Question about Stress Testing
Question about Stress Testing
I have an overclock on my i5-4690k at 4.5 Ghz and 1.186V. On prime95 Blend, temperatures stay around 80 degrees, but during Small FFTs tests they reach 90-95 degrees. I understand gaming won't cause such high temps, but should I still reduce the overclock?
Prime95 (in newer releases) also places significant emphasis on the AVX instruction set. Unless your tasks depend on AVX, then minor FFT operations are likely unnecessary for a stress test.
I wouldn't aim to reduce clock speeds. Generally, most systems perform best around 1.2-1.25V at 4.5GHz. If you're running at 1.186V with a good motherboard and cooling, you should still have room to go beyond 4.5GHz. A jump to 4.6 or even 4.7GHz could be possible. Around 1.3V is probably the safe upper limit for a standard CPU.
Please note there are no assurances about 4.6 or 4.7, but with that level of voltage flexibility you're in a better position than many others.
Prime95 (in newer releases) also places significant emphasis on the AVX instruction set. Unless your application depends on AVX, then minor FFT operations are likely unnecessary for a stress test.
I wouldn't aim to reduce clock speeds. Generally, most systems perform best around 1.2-1.25V at 4.5GHz. If you're running at 1.186V with a compatible motherboard and proper cooling, you should still have room to go beyond 4.5GHz. A jump to 4.6 or even 4.7GHz could be feasible.
Around 1.3V is probably the safe upper limit for a standard CPU.
Please note there are no assurances about 4.6 or 4.7, but with that level of voltage flexibility you're in a better position than many others.
Barty1884:
Prime95 (newer versions too) emphasizes the importance of AVX instructions. Unless your tasks depend on AVX, then minor FFTs aren't necessary for a stress test.
I wouldn't aim to reduce clock speeds. Most systems perform well around 1.2-1.25V at 4.5GHz. If you're running at 1.186V with a good board and cooling, you should easily exceed 4.5GHz. 4.6 or even 4.7GHz could work.
Around 1.3V seems to be the typical safe limit for a standard CPU.
Of course, no assurances for 4.6 or 4.7, but with that kind of voltage flexibility you're in a better position than most.
Thanks I'm not technical enough to grasp all this
Some might disagree, but I’m okay with Blend-stable. I’ve never seen game CPU temps exceed what it produces so... But... I’d keep an eye on gaming temperatures and if you’re consistently around 80, you’d want better cooling. I’d feel more at ease in the 60-70°C range while gaming.
Don't stress too much, it's mostly beyond my understanding either :lol:
In general, if you require AVX support, you'd be aware of it.
A simple approach would be to see how Prime95 utilizes 100% of the CPU.
For everyday use, only about 80% is typically used. For real-world testing, focus on your performance when pushing 100% of that 80%.
If you never use the remaining 20%, it doesn't affect your stable temperatures, clocks, or voltage readings.
Hope this clarifies things?
in general you set a high overclock limit and then lower it by about ten percent. Therefore, you shouldn't be running at full capacity every day. Are the temperatures excessive? You need to figure out what temperature is too high. Many people consider a maximum of 80 to 85 degrees Celsius for the highest overclock setting. But if you prefer, you can push it further until it fails (after all, it's your choice).
What cooler are you using and does your case provide adequate airflow? You can view my 4690k overclock details below while running a Noctua NH-D14 cooler inside a modified Antec Nine Hundred case. (I adjusted the CPU-Z temperature stamp by leaving the PC outside when it was 35°F, lol.)