Let's hope more dev can build engine that supports Vulkan and more games will support it in the future. If not 8 cores will age better than 6 cores, even consoles are using 8.

CPU need a mobo, it's not simply can just switch to Intel unless building a new rig. If someone buying CPU and mobo I also advice to get Intel since they now give same performance as AMD and price are not marked up.

I failed to see how I am the one that butt hurt when it's you that post hateful message about AMD buyers.

how much did you sell the 5900X for?

Did i tell him to buy intel? I was hinting him to go for 5800x instead of 5900x because 5900x will never drop down to his budget. Even malaysia's original msrp is out of his budget, so where is this hateful message?.

Butt hurt then butt hurt la. So butt hurt until instantly assume Im telling the forumer to go for intel and say im spreading AMD hate lmao.

Renior 4650G. 6c12 with igpu and the last price i saw it was cheaper than the 3600 and it's a little faster too. Doesnt have the idle boosting issue and really curious on the ram latency since it's a monolithic die cpu.


This post has been edited by Bonchi: Mar 28 2021, 09:46 AM

I didn't say you recommend him to get Intel. I'm replying on your thinking that people still waiting to get AMD when Intel is widely available.

Read the bolded part for the hateful message. Anyways you want to continue hating AMD is totally up to you. But don't use me as your punching bag.

Intel is always widely available, price slashed but it is still not being sold, why? mainly due to the false reputation of "running hot and power hungry" and like a very famous guy said, waste of sand.

AMD fanboys and scalpers have successfully brainwash everyone.. to the point so many are paying up to 1.6k for a 5600x even as a full bundle set in viewnet/czone... while the 10900F is rm 1.5k but still mostly sitting there.

That's the fact you have to live with in this AMD dominated era. Best not to give false hope and advices like price and demand will drop. Even more so on 5900x which doesnt have an immediate competition.

That said. This issue is over and lets move on.

This post has been edited by Bonchi: Mar 28 2021, 10:30 AM

Intel not being sold? If not sold out then obviously. But not being sold? Come on, I'm tired of your exaggeration.

AMD price and demand will not drop? 5800X used to be sold for 2.4k, now is 2.2k.

AMD fanboys and scalpers haven't manage to successfully brainwash everyone. I got one proof here.

Yeah, way off topic. Move on.

Finally its over.

Anyway JohnLai, here are some results from the testing I did to see the effect of IF clock on SOC power (and the inherent soc uncore mode which is broken even if you set it to disabled):

Testing was done with:
1. Aorus B550i with latest stable F12 (non-beta)
2. Uncore OC mode disabled
2. VSOC/VDDG/VDDP/VRAM/RAM speed/RAM timings set constant
3. Balanced powerplan with latest chipset drivers installed (early Feb 2021)
4. On my Bench OS with very minimal things running in the background

IF clock	Idle SOC Power	CB R20 MC Load Power
1333	~4.4w (screenie)	~5.6w (screenie)
1600	~4.5w (screenie)	~5.8w (screenie)
1633	~8.5w (screenie)	~9.4w (screenie)
1800	~9.0w (screenie)	~9.8w (screenie)

So what I can see are:
1. IF clock above 1600 increases the SOC power by a significant magnitude (this concurs with the reddit post that you linked to earlier, but its actually the IF speed that affects it)
2. IF clock increase between 1300 to 1600, and 1633 to 1800 results in marginal SOC power increase
2. Idle vs Load increase the SOC power by a marginal magnitude (this concurs with the OCN post that I linked to earlier, SOC powerstates are somewhat broken)

Disclaimers:
1. Using a 2 CCD CPU will definitely increase the power figures
2. I did not test by varying the RAM speed, I'm a bit lazy to do that sorry
3. VSOC is keyed in manually instead of Auto, which might be counterintuitive to validate if the Uncore OC mode is really broken
4. I briefly tested IF clocks in between 1333-1600, and also 1633-1800, but the difference was marginal so I didnt record the results or take any screenies
5. Sorry if this tests has been posted here before, but I did it myself to pique my own curiosity and share here

That the reason I normally keep silent already.

To me, at least 2 Anti-AMD here and he/she seems never realize at all.
Keep talking bad thing on AMD and said how poor stability in AMD not only here but also in NVidia thread. What is their motive? Really speechless.

If a general talk can brainwash people, that person get wash must be very dumb. lol.

If no issue is fanboys? This is the most ridiculous comment I ever seen.

Anti-Intel? I think no one ever comment or talk bad on Intel so far in any thread in lowyat. Who is Anti-Intel? Nobody.

The person comment is fanboys or AMD hater or not, he/she should know by him/herself very well now if previously not realize.

This post has been edited by Andrewtst: Mar 28 2021, 02:25 PM

I never had a 5900x bro! But right now I have one waiting in KL, from a forumer here.

Wow, that is a good power saving compared to mine.
My 5950x SOC power consumption is exactly doubled yours at VSOC 1.0V

1333 = ~8.8W
1600 = ~9W
1800 = ~18W
1867 = ~19W

Perhaps the doubled power usage is due to 2 CCDs.

Compared to 3950x.......The SOC (VSOC 1.1V) is idling just fine at 2.5W and using 17W - 20W on load

Both CPU have DDR4 XMP activated at 3600Mhz (3950x) and 3733Mhz (5950x).
I had been searching through OCN and reddit posts and apparently the Zen 3 SOC power state when (XMP is activated) were "broken" since launch. So much for Zen 3 is using the same IO die as Zen 2.

Same IOD but different CCX, so there will be some difference in the bios between the generations.

Yup, exactly. The powerstates are broken for Zen3.

For Zen2, well I had some time this afternoon to test out my old 3300x (I forgot how hot this thing is ), cleared cmos, set the voltages and timings, and here are the results.

Again, I used the same test setup (even if this 3300x are not stable using these voltages), but I kept it same as previous results to minimize variables.

IF clock	Uncore OC setting	Idle SOC Power	CB R20 MC Load Power
1333	Off	~6.1w (screenie)	~8.1w (screenie)
1333	On	~6.0w (screenie)	~8.2w (screenie)
1800	Off	~6.6w (screenie)	~9.6w (screenie)
1800	On	~6.5w (screenie)	~9.6w (screenie)

So conclusions based on my testing conditions (other testing conditions may find something else but lets save that for next weekend):
1. Zen3 SOC power increases significantly above 1600IF, whereas Zen2 does NOT have the same behavior.
2. Zen3 SOC powerstates are broken (idle vs load is only 1w difference), whereas Zen2 are working (idle vs load is 2-3w difference)
3. Uncore OC setting in UEFI definitely does nothing (at least using my board bios version)

So, for your case if you really want to reduce the SOC power, either:
1. Go down to RAM at 3200 with IF at 1600 to keep 1:1 (tighten the timings to make up for the lost in frequency of course) OR
2. Find the lowest stable vsoc that you can at the frequency you want to keep it at
3. Cross fingers and hope AMD fixes it

And for your CPU SVI2 TFN not idling...sorry I dont have a 5950x to test...

I got weird/nonsense answers on my enquiry on this strangeness.
Something about CPU PCIe 4.0 link to chipset PCIe 4.0 using more power (doesn't explain 3950x + x570 ability to idle properly, the enquire was about 5950x + x570 and 3950x + b550 soc power consumption) and cache segmentation due to different CCX configuration (Maybe?)

Something like 3950x has 4 separate 16MB L3 cache while 5950x has 2 separate 32MB L3 cache.
Example, if app requests one thread, assuming the thread doesn't get bounce around;

3950x = one 16MB L3 cache will be powered on while the remaining three 16MB L3 cache powered down.
5950x = one 32MB L3 cache will be powered on while the remaining one 32MB L3 cache powered down.


Extra 15W or so when idling compared to Zen 2.
Granted the 15W is "nothing", but it just doesn't look right to me.

You have done the community a great work by testing all those configuration.

Currently, I am able to boot 5950x + x570 with VSOC 0.95V. Any lower, the system will automatically reboot instantly once reaching win10 logo.
3733Mhz XMP with SOC power consumption constant at 11W with 0.95V. Kinda a waste if I can't run my RAM at its rated speed since I spent so much on it. 64GB total.
3200Mhz with tight timing, maybe I should consider it later. I am using the RAM as RAMDrive.

The 5950x CPU SVI2 TFN = I give up and manually create shortcuts at desktop to switch between Power Saver and Balanced power profile for time being.

Let hope the third option on AMD fixing it will be on the table.
Problem is, there isn't much people making noise about this.

USB issue is more critical right now in the community.

Wow 0.95v is pretty low at least you can run stable but if I were you, just leave it as it is and just close one eye about it, it wont cause any damage anyways... right now youre risking on instability for running the VSOC so low

SVI2TFN, since its kinda confirmed that its powerplan related, why dont you try the custom powerplan posted in the OCN forums here. Try out the BalancedLowPower, see that if does something. I honestly don't see any major change myself, but that's prolly coz I'm using the 5600x and not the other higher core cpus, so i didnt use that powerplan

This post has been edited by x800: Mar 28 2021, 09:45 PM

I will test the 5950X for few days compiling code from time to time, let hope it will not randomly reboot with 0.95v.
For backup purpose, I better standby 3950x too.

Interesting, will try those power plans next weekend, gotta work for next 5 days.

All in all after all those testings though, soc power consumption doesnt really affect the end user experience. Idle speed temps, same oso not much affect to end user.

But the usb issues that many users are facing does affect the end user experience (bluetooth and LAN issues too for some Gigabyte boards). 1.2.0.1 Patch A beta bioses are out for some boards which supposedly brings the 1.2.0.2 usb fix earlier, but I've read mostly negative feedback.

Now I'm just waiting for desktop cezanne to see what more I can play with in the future..

Wow I haven't been reading this thread ever since I got my AMD5600x plus 3070. Not sure what's the big hoo ha here.

For me I haven't encounter anything nasty with 5600x yet... touchwood. Previously I was an Intel user. First time AMD. That being said I don't overclock and hardly play games. In fact my PC is less than 50 degrees most of the time and my 3070 fans hardly spin. So far no issue with AMD yet. Those random reboots or hanging I think is more on Windows? At least I don't encounter constant reboot.

I just hope my 5600x last, I did get a good cooler and thermal paste for it.