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I am giving up on Intel and have bought an AMD Ryzen 9950X3D

michael.stapelberg.ch

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Re: I am giving up on Intel and have bought an AMD Ryzen 9950X3D

#271

Post by dahauns »

stavros wrote: post #227
topspin wrote: post #226

Earlier quoted context omitted.

I do. I've been buying Intel for the same reason as the author: I build machines that don't have glitches and mysterious failures and driver issues and all the rest of the garbage one sees PC assemblers inflict on themselves. Make conservative choices and leave ample headroom and you get a solid machine with no problems. I've never overclocked anything and I've never felt I've missed out in any way. I really can't im…

So underclock your CPU.

How about you "overclock" (overvolt, unlock TDP etc.)?

This is about sane, stable defaults. If you want the extra performance far beyond the CPUs sweet-spot it should be made explicit you're forfeiting the stability headrooms.

Re: I am giving up on Intel and have bought an AMD Ryzen 9950X3D

#272

Post by storus »

c0l0 wrote: post #65

I realize this has not much to do with CPU choice per se, but I'm still gonna leave this recommendation here for people who like to build PCs to get stuff done with :) Since I've been able to afford it and the market has had them available, I've been buying desktop systems with proper ECC support. I've been chasing flimsy but very annoying stability problems (some, of course, due to overclocking during my younger yea…

Now where can I get 64GB ECC UDIMM DDR5 modules so that my X870E board can have 256GB RAM? The largest I found were just 48GB ECC UDIMMs or 64GB non-ECC UDIMMs.

Re: I am giving up on Intel and have bought an AMD Ryzen 9950X3D

#273

Post by dahauns »

stavros wrote: post #229
topspin wrote: post #228

Earlier quoted context omitted.

Because I'm not a CPU engineer, and neither are you. Neither of us can claim anything about fucking around with CPU clocks and voltages or anything else about any of this. If you want to screw around in BIOS settings and learn where all the sharp edges are and spend your time like this, enjoy. I've never done this nonsense and I never will.

I know enough to tweak the "voltage" slider down a few numbers, and that's enough to get more stability. Otherwise, I vote with my wallet, and don't buy CPUs that break, which is why companies don't generally make CPUs that break.

>which is why companies don't generally make CPUs that break.

Well, that's the issue, isn't it? Both Intel and AMD (resp. their board partners) had issues in recent times stemming from the increasingly aggressive push to the limit for those last few %.

Re: I am giving up on Intel and have bought an AMD Ryzen 9950X3D

#274

Post by devnullbrain »

casenmgreen wrote: post #240

Curiously, libgmp reported something similar recently, but with AMD. https://gmplib.org/gmp-zen5

In my experience building PCs this is not so curious. There are just a lot of duds, from individual SKUs to entire generations, and both manufacturers and retailers will do anything to prevent you RMAing them.

I also find that, as performance improvements tolerances get tighter throughout the system, the set of 'things that can screw your build' grows bigger.

Re: I am giving up on Intel and have bought an AMD Ryzen 9950X3D

#275

Post by formerly_proven »

Dunedan wrote: post #237
usr1106 wrote: post #97

Earlier quoted context omitted.

I guess the author runs it at high load for long times, not only for the benchmarks to write this blog post. And less than 10 kWh is a low starting point, many households would be much higher.

That vastly depends where you live and what you use electricity for. Most of Europe for example uses much less energy [1], although that will probably change as heat pumps are becoming more and more widespread. [1]: https://en.wikipedia.org/wiki/European_countries_by_electric...

I think this is just consumption divided by population, so very easily influenced by e.g. having little population and many data centers: I doubt the average person in Iceland is spending 10k+ bucks on electricity annually.

Re: I am giving up on Intel and have bought an AMD Ryzen 9950X3D

#276

Post by devnullbrain »

kd913 wrote: post #242
casenmgreen wrote: post #240

Curiously, libgmp reported something similar recently, but with AMD. https://gmplib.org/gmp-zen5

General consensus on that case seems to be they picked a budget motherboard and skimped on the cooler.

That ASUS motherboard is far from the cheapest available. If using it makes the user liable for failure, a large part of the market is unsuitable.

For both the cooler and the motherboard, AMD have too much control to look the other way. The chip can measure its own temperature and the conceit of undermining partners by moving things on chip and controlling more of the ecosystem is that things perform better. They should at least perform.

Re: I am giving up on Intel and have bought an AMD Ryzen 9950X3D

#277

Post by devnullbrain »

bell-cot wrote: post #23
stavros wrote: post #14

Earlier quoted context omitted.

That's good, isn't it? I don't want the factory leaving performance on the table.

Depends on your priorities. That "performance on the table" might also be called "engineering safety factor for stability".

Yep. Redundancy and headroom are antonyms of efficiency.

Re: I am giving up on Intel and have bought an AMD Ryzen 9950X3D

#278

Post by wer232essf »

c0l0 wrote: post #65

I realize this has not much to do with CPU choice per se, but I'm still gonna leave this recommendation here for people who like to build PCs to get stuff done with :) Since I've been able to afford it and the market has had them available, I've been buying desktop systems with proper ECC support. I've been chasing flimsy but very annoying stability problems (some, of course, due to overclocking during my younger yea…

[dead]

Re: I am giving up on Intel and have bought an AMD Ryzen 9950X3D

#279

Post by c0l0 »

storus wrote: post #272
c0l0 wrote: post #65

I realize this has not much to do with CPU choice per se, but I'm still gonna leave this recommendation here for people who like to build PCs to get stuff done with :) Since I've been able to afford it and the market has had them available, I've been buying desktop systems with proper ECC support. I've been chasing flimsy but very annoying stability problems (some, of course, due to overclocking during my younger yea…

Now where can I get 64GB ECC UDIMM DDR5 modules so that my X870E board can have 256GB RAM? The largest I found were just 48GB ECC UDIMMs or 64GB non-ECC UDIMMs.

I don't think 64GB ECC UDIMM is commercially available yet. I use Geizhals to check for EU availability: https://geizhals.eu/?cat=ramddr3&xf=7500_DDR5~7501_DIMM~7761...

In my experience, it's generally unwise to push the platform you're on to the outermost of its spec'd limits. At work, we bought several 5950X-based Zen3 workstations with 128GB of 3200MT/s ECC UDIMM, and two of these boxes will only ever POST when you manually downclock memory to 3000MT/s. Past a certain point, it's silicon lottery deciding if you can make reality live up to the datasheets' promises.

Re: I am giving up on Intel and have bought an AMD Ryzen 9950X3D

#280

Post by stavros »

dahauns wrote: post #271
stavros wrote: post #227

Earlier quoted context omitted.

So underclock your CPU.

How about you "overclock" (overvolt, unlock TDP etc.)? This is about sane, stable defaults. If you want the extra performance far beyond the CPUs sweet-spot it should be made explicit you're forfeiting the stability headrooms.

Good thing that's not the point I was making, then!
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