How does vram work on multi GPU setups? - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > New Systems | Building and Buying
Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 11-08-2013, 10:35 AM   #1 (permalink)
Newb Techie
 
Join Date: Oct 2012
Location: Florida
Posts: 22
Question How does vram work on multi GPU setups?

From what I understand, if you are running 2 670s in sli for example, the vram is limited to only 1 of the cards. Why is this? Why can't 1 card render half of the pixels using its own vram and the other card render the other half using its?

It just seems so wasteful to have around 2gb of gddr5 memory just sitting there.
__________________

narpuppy is offline   Reply With Quote
Old 11-08-2013, 06:47 PM   #2 (permalink)
Build Guru
 
PP Mguire's Avatar
 
Join Date: Dec 2004
Location: Fort Worth, Texas
Posts: 28,279
Default Re: How does vram work on multi GPU setups?

VRAM is mirrored between the two cards so they both have the same texture information to fill the screen.
__________________
"Resolution is just a number." #Ubisoft
Origin/Steam = PP_Mguire Twitch = pp_mguire Instagram = ppmguire PSN = PP_Mguire

Access to my Plex PM me.
PP Mguire is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 04:09 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.