We don't measure "hash correctness", this is not an issue. We measure stability by whether or not the GPU hangs at certain frequencies.
And you could easily measure "hash correctness" by running a list with known plaintext values and ensuring that 100% were cracked. But I've never seen this happen where the card will stop finding plains when overclocking.
And you could easily measure "hash correctness" by running a list with known plaintext values and ensuring that 100% were cracked. But I've never seen this happen where the card will stop finding plains when overclocking.