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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

#151

Post by dagmx »

api wrote: post #115
microtonal wrote: post #2

I feel like both Intel and AMD are not doing great in the desktop CPU stability department. I made a machine with a Ryzen 9900X a while back and it had the issue that it would freeze when idling. A few years before I had a 5950X that would regularly crash under load (luckily it was a prebuilt, so it was ultimately fixed). When you do not have a bunch of components ready to swap out it is also really hard to debug the…

The M series chips aren’t the absolute fastest in raw speed, though they are toward the top of the list, but they destroy x86 lineage chips on performance per watt. I have an M1 Max, a few revisions old, and the only thing I can do to spin up the fans is run local LLMs or play Minecraft with the kids on a giant ultra wide monitor at full frame rate. Giant Rust builds and similar will barely turn on the fan. Normal st…

Afaik they are the fastest cores in raw speed. They’re just not available in very high core offerings so eventually fall behind when parallelism wins.

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

#152

Post by tester756 »

_zoltan_ wrote: post #45
tester756 wrote: post #36

Earlier quoted context omitted.

This is funny because recently my AMD Ryzen 7 5700X3D died and I've decided that my next CPU will be Intel https://news.ycombinator.com/item?id=45043269

that's a pretty bad decision $/perf wise I'd wager. AMD decidedly owns the desktop space, and deserves so.

wdym?

https://www.cpubenchmark.net/cpu_value_alltime.html

CPUs like Intel Core Ultra 7 265K are pretty close to top Ryzens

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

#153

Post by tester756 »

homebrewer wrote: post #41
tester756 wrote: post #36

Earlier quoted context omitted.

This is funny because recently my AMD Ryzen 7 5700X3D died and I've decided that my next CPU will be Intel https://news.ycombinator.com/item?id=45043269

This Intel? https://youtu.be/OVdmK1UGzGs https://youtu.be/oAE4NWoyMZk

That's been year ago, my AMD CPU died very recently

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

#155

Post by 486sx33 »

heelix wrote: post #128
bob1029 wrote: post #101

Earlier quoted context omitted.

I've got a 5950x that I can reliably crater with a very specific .NET 8 console app when it would otherwise be stable 24/7/365, even under some pretty crazy workloads like Unity. I think a lot of it boils down to load profile and power delivery. My 2500VA double conversion UPS seems to have difficulty keeping up with the volatility in load when running that console app. I can tell because its fans ramp up and my ligh…

I wonder if cooling/power is really the key here. I've got a 5950x that ended up getting the water loop I'd intended for my next threadripper - only to find they were not selling the blasted things to anyone but a few companies. With the cooling sized for almost twice what the 5950x could put out, it has been a very stable machine for some crazy workloads. That old dog will likely keep the setup when a zen 5 TR gets…

My 5950 didn’t like liquid cooling and lives very well with air cooling :)

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

#156

Post by protocolture »

microtonal wrote: post #2

I feel like both Intel and AMD are not doing great in the desktop CPU stability department. I made a machine with a Ryzen 9900X a while back and it had the issue that it would freeze when idling. A few years before I had a 5950X that would regularly crash under load (luckily it was a prebuilt, so it was ultimately fixed). When you do not have a bunch of components ready to swap out it is also really hard to debug the…

>I made a machine with a Ryzen 9900X a while back and it had the issue that it would freeze when idling

I also have this issue.

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

#157

Post by Numerlor »

mldbk wrote: post #140
williamDafoe wrote: post #98

Earlier quoted context omitted.

The 7000 series of CPUs is NOT known for running cool, unlike the AMD 5000 series (which are basically server CPUs repurposed for desktop usage). In the 7000 series, AMD decided to just increase the power of each CPU and that's where most of the performance gains are coming from - but power consumption is 40-50% higher than with similar 5000-series CPUs.

> You know, I'm something of a CPU engineer myself :D Actually almost everything what you wrote is not true, and commenter above already sent you some links. 7800X3D is the GOAT, very power efficient and cool.

The only reason the 7800x3d is power efficient is because it simply can't use much power, and so it runs at a better spot of the efficiency curve. Most of the CPUs won't use more than ~88w without doing manual overclocking (not pbo). Compare that to e.g. a 7600x that's 2 cores fewer on the same architecture and will happily pull over 130w.

And even if could push it higher, they run very hot compared to other CPUs at the same power usage as a combination of AMD's very thick IHS, the compute chiplets being small/power dense and 7000 series X3D cache being on top of the compute chiplet unlike 9000 series that has it on the bottom.

The 9800x3d limited in the same way will be both mildly more power efficient from faster cores and run cooler because of the cache location. The only reason it's hotter is that it's allowed to use significantly more power, usually up to 150w stock, for which you'd have to remove the IHS on the 7800X3D if you didn't want to see magic smoke

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

#159

Post by nofriend »

williamDafoe wrote: post #102
willtemperley wrote: post #54

Gaming seems to be the final stronghold of x86 and I imagine that will shrink. Clearly games are able to run well on RISC architectures despite decades of x86 optimisation in game engines. Long term, an architecture that consumes more power and is tightly locked down by licensing looks unsustainable compared to royalty-free RISC alternatives. The instability, presumably because Intel are overclocking their own chips…

"Stronghold" is a joke phrase, is it not? Intel had ZERO progress in integrated graphics from 2013-2020. ZERO. That's the reason why "it works so well" - because they NEVER improved the performance or architecture! Sure, they diddled with the number of CU's, but as far as graphics architecture, they never changed it, and it was POOR to begin with (couldn't do 1080p esports very well ...)

x86 is the cpu architecture. i don't believe gp was talking about intels igpu solution at all.

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

#160

Post by kevin_thibedeau »

swinglock wrote: post #71
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…

Excellent point. It's a shame and a travesty that data integrity is still mostly locked away inside servers, leaving most other computing devices effectively toys, the early prototype demo thing but then never finished and sold forever at inflated prices. I wish AMD would make ECC a properly advertised feature with clear motherboard support. At least DDR5 has some level of ECC.

> At least DDR5 has some level of ECC.

That is mostly to assist manufacturers in selling marginal chips with a few bad bits scattered around. It's really a step backwards in reliability.

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