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16x 8x sli gtx 480 vs 8x 8x 8x tri sli gtx 480

iirc there not much if any difference between 16x 16x and 8x 8x, probably around 2-3 fps.
i cant think of any reasons you would want/need tri sli, the only one is for the e-peen.
imho, its not worth it.
 
its 16x 8x vs 8x 8x 8x that could make a big difference over 16x 16x vs 8x 8x as its a extra card

i want the 3rd card because once i finish this build then thats in for a long time. the 3 cards will last along time as well. if for some reason dx12 comes out then its just tough luck for me. also will take a while before all the new games use it.
 
I would strongly advise against getting the 3rd gtx480. Even with 2 I hit the vram limit far quicker than I hit the performance limit. (6000x1200 res).

The power consumption and heat output of 3 is also borderline worrying. As you only have a 16x link between the gpu's and your cpu no matter what board you have I'd stick with 2 480's.
 
koooowweeee said:
its 16x 8x vs 8x 8x 8x that could make a big difference over 16x 16x vs 8x 8x as its a extra card
Click to expand...

You've lost me there.

There's no appreciable difference between running at x8 or x16 and, as the review I linked to shows, even x4 isn't a bottleneck.



koooowweeee said:
i want the 3rd card because once i finish this build then thats in for a long time. the 3 cards will last along time as well. if for some reason dx12 comes out then its just tough luck for me. also will take a while before all the new games use it.
Click to expand...

Have you considered the cost of this upgrade?

With the motherboard and the price of the GTX 480 you're talking in the region of £600.

That's a lot of wonga for little gain in some games.

And if you're gaming at 1920x1080 or 1920x1200 the gains are even less.
 
what i have now is 16x 8x

with up grade ill have 8x 8x 8x

so what im saying is that 16x 16x vs 8x 8x might not be the same difference loss in performance

i game @ 1900 x 1200

ill sell my mobo and get the newer one. but i know someone who is willing to part ex mine for his.

and ive got a gtx480 used
 
I don't think that x16 & x8 versus x8, x8 and x8 are your biggest issue as far as performance is concerned.

At 1920 x1200 the gains from adding a third card are extremely poor as you can see in the review I posted.

You'll have little performance gain and a huge increase in heat and power consumption.

You're going to need a PSU the wrong side of 1000W with three 6 pin and three 8 pin PCI-E power connectors.
 
Power and heat are no issue. Ive got a 1000w psu and a 1200w psu and my rig is all on water with great temps.

This last card is the only thing i can upgrade now without spending mega money even is its little performance.

Just would like to know if full 8x is worth it or should i hold out for a full 16 board to come out.

I know at that res its over kill but when newer high quality games come out its not going to be especially if i keep the rig for at least two years
 
What's so funny about that. Not as if im the only person who has ever done it.

And if your read the thread there is a reason for it.

I like to max out games. You can't do that with one 470 never mind two with some games
 
If you want to do it then do it.

It sounds like you've made up your mind.

All the information we have shows that x8 gives no noticeable performance decrease over x16. Even x4 works fine as the review I linked to shows.

I assume you have no other expansion cards as the only slot free would be the x1 PCI-E slot at the top of the board unless you have single slot back plates for the 480's.

And the x1 PCI-E slot would seem to be blocked by the heatsink for anything other than the shortest cards.
 
Surveyor said:
If you want to do it then do it.

It sounds like you've made up your mind.

All the information we have shows that x8 gives no noticeable performance decrease over x16. Even x4 works fine as the review I linked to shows.

I assume you have no other expansion cards as the only slot free would be the x1 PCI-E slot at the top of the board unless you have single slot back plates for the 480's.

And the x1 PCI-E slot would seem to be blocked by the heatsink for anything other than the shortest cards.
Click to expand...

ye pretty much made up my mind lol

the only slot free is the one at the top x1 pci-e and the rad is in the way of that

if i went with 2 gtx580 its going to cost me a lot at them cards are still over priced even used but could be a better option
 
well there wasnt really much point of posting this thread then if you have made up your mind as even the link surveyor posted wont convince you or the things people have said. :rolleyes:
probably just wanted to tell us that you have lots of money and can spend it on whatever you want.
 
no one has really answered the question.

dont get me wrong i am great full for the answers but i still dont know if going for 16x 8x to 8x 8x 8x as its one more card taking a hit on bandwith

they say 16x 16x vs 8x 8x is only a small hit but it another card so is that going to be a big hit as there is also the scaling to take into it
 
koooowweeee said:
no one has really answered the question.

dont get me wrong i am great full for the answers but i still dont know if going for 16x 8x to 8x 8x 8x as its one more card taking a hit on bandwith

they say 16x 16x vs 8x 8x is only a small hit but it another card so is that going to be a big hit as there is also the scaling to take into it
Click to expand...

We've answered it as best we can.

In theory running three cards at x8 shouldn't make any difference over three cards at x16.

Based on the review I linked to running three cards at x4 would be fine as well.

Scaling is a different matter.

As has already been shown the scaling of three cards is pretty poor in the majority of cases at the resolution you're running.

Here's another link for you:

Clash of the Titans: 3-way SLI GTX 480 Test
 
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