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*** AMD "Zen 4" thread (inc AM5/APU discussion) ***
Associate
- Joined
- 22 Oct 2012
- Posts
- 1,092
It wouldn't be adaptive though. You'd need to set - as you say - the fan speed to what you're comfortable with 24/7, rather than what you'd allow it to peak at during intensive usage. Which means you lose the difference in cooling between your 24/7 and peak settings.
For me (I demand a completely silent PC when just browsing or watching media) this would be a significant problem. However another poster suggested there's an upcoming ECO mode, which restores behaviour to the Zen 3 template of hitting TDP etc before hitting the thermal limit.
Soldato
After watching Jay and Steve do stock and overclocking testing with water, AC and LN2, I've got a kind of idea of the behaviour profile of a 7950x
By default, the 7950x's clock profile is quite conservative under water/air cooling and if you have a decent air cooler or AIO you'll be looking at your 7950x doing 5/5.1ghz all core.
If you happen to get better than AIO temps by either using an AC unit, sticking your radiator in the fridge, LN2, delidding direct die or w/e you can think of, that stock 7950x will run at 5.4ghz all core but won't go higher as the stock voltage create a power limit.
This tells us that the 95c temp limit, is limiting our performance - a stock 7950x is actually trying to reach 5.4ghz all core but it can't because normal AIO and air cooling isn't good enough.
But like I said the 7950x is very conservative and you can get better performance without better cooling - by doing manual adjustments in the bios you can get the 7950x to 5.3ghz, maybe 5.4ghz with Air or AIO cooling by playing around with voltage or just forcing it to push a fixed clock. And I think as time passes, people will find way to go even higher than 5.4ghz on air/water
By default, the 7950x's clock profile is quite conservative under water/air cooling and if you have a decent air cooler or AIO you'll be looking at your 7950x doing 5/5.1ghz all core.
If you happen to get better than AIO temps by either using an AC unit, sticking your radiator in the fridge, LN2, delidding direct die or w/e you can think of, that stock 7950x will run at 5.4ghz all core but won't go higher as the stock voltage create a power limit.
This tells us that the 95c temp limit, is limiting our performance - a stock 7950x is actually trying to reach 5.4ghz all core but it can't because normal AIO and air cooling isn't good enough.
But like I said the 7950x is very conservative and you can get better performance without better cooling - by doing manual adjustments in the bios you can get the 7950x to 5.3ghz, maybe 5.4ghz with Air or AIO cooling by playing around with voltage or just forcing it to push a fixed clock. And I think as time passes, people will find way to go even higher than 5.4ghz on air/water
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Associate
Psst undervolting. I think there is a video incoming of Wendel overclocking via undervolting as he mentioned this in his recent motherboard review.
Jay tried undervolting but I don't think he quite knows what he's doing so it kept crashing anytime he tried it. Steve said he would undervolt on his stream today but I stopped watching before he got to it. The skaterbench guy got his 7950x to boot into windows and it can run a few seconds of benching load before crashing at 6ghz all core using an AIO cooler and tuned curve optimizer
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From Puget Systems, the 7950x is 53% faster than a 12900KS in Unreal Engine 5
www.pugetsystems.com
Just to be clear, this isn't 53% faster in playing UE5 games, its 53% faster in using UE5 to make games
Unreal Engine: AMD Ryzen 7000 Series vs Intel Core 12th Gen
AMD's new Ryzen 7000 Series of processors have arrived, promising faster performance along with new features like support for DDR5 memory. The previous gen Ryzen 5000 already faired well against Intel's 12th generation in Unreal Engine. Will AMD be able to improve its lead with these new CPUs?
www.pugetsystems.com
Just to be clear, this isn't 53% faster in playing UE5 games, its 53% faster in using UE5 to make games
Associate
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- 28 Sep 2018
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- 2,424
AMD Ryzen 7000 heatspreader and cooling analysis - temperatures, hotspots and problems | Page 4 | igor´sLAB
Today’s article will focus exclusively on the heatspreader of the Ryzen 7000 CPUs and, of course, on cooling, the optimal application of thermal paste and the question of where the nasty hotspots…
www.igorslab.de
Similar to how the 5800x was the hotter cpu, same 1CCD heat density issue here. My apologies for making the 9900k heat density comparison before. This is much worse.
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Soldato
Watching jay when it comes to PC tuning...yeah, don't do that
Associate
I think I may actually wait for way more tests to appear and more boards before making a choice. Or even wait for some X3D action next year
In addition to what Dave2150 has posted, Nvidia have stated 850W is enough - this must apply to their FE gpu's - as Gibbo has stated some AIB 4090's have spec'd 1200W for their cards. A few ATX 3.0 psu's are available to buy from a competitor but not much choice as yet. OC's have them to pre-order.
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Soldato
I'd bought the 5800X3D on release with the intention of skipping the next generation, because my PC is just for general use and gaming these days.
I'm pleased with my decision.
I'm pleased with my decision.
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Soldato
Should I hold onto my ram and cpu when they are delivered and wait for b650 boards or get x670? I was looking at the tuf one again but not sure.
Soldato
Jay doesnt understand AMD full stop - it showed when his `uber` 6900XT oc video had lower clocks than everyone on this forum.....
yes to those things
Personally, I'm waiting for the B650 boards, they look decent.
Soldato
Think there's likely to be any price drops on the cpus soon due to raptor lake? Don't want to get caught out there, but I can at least keep hold of the ram because it's gone up in price since ordered anyway. I might also wait for b650 since they're releasing so soon then.yes to those things
Personally, I'm waiting for the B650 boards, they look decent.
Prices will rather go up than down due to poor £ vs $ exchange rate.
Raptor Lake is priced very similar to Zen4 so don't expect any price changes unless it will be a lot faster which is unlikely.
