 'displacement' up polys? Or is displacement a mod of texture?
Win 10 Pro 64, Xeon E5-2687W v2 (8x 3.40GHz), G.Skill 64 GB DDR3-2400, ASRock X79 Extreme 11
Mobo: 1 Titan RTX, 1 Titan Xp
External: 6 Titan X Pascal, 2 GTX Titan X
Plugs: Enterprise
Mobo: 1 Titan RTX, 1 Titan Xp
External: 6 Titan X Pascal, 2 GTX Titan X
Plugs: Enterprise
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FrankPooleFloating
- Posts: 1669
- Joined: Thu Nov 29, 2012 3:48 pm
Hmmm.. good question. My guess is displacement adds geo in engine. Easy to test I guess, but I am done for the day. Fellas?
Win10Pro || GA-X99-SOC-Champion || i7 5820k w/ H60 || 32GB DDR4 || 3x EVGA RTX 2070 Super Hybrid || EVGA Supernova G2 1300W || Tt Core X9 || LightWave Plug (v4 for old gigs) || Blender E-Cycles
Yes, when Out-of-core is enabled, every image currently used in the scene is loaded in system RAM instead of VRAM. This is true also for any displacement texture and even HDRI used.
You loose a bit of rendering power (10~20% max) but you should always be able to finish the job, or to have much more space for geometry
ciao beppe
You loose a bit of rendering power (10~20% max) but you should always be able to finish the job, or to have much more space for geometry
ciao beppe
Hi Beppe!bepeg4d wrote:Yes, when Out-of-core is enabled, every image currently used in the scene is loaded in system RAM instead of VRAM. This is true also for any displacement texture and even HDRI used.
You loose a bit of rendering power (10~20% max) but you should always be able to finish the job, or to have much more space for geometry
ciao beppe
If I have a Titan X w/12gb Vram and then a Titan Z with 6gb Vram, I am capped at 6gb Vram.
If I turn on a 6gb Out of Core Dram, would I be running at 12gb, where the full Vram of the Titan X is uncapped?
Or would I need to run a 12gb Out of Core Dram to accomplish this?
Just wondering how this would play out. Thanks!
-Notiusweb
Win 10 Pro 64, Xeon E5-2687W v2 (8x 3.40GHz), G.Skill 64 GB DDR3-2400, ASRock X79 Extreme 11
Mobo: 1 Titan RTX, 1 Titan Xp
External: 6 Titan X Pascal, 2 GTX Titan X
Plugs: Enterprise
Mobo: 1 Titan RTX, 1 Titan Xp
External: 6 Titan X Pascal, 2 GTX Titan X
Plugs: Enterprise
Hi Notiusweb,
unfortunately, the Out-of-core feature is per machine, not per GPU.
in this scenario, my advice is to move the Titan Z in another box and use them as net render slave with 6GB of Out of core option active. In this way you will use all the VRAM space of the Titan X
ciao beppe
unfortunately, the Out-of-core feature is per machine, not per GPU.
in this scenario, my advice is to move the Titan Z in another box and use them as net render slave with 6GB of Out of core option active. In this way you will use all the VRAM space of the Titan X
ciao beppe