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 AMD Ryzen, AM4 / AM5 Platform

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yimingwuzere
post Feb 11 2021, 04:08 PM

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QUOTE(SSJBen @ Feb 11 2021, 03:30 PM)
Back in Zen 2, the 3950x and 3800x had a conspiracy theory going on where these 2 SKUs got the best binned 8 core chiplets. Now that conspiracy theory has also spread to Zen 3.

The thing that people often overlook is that the so called poorly binned SKUs like the 3900x and 3700x had waaaay more sales than both 3950x and 3800x combined. The data is then skewed towards the other 2, where more people would complain their CPUs aren't boosting as advertised and cannot OC beyond +200mhz.

My point is that no matter which SKU you buy, it'll always be down to luck.
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Based on forumer tests, 3600 launch CPUs vs those bought this year - the 2020 batches do overclock slightly better overall. So I would think the conspiracy theory is at least partially true.

Weaker bins will always sell better due to better performance per dollar - see how many people buy the 10400 for Intel vs the 10500 and 10600 non-K for example. Same with all those people buying X2 and X3 chips to try and unlock the disabled cores during the Phenom era - a shitty quadcore at ~RM350 or so is a fantastic deal for its time if you needed multithreaded performance on a budget.

This post has been edited by yimingwuzere: Feb 11 2021, 04:09 PM
yimingwuzere
post Feb 13 2021, 01:38 AM

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QUOTE(targon @ Feb 13 2021, 12:19 AM)
Those who always criticize intel being hot cpu

From https://videocardz.com/newz/intel-core-i7-1...ahead-of-launch

Is not a "hot" processor, running up to 18°C cooler than a 5800X under Prime95 load. And look at the power draw.
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Power draw is interesting although adding a 10700K comparison could be better.

5800X is hot in Prime95 based on my testing, smaller off-center CPU die and separate IO die that can't help transfer CPU heat to the IHS doesn't help. In an Intel vs AMD fight AMD's chips would cool worse than Intel's at the same power consumption, that is to be expected.

QUOTE(Bonchi @ Feb 13 2021, 12:56 AM)
spoken too soon, it just BSOD again now with "APC index Mismatch". Looks like it's kernel related... now it's very likely to be my USB devices especially my USB DAC. or perhaps the RAM has already corrupted some of the windows files... it's CNY now and thought of wanna play some games and the problems kept coming now. WTF.

Somehow that version is not available for update as my windows update manager shows that mine is up to date. Maybe I will check around...
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I guess you truly have bad luck with AMD like you do with Asus too. Also have a USB DAC and haven't ran into any of these issues yet.
yimingwuzere
post Feb 16 2021, 01:02 AM

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QUOTE(Bonchi @ Feb 15 2021, 05:36 PM)
B550.. means the problem is not zen3 exclusive.

Anyways just got back from lowyat with a 10400F and Z490i. Sadly rocketlake is not out yet but i dont wanna wait anymore.

ps: there’s alot of rtx3070, rx6800Xt but all need bundle... rtx3080 and 5000 series ryzen totally no stock even if you wanna bundle , while Ryzen 3000series limited and need full pc bundle.
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WTB 1 3070, got a friend hunting for one assuming you bought it together as a bundle biggrin.gif
yimingwuzere
post Feb 16 2021, 02:55 AM

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https://videocardz.com/newz/clock-tuner-for...-dream-possible

Hmm... to patreon or to wait until spring? Too much time spent on tuning the CPU to run 4.85GHz max turbo clock with Curve Optimizer already, could do with automating that and extra OC. Not in a rush for extra tweaking though!

QUOTE(fujkenasai @ Feb 15 2021, 10:31 AM)
https://wccftech.com/amd-ryzen-5000-zen-3-d...-failure-rates/

AMD Ryzen 5000 ‘Zen 3’ Desktop CPUs & X570 Motherboards Have High Failure Rates, Reports PowerGPU
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Probably needs some people who know how to read European web stores to get RMA rates reported from there. The last time they had reports like this, it's mostly for the 5700 series Radeons showing a significantly higher rate than all Turing cards except the 2080Ti. Considering how bad some of the 5700 cards are, not surprising, although the 2080Ti RMA rates suggest that enthusiasts who are more likely to spend money on hardware are much more discerning (or abusing RMA for silicon lottery).

I saw a Reddit post where some guy quoted Mindfactory numbers, but with no source though: https://www.reddit.com/r/hardware/comments/...e_high/gnjoyml/

If the numbers are legit, seems like Germans don't like Gigabyte X570/B550 boards in general, RMA rates are way higher than the rest.

QUOTE(Bonchi @ Feb 16 2021, 01:23 AM)
nop, the shop that has the bundle for RTX3070 dont have stock for z490i.. so didnt manage to get it.
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cry.gif
yimingwuzere
post Feb 16 2021, 11:32 AM

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QUOTE(targon @ Feb 16 2021, 09:58 AM)
Don't have to read the actual Rma figures. Roughly we already knew failure rates for Zen 3 is higher especially for 5950x.
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I'd rather trust real world numbers than anecdotal evidence.

The numbers quoted by that reddit post are legit at least, based on the RMA figures for each product published on Mindfactory's item pages. The 5950X page isn't accessible presumably because it's OOS, but according to Kitguru it's 0.77%: https://www.kitguru.net/components/cpu/joao...yzen-5000-cpus/

5950X 0.77%
5900X 0.37%
5800X 0.58%
5600X 0.50%

Intel comparison (from all variants across items in stock at Mindfactory - they have different product pages for CPUs with or without working IGPs in both tray/box/special editions etc):
10900K+KF averaged: 0.35%
10850K averaged: 0.57%
10700K+KF averaged: 0.27%
10600K+KF averaged: 0.165%
10400+F averaged: 0.30%

There is some evidence that Ryzen 5000 CPUs have a higher RMA rate, other than the 5900X.

Intel's 10850K interestingly has higher RMA rates as well. I wonder why?

This post has been edited by yimingwuzere: Feb 16 2021, 11:33 AM
yimingwuzere
post Feb 16 2021, 11:40 AM

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QUOTE(General_Nic @ Feb 16 2021, 11:35 AM)
10850k is technically a lower binned of 10900k, so quality lower higher change of failure?
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Sounds plausible, 5950X could also be AMD not aggressively binning the dies enough. 3950X also wasn't available at launch for Zen2, presumably due to insufficient low power 8-core dies. Perhaps there wasn't enough either this time round, and chips that would have been better fit for a 5800X were used instead for it?
yimingwuzere
post Feb 16 2021, 03:32 PM

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QUOTE(Bonchi @ Feb 16 2021, 02:15 PM)
dont forget, there are people especially murica who RMA when there's no problem but the silicon is not good enough to reach their desired overclocking results.... Eventho the rma is likely be sent back to them but it will be considered as an RMA instance. Meanwhile the other statistics by powergpu for Ryzen was based on DOA, so I guess there's a difference as they are a pc builder who build and test before selling it out, and is genuinely faulty not simply RMAing because it cant OC well.

As for 10850K high RMA ... I assume it is due to users expect it will OC like a 10900K but it turns out that it doesnt laugh.gif so they RMA. If im not mistaken, 10900K can easily 5.2ghz at 1.26V... 10850K may need up to 1.35V if that's even possible and you can imagine the stress it puts on the VRM... there's quite a big difference between the 2.

and well... I gotta admit I also used to try my luck to rma poor overclocking cpu back in the days.
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Mindfactory is a German site so no idea if Germans are like muricans when it comes to RMA because it's not a golden sample.

QUOTE(SSJBen @ Feb 16 2021, 03:13 PM)
I'm fairly active on the Asus CH8 OC and owner's thread, from our collective reports there - the CPU that has the most issues are indeed the 5950x. More often than not, you will see people complaining that they can't even boot beyond 3600mhz/1800mhz IF, these are Zen 2 speeds lol!

Of course some BIOS releases has helped alleviate such cases recently, but it's not untrue that 5950x is currently the CPU to avoid, besides the 5800x which is of a silly value to begin with.
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Sadly 5800X is the easiest CPU to get due to its poor value, otherwise I'd be rocking a 5900X now.
yimingwuzere
post Feb 16 2021, 05:49 PM

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QUOTE(Bonchi @ Feb 16 2021, 05:40 PM)
capitalizing all the left over good ccx dies for the higest possible margin.. the crappy ones as you know are all dumped into 3100 and 3300
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Even then there wasn't a lot of 3300X to begin with, just enough batches to steal 10100's thunder, then when a few months later - OOS everywhere.

3600 stocks started drying up towards the end of last year too, most retailers only had 3600X instead as well IIRC.
yimingwuzere
post Feb 16 2021, 06:01 PM

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QUOTE(SSJBen @ Feb 16 2021, 04:09 PM)
Too bad 5900x is like a unicorn.
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I won't be surprised they have more I/O dies than CPU dies, hence more CPUs pushed out as 5600X/5800X too.
yimingwuzere
post Feb 17 2021, 03:33 PM

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QUOTE(Bonchi @ Feb 17 2021, 03:20 PM)
not just not acknowledging.. but made worse by some of their toxic fans turning it into a user problem instead, especially when it comes to RAM stick choices and various other hardware/software compatibility.
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AMD fanboys have been around forever. Just that they're less quiet now because Zen2/3 is a far cry from Bulldozer tier garbage.
yimingwuzere
post Feb 18 2021, 08:13 AM

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QUOTE(timeonce @ Feb 17 2021, 03:59 PM)
Hi guys. This is my first time posting here. As im building my rig. And Im too hasty... i found myself a 5800x and 5900x.

Before i put it to my motherboard. Which one will you guys think i should keep.

I just do normal gaming only and going to use this desktop for working purposes more.
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From a gaming perspective performance gain from the 12 cores vs 8 is marginal.

What programs do you use for "working purposes"?
yimingwuzere
post Feb 18 2021, 09:39 AM

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QUOTE(timeonce @ Feb 18 2021, 09:35 AM)
Got it for RM2800 kinda mark up abit for 5900x.

I got 5800x as thought no hope for my 5900x for RM2400.. sigh...

Now I'm unsure what should i do with it. If i sell my 5800 open box u think got ppl buy ?? As 5900x is mint in box. 5800x is install to my desktop.

I got MSI unify as my mother board as saw review one of best budget motherboard.
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It's a seller's market. 5800X can easily be sold if it's cheaper than the others and ala carte, since most stores that have any units and not scalping will be requiring full builds.

If you're selling 5900X at RRP I will happily buy it off you biggrin.gif

This post has been edited by yimingwuzere: Feb 18 2021, 10:44 AM
yimingwuzere
post Feb 18 2021, 03:07 PM

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QUOTE(Bonchi @ Feb 18 2021, 02:03 PM)
Excel tends to not able to utilize multi threaded workloads that well and even if you have so much power at your disposal.. also better to use ECC ram as if im not mistaken, Ryzen supports it.
But generally, also expect crashing midway with such big datasets (altho 1GB is still considered small) regardless of how many cores or rams.... for this kind of workloads usually xeons are used for reliability.
So for you, just sell whichever you can scalp for the highest margin/profit which is the 5800X at the moment.
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Monte Carlo sim is one of the better multithreaded examples with Excel. But cyberpunk/ACV doesn't get more juice out from the second CCD. So for whether the 5900X is worthwhile - depends entirely on how well his Excel workloads already use his 5800X.

ECC is why Linus Torvalds is a huge fan of Threadripper and ditched his Intel HEDT setup, because to him unofficial support is better than nothing. There's a rant of his about ECC last month in LKML last month IIRC.

I've seen scalpers trying to sell 5800X for 2.3k before.
yimingwuzere
post Feb 18 2021, 04:22 PM

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QUOTE(Bonchi @ Feb 18 2021, 04:13 PM)
which is ironic because ryzen has a bunch of missing components to run certain linux distro smoothly lmao... only now they create a dedicated team to sort the problems for future chips.
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Too reliant on OSS community to fix everything. Their Radeon Linux drivers were abysmal too when they were still using fglrx instead of open source. Now Nvidia is considered to have the worse Linux drivers lol (even if only by a little bit).
yimingwuzere
post Feb 18 2021, 09:30 PM

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QUOTE(JohnLai @ Feb 18 2021, 08:27 PM)
3950X had arrived.

Bought it from joinothing over here https://forum.lowyat.net/index.php?showtopic=5102093
[attachmentid=10792958]

Replaced 5600X with 3950X. icon_rolleyes.gif
edit:
3950X idle CPU PPT = 15W
5950X idle CPU PPT = 28W

Both are using mainboard Precision Boost Overdrive and Auto OC +200Mhz.

Anyone know what with the variance in idling power usage?  confused.gif
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Curve Optimizer, stock AMD PPT settings - 28W also with my 5800XT. CPU cores only sipping 3W, SoC eats up 12W of the lot. Not sure where the rest is coming from.
yimingwuzere
post Feb 18 2021, 10:51 PM

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QUOTE(JohnLai @ Feb 18 2021, 09:36 PM)
So, I can assume all Zen 3 has idle CPU PPT of 28W. hmm.gif

Anyone with previous Zen 2 can verify on idle 15W - 18W CPU PPT?
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I suspect it's a misreading as the PPT seems to be the sum of two values in HWInfo: SoC Power and SoC+Core Power. I don't see any other related values reported there.
yimingwuzere
post Feb 19 2021, 02:49 PM

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QUOTE(SSJBen @ Feb 19 2021, 02:01 PM)
Zen 3 memang hotter than Comet Lake. You squeeze in so many cores and threads into 1 tiny ass package, if not hot then it goes against logic already.
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Comet Lake die size: 198.2mm2, ~250W max power draw
Zen3 CPU die size: 83.736mm2, ~127W max power draw (assuming 142W PPT minus SoC die power)

Then add the fact that Zen2/3 chips are off-center, and then it's gonna be toastier. Unless one's AM4 motherboard can fit an offset bracket (like Arctic's or Der8auer's).

This post has been edited by yimingwuzere: Feb 19 2021, 02:50 PM
yimingwuzere
post Feb 19 2021, 04:00 PM

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https://www.pcworld.com/article/3608349/ryz...the-claims.html

PCWorld talks to an unnamed hardware vendor:

Ryzen 5000 series fails at 2.9 percent.
Ryzen 3000 series fails at 3 percent.
ThreadRipper 3000 series fails at 2.5 percent.
Intel 9th-gen fails at 0.9 percent.
Intel 10th-gen fails at 1.2 percent.

QUOTE
Let’s define ‘fail.’ The vendor noted that like most PC vendors, it still ships more Intel-based CPUs than AMD-based CPUs. The sample size affects the data: If you bake one dozen cookies and one burns, that extra-crispy one's going to stick out more than if you bake five dozen cookies and a few burn.

The third vendor torture-tests systems with fully loaded memory slots—even if they’re not eventually sold that way. The vendor also explained that its failed CPUs aren’t dead, as PowerGPU reported—they just don’t pass its requirements to run low-latency or high-frequency RAM fully loaded.

Interestingly, the third vendor also said there was no apparent rhyme or reason to CPUs that didn’t pass muster. For example, it found more Core i9-10900K chips passed its tests than Core i9-10850K chips, while the 64-core ThreadRipper 3990X had more success than the 32-core and 24-core versions. The third vendor said it wouldn’t describe its particular rejection rates as a “problem.”
Sounds like binning is the main cause (at least for 10850K and 3990X). Also interesting to note that memory tests are done - AMD chips can be finicky sometimes in 4-slot configurations.

This post has been edited by yimingwuzere: Feb 19 2021, 04:02 PM
yimingwuzere
post Feb 20 2021, 12:23 AM

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QUOTE(targon @ Feb 19 2021, 09:52 PM)
I believe it's higher than that for 5950x
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I'm guessing these are averaged scores.

Per Mindfactory stats I posted earlier, 5950X RMAs are higher than the other 5000 series as you expected.
yimingwuzere
post Feb 20 2021, 12:40 PM

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QUOTE(iZuDeeN @ Feb 20 2021, 10:02 AM)
anyone got a 'beginner' guide for 5600x on CTR 2.0?
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I would think playing with Curve Optimizer and PBO is better than CTR 2.0, since CTR doesn't run a proper AVX stability test nor does it use Curve Optimizer.

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