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Can MSI Z87-G45 run 2 gtx 760 on full speed ?

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September 23, 2013 6:01:42 AM

Can MSI Z87-G45 run 2 gtx 760 on full speed ? I am looking to buy a new pc soo i am looking should i buy better PCU if there is a way to play with 2 760 i will buy intel 5670 too .
a b V Motherboard
September 23, 2013 6:07:34 AM

luksiking said:
Can MSI Z87-G45 run 2 gtx 760 on full speed ? I am looking to buy a new pc soo i am looking should i buy better PCU if there is a way to play with 2 760 i will buy intel 5670 too .


Yes, the MSI Z87-G45 can support up to 3 x GTX760s at full speed :) 
So 2 x GTX760 will be easy.

http://uk.msi.com/product/mb/Z87-G45-GAMING.html#specif...

If I have answered your question, please click "Pick as the Solution"
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a c 99 V Motherboard
September 23, 2013 6:09:08 AM

2 760s in SLI will run at PCIe 3.0 x8. So, yes, they will be fine.
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a b V Motherboard
September 23, 2013 6:18:45 AM

the answer is no... they cant run at full speed regardless of what the motherboard manufacturer spouts. the cpu designates the speed of the pci-e from x16 for 1 card x8 for 2 and x8x4x4 for 3 cards. any motherboard manufacturer that says different is using smoke and mirrors.

some boards offer 8x8x8 but in reality its 8x8 only the motherboard uses a trick to cycle the x8x8 between all 3 slots. this introduces massive latency and hammers performance.
the intel i5 is limited to 16 lanes of pci-e there is no wiggle room for the manufacturers to make any changes to this FACT! but they have been very sneaky in confusing the issue by issuing boards that have theoretically more pci-e lanes available even though they know they are pulling the wool over there patrons eyes.
pci-e for the i5 is handled on chip not on the motherboard. so it matters little what the motherboard manufacturers state. the fact is the pci-e is out of there control.

because of this the answer to "can 2 cards run at full speed" is no. they will be limited to x8 each which will incur a 2-3% performance hit... which to be honest with them cards is about 3 fps in bf3 at max settings. so not a big deal.
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a b V Motherboard
September 23, 2013 6:20:53 AM

Dayle McNeela said:
luksiking said:
Can MSI Z87-G45 run 2 gtx 760 on full speed ? I am looking to buy a new pc soo i am looking should i buy better PCU if there is a way to play with 2 760 i will buy intel 5670 too .


Yes, the MSI Z87-G45 can support up to 3 x GTX760s at full speed :) 
So 2 x GTX760 will be easy.

http://uk.msi.com/product/mb/Z87-G45-GAMING.html#specif...

If I have answered your question, please click "Pick as the Solution"


PCI-E GenGen3 (16,0,0), (8,8,0), (8,4,4) so no you cant run 3 cards at x16 (full speed) so i removed your best answer because it is wrong...
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a c 99 V Motherboard
September 23, 2013 12:36:11 PM

A GTX 760 will not fully saturate PCIe 3.0 x8 bandwidth, HEXiT.
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a b V Motherboard
September 24, 2013 7:54:43 AM

your rite it wont saturate the pci-e. but it does incur a penalty from the pci-e header on the cpu as the pci-e has to handle 2 devices not just 1. the result is it has to tick tock between the 2 and this has a small impact on latencies which results in 2-3% hit on performance, so its hardly gonna matter with that build.
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