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Yea unclear who this chip is for with 8 cores burning so much power.. especially in the configuration where you overclock it crazily like this? or maybe i'm mis
by xt00 5y ago
Yea unclear who this chip is for with 8 cores burning so much power.. especially in the configuration where you overclock it crazily like this? or maybe i'm missing something?
- p1necone 5y agoIs power consumption actually a concern for anyone on a desktop chip? I know I personally care about idle power consumption when looking at PC parts, but I don't really care if peak power consumption is higher if I can compile faster or run games at higher FPS (not that many games are CPU bound). (This particular configuration is just for fun/show - nobody does liquid nitrogen cooling to actually use the PC, just to compete on benchmark numbers)
- xt00 5y agoSeems reasonable as a special part for super enthusiasts yea.. I guess I'm just more excited around the crazy high core count parts I guess than the high peak clock rates... 8 cores just feels like old news at this point for desktop I guess.. gotta have all of those chrome tabs open..
- p1necone 5y agoYeah Intel actually dropped the core count on the 11900k to 8 down from 10 on the 10900k (and it predictably performs worse), which seems like a bizarre choice when they're currently playing second fiddle to AMD who have much higher core counts on their top end parts.
- colechristensen 5y agoMore cores means more heat means throttling for temperature. People get excited about huge core counts but single thread performance dominates in many workloads
- mastax 5y agoExtra power consumption means extra money and/or bulk and/or noise on power delivery and cooling. Then all that heat ends up in my room which is undesirable for ~60% of the year.
- p1necone 5y agoNot necessarily if its also faster - something taking 5 seconds at 120w draws the same amount of power as the same thing taking 10 seconds at 60w on a slower but less power hungry CPU. Try measuring the at wall power draw of your PC while doing some standard tasks + when idling/light web browsing and extrapolate out to monthly power bill - you'll probably find the cost to be pretty negligible even with more powerful desktop PCs. (Of course none of this is an argument in favor of this particular CPU which has both high peak power draw and worse performance per watt than its competitors).
- scns 5y agoTrue, it is called the race to idle. A lot of work went into transitioning between pstates really quickly. A counterexample would be one commenter here on HN, who got the lowest clocked, highest core count server he could get his hands on, for zipping through the compilation of C++ projects.
- Koshkin 5y agoUnfortunately, performance never scales linearly with power (nor, actually, does it scale linearly with the core count).
- faeriechangling 5y agoIt is once you properly account for all the issues - #1 - Higher PSU spend #2 - Higher cooling spend (case + cooler). Trying to reduce the noise levels of a hotter component gets obnoxiously expensive, and even after this spend you still have to contend with coil whine and relatively large components. There's a reason Apple uses laptop components in its iMacs. #3 - Higher power spend (total spend varies a lot depending on how often computer is at load) #4 - Waste heat, which can lead to even MORE power spend if running A/C #5 - Components generally failure more often when hot, so extra repair/replacement spend Most of these are admittedly minor concerns (especially if you can live with noise and rarely run at load), but when you see things like Intel drawing 100w more at load than AMD with roughly equivalent performance, and when you consider the average desktop replacement happens after 6 years nowadays, these concerns add up. The savvy PC builder values power efficiency.
- kasabali 5y agothe rest might be, but #1 and #2 aren't minor concerns. If your old PSU doesn't provide enough power you're sol. And if cooling isn't enough cpu will be throttled, making getting a new powerful CPU meaningless.
- gjm11 5y agoDespite the name "Cryo Cooler", this particular configuration doesn't use liquid nitrogen or anything of the sort. It's ordinary water-cooling plus a Peltier-effect thermoelectric device.
- willis936 5y agoAny sub-ambient cooling solution is going to use a lot of power, even at idle.
- gambiting 5y ago>>Is power consumption actually a concern for anyone on a desktop chip? Yes, because it means my office becomes an actual oven after playing games for 30 minutes. The heat from all of this has to go somewhere, and I don't have a very big room.
- selfhoster11 5y agoElectricity in the UK is pretty expensive, so energy cost is definitely a consideration for me.