10 vs 18 cores cpu heat?
10 vs 18 cores cpu heat?
Sorry might seem like a trivial question, but if you have a 10 core and an 18 core CPU from the same generation, everything else stays consistent—cooling, motherboard, etc. Only the CPU changes. Both have identical overclock settings and voltages. Would the 18 core be hotter even if it only uses 6 cores for a game? It’s similar to how an A 10 core might run on just 6 cores while the same game uses 18 cores, but the 18 core temps would still be higher despite lower utilization.
Idle CPU generates heat, though the temperature gap remains minimal when identical workloads are applied. The variation becomes noticeable only when comparing two CPUs that are nearly the same but differ mainly in core count.
Modern processors include power-saving options that can power down unused cores. This may lead to increased latency when you require immediate performance boosts. The 18-core chip would actually produce more heat due to ongoing power consumption, even if it's not actively running.
The thermal design power sets the heat output based on power usage. Precise solutions aren't possible here. Contemporary chips can lower clock speeds across multiple levels or even shut down certain cores entirely. A processor with ten cores might operate at 2.66 GHz on every core and increase to three cores up to 4 GHz, whereas an eighteen-core model could run at 2.4 GHz across all cores but boost up to six cores to 3.5 GHz. For instance, if a game demands only six active cores, the ten-core unit can't simultaneously push all six to 4 GHz, so it might settle around 3.2 GHz or 3.5 GHz for those cores. In contrast, the eighteen-core version can maintain all six at 3.5 GHz, resulting in the same total core count multiplied by that frequency. Certain components within the CPU may be shared among multiple cores—for example, a ten-core chip might have just 10 MB of level 3 cache, while an eighteen-core chip could offer 16 MB. In this case, if the game efficiently utilizes cache, the eighteen-core processor might perform slightly better due to the additional memory capacity.
Most HEDT CPUs support individual frequency and voltage adjustments per core. However, the challenge with the 10+ core chips lies in managing their heat dissipation.
Unless it was included with X299, that's not possible. Based on the core frequency, I haven't encountered any per-core voltage before.
Previously, every HEDT chip featured a FIVR similar to the one found on Haswell. It's unclear if this contributed to any differences in per-core voltage.
I've noticed this on Xeons too. HEDT chips appear to be simplified versions of regular Xeons. There was some talk about per-core voltage adjustments for HEDT earlier, but I didn’t focus much since I wasn’t looking to buy a $1300 CPU. It might have been worth paying more attention if I hadn’t forgotten the details. Apologies if I gave you incorrect info. *Updated* – found it on the 7920X. Remember, this BIOS isn’t widely known; it could be a per-frequency voltage option for turbo settings or something similar, but definitely not just a single global voltage setting. https://www.overclock.net/forum/5-intel-...aking.html