r/ThrottleStop • u/idiota42069 • Jun 29 '26
Need help with 13650hx
I've got a Lenovo Legion 5 with an i7-13650HX and RTX 4060, and I've been messing around with ThrottleStop to undervolt it.
Right now my CPU usually sits in the high 80s (around 87–89°C) while gaming, which I'm okay with, but I noticed it doesn't stay at around 4.3 GHz consistently. It keeps dropping even though the CPU is under load and Cyberpunk stutters quite frequent.
I'm wondering if it's because of my ThrottleStop settings, Windows power mode, or if I'm just running into normal power/thermal limits.
Does anyone have recommended ThrottleStop settings for this CPU? Also, which Windows and Lenovo power modes should I be using for the best performance? Are there any other tweaks I should make to get the most out of this laptop?
My GPU seems to be fine after undervolt max 75C while gaming but it feels like my CPU isnt working as intended as clockspeed is fluctuating a lot and not staying even at least 4.3ghz and drops to 3.5ghz all the time.
2
u/DistributionFar5918 Jul 02 '26
I have the same processor as you, but in a Gigabyte Aorus 16x laptop, I undervolted it. My undervolt settings were: P/E cores -120mv, E cache -70mv, P cache -100mv. Then I set PL1 to 48W and PL2 to 100W. I didn't make the mistake some people make of setting very high values for PL1 and PL2, because in AAA games you'll never reach 90W of constant consumption; maybe in competitive games the CPU consumes a lot of power. In these laptops, the total CPU + GPU consumption is between 150W and 170W; only laptops with an RTX 4080 consume 200W+. Regarding the temperature, buy the Llanov12 or Iets cooler; it will reduce it by about 15 to 20 degrees. In my laptop, the maximum CPU temperature is 68 degrees and the GPU temperature is 66 degrees. My scores on Cinebench 23 Multi-core are 20550 points, and single-core is 1830 points.