9900k 4.8ghz Voltage

[Tommy_Here]

Hi all,

Since I’ve had my 9900Kf it’s a great CPU but does it run hot! Especially vs my delidded 8700k. Delidding this isn’t an option due to the higher risk and lower results.

I had my 8700k at 5.0ghz and this cpu at the same clock speed gets too hot during realbench - mid 80s low 90s this was at 1.370 voltage - I’ve since found that 1.165 voltage (CPUz) reports 1.184v for a all core 4.8ghz and temps haven’t topped 68 degrees - is this a good voltage? Happy to take the very small hit on single core performance for the extra 2 cores 4 threads

 

[Tommy_Here]

Edit - just crashed so trying 1.175 which equates to 1.200 cpuz

 

[Mr Mcgoo]

my 10700k which is really a low binned 9900k is doing 4.7 stock at 1.15v. it can do 4.8 at 1.175, 4.9 at 1.22v and 5ghz at 1.25. i would say 1.175-1.2v is a good spot for the 9900kf at 4.8ghz. 1.165 was a bit low as you found out.

 

[Tommy_Here]

1.232 voltage seems to be fully stable with 1 hour realbench, prime 95 30 minutes and cinebench stable. As a stop gap till 14th gen 8 cores 16 threads 4.8 GHz will do fine whilst keeping temps and noise down

 

[Mr Mcgoo]

1.232 voltage seems to be fully stable with 1 hour realbench, prime 95 30 minutes and cinebench stable. As a stop gap till 14th gen 8 cores 16 threads 4.8 GHz will do fine whilst keeping temps and noise down

Seems to be average voltage at that clock speed. so no golden chip or anything. More than enough for a good while. but the 14th gen would blow that 9900kf out the water. hell even a 12400 is on par with a 9900k at stock.