Is virtual reality Vram hungry?

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geofelt
Good question. I do not know the specs for VR.
But, I can't imagine they are so high that nobody can buy unless they buy a 12gb titan X.

VRAM has vecome a marketing issue.
My understanding is that vram is more of a performance issue than a functional issue.
A game needs to have most of the data in vram that it uses most of the time.
Somewhat like real ram.
If a game needs something not in vram, it needs to get it across the pcie boundary
hopefully from real ram and hopefully not from a hard drive.
It is not informative to know to what level the available vram is filled.
Possibly much of what is there is not needed.
What is not known is the rate of vram exchange.
Vram is managed by the Graphics card driver, so there may be differences...
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Shneiky

Shneiky

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Aug 21, 2011
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The main advancements in Pascal regards VR wont be the vRam. Pascal will have a lot more advantages than current 900 generation, which mainly come from currently non existing features, drivers and optimizations that will/may not be present on the 980 TI at all.

My advice is to wait and get Pascal.
 
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geofelt

geofelt

Titan
Oct 9, 2006
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Good question. I do not know the specs for VR.
But, I can't imagine they are so high that nobody can buy unless they buy a 12gb titan X.

VRAM has vecome a marketing issue.
My understanding is that vram is more of a performance issue than a functional issue.
A game needs to have most of the data in vram that it uses most of the time.
Somewhat like real ram.
If a game needs something not in vram, it needs to get it across the pcie boundary
hopefully from real ram and hopefully not from a hard drive.
It is not informative to know to what level the available vram is filled.
Possibly much of what is there is not needed.
What is not known is the rate of vram exchange.
Vram is managed by the Graphics card driver, so there may be differences in effectiveness between amd and nvidia cards.
Here is an older performance test comparing 2gb with 4gb vram.
http://www.pugetsystems.com/labs/articles/Video-Card-Performance-2GB-vs-4GB-Memory-154/
Spoiler... not a significant difference.
 
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