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[Official] NVIDIA GTX 1080 Ti Owner's Club - Page 1428

post #14271 of 15178
Quote:
Originally Posted by Agent-A01 View Post

So what VRAM clock are you running at?

I'm using +499 which equates to 460-470 GB/s.

I forced P2 off in cuda, VRAM shows max clock; core does not max out.

You're getting 460 - 470 GB/s with a +499?

With a +499 I'm only getting 387 GB/s - 407 GB/s

Despite fact that with a +575. (My max stable VRAM overclock - tested for stability using OCCT) I get 393 - 411 GB/s (reason I mention this -- is it IS still increasing). In fact it even keeps increasing past the point of stability.

I can't find "P2 CUDA VRAM SPEED THROTTLE" option when I download & open 'nvidia Profile Inspector'.
Edited by nrpeyton - 10/3/17 at 5:51pm
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post #14272 of 15178
Quote:
Originally Posted by nrpeyton View Post

I can't find "P2 CUDA VRAM SPEED THROTTLE" option when I download & open 'nvidia Profile Inspector'.

With a +575. (My max stable VRAM overclock - tested for stability using OCCT) I get approx. 411 GB/s.

Setting category 5, CUDA Force P2 state. Set this to OFF from the default of ON.
Quote:
Originally Posted by outofmyheadyo View Post

Why would a 2070 beat 1080ti,1080 was barely faster than 980ti when launched.
And knowing how nvidia likes to release the potato GPU-s first and then months later release the good cards like 1080ti, so they can ofcourse milk everyone, with titans.

The 980ti was an anomaly. It was a rare combination of being able to overclock well above and beyond it's original performance bracket and able to be BIOS modded to allow more voltage. The same cannot be done to the 1080ti so I am confident the 2070 can match the 1080ti or only lags very slightly (makes sense, you buy yesterday's flagship at a discount).

this "milking" you speak is probably the only way new GPUs will be funded lol. It is an engineering marvel that they can still deliver 35% performance gains across generations on a yearly cadence. We as consumers have become a little entitled we have forgotten that these things are extremely costly and time consuming to fabricate, in a time where shrinking the process node increases cost rather than the opposite in yesteryears. Considering Pascal cost $1 Billion to make, I think it is a perfectly reasonable approach for sustainable long term growth
Edited by Dasboogieman - 10/3/17 at 5:52pm
post #14273 of 15178
~470GiB/s out of a maximum theoretical of 484.

Real memory clock is 1485MHz (+433 in MSI AB, or 5940 QDR, or 11880MT/s), which is the highest whole number memory multiplier (real memory clock divisible by the 27MHz reference clock) that's stable in all tests I can find at the temp limit I have set (68C).

Core clock during the benchmark was 1569 due to the low load on the GPU itself.

http://cdn.overclock.net/8/8b/8bc1e5ce_1080tibandwidth.png
Edited by Blameless - 10/3/17 at 6:01pm
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post #14274 of 15178
Quote:
Originally Posted by Blameless View Post

~470GiB/s out of a maximum theoretical of 484.

Real memory clock is 1485MHz (+433 in MSI AB, or 5940 QDR, or 11880MT/s), which is the highest whole number memory multiplier (real memory clock divisible by the 27MHz reference clock) that's stable in all tests I can find at the temp limit I have set (68C).

Core clock during the benchmark was 1569 due to the low load on the GPU itself.

That is good, if it was misaligned, you'd be seeing 440GB/s ish give or take 10.
post #14275 of 15178
Quote:
Originally Posted by Dasboogieman View Post

Setting category 5, CUDA Force P2 state. Set this to OFF from the default of ON.

Nice one. That little option in the Nvidia Profile Inspector just increased me to:

458 - 474 GB/s @ + 499

&

464 - 481 GB/s @ +575

Thanks :-)

I still seem a lttle behind what you're getting though -- you're still beating my + 575 even with your +499

Increasing my core clock didn't help. (In fact result was actually slightly less).

What does that option actually do, anyway? (apart from increase my vram bandwidth).?
Edited by nrpeyton - 10/3/17 at 6:05pm
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post #14276 of 15178
Quote:
Originally Posted by nrpeyton View Post

That little option in the Nvidia Profile Inspector just increased me to

Without it, anything that touches CUDA will kick the memory clock down to what it is at the next lower power state, which usually costs at least 10% of VRAM performance.

I first noticed this while gaming and recording with NVENC. Recording video kicked my memory clock from 5940 down to 5505 until I figured out what was happening and corrected it.
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post #14277 of 15178
Thread Starter 
Quote:
Originally Posted by nrpeyton View Post

Quote:
Originally Posted by Agent-A01 View Post

So what VRAM clock are you running at?

I'm using +499 which equates to 460-470 GB/s.

I forced P2 off in cuda, VRAM shows max clock; core does not max out.

You're getting 460 - 470 GB/s with a +499?

With a +499 I'm only getting 387 GB/s - 407 GB/s

Despite fact that with a +575. (My max stable VRAM overclock - tested for stability using OCCT) I get 393 - 411 GB/s (reason I mention this -- is it IS still increasing). In fact it even keeps increasing past the point of stability.

I can't find "P2 CUDA VRAM SPEED THROTTLE" option when I download & open 'nvidia Profile Inspector'.

Right click it, Run As Admin.
    
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post #14278 of 15178
Hey guys troubleshooting some stuttering issues, here, even w/ gsync on I'm noticing shakyness when moving now and then as if syncs just going out of whack every few minutes, and its driving me insane.

Tried multipl driver revisions ranging from 378 -> current.

2x 1080ti SLI using the EvGA HB Bridge, ensured its on, ran AIDA64 and got this multiple times.



This is the 3rd RMA from eVGA. Cards are teh Black edition variants. No custom bios.

Any tests I can run to verify if its the card ? I don't wanna have to break my loop apart if I don't have to , but know I'll have to after this. Looking for suggestions though.
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post #14279 of 15178
Quote:
Originally Posted by outofmyheadyo View Post

Why would a 2070 beat 1080ti,1080 was barely faster than 980ti when launched.
And knowing how nvidia likes to release the potato GPU-s first and then months later release the good cards like 1080ti, so they can ofcourse milk everyone, with titans.

"A 1080 was barely faster than a 980Ti" But not a stock 980Ti running stock clocks.

1080Ti's don't overclock nearly as well as 980Ti's did either.
Edited by 8051 - 10/3/17 at 9:30pm
post #14280 of 15178
N/m figured it out, 16x for gpu 1 and 8x for gpu2, guess I gotta wait for my new board to get dual x16....
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