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3x R9 290s....tri-fire...unplayable on bf4 in 7680x1440 - Page 3

post #21 of 146
Or a i7 with a plx chip mobo
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post #22 of 146
Its the resolution. PCIE Bottleneck. You will need PCIE 3.0 X8 minimum. The higher the resolution the more PCIE Bandwidth you need. @ 1080 and 1440p resolution you might not see much difference between X4, X8, X16. 3 x 1440p is a resolution that requires the best CPU/MB.
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post #23 of 146
Quote:
Originally Posted by sugarhell View Post

Or a i7 with a plx chip mobo

Wouldn't 2011 end up cheaper? I know the 4820k in general is cheaper than the 4770k. Or at least it used to be.

Either way, yeah a PLX board would work fine, along with an 1155 or 1150 i7.
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post #24 of 146
Quote:
Originally Posted by ZealotKi11er View Post

Its the resolution. PCIE Bottleneck. You will need PCIE 3.0 X8 minimum. The higher the resolution the more PCIE Bandwidth you need. @ 1080 and 1440p resolution you might not see much difference between X4, X8, X16. 3 x 1440p is a resolution that requires the best CPU/MB.
that`s a dilemma,higher resolution needs less cpu than gpu but these 3x r9 290 need a good cpu...

This is an interesting reply
http://hardforum.com/showpost.php?p=1038330599&postcount=59

And this an interesting review for the OP
http://www.tomshardware.com/reviews/fx-8350-core-i7-3770k-gaming-bottleneck,3407-6.html
Edited by PontiacGTX - 1/11/14 at 10:36am
post #25 of 146
Quote:
Originally Posted by pioneerisloud View Post

Wouldn't 2011 end up cheaper? I know the 4820k in general is cheaper than the 4770k. Or at least it used to be.

Either way, yeah a PLX board would work fine, along with an 1155 or 1150 i7.

Its around the same because you need 4 fast ddr3 with 2011. I prefer the native pcie 3.0 and the solder on ivy-e tho.
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post #26 of 146
Quote:
Originally Posted by sugarhell View Post

Why you have a proof? You just have a stupid graph from 1200p with single gpu. I had eyefinity with 4 7970s. And yes you need at least pcie 3 x8

Go read some informations about new crossfire tech then try to recommend again pcie x4

A i5 is weak for tri-fire. When you use crossfire you move more data. When your cpu is already at max from the game expect a bottleneck. Also the last pcie goes through the sata ones

Why are you getting all defensive? All i asked for was proof. If you had quadfire then you'd be the best person to show me that i'm wrong. biggrin.gif I'm not just going to "take your word for it".
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post #27 of 146
op sugarhell, pioneerisloud and zealotkiller are all right about your situation....i few months back i had msi mpower z87 motherboard with an i5 4670k, running three 7970s.....though i wasn't running triple monitor setup like you i had 27 1440p monitor i could tell that my cpu wasn't enough for my setup playing bf4, my cpu was @ 100 @ 4,5ghz my card's usages was all over the place averaging 50 to 60% usage...i didn't get boost in fps vs when i was just using two cards with my x79 asrock and a i7 3820...pcie 8x 4x 4x is bottleneck for three cards setup trust me. you will never see 80 to 90% usage with that liming factor....i since then switch out my hardware with msi xpower z87 plx chip board and i7 4770k and it made a big difference....cpu usage in bf4 with the i7 4770k is 60-70% @ 4.5ghz my gpu's usages depending on maps avg's 70 to 80% on all cards netting me more fps..... so these guys are right....keep in mind this is my own experience and observation thumb.gif
Edited by jamaican voodoo - 1/11/14 at 10:48am
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post #28 of 146
Quote:
Originally Posted by jamaican voodoo View Post

op sugarhell, pioneerisloud and zealotkiller are all right about your situation....i few months back i had msi mpower z87 motherboard with an i5 4670k, running three 7970s.....though i wasn't running triple monitor setup like you i had 27 1440p monitor i could tell that my cpu wasn't enough for my setup playing bf4, my cpu was @ 100 @ 4,5ghz my card's usages was all over the place averaging 50 to 60% usage...i didn't get boost in fps vs when i was just using two cards with my x79 asrock and a i7 3820...pcie 8x 4x 4x is bottleneck for three cards setup trust me. you will never see 80 to 90% usage with that liming factor....i since then switch out my hardware with msi xpower z87 plx chip board and i7 4770k and it made a big difference....cpu usage in bf4 with the i7 4770k is 60-70% @ 4.5ghz my gpu's usages depending on maps avg's 70 to 80% on all cards netting me more fps..... so these guys are right....keep in mind this is my own experience and observation thumb.gif

this was just a single 7970 with my i7 @ 4.5 HT off using 1080 in BF4 MP 64 maxed out . . .

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post #29 of 146
while i understand what your trying prove!!! the truth of the matter is when your running more than two high gpu's and i7 just does better trust me... and seeing how amd new crossfire doesn't use a bridge it's to use 16x 8x 8x 3.0 then 8x 4x 4x just saying thumb.gif
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post #30 of 146
Quote:
i5 4670k w/ gentle overclock



doh.gif
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