Overclocking Gigabyte GTX 770 (2GB) leads to significant performance drops.
Overclocking Gigabyte GTX 770 (2GB) leads to significant performance drops.
Today I chose to push my Gigabyte gtx 770 to its limits, achieving smooth 58fps at 1080p with a core of 1333mhz and memory at 3855mhz (7710mhz effective). When I increased the memory clock it started throttling significantly, dropping to around 810mhz and 1ghz core. I feared a failure but temperatures stayed under 70°C. I’m concerned my PSU might be struggling, could this be the case? It’s a 620w 80plus bronze Antec Neo Eco 620c. Do I have sufficient power? Should I be concerned about exceeding its capacity? For reference, I also have an i5 2400 and a single hard drive connected to the PSU alongside the 770. After rebooting, the system ran well at stock performance, though it showed some stutter during overclocking.
I wouldn't stress too much, I believe you've reached your ideal overclock.
Typically, once you hit failure, reduce the settings slightly and that's your final OC.
For a machine running nonstop, lower it a bit more to ensure stability.
Monitor temperatures, voltage, performance, etc., to catch any issues early.
Peace
I wouldn't stress too much, I believe you've reached your ideal overclock.
Typically, once you hit failure, reduce the settings slightly and that's your final OC.
For a machine running nonstop, lower it a bit more to ensure stability.
Monitor temperatures, voltage, performance, etc., to catch any issues early.
Peace
I wouldn't stress too much, it seems you've reached your ideal overclock setting. Usually, after testing until failure, you can fine-tune the values and that's your final OC. For a machine that runs nonstop, reduce the settings slightly for better stability. Monitor temperatures, voltage, performance, etc., to catch any issues early.
Peace,
Cheers for the response, I agree—my system is now stable at nearly 8ghz with 1.3ghz core, no overvoltage detected. It looks like the problem was with the voltage, even though it only had a +5mV drop. With a moderate fan profile, it now holds steady around 59°C under load and 35-30°C when fans are off. I managed about 5 extra frames in some games and less stuttering in Forza because of the faster memory. As I approach 2GB, I expect an upgrade to a 970 or 1060 soon!