Questions about Intel Devil's Canyon

[ambam]

I'm building a new PC and I've got some questions about Intel's Devil's Canyon (4790K) processor that I intend to buy.

*I read that Devil's Canyon 4790K is the fastest CPU for gaming in games that do not use more than four cores, which is 95% of games, is this true?

*If I buy an MSI Z97 MPOWER MAX AC motherboard which features PCIe 3.0 x16 slots but the Devil's Canyon only has 16 PCI express lanes, does that mean that two-way SLI GeForce 980 Ti's will each run at PCIe x8 speeds? Will this cause a bottleneck and performance loss?

*Since the processor runs at a very high 4.4GHz with turbo boost activated, does that mean I will have to use advanced water cooling? Or can I get away with using a ZALMAN CNPS9900 MAX without overheating?

*The Devil's Canyon 4790K is on par with, or outperforms the Haswell-E in four-threaded gaming?

 

[i7Baby]

*I read that Devil's Canyon 4790K is the fastest CPU for gaming in games that do not use more than four cores, which is 95% of games, is this true? - See more at: http://www.tomshardware.com/answers/id-2696381/questions-intel-devil-canyon.html#sthash.wVCGWMRi.dpuf

Yes. See http://www.anandtech.com/show/8426/the-intel-haswell-e-cpu-review-core-i7-5960x-i7-5930k-i7-5820k-tested/6

If I buy an MSI Z97 MPOWER MAX AC motherboard which features PCIe 3.0 x16 slots but the Devil's Canyon only has 16 PCI express lanes, does that mean that two-way SLI GeForce 980 Ti's will each run at PCIe x8 speeds? Yes

Will this cause a bottleneck and performance loss? No

Since the processor runs at a very high 4.4GHz with turbo boost activated, does that mean I will have to use advanced water cooling? No.

Or can I get away with using a ZALMAN CNPS9900 MAX without overheating? Yes, unless you want to overclock the CPU.

The Devil's Canyon 4790K is on par with, or outperforms the Haswell-E in four-threaded gaming? Yes - see the link above.

 

[PCBuilderProbs]

I believe there are some games that use more than 4 cores, yes. Not many, but there will be plenty more with upcoming DX12 that will support 6/8 core gaming.

PCI-E 3.0 x8 = PCI-E 2.0 x16, which nothing that we currently have has maxed out yet (so no bottlenecking will occur)

The i7 4790k runs at stock 4.0 ghz. To overclock above that you'll need an aftermarket heatsink.

The Devil's Canyon i7 does not outperform Haswell-E because it can max out any game to this day on stock speeds because of its hyperthreading. It's expected that when multi-core CPUs can support games that the Haswell-E processors will show up as having better performance over the 4790k, but for now, (in terms of gaming) the i7 4790k runs on par with the Haswell-E processors.

For gaming, don't go beyond the 4790k.

 

[ambam]

I believe there are some games that use more than 4 cores, yes. Not many, but there will be plenty more with upcoming DX12 that will support 6/8 core gaming.

PCI-E 3.0 x8 = PCI-E 2.0 x16, which nothing that we currently have has maxed out yet (so no bottlenecking will occur)

The i7 4790k runs at stock 4.0 ghz. To overclock above that you'll need an aftermarket heatsink.

The Devil's Canyon i7 does not outperform Haswell-E because it can max out any game to this day on stock speeds because of its hyperthreading. It's expected that when multi-core CPUs can support games that the Haswell-E processors will show up as having better performance over the 4790k, but for now, (in terms of gaming) the i7 4790k runs on par with the Haswell-E processors.

For gaming, don't go beyond the 4790k.

So not even the biggest baddest GPU's today like the Titan X and dual-core cards can fully saturate all of the bandwidth of a PCIe 3.0 x8 slot which is essentially a PCie 2.0 x16?

Two 980 Ti's in two PCI 3.0 x8 slots of a Z97 mobo will not experience any bottlenecking whatsoever?

 

[PCBuilderProbs]

yes. Nothing, and I mean it, NOTHING, probably in the next 5 years too, will use the full bandwidth of PCI-e 2.0 x16, (PCI-e 3.0 x8)

 

[i7Baby]

So not even the biggest baddest GPU's today like the Titan X and dual-core cards can fully saturate all of the bandwidth of a PCIe 3.0 x8 slot which is essentially a PCie 2.0 x16? Nup

Two 980 Ti's in two PCI 3.0 x8 slots of a Z97 mobo will not experience any bottlenecking whatsoever? Not the pcie slots anyway.