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Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13855 Credit: 208,696,464 RAC: 304 |
Overclocked Ryzen 9 3950X outperforms 24-core 2970WX in Cinebench (It beats Intel's i9-9980XE, too). In TechSpot’s own testing, both the 3900X and 3700X maxed out at 4.3 GHz on a 360mm AIO. Grant Darwin NT |
Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
Overclocked Ryzen 9 3950X outperforms 24-core 2970WX in Cinebench (It beats Intel's i9-9980XE, too). So a TR 2950X would have to drop significantly in price to become competitive in the "bang for buck" arena. Tom A proud member of the OFA (Old Farts Association). |
johnsmith Send message Joined: 13 Mar 19 Posts: 18 Credit: 2,712,800 RAC: 9 |
Overclocked Ryzen 9 3950X outperforms 24-core 2970WX in Cinebench (It beats Intel's i9-9980XE, too). But at a cost of high power comsumption, it has a tpd of 180 watts and if you run somthing for 24/7 it can become expensive quickly. |
Wiggo Send message Joined: 24 Jan 00 Posts: 36816 Credit: 261,360,520 RAC: 489 |
Not to mention the poor memory access by certain cores that Tom should well know about by now (it's sorta like their old module based CPU's where a pair of cores shared a single FPU, a complete bottleneck, but on the memory access side of things in this case). ;-)But at a cost of high power comsumption, it has a tpd of 180 watts and if you run somthing for 24/7 it can become expensive quickly.Overclocked Ryzen 9 3950X outperforms 24-core 2970WX in Cinebench (It beats Intel's i9-9980XE, too). Cheers. |
Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
Both 2970wx and 2990wx have the memory bottleneck issue. However, the 2920wx/2950wx do not. I regret not going with a 2950wx on hind sight. But it wasn't until I had that 2990wx and discovered how severe the memory bottleneck was for the processing that Seti requires that it become clear a TR 2950wx would have been the best choice. Tom A proud member of the OFA (Old Farts Association). |
ace_quaker Send message Joined: 12 Oct 01 Posts: 17 Credit: 33,678,474 RAC: 1 |
Hello All, If priced at $450 this would be the best processor for 24/7 computing in a very long time. Already the best price I can get on a 3900x in my area is $570. I missed the boat for even moderate availability so now Microcenter is over MSRP. I was going to underclock/set TDP to 65w anyway, this will save me at least $100. Even more if it hits at $430. |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I manage to snag my 3900X for $450 about 3 weeks after release. Been a very good investment. Hopefully AMD will get the inventories back in shape shortly. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
StFreddy Send message Joined: 4 Feb 01 Posts: 35 Credit: 14,080,356 RAC: 26 |
What temperatures are normal for a 3900x while crunching? Mine reaches 80 Celsius using the avx app. Is it safe? Cooler is a noctua nh d15s. |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
What temperatures are normal for a 3900x while crunching? Mine reaches 80 Celsius using the avx app. Is it safe? Cooler is a noctua nh d15s. That sounds about right. Mine usually hovers in the mid-70's while crunching. I have custom loop cooling with a 360mm radiator and the cpu running at fixed 4150Mhz at 1.24V. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Jord Send message Joined: 9 Jun 99 Posts: 15184 Credit: 4,362,181 RAC: 3 |
Here in the Netherlands power is not cheap something like 0.23 / 0.25 euro Kwh.Expensive, I pay 0.21965/KWh. Always Off-Peak hours (Groene Stroom Zeker Altijd Daltarief). But then I use only low-power Android devices to crunch Seti. :) |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13855 Credit: 208,696,464 RAC: 304 |
What temperatures are normal for a 3900x while crunching? Mine reaches 80 Celsius using the avx app. Is it safe? Cooler is a noctua nh d15s.For 24/7/365 use, 70°c is my personal limit (the odd spike to 75°, but not sustained). My Cooler Master ML240s keep my i7-8700K's at around 70°c even when the ambient temperatures get up to the high 30°s to low 40°s, all cores processing using the AVX application (or supporting the GPUs). Grant Darwin NT |
Jord Send message Joined: 9 Jun 99 Posts: 15184 Credit: 4,362,181 RAC: 3 |
Very cool crunchin'!?Doesn't matter, it's not available for us builders, it's for OEM and system builders only. https://wccftech.com/amd-officially-launches-ryzen-9-3900-and-ryzen-5-3500x/ The price is what's interesting here as you won't be able to buy it unless you buy it in a prebuilt from an OEM or System Integrator. And in case you were waiting for the 3500X, it is only for the Chinese market. |
Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
Except it has started getting cold around here I would holler, come on November..... :) A proud member of the OFA (Old Farts Association). |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
The AMD Ryzen beasties are a different sort of animal compared to Intel cpus. Especially so with the 7nm cpus. A lot of concentrated heat in a small area. The limit on the Ryzen 3000 series is supposed to be 95°C. Best to keep it under 85°C. for constant loading just like the older Zen 1+ cpus. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13855 Credit: 208,696,464 RAC: 304 |
The AMD Ryzen beasties are a different sort of animal compared to Intel cpus. Especially so with the 7nm cpus. A lot of concentrated heat in a small area. The limit on the Ryzen 3000 series is supposed to be 95°C. Best to keep it under 85°C. for constant loading just like the older Zen 1+ cpus.And the limit for my CPU is 100°c. But electromigration is electromigration, and the smaller the manufacturing process, the bigger an issue it is. For long term reliability I've always gone with 75% of maximum rated load for sustained loads on a PSU, and hence why for me 70°c is what i'm comfortable with for my CPU for 24/7/365 work. Grant Darwin NT |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I don't think you can even operate at nominal base clock for Ryzen 3000 cpus and keep them under 70° C. under 24/7 load unless you are using something better than normal ambient water cooling. I don't think you can run anything over 1.0V to keep them under 70° C. under full compute loading 24/7. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
bloodrain Send message Joined: 8 Dec 08 Posts: 231 Credit: 28,112,547 RAC: 1 |
you have to do some sort of high end water loop. that just for the cpu. with a massive radiator |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
you have to do some sort of high end water loop. that just for the cpu. with a massive radiator If you want to run the 3900X at something close to its core clock spec, you need water cooling for a 24/7 compute load. I have mine set at a fixed all-core clock of 4150Mhz which is where the cpu would run at on Auto if it had to run compute for 24/7. But I do it at a lot less voltage than what Auto shoves into the chip. Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
Tom M Send message Joined: 28 Nov 02 Posts: 5126 Credit: 276,046,078 RAC: 462 |
you have to do some sort of high end water loop. that just for the cpu. with a massive radiator What kind of turnkey liquid cooling solution would you probably go with if you were starting from scratch.... And has anyone heard any more solid rumors about the 3950x arrival? Tom A proud member of the OFA (Old Farts Association). |
Keith Myers Send message Joined: 29 Apr 01 Posts: 13164 Credit: 1,160,866,277 RAC: 1,873 |
I still think the AlphaCool Eisbaer AIO kits are the best compromise between an AIO and a full custom water loop. The parts used are head and shoulders above the standard generic AIO's offered by all the normal PC cooling vendors which all are based on the Asetek or Coolit hardware which is not made for 24/7 compute loads running for several years. Reasonable priced and not much more expensive than the consumer generic AIO kits and about half what a custom cooling loop will cost you. https://www.amazon.com/Alphacool-Eisbaer-360-Water-Cooler/dp/B01HQ6DCHI/ref=sr_1_1?crid=1RJTKRVQC4FKE&keywords=alphacool+eisbaer+360&qid=1571180389&sprefix=Alphacool+eisb%2Caps%2C215&sr=8-1 https://www.amazon.com/Alphacool-11287-Eisbaer-280-CPU/dp/B01HQ6DE4O/ref=sr_1_6?crid=1RJTKRVQC4FKE&keywords=alphacool+eisbaer+360&qid=1571180389&sprefix=Alphacool+eisb%2Caps%2C215&sr=8-6 And for comparison about what my current custom cooling hardware would cost in kit form. http://www.xs-pc.com/watercooling-kits/raystorm-pro-d5-photon-rx360-watercooling-kit-intelamd Seti@Home classic workunits:20,676 CPU time:74,226 hours A proud member of the OFA (Old Farts Association) |
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