OR bench: GTX 980 or 780 Ti - PMC kernel

Sat Jan 17, 2015 9:23 pm

Hi!

I'll buy new videocard for work PMC kernel because EVGA GTX 580 3GB had freeze problem in some games - RMA replaced to GTX 770 2GB but I don't like 770 due to the weak GPGPU and to the VRAM "downgraded".

Is GTX 980 or 780Ti faster videocard at PMC kernel running OR benchmark?

Sun Jan 18, 2015 4:38 am

The 780ti is faster.

Sun Jan 18, 2015 12:20 pm

Thank you.

Thu Mar 12, 2015 11:16 am

I'm very confused...
New octanebench... GTX 780 Ti@reference is slower than GTX 980@reference!??? True or false?

Thu Mar 12, 2015 11:27 am

nuno1980 wrote:I'm very confused...
New octanebench... GTX 780 Ti@reference is slower than GTX 980@reference!??? True or false?

COOLING makes a big difference in performance (up to 30%) so in that extent..there's no single answer to Your question. It depends on environment, to be more exact: Your case, fan speed curves, space between cards..- in one word Airflow.

Does that answer/explain Your question(s)?

Thu Mar 12, 2015 11:40 am

glimpse wrote:COOLING makes a big difference in performance (up to 30%) so in that extent..there's no single answer to Your question. It depends on environment, to be more exact: Your case, fan speed curves, space between cards..- in one word Airflow.

Does that answer/explain Your question(s)?

Ok.

Very important: do NOT do overclock! I do NEVER overclock for my videocard.

Thu Mar 12, 2015 11:58 am

You do not need to overclock, Your card OC itself if it finds more headroom & it's temperature allows to do that safetely (it's part of boost2 technology).

OC is not a bad thing on it's own, if You have enough cooling capacity (Sebastian, aka Smicha, proved that 3x 780 could be faster than 4x =) so in this case it's well worth to spend some extra money..

but it's not for everyone for sure =) if You're interested feel free to read my site for more info. I'll do a simple article about this OctaneBench asap explainig why we see some difference in results & how to get the best of it if You look for an upgrade =)

Thu Mar 12, 2015 12:08 pm

glimpse wrote:You do not need to overclock, Your card OC itself if it finds more headroom & it's temperature allows to do that safetely (it's part of boost2 technology).

OC is not a bad thing on it's own, if You have enough cooling capacity (Sebastian, aka Smicha, proved that 3x 780 could be faster than 4x =) so in this case it's well worth to spend some extra money..

but it's not for everyone for sure =) if You're interested feel free to read my site for more info. I'll do a simple article about this OctaneBench asap explainig why we see some difference in results & how to get the best of it if You look for an upgrade =)

Ok. My 780Ti Classy has ACX cooler.

I use auto fan custom with 100% fan speed since ~72 ºC or hotter.

My real boost is 1150MHz (boost default 1085).