Is crossfire possible with a 1 16x pcie and a 1 4x pcie slot?

Toggle sidebar Toggle sidebar
Solution
Multipack
Yes chipset pcie bandwidth could be affected more than with SLI like you say, but it'd probably not be that noticeable. Is hard to say until trying really. I do agree it'd be better to use a x8/x8 config though to avoid those issues.
Sort by date Sort by votes
R

Ricky Omesmo

Honorable
Apr 14, 2013
17
0
10,520


Even on a gtx1080 there is little difference between x16 and x4.
You can see some reviews about that.
https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080_PCI_Express_Scaling/24.html
https://www.techpowerup.com/reviews/NVIDIA/GTX_980_PCI-Express_Scaling/21.html
https://www.techpowerup.com/reviews/AMD/R9_Fury_X_PCI-Express_Scaling/18.html
https://www.techpowerup.com/reviews/Intel/Ivy_Bridge_PCI-Express_Scaling/23.html
 
Upvote 1 Downvote
M

Mavhunter405

Commendable
Nov 7, 2016
25
0
1,540


I´ve got an Asus Dual RX 480 4gb. I plan on upgrading in the future for a crossfire setup but dont know if my mobo will keep up.
 
Upvote 0 Downvote
M

Mavhunter405

Commendable
Nov 7, 2016
25
0
1,540


Can you suggest any motherboard capable of crossfire 2 rx 480?
 
Upvote 0 Downvote
clarkjd

clarkjd

Splendid
Dec 7, 2005
6,486
34
28,490

Specifically, no. I'm not that into crossfire or SLI. I would want a board that had at least 2 x8 pci-e slots(or an x16/x8 board).

 
Upvote 0 Downvote
M

Mavhunter405

Commendable
Nov 7, 2016
25
0
1,540


I find it interesting that there´s only a 3% loss with the Fury X, at 4x 3.0 and somewhat similar with the nVidia cards.
For what the graphs are showing, im assuming there still can be a significant boost in performance with that type of pcie slot?
 
Upvote 0 Downvote
M

Mavhunter405

Commendable
Nov 7, 2016
25
0
1,540


Ok, thanks, I´ll have a look to see what I can find
 
Upvote 0 Downvote
C

chenw

Honorable
Oct 25, 2014
1,665
0
12,460


Those are only in single GPU configurations, and none of them explore the effect of lanes when in a multi-GPU configuration, which SLI is also in general less susceptible to due to the higher lanes bandwidth and the extra SLI link, while Crossfire is done entirely across the PCI-E lanes, which x4 could adversely affect the performance as it is used more.
 
Upvote 0 Downvote
Multipack

Multipack

Honorable
Sep 5, 2016
4,283
3
9,960
Yes chipset pcie bandwidth could be affected more than with SLI like you say, but it'd probably not be that noticeable. Is hard to say until trying really. I do agree it'd be better to use a x8/x8 config though to avoid those issues.
 
Upvote 0 Downvote
Solution
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom