Is there a huge performance difference in the same generation ? Not just with games I mean with everything.
I know a i9 will produce more heat.
I know a i9 will produce more heat.
I7 and i9 have the exact same TDP limit, unless you overclock they will both produce the exact same amount of heat.Highly parallel stuff gets done faster, at the expense of tons of heat output.
With both the 13700k and the 13900k running at 253W hard limit the 13900k is 27% faster in average in a pretty big sample of apps.If the i9 is limited to the same TDP, it will underperform compared to the i7. If it is allowed to go unlimited, it beats the i7 with more heat generated.
They don't. Check these PL1/PL2/ICCMAX values, from datasheet:I7 and i9 have the exact same TDP limit, unless you overclock they will both produce the exact same amount of heat.
If you DO overclock the i9 has more cores and will still clock all of them to the same degree as the i7 will so of course it will also need more power to do so.
THIS TOPIC IS FROM TODAY.They don't. Check these PL1/PL2/ICCMAX values, from datasheet:
Core i7 12700 65W 180W 220A
Core i9 12900 65W 202W 240A
Core i7 12700K 125W 190W 240A
Core i9 12900K 125W 241W 280A
No I didn't forget, that's what I said in my first response, going above the stated TDP is overclocking, you are saying it yourself that they are not respecting default values.Also, you're forgetting that you have Motherboard vendors like MSI that likes to use unlimited (4095W) PL1/PL2/ICCMAX values out of the box, so they will always consume significantly more because Intel default values are not even respected to begin with.
Thanks to binning, 12700K would be more leakier silicon so it would hit thermal limits much sooner than the 12900K. But I suppose that would be true if the E-cores are disabled. With the extra E-cores enabled on the 12900K, it's gonna have a harder time than the 12700K in dealing with the extra heat.Also if your argument is that mobos overclock then how do they only overclock the 12900k but not the 12700k?
Thermal limits are the same at 100 degrees, leaking will just make one need more Vcore than the other increasing the amount of power used to get to the same clocks.Thanks to binning, 12700K would be more leakier silicon so it would hit thermal limits much sooner than the 12900K. But I suppose that would be true if the E-cores are disabled. With the extra E-cores enabled on the 12900K, it's gonna have a harder time than the 12700K in dealing with the extra heat.
Why would you ever pay for something and then not use it?!Also, would it make sense to just get one with good P cores, tweak them and disable the E cores so I could stay on Windows 10? Questions I am not sure are so straight forward.
Why would you ever pay for something and then not use it?!
Windows sends threads to processors in a round robin fashion which means that game threads can end up on the e-cores which I guess is the issue you are talking about, but it also means that even in win 10 background tasks are going to be send to the e-cores as well instead of only running on the p-cores so shutting them off will reduce performance if you have something else running as well.
The way to keep all the game threads on the p-cores would be to start any game that has issues with an affinity mask, either using process lasso or just making a shortcut (or steam startup settings) with the mask.
You could do the same to background tasks that use up a lot of CPU just sending them to the e-cores instead.
You only have to do it once for any app that causes issues, if you don't want win 11 it's a small price to pay.
Microsoft how to set priority permanently
CPU Affinity Mask Calculator
on GitHub How to Set the CPU Affinity of a Windows Process The best way is to use Process Lasso’s rules to create sticky CPU affinities that persist. Process Lasso CPU Affinity Rules Do…bitsum.com
Unless you run a heavy duty workload on the cores they are going to be using very little power, if you don't run anything on them they are going to be close to zero if not zero, the C states are really doing good work, just look at power draw at idle.A good suggestion, but what about the possibility of giving a larger power budget to the P cores, in hoping that with some tweaking they would have better performance than they would with E cores tagging along. I think this has been talked about before, but I am not sure what the consensus is, if any.
A good question, I believe it may depend on the generation somewhat. For instance, I have often wondered, if I were to build a new gaming PC, would it make more sense to go with the 13700KF or 13900KF? Or a 12th gen option? Or wait for the 14th generation and/or refresh of Raptor Lake?
Also, would it make sense to just get one with good P cores, tweak them and disable the E cores so I could stay on Windows 10? Questions I am not sure are so straight forward.
As for the OP, are there any paticular CPUs you are comparing or thinking of buying? And what is your use case?