Hi ! Can somebody explain this : I get better hashrate on i5-4460 than i5-4690 and this is happening only on cryptonight; and can't be a technical issue because I have tried on other coins ( not cryptonight ) and there, things are going logical , 4690 of course better hasrate than 4460. Thank you for the answers !
How many threads are running the miner on?
For cryptonight each thread requires 2MB of CPU cache memory for optimal speed.
So both your CPU should get best results using 3 threads becuase they have both 6MB cache.
I also recommend using xmrig miner.
How is hte cooling? If the CPU runs too hot it might start to downthrottle the Clock frequency.
Maybe the slower CPU is cooled enough because it runs at lower Clock frequency and then it does not throttle because of heat.
But the faster CPU might get too hot and start throttling.