Benchmark questions

[Gorion]

I noticed that my 1080 memory clock rate is not going beyond 5,400MHz, whilst it's supposed to go up to 10,800MHz.  5,400x2 = 10,8000 Coincidence or is there something going on there?

GPU clock was reaching the basic clock of 1771MHz as advertised. The card did not boost to 1911MHz, as perhaps there was no need to?

Ran a benchmark via OCCT, shader complexity 7.  I'm not sure the card was even stressed at all, as the fans didn't even switch on.  GPU temp was stable at 54 degrees throughout a 10 min test.

Can someone shed some light?

[Chaosphere]

No problem with the memory. I'm not sure why it reads as 5400 or why they then advertise it as 10800. With normal RAM in dual channel 1600mhz ram will read as 800mhz per memory slot, so I assume something similar is going on here - but either way all reviews point to memory speeds of around 5000 so yours is working fine.

Re testing it for stability etc...you'd have to try furmark if you want to see it heat up. But if it plays fine then why bother. Most things won't push it anywhere near full load atm.

[Milli]

Yeah everything i've seen is to do with double data rates...

"5000 mhz is the data rate on paper, but 10000 mhz is the "effective speed", it's the same when people use both figures"

https://m.reddit.com/r/nvidia/comments/4oib3u/help_with_1080_memory_clock_3/?sort=top

Sent from my SM-G935F using Tapatalk

[Gorion]

Thanks.

Well, that makes sense I guess.  Sure as hell would be nice to have that explanation written on the box :/

[Milli]

Yeah i wondered same when i ran tests bud. But yeah its perfectly fine

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[Gorion]

I think that my GPU is a lemon.  Driver has been consistently crashing, cleaned with DDU safe mode, reinstalled and issue persists.  Ran Furmark today, and at the 11 minute mark, I started noticing artifacts, and shortly after the driver crashed.

Started up another test, and this time I recorded via shadowplay, and the same thing occured in 4 minutes.  Did some searching and lo and behold, another user with the same issue.  

Going to speak to ocUK about a return, and switching to a different manufacturer.  Might have to wait ages due to general 1080 shortage.  

Stay away from this card: Zotac GeForce GTX 1080 AMP Extreme

[Chaosphere]

Artefacts on a new and stock clocks card is indeed a problem.

Can you put it in another machine see if persists?

Although likely just a card swap is what's needed anyway but wouldn't hurt to try...

[Gorion]

Don't have another machine to test it in.

Clocks aren't exactly stock, as the card is factory OC'ed, however during the benchmark it kept to the Zotac advertised clocks.