GTX980 Ti G1 Overclocking
GTX980 Ti G1 Overclocking
I experimented with stock on 1080p and it performed well, though I always seek the most stable 24/7 clock for my card. I adjusted the core frequency by +100mhz, added +87mV, +110 Power Limit, and it worked fairly well—gaining around +6fps in Heaven and +9fps in Valley. In Firestrike, I achieved a better score (over 20k GPU) but my card throttled from 1503mhz to 1468mhz. What options do I have? My EVGA SuperPower 850w G2 PSU seems sufficient, so perhaps it's just a matter of luck.
I haven't pushed Firestrike to its full power consistently across all areas.
It's true, 1500Mhz is at the higher side for Maxwell. What temperatures are you experiencing? If you check GPU-z, there should be a section in monitoring named perfcap. It will explain why your card is losing a few boost bins.
It seems like you're likely referring to a power limit. In reality, anything close to 1500 is reasonable, though GPU-Z would be the most accurate choice.
Ok then I have one clear question.
Since I'm doing +139 on power limit (thats the number yes), and I'm not touching voltage (in any case there is throttling), at the moment I have
Core Voltage - 0
Power Limit - 139
Core Clock - +120
Memory Clock - +300
Temp is going between 60 and 64 in Valley and Heaven since I reduced my aggresive fan.
Heaven 101.7fps (+9.6fps comparing to stock)
Valley 103.5fps (+11fps comparing to stock)
The only problem which I have here is that my core clock from 1500mhz drops to 1486mhz during those benchmarks at one point. Should I leave and ignore that ? I mean overall result is there, can that harm my gpu in any way ? Other then that this looks solid to me.
Operating above 62-63c may lead to slight throttling with Maxwell, as it seemed a reasonable approach. I reduce to 1486Mhz from 1495Mhz at 63c.
Throttling is entirely typical. It doesn't indicate any issues with your PC. I'll leave the clock aside now, as I'm seeing significantly better FPS in tests.