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3930K vs 3960x vs 4930K vs 4960X which to go for? - Page 3

post #21 of 26
There was a problem onlt with kepler if you anAMD GPu it would run at 3.0 speed.
It is not about native it is just about officialization of the support of 3.0 speed
You can do a sli at 16x16x 3.0 of 1080 on the 3930k easily whitout any problem.
Edited by narutonic - 4/21/17 at 9:12am
post #22 of 26
Thread Starter 
alrighto :3

i was planning on nabbing a 980ti and adding a 2nd down the line possibly :'D ,

also from that VRM thing you showed, seems like it'd be a wise move to invest in beefier vrm cooling from what i read, so i was ethier looking at the alphacool vrm unit and adding it onto an expandable aio, or maybe going to a metal store and picking up a copper block and having some fins added onto it or something (along with adding a extra fan or two to my case)
post #23 of 26
Quote:
Originally Posted by Krzych04650 View Post

It doesn't natively support 3.0.

Here is what Nvidia says about it:
http://nvidia.custhelp.com/app/answers/detail/a_id/3135/~/geforce-gen3-support-on-x79-platform

So basically you can force it, but there is no guarantee for it to work properly. Shouldn't be a problem with single GPU though, but still it is worth knowing about all of this before buying.

That's partially true...

It does natively support 3.0 but is not 3.0 certified.

If you check the data sheets it satisfies 3.0 but Intel did not get it officially certified for 3.0, it's the lack of cert is why nVidia has you force it. But SB-E has the full 3.0 bandwidth on supported motherboards.

It was a weird time, transitioning from 2.0 to 3.0, not all motherboards BIOSs supported it, not really any 3.0 cards.

All comes down to the certification, can't officially call it 3.0 without it whether it's fully supported or not.

http://www.intel.com/content/www/us/en/processors/core/core-i7-lga-2011-datasheet-vol-1.html page 10... 8GT/s (3.0 speed)

Used to be annoying because they all have to support it. the Xeon counterparts were officially 3.0 certified but still needed mobo support to recognize the 3.0. One HUGE reason to make sure you go with mobos that get frequent BIOS updates/support

x79 is kind of an oddball platform, it's had it's growing pains, kind of similar to nvme support. Technically it's not suppose to work on x79 but is fully recognized in my BIOS now and works beautifully.
 
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Play Server
(10 items)
 
NAS
(14 items)
 
CPUCPUMotherboardRAM
Intel Xeon L5640 Intel Xeon L5640 Dell R710 Mobo Hynix 144GB DDR3 ECC PC3L-10600R 
Hard DrivePowerCaseOther
Intel X25-M G2 80GB Redundant 840W PSU Dell 710 2.5" - Google Search Appliance Dell Perc H700 Raid Controller 
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Dell iDRAC6 Enterprise Mellanox Connectx-2 10Gb SFP+ NIC 
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Hard DriveHard DriveHard DriveCooling
12x 4TB HGST 5K4000 SanDisk SSD 960GB (cache) 6x 8TB WD Red Scythe AP-29 
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2x Noctua U9DXi4 FreeNAS Corsair AX750 Norco RPC-4224 
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post #24 of 26
Quote:
Originally Posted by narutonic View Post

There was a problem onlt with kepler if you anAMD GPu it would run at 3.0 speed.
It is not about native it is just about officialization of the support of 3.0 speed
You can do a sli at 16x16x 3.0 of 1080 on the 3930k easily whitout any problem.
Quote:
Originally Posted by deafboy View Post

That's partially true...

It does natively support 3.0 but is not 3.0 certified.

If you check the data sheets it satisfies 3.0 but Intel did not get it officially certified for 3.0, it's the lack of cert is why nVidia has you force it. But SB-E has the full 3.0 bandwidth on supported motherboards.

It was a weird time, transitioning from 2.0 to 3.0, not all motherboards BIOSs supported it, not really any 3.0 cards.

All comes down to the certification, can't officially call it 3.0 without it whether it's fully supported or not.

http://www.intel.com/content/www/us/en/processors/core/core-i7-lga-2011-datasheet-vol-1.html page 10... 8GT/s (3.0 speed)

Used to be annoying because they all have to support it. the Xeon counterparts were officially 3.0 certified but still needed mobo support to recognize the 3.0. One HUGE reason to make sure you go with mobos that get frequent BIOS updates/support

x79 is kind of an oddball platform, it's had it's growing pains, kind of similar to nvme support. Technically it's not suppose to work on x79 but is fully recognized in my BIOS now and works beautifully.

Guess I will just have to test it myself if X299 won't be priced well and used Ivy-E 6c/12t chips will still be much more expensive than Sandy-E here. I see huge differences from enabling PCI-E 3.0 on my X79 mobo, so if something won't be right with performance I will see this a second after loading in into Witcher 3. Difference between 3.0 x16 and 2.0 x16 in this game on my SLI setup is like 94 vs 73 FPS in my testing location, so you just cannot miss that. But I hope that Intel will have something interesting. Although baby number of PCI-E lanes on Ryzen does not bode well, Intel can price their chips much higher based just on those 40+ lanes. So probably 6c/12t and 8c/16t 28 lane affordable ones and sky high 40-44 lane ones.
Edited by Krzych04650 - 4/23/17 at 7:55am
post #25 of 26
I agree with you the fact here is that Nvidia didn't activate by default the 3.0 on Sandy Bridge E so that explain this, but if you have an AMD GPU you wouldnt have this issue and PCI E 3.0 would work without issue thumb.gif
post #26 of 26
Quote:
Originally Posted by narutonic View Post

I agree with you the fact here is that Nvidia didn't activate by default the 3.0 on Sandy Bridge E so that explain this, but if you have an AMD GPU you wouldnt have this issue and PCI E 3.0 would work without issue thumb.gif

Yes, but Nvidia did it because of signal issues described in the link I posted. What I am talking about is not a problem of native support from Nvdia because you can force it, but about how it actually works. That's my main concern, we doesn't have any tools to check it other than performance tests, but for this you need to have this CPU, and you can only get it used, and you cannot return things bought used, so it gets problematic. The fact that it works natively on AMD isn't really comforting, they always do things halfway, they probably didn't even check that like Nvidia did. Well they surely didn't because if they did they would have to find the same signal issues, PCI-E slot is PCI-E slot, it meets the specs or not.
Edited by Krzych04650 - 4/24/17 at 4:39am
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