8 ms·

Looks like we're back to P4-style levels of power use. Not sure how I feel about consumer chips running 150 watts on the regular. That's a lot more carbon in th

Looks like we're back to P4-style levels of power use. Not sure how I feel about consumer chips running 150 watts on the regular. That's a lot more carbon in the atmosphere for questionable reasons. https://www.pcper.com/reviews/Processors/Intel-Core-i9-7900X-10-core-Skylake-X-Processor-Review/Power-Perf-Dollar-Conclusi https://www.pcper.com/reviews/Processors/Intel-Core-i9-7900X... Incredibly, the 7900X is hitting 240 watts. When was the last time we had a chip that burned that much energy? Granted, its destined for the server room, but a 2U quad CPU box will be hitting 1000 watts on CPU usage alone at 100% utilization. That's close to a medium-sized window AC unit.

dogma1138 9y ago
Intel has changed the voltage regulation this time its back on the CPU. Skylark-EP gets nowhere near those power draw levels even at similar clocks I have a strong suspension that this is a BIOS issue and the CPU voltage regulator is running full steam (this is equivalent of locking the phase frequency of your VRMs on the motherboard to the max).
BuckRogers 9y ago
Yes, those TDPs made them dead on arrival for me. I moved to mini-ITX for my main system and won't be going back. There's no room in my case for any watercooling hardware. I run a Ryzen 7 1700 which is a 65W TDP 8 core, 16 thread CPU. I was going to hold off for Intel's response, but I knew they wouldn't have anything with 8 cores that was anywhere near 65W TDP. CoffeeLake should offer lower TDPs, but with 6 cores max which seems unappealing compared to 8C. I'm going to revisit Intel after they've had time to prepare a real response to Ryzen in ~2020 or so.
- mcraiha 9y ago
  You can put watercooling pump and radiator outside of your case.
  - loeg 9y ago
    Kind of defeats the point of mini-ITX, though, for some of us.
    - paulmd 9y ago
      There are mITX/mATX cases that are small/portable and very functional for water-cooling as well. I use a Raven RVZ01 (see also FT01 for less aggressive styling) and I have a 120mm AIO in it.
- dogma1138 9y ago
  I've built multiple mini ITX cases with WC, but in anycase AMD calculates TDP in a very different manner to Intel, they calculate the average sustained power draw over a period of time which includes throttling, Intel calculates it based on the maximum instantaneous power draw possible. Intel has changed the power distribution design, it now has a linear voltage regulator on the CPU, it seems that some of the motherboards have issues with it. The power draw for Bit-Tech pots the 7900X which is a 10c CPU slightly over the 8c 1800x. https://www.bit-tech.net/hardware/2017/06/16/intel-core-i9-7900x-and-x299-chipset-revie/7 https://www.bit-tech.net/hardware/2017/06/16/intel-core-i9-7... I suggest you read more reviews and actually wait until post-launch updates most of these are still using very early and beta versions of the BIOS.
- deleted 9y ago
  [deleted]
- nikanj 9y ago
  I added an AIO water cooler inside my ITX, something similar to http://www.corsair.com/en-us/hydro-series-h90-140mm-high-performance-liquid-cpu-cooler http://www.corsair.com/en-us/hydro-series-h90-140mm-high-per.... One of the best computer investments I've made, since getting my first SSD. Instead of a loud whine occasionally, I get a steady hum. I have a Silverstone SG13 case, which is about the size of a sneaker box, fit into that one without any issues.
- solotronics 9y ago
  +1 for Ryzen but if people are having cooling issues they might want to check out underclocking.
hyperbovine 9y ago
> That's close to a medium-sized window AC unit. Which you are also going to need, to cool your new 1800W computational space heater.
dom0 9y ago
http://www.tomshardware.com/reviews/intel-core-i9-7900x-skylake-x,5092-11.html http://www.tomshardware.com/reviews/intel-core-i9-7900x-skyl... Since Intel is still using thermal gunk on it's HEDT processors, thermal resistance is ridiculous (0.3 K/W Rthjc).
- arielweisberg 9y ago
  The situation where delidding pays off is pretty frustrating. It costs me more to delid and replace the TIM then it does for Intel to charge more and do it right the first time. Hopefully competitive pressure will get them to start taking their process more seriously.
  - pvdebbe 9y ago
    I'm just glad there are thriving used parts markets where I can score a delidded and guaranteed-to-run-5ghz chips for less money than a brand new one.
Godel_unicode 9y ago
Those are only technically consumer chips; you're never going to see any computer without the word "workstation" on it running those chips from any OEM.
michaelmrose 9y ago
I dont think that an additional 100W under load 20W idle is going to have a meaningful effect on global warming? Lets imagine it spends 4 hours per day under load and 6 hours idle and the rest of the time sleeping. We are talking about 0.5 kwh or 15ish per month. The average us household uses by comparison around 900 kwh in the average month. Upgrading to one of these will in that scenario increase your household energy budget 1.6%.
ryao 9y ago
Do what I did and buy solar panels.

dogma1138 9y ago

Intel has changed the voltage regulation this time its back on the CPU. Skylark-EP gets nowhere near those power draw levels even at similar clocks I have a strong suspension that this is a BIOS issue and the CPU voltage regulator is running full steam (this is equivalent of locking the phase frequency of your VRMs on the motherboard to the max).

BuckRogers 9y ago

Yes, those TDPs made them dead on arrival for me. I moved to mini-ITX for my main system and won't be going back. There's no room in my case for any watercooling hardware. I run a Ryzen 7 1700 which is a 65W TDP 8 core, 16 thread CPU. I was going to hold off for Intel's response, but I knew they wouldn't have anything with 8 cores that was anywhere near 65W TDP. CoffeeLake should offer lower TDPs, but with 6 cores max which seems unappealing compared to 8C. I'm going to revisit Intel after they've had time to prepare a real response to Ryzen in ~2020 or so.

mcraiha 9y ago
You can put watercooling pump and radiator outside of your case.
- loeg 9y ago
  Kind of defeats the point of mini-ITX, though, for some of us.
  - paulmd 9y ago
    There are mITX/mATX cases that are small/portable and very functional for water-cooling as well. I use a Raven RVZ01 (see also FT01 for less aggressive styling) and I have a 120mm AIO in it.
dogma1138 9y ago
I've built multiple mini ITX cases with WC, but in anycase AMD calculates TDP in a very different manner to Intel, they calculate the average sustained power draw over a period of time which includes throttling, Intel calculates it based on the maximum instantaneous power draw possible. Intel has changed the power distribution design, it now has a linear voltage regulator on the CPU, it seems that some of the motherboards have issues with it. The power draw for Bit-Tech pots the 7900X which is a 10c CPU slightly over the 8c 1800x. https://www.bit-tech.net/hardware/2017/06/16/intel-core-i9-7900x-and-x299-chipset-revie/7 https://www.bit-tech.net/hardware/2017/06/16/intel-core-i9-7... I suggest you read more reviews and actually wait until post-launch updates most of these are still using very early and beta versions of the BIOS.
deleted 9y ago
[deleted]
nikanj 9y ago
I added an AIO water cooler inside my ITX, something similar to http://www.corsair.com/en-us/hydro-series-h90-140mm-high-performance-liquid-cpu-cooler http://www.corsair.com/en-us/hydro-series-h90-140mm-high-per.... One of the best computer investments I've made, since getting my first SSD. Instead of a loud whine occasionally, I get a steady hum. I have a Silverstone SG13 case, which is about the size of a sneaker box, fit into that one without any issues.
solotronics 9y ago
+1 for Ryzen but if people are having cooling issues they might want to check out underclocking.

hyperbovine 9y ago

> That's close to a medium-sized window AC unit. Which you are also going to need, to cool your new 1800W computational space heater.

dom0 9y ago

http://www.tomshardware.com/reviews/intel-core-i9-7900x-skylake-x,5092-11.html http://www.tomshardware.com/reviews/intel-core-i9-7900x-skyl... Since Intel is still using thermal gunk on it's HEDT processors, thermal resistance is ridiculous (0.3 K/W Rthjc).

arielweisberg 9y ago
The situation where delidding pays off is pretty frustrating. It costs me more to delid and replace the TIM then it does for Intel to charge more and do it right the first time. Hopefully competitive pressure will get them to start taking their process more seriously.
- pvdebbe 9y ago
  I'm just glad there are thriving used parts markets where I can score a delidded and guaranteed-to-run-5ghz chips for less money than a brand new one.

Godel_unicode 9y ago

Those are only technically consumer chips; you're never going to see any computer without the word "workstation" on it running those chips from any OEM.

michaelmrose 9y ago

I dont think that an additional 100W under load 20W idle is going to have a meaningful effect on global warming? Lets imagine it spends 4 hours per day under load and 6 hours idle and the rest of the time sleeping. We are talking about 0.5 kwh or 15ish per month. The average us household uses by comparison around 900 kwh in the average month. Upgrading to one of these will in that scenario increase your household energy budget 1.6%.

ryao 9y ago

Do what I did and buy solar panels.