6700k for pcie lanes

[AbleArcher4790k]

worth upgrading from 4790k for 20 lanes over 16 for say pci ssd support or no?

[EarthboundHero]

Unless you're doing SLI/Crossfire then no.

[BoredErica]

Unless you're doing SLI/Crossfire then no.

Why does SLI/Crossfire change the equation?

[EarthboundHero]

Why does SLI/Crossfire change the equation?

If he's doing SLI he needs all 16 lanes, and then he couldn't use the SSD. Crossfire doesn't matter as it doesn't have a minimum amount of lanes.

[ANewFace]

worth upgrading from 4790k for 20 lanes over 16 for say pci ssd support or no?

Nope, unless you want to do 2 way SLI and have some other card

[ANewFace]

If he's doing SLI he needs all 16 lanes, and then he couldn't use the SSD. Crossfire doesn't matter as it doesn't have a minimum amount of lanes.

It has a minimum of 4 lanes

[EarthboundHero]

It has a minimum of 4 lanes

Crossfire does, but that'll be fine for an SSD and 2 cards.

[ANewFace]

worth upgrading from 4790k for 20 lanes over 16 for say pci ssd support or no?

And the 6700K has only 16 lanes

[ANewFace]

Crossfire does, but that'll be fine for an SSD and 2 cards.

But the 6700K has only 16 lanes

[Fgtfv567]

Wait, I thought it was an almost direct rebrand of the 4790K, so it'd only have 16 lanes

Edit: I went to ark.intel, turns out I am right!

[AbleArcher4790k]

i have two zotac extreme 980 ti's 

[AbleArcher4790k]

ohh i just read something said 20 hate bs articles lol

[TheProfosist]

Why does SLI/Crossfire change the equation?

It doesnt because its only additional lanes through the chipset not the cpu

basically they added the ability to have a PCI-E 3.0 x4 M.2 SSD and not impact the layout your used to for additional devices and slots. Hopefully this makes sense? They also allowed the manufacturers far more control of what they use the chipset lanes for rather than dictating that certain things must be used. Likely unless your on the real highend boards itll be the same as normal except you can have a M.2 SSD as mentioned about without disabling stuff which is what happened on Z97 on many boards.

[EarthboundHero]

But the 6700K has only 16 lanes

Yep, double checked. You're right. I remember watching a video that said it had 20, I think it was TekSyndicate

[ANewFace]

Wait, I thought it was an almost direct rebrand of the 4790K, so it'd only have 16 lanes

It does have only 16 lanes

[AbleArcher4790k]

yeahh that was my mistake they said z170 boards can handle 20 lanes

[TheProfosist]

Nope, unless you want to do 2 way SLI and have some other card

you still have a 4x slot on most ATX z87 and Z97 boards...

 

It has a minimum of 4 lanes

yes but the additional lanes would be through the chipset. Also prior to X99 and Z170 the chipset was only PCI-E 2.0

 

ohh i just read something said 20 hate bs articles lol

yes the chipset has 20lanes with its new DMI link to the CPU.

[BoredErica]

It doesnt because its only additional lanes through the chipset not the cpu

 

That's why I asked.

[TheProfosist]

Yep, double checked. You're right. I remember watching a video that said it had 20, I think it was TekSyndicate

Correct Z170 has 20 lanes this is through the DMI link to the CPU

It does have only 16 lanes

yes the CPU itself has 16 direct lanes usually use for low latency stuff like GPU's

yeahh that was my mistake they said z170 boards can handle 20 lanes

they can as I have been trying to state.

[TheSLSAMG]

And the 6700K has only 16 lanes

 

But the 6700K has only 16 lanes

 

It does have only 16 lanes

The chipset has lanes. The SSDs and peripheral crap runs off of the chipset's lanes while the CPU's lanes handle GPUs. It has 16 PCI-e 3.0 lanes. The chipset has more PCI-e 3.0 and 2.0 lanes IIRC.

[TheProfosist]

That's why I asked.

I mean you do get more lanes but not for GPU's. Its for the other new stuff that requires PCI-E like M.2, SATA-E, USB 3.1 controllers, thunderbolt, and maybe USB type-C.

[BoredErica]

While I'm here, might as well ask a question.

 

Can an Intel 750 be run on CPU lanes on the x99 platform? (Similarly, is it possible to run a 750 off of the x16 PCIE lane  on Skylake if I don't use a discrete GPU? Using CPU lanes instead of chipset lanes.)

[Fgtfv567]

The chipset has lanes. The SSDs and peripheral crap runs off of the chipset's lanes while the CPU's lanes handle GPUs. It has 16 PCI-e 3.0 lanes. The chipset has more PCI-e 3.0 and 2.0 lanes IIRC.

Wait, do ALL SSDs run off of the chipset's lanes? If you plug it into the PCI-E slot, doors it use CPU lanes?

[TheProfosist]

The chipset has lanes. The SSDs and peripheral crap runs off of the chipset's lanes while the CPU's lanes handle GPUs. It has 16 PCI-e 3.0 lanes. The chipset has more PCI-e 3.0 and 2.0 lanes IIRC.

They are 3.0 now due to DMI 3 which came on X99 and is now in Z170 and Skylake CPUs. Thing is whit chipset lanes you cant max all of them at once and there is not enough bandwidth in the DMI link. This as show with Haswell and greater than 3 drive RAID 0. That wont be and issue not but now there are M.2 PCI-E 3.0 x4 SSDs. More than one of those will probably cause bottlenecks potentially. but you can RAID them now so we'll see.

[othertomperson]

Wait, I thought it was an almost direct rebrand of the 4790K, so it'd only have 16 lanes

Edit: I went to ark.intel, turns out I am right!

 

Uhh no you are not right. 6700k is Skylake. It's not only a completely different micro-architecture to Haswell, but it's not even on the same manufacturing process. It's completely incorrect to call it a "rebrand" o.0