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Need help finding a stable overclock

Tags:
  • Overclocking
  • Benchmark
  • Memory
Last response: in Overclocking
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November 26, 2013 3:02:14 PM

So I recently picked up a 780ti and wanted to overclock it. This is my first serious card and first time really overclocking. So I looked up a few guides on how to do it and was on my way. I used Valley Benchmark for my overclocking btw. I first did memory overclock, and after finding a stable offset of 400, moved to the GPU. After much testing, I got it to what I thought was stable at a GPU offset of 240 and a memory offset of 300. I ran valley bench mark a few times and was getting scores between 4800-5001. Everything seemed fine! I even started gaming with that overclock and everything seemed fine! No artifacts, etc. I even turned down both offsets by 5 mhz and benchmarked that to see if my score would go up or down and it went down. So I thought I was done. Today I decided to run OCCT with my overclock and after an hour got like 20,000 errors. I had no idea I was that unstable. Games were playing just fine with the overclock. I then ran valley benchmark again and low and behold, I get crazy artifacts all over the screen. So I reduced by 5 mhz to 235 offset on the core, and 295 on the memory. I ran valley a bunch of times and everything seemed ok. No artifacts. I even got a higher score this time of over 5000 on two separate tests. I then decided to run OCCT for an hour just to be sure. After one hour I got 1 error. I'm assuming that 1 error is ok, as after reading other peoples findings, when your card is not stable, it gets numerous errors. Furthermore, I noticed that after gaming for a while and then doing a benchmark, my scores are significantly lower. This is understandable as the card is warmed up rather then starting cold. Can I just play on an overclock that doesnt seem to crash my games? Or should I tune it all the way down were I don't get any errors in OCCT, no artifacts in Valley, etc?

These are my results from the overclocks

GPU offset: 240
Memory offset: 300
Scores: 4984, 4972, 5000
Average Framerate: 119.5
Framerate boost in BF4 and Crysis 3: 10 FPS


GPU offset: 235
Memory Offset:295
Scores 5001, 5008
Average Framerate 119.9
Framerate Boost in BF4, Crysis 3: 8 FPS

Note: both of these tests were done before gaming at all. After gaming and running the tests again, neither of these overclocks go over 5000 in Valley Benchmark. Also, both were reaching around 77 C in the benchmark tests.

After playing games for a while and running the benchmarks again, both scores go down to around 4800 and 4700 respectively. I decided to stick with the overclock that only got 1 error and gets 8 fps gains.

Thoughts?

More about : finding stable overclock

a b K Overclocking
November 26, 2013 9:40:21 PM

My thoughts=wall of text.
May as well go with something that not going to lock up in the middle of a game or something. :) 
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