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*** AMD "Zen 4" thread (inc AM5/APU discussion) ***
Soldato
- Joined
- 30 Jul 2012
- Posts
- 2,775
No, barely any difference performance wise (10 and 11). The E cores do nothing, rather have all performance cores. I'll stay on LTSC until it comes to the end.
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Unless anyone has managed to find somewhere else on the internet that already has the info, it could be useful to create a list of which coolers are compatible with AM5 without modification or needing new mounting brackets
My understanding is that any cooler that comes with a requires backplate is unlikely to work without a new bracket
My understanding is that any cooler that comes with a requires backplate is unlikely to work without a new bracket
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If it's reaching 95c max on 360 AIOs then lesser coolers must be throttling
Associate
- Joined
- 27 Apr 2014
- Posts
- 859
IT does not have to run at 95°C on a 360 AIO.I would say maybe listen to real owners of the AM5 gear.I am not picking on you but I have not been on this forum in a year or so and the same nuts are saying the same nutty stuff lol funny stuff
Cinebench R23 AMD Ryzen 7700X 5550Mhz All Core Overclock Max Temperature 79°C Multi 21591
Deathloop 4K HDR PC Gameplay AMD 7700X 5700Mhz ALL CORE
The new ryzen cpu's essentially overclock themselves to run at 95.
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I think you'd be fine on a good 240 aio for even a 7950x. There was a review site that recommended the af2 240. This is the aio I'll probably go for as it's reasonably priced and has good performance. I'd also undervolt my 7950x and try to get it to run at a slightly lower temp without harming performance which looks easily done.
50c in gaming,nice
Permabanned
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- 28 Sep 2018
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PSA: When looking at hwinfo and esp when messing with under volting, CO, etc
You need to pay attention to Effective clocks, not the read clocks. Effective clock section is located right below the main clock.
Effective clocks are what the chip is actually running. It’s how you know if you’re clock stretching. Zen4 will clock stretch/misread a lot more than previous generations fwiw.
You need to pay attention to Effective clocks, not the read clocks. Effective clock section is located right below the main clock.
Effective clocks are what the chip is actually running. It’s how you know if you’re clock stretching. Zen4 will clock stretch/misread a lot more than previous generations fwiw.
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afaik hwinfo doesn't have a way to detect clockstretching. The effective clock metric is basically core frequency multiplied by core usage
the main indicator that you are getting clock stretching is lower performance
You'll still get silly high temperatures (94C+) without exotic cooling, due to AMD's pathetic design of IHS/mounting mechanism.
Permabanned
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- 28 Sep 2018
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Effective is what's running under load. If you run something like CB which is a sustained CPU load and your read clocks are showing 5.2 but your effective under load is showing 4.9, your score is going to reflect that of 4.9, not 5.2
All people have to do is open up the section and pay attention:
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Do you have yours undervolted mate or just normal?
Vs the Intel LGA1700 which can bend the CPU... best of two bad choices, one can be fixed in software the other needs a hardware mod.
Soldato
- Joined
- 16 Feb 2010
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- 5,223
- Location
- North East England
£8 mod that many find doesn't make a difference.
Soldato
- Joined
- 16 Feb 2010
- Posts
- 5,223
- Location
- North East England
Max 125 watts is nuts for that performance.
what a thick-ass IHS.
Last CPU I delidded and ran direct die cooled was a socket 939 Opteron 170.
Previous CPU I delidded and replaced TIM with liquid metal was Skylake 6700K.
Amount of hoops Der8auer needed to jump through to get direct die cooling on Zen4 is scary. Not to mention a destroyed 7700X
But the potential gain - nice and cool chip, higher boost - is just too much.
Unfortunately because the main selling point of AM5 is its longevity, not likely they would change much about socket mounts or IHS in this or next couple iterations of Zen.
So I hope there should be a number of delid related tools and cooling mounts on the market in near future.
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Yes its not ideal is it, I wonder though could they prehaps cnc the internal of the IHS and use a copper insert in future revisions, that would probably help somewhat.
| Rank | Metal | Thermal Conductivity [BTU/(hr·ft⋅°F)] |
| 1 | Copper | 223 |
| 2 | Aluminium | 118 |