post #1 of 1
Thread Starter 
Hello dear overclockers,

I saw that there was already a topic about my GPU in the "Nvidia" forums, but I thought that my questions were better asked in their own post instead
of just dropped in another thread.

Soooo I bought a Gigabyte G1 980 Ti as mentioned in the title, about 3 months ago.

Since I didn't really have the time to play with it when I bought it, I'm just trying to tweak the oc's settings for a couple of weeks now. And to be honest, I'm a bit disappointed.
With nearly every comment I read talking about getting easily 1500MHz on core clock and saying this card is a beast when it comes to overclocking, I was expecting
much more.

Don't get me wrong, I'm fully aware that each GPU is quite different from another, there is a ton of unknown in the overclocking equation.

But still, with my chip (75% ASIC quality if anyone wants to know) really struggles with more than 1440 MHz on core. I carefully tried to increase incrementally clock speed,
until I reached those 1440ish, and then, I tried to tweak voltage, by small 6mV steps. And that's the weirdest part, there was no gain AT ALL with increased voltage !
I know sometimes higher voltage can add instability rather than stability (even if I never saw such a thing), but with 75% ASIC quality, Gigabyte "GPU gauntlet sorting" and
a Cooler Master V850 PSU, I was really expecting better results. (FYI, with default profile, the card oc itself at about 1370 MHz, which is already quite good, hence my surprise
when trying to increase clocks and voltage)

I tried to switch the PSU, first a Antec 600W (quite low-end), then a Corsair RM 750, and same results. The PSU isn't the problem. I also tried to disconnect my 660 Ti,
just in case, same results again. I tested different OC software too (I don't think the impact is important, but who knows), no difference whatsoever.

Another weird thing, when on full load (benchmark/games) and a +87mV, the TDP isn't going higher than 105% (rarely to 110%) even if it's unlock to 130%.

I oced other GPU before, my old 660Ti, my gf's current 980 and her old 660. The three of them have 65%+ ASIC, they have custom coolers, and they all got more or less to
high clock speed compared to what I saw from the same cards. I used the same procedure for my 980Ti and that didn't work so good.

So here it is, I was wondering what do you guys have to say about that. Is something different on Gigabyte cards ? Is there something else I missed ? I'm pretty sure
it's just bad luck with my particular chip (the card performs like a charm as it is, it still rocks don't get me wrong !), but I wanted to see if there was something
else to try wink.gif

Thanks !
Desktop
(13 items)
 
  
CPUMotherboardGraphicsGraphics
Core i5-3570K @ 4.5 GHz Asus P8 Z77V-LK Gigabyte G1 Gaming GTX 980 Ti 6G Asus GTX 660 Ti DCUII 2G 
RAMCoolingOSMonitor
Corsair Ballistic 16Go (2x8) 1600MHz DDR3 Cooler Master Hyper EVO 212 Windows 10 64 bits Acer G247HYUbmidp 23.8" 1440p IPS 60 Hz 
MonitorKeyboardPowerCase
Samsung S22B350H 21.5" 1080p TN 60 Hz Cyborg V7 Cooler Master V850 Cougar Challenger (mid tower) 
Mouse
SteelSeries Sensei [RAW]  
  hide details  
Reply
Desktop
(13 items)
 
  
CPUMotherboardGraphicsGraphics
Core i5-3570K @ 4.5 GHz Asus P8 Z77V-LK Gigabyte G1 Gaming GTX 980 Ti 6G Asus GTX 660 Ti DCUII 2G 
RAMCoolingOSMonitor
Corsair Ballistic 16Go (2x8) 1600MHz DDR3 Cooler Master Hyper EVO 212 Windows 10 64 bits Acer G247HYUbmidp 23.8" 1440p IPS 60 Hz 
MonitorKeyboardPowerCase
Samsung S22B350H 21.5" 1080p TN 60 Hz Cyborg V7 Cooler Master V850 Cougar Challenger (mid tower) 
Mouse
SteelSeries Sensei [RAW]  
  hide details  
Reply