The title pretty much says it all, I recently purchased a Gefore GTX 780ti Ghz edition and on many games, (Tomb Raider, Assassin's Creed 4, Farcry 3, Borderlands 2 + more) often get artifacting and the games crash without fail (when playing on high settings).
I have spent the past week looking for fixes and earlier today I tried under-clocking the card and that seems to have fixed the problem. With the under-clocking there is no artifacting or crashes, but has greatly reduced my frames (as can be expected)
Orginial clocking : GPU - 1085/1150MHz and Memory = 7000MHz
My under-clocking: GPU - 980/1045MHz and Memory 6000MHz (don't know if this is what I should be underclocking to, but it fixed the crashes)
EDIT: Are there any better speeds to clock down to?
Does this mean I have a faulty card and should replace it under warranty?
Thanks for taking the time to read my post
More about :gtx 780ti game artifact crashes clocking fixes problem faulty card
If you get artifacts at the STOCK frequencies that it shipped at then you can RMA the card.
If you have OVERCLOCKED it yourself however that is not covered.
What "values" are recommended?
Whatever stops the artifacts.
Not all games will produce artifacts either so just because you think you're safe doesn't mean you are. I recommend using a benchmark utility such as the one Metro 2033/LL has (start from main folder), 3DMARK series, or similar, however do NOT use something like Furmark that isn't realistic towards normal game usage.
The MEMORY is likely the biggest culprit since it's artifacts and not just crashing. That means the data in your VRAM is likely corrupted.
Thus, I would put your GPU frequency back to the stock setting and leave VRAM at 6300MHz then:
1) Run a benchmark in a loop for at least 15 minutes to stress the card
2) If stable up VRAM by 100MHz
3) Repeat until you have issues then use the last stable value
Yes, I am getting artifacting and crashes at the stock frequencies of GPU - 1085/1150MHz and Memory = 7000MHz. (the card I have is factory overclocked)
I took the GPU clock down to 980/1045MHz and kept the Memory clock at 7000MHz and games haven't been crashing, although I will try your suggestion of running a benchmark utility for 15mins using 3DMark with different configurations.
Ok, so I did some benchmarking and tested it in the games I have been having problems with. I tried different clock speeds and the speed I am able to get to without any crashing/artifacting is 1044/1109MHz, which is 41MHz under the factory clock. I am able to keep the Memory clock at the factory 7000MHz.
I don't know if this is normal or not, but the GPU gets to speeds that are higher then what the clock is set to. Example: The CPU is clocked at 1044/1109MHz but runs up to 1188. This happens at whatever clock I set the card to.