Crossfire/SLI - How and What? - Techist - Tech Forum

Go Back   Techist - Tech Forum > Computer Hardware > New Systems | Building and Buying
Click Here to Login
Closed Thread
 
Thread Tools Display Modes
 
Old 04-12-2010, 06:07 AM   #1 (permalink)
Junior Techie
 
Join Date: Apr 2010
Location: Brisbane, Australia
Posts: 49
Send a message via MSN to BWLAF
Default Crossfire/SLI - How and What?

I have a couple of questions concerning Crossfire/SLI configurations.

What exactly do they do? How do they differ from just having two video cards?

How do they do this? What is the technology involved?

How do they need to be configured to do this? What do you need to do?

What are the advantages/disadvantages of Crossfire/SLI vs dual video cards?

What are the advantages/disadvantages of Crossfire vs SLI?

Thanks in advance, it's something I've always struggled to understand.

LAF
__________________

BWLAF is offline  
Old 04-12-2010, 08:25 AM   #2 (permalink)
Lady Techie
 
Yami's Avatar
 
Join Date: Dec 2008
Location: UK
Posts: 7,774
Default Re: Crossfire/SLI - How and What?

Quote:
What exactly do they do?
They allow you to double your GPU processing power for about half the price of buying an equivalently powerful GPU.
For example, I have a GTX260 in my system. Two GTX260s are roughly as powerful as, say, an HD5870 (not sure on the accuracy there, just using it as an example).
A new GTX260 will cost me just over 100, whereas a HD5870 is over 300. By buying a second GTX260, I then have the same graphics power as an HD5870 for a third of the price.

Quote:
How do they differ from just having two video cards?
If you just have two video cards then you can only use one at once for things like gaming, leaving the other card to do nothing. Having SLI/XFire lets you use multiple cards for the same process.

Quote:
How do they do this? What is the technology involved?
The GPUs are connected with an SLI/XFire bridge. The more technical stuff is rather beyond me at the moment, Wikipedia should probably give you plenty of technical information, as might other members here.

Quote:
What are the advantages/disadvantages of Crossfire vs SLI?
SLI used to get you a better performance boost from adding a second card but they're both pretty much equal now.

Quote:
What are the advantages/disadvantages of Crossfire/SLI vs dual video cards?
Allows you to use multiple cards for the same thing, whereas just two video cards won't. One old disadvantage was that you couldn't use the video outputs on extra cards but I believe that's gone now.
__________________

__________________
Desktop i5-4440 - ASRock Z77 Extreme4 - EVGA GTX970 - 4x4GB 1600MHz - Samsung 850 EVO 250GB - Be Silent Base 800 - 3TB+1TB+1TB+640GB
Laptop i7-3740QM @ 2.7GHz, 2x4GB 1600Mhz, GT640M, OCZ Agility 3 120GB
Smartphone Galaxy S7 Edge

LinkedIn Kiera Mitchell
Yami is online now  
Old 04-12-2010, 05:59 PM   #3 (permalink)
Junior Techie
 
Join Date: Apr 2010
Location: Brisbane, Australia
Posts: 49
Send a message via MSN to BWLAF
Default Re: Crossfire/SLI - How and What?

Very informative, thank you
BWLAF is offline  
Closed Thread

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 05:15 PM.


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