Whats the best way to test for error correction when overclocking the memory clock

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NiBy

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Apr 20, 2017
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any apps that can help test this or would i just have to run benchmarks and pay attention to the fps.

gpu: gtx 1080ti
 
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BFG-9000
The corrections in GDDR5 are handled invisibly so for the most part, the only symptom is FPS stops increasing then starts to go down as the clock continues to go up, just as you'd expect. I am not aware of any auto-overclocking program that charts FPS vs clock, so that's something that must be done manually for each card.

Artifacts and crashes don't start to appear until the errors are so numerous and large that they overwhelm the error correction, well beyond the point where performance has degraded.
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timothy273

Apr 12, 2018
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Do you mean testing the stability of the GPU when overclocking its memory clock speed? If yes, I usually run some stress test and then play games to test it out. Benchmark or stress test is more like troubleshooting, the real deal is in the actual gameplay.
 
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BFG-9000

BFG-9000

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Sep 17, 2016
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The corrections in GDDR5 are handled invisibly so for the most part, the only symptom is FPS stops increasing then starts to go down as the clock continues to go up, just as you'd expect. I am not aware of any auto-overclocking program that charts FPS vs clock, so that's something that must be done manually for each card.

Artifacts and crashes don't start to appear until the errors are so numerous and large that they overwhelm the error correction, well beyond the point where performance has degraded.
 
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Solution
BFG-9000

BFG-9000

Splendid
Sep 17, 2016
3,418
438
27,090
I should also point out that what people call the "error correction" of GDDR5 is more error detection, and then retransmission. That's why it's slower--the data is sent over and over again until the checksum comes out correct.

Think about it more like parity instead of ECC, except instead of halting the system with a parity error, the faulty data is discarded and sent again--just as in ethernet or wifi.
 
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