*** AMD "Zen 4" thread (inc AM5/APU discussion) ***

[g67575]

How to protect cpu from a paste leak,i dont have options to buy thermal grizzly cpu guard or noctua na-stpg1

You can use electrical tape like this:

Error 410 | Screwfix

Thousands of products at low trade prices | FREE next day delivery available | 30 day money back guarantee on all orders.

www.screwfix.com

Apparently works upto 90 Celsius.

Some people think it's not necessary to cover these gaps, but I don't think there's a definitive answer yet.

Temflex is made out of vinyl, which doesn't melt until it hits 212 Celsius or greater, according to this:
https://hphtools.com/accessories/does-electrical-tape-melt/

 

[Bencher]

That's not the same thing though. The KS isn't new or revised silicon, it's just uber tier, exclusive binning that Intel will guarantee will hit the very top clocks. And will then charge a premium for that guarantee, something that only the hardcore overclockers or Intel fans will pay for. Plenty of people got KS-level clocks out of K parts (and often even going beyond) because they were lucky to get high-quality silicon, but the KS is a guarantee for the limited stock they will specifically bin.

It was the same with the 8086K. Nothing more than a highly binned 8700K that Intel could segment out for the anniversary, guarantee and extra margin, evidenced by the proportion of "regular" 8700K units that could match or beat the 8086K drastically dropping once the 8086K became a thing.

Didnt amd have the XT version of their zen 2? Only fanboys bought these you think?

 

[gerardfraser]

How to protect cpu from a paste leak,i dont have options to buy thermal grizzly cpu guard or noctua na-stpg1

You can use anything you want. Toilet paper if you want or plain old tape. I removed cooler from my AMD 7700x and there was no paste leak. I applied the paste properly first time.

Probs misunderstood but confused why those CP benches are so much lower than the review ones.

Edit: I was wrong, Guru3d used a 5950X and got 62fps avg with RT 4K on, so does this mean a 5950X is > a 7700X gaming?

You do misunderstand the testing. Sites like Guru3d do not test max settings on a PC Game unless they state they do.
I have owned 2600x/3600x/3600xt/3800x/3800xt/5600x/5800x/7700x/10850k/12600k/12600k and 7700x the better PC Gaming GPU for me. The FPS I showed is the FPS you get at 4K Psycho Ray Tracing setting on a RTX 4090 with DLSS off in Cyberpunk. With RTX 4090 all the CPU's I listed at the 4K settings would get around the same FPS or a little lower with RTX 4090.

Not trying to be mean,just giving you the best information I can and not trying to trick anyone.

 

[Noxia]

You do misunderstand the testing. Sites like Guru3d do not test max settings on a PC Game unless they state they do.
I have owned 2600x/3600x/3600xt/3800x/3800xt/5600x/5800x/7700x/10850k/12600k/12600k and 7700x the better PC Gaming GPU for me. The FPS I showed is the FPS you get at 4K Psycho Ray Tracing setting on a RTX 4090 with DLSS off in Cyberpunk. With RTX 4090 all the CPU's I listed at the 4K settings would get around the same FPS or a little lower with RTX 4090.

Not trying to be mean,just giving you the best information I can and not trying to trick anyone.

Not at all, thanks for explaining.

 

[g67575]

Interesting. Especially the fact that you could end up with a better chip in the k than the ks if you get lucky.

Thanks for the info.

Websites like the silicon lottery used to sell pre tested chips. The impression I get looking at their stats, is that some chips benefit from higher voltages (sometimes a lot), and some show barely any improvement. Either way, increasing the voltage always significantly boosts power usage (especially over 1.2v for modern Intel CPUs).

 

[mattyg]

You clever people.
My gaming rig is a 5950x and a Asus Dark Hero MB
If I get the upgrade itch to a 7950x is it just a BIOS update and swap the chip.

 

[g67575]

You clever people.
My gaming rig is a 5950x and a Asus Dark Hero MB
If I get the upgrade itch to a 7950x is it just a BIOS update and swap the chip.

Are you sure that you want a 7950X?

It looks like for gaming at least, enabling all 16 cores on the RX 7950X results in noticably lower framerates:

With 8 cores enabled (single CCD), latency is reduced, resulting in improved performance.

Maybe a good workaround, would be a software option (within the OS) to manually or automatically disable the 2nd CCD while gaming?

 

[Deleted member 258511]

Websites like the silicon lottery used to sell pre tested chips. The impression I get looking at their stats, is that some chips benefit from higher voltages (sometimes a lot), and some show barely any improvement. Either way, increasing the voltage always significantly boosts power usage (especially over 1.2v for modern Intel CPUs).

Do these sites not exist anymore? I sense overclocking isn’t as favourable as it once was.

 

[LtMatt]

Are you sure that you want a 7950X?

It looks like for gaming at least, enabling all 16 cores on the RX 7950X results in noticably lower framerates:

With 8 cores enabled (single CCD), latency is reduced, resulting in improved performance.

Maybe a good workaround, would be a software option (within the OS) to manually or automatically disable the 2nd CCD while gaming?

The software option is Ryzen Master tool which has this functionality. Unfortunately, it can only be changed via the BIOS so requires a system restart when activating through ryzen mastet tool.

 

[cliffy]

You clever people.
My gaming rig is a 5950x and a Asus Dark Hero MB
If I get the upgrade itch to a 7950x is it just a BIOS update and swap the chip.

I do not think anyone answered your questions, Apologies if they did. The answer is No, you with need a new motherboard and soem DDR5 also.

 

[g67575]

The software option is Ryzen Master tool which has this functionality. Unfortunately, it can only be changed via the BIOS so requires a system restart when activating through ryzen mastet tool.

Interesting.

And also crap design.

 

[malachi]

You clever people.
My gaming rig is a 5950x and a Asus Dark Hero MB
If I get the upgrade itch to a 7950x is it just a BIOS update and swap the chip.

I do not think anyone answered your questions, Apologies if they did. The answer is No, you with need a new motherboard and soem DDR5 also.

Also DDR5 and AM5 motherboards are not cheap at the moment.

I would stick to the your 5950x. That's what I am doing....for the AMD side anyway.

 

[LePhuronn]

You clever people.
My gaming rig is a 5950x and a Asus Dark Hero MB
If I get the upgrade itch to a 7950x is it just a BIOS update and swap the chip.

No, it's an entirely new platform.

 

[Quartz]

It looks like for gaming at least, enabling all 16 cores on the RX 7950X results in noticably lower framerates:

Nothing to do with AMD or their chips, but I'm glad that someone is giving framerates at the 0.2% level.

 

[opethdisciple]

So currently with the new Nvidia driver the single ccd cpus are best for gaming?

Making the 7700x the best AMD gaming chip?

 

[Joxeon]

Do these sites not exist anymore? I sense overclocking isn’t as favourable as it once was.

Years ago you could take a cheaper, lower clocked chip and clock it higher than a more expensive one. These days it's just not as worthwhile as the chips come pre overclocked and you're paying the extra for it.

 

[mattyg]

Also DDR5 and AM5 motherboards are not cheap at the moment.

I would stick to the your 5950x. That's what I am doing....for the AMD side anyway.

Thanks for all the replies.
Yeah looks like I'll wait.

4090 first then.

 

[Steedie]

Do we think that BIOS updates will fix the long boot times on Zen 4? It's only really cold boots but my Crosshair Hero takes about 20 seconds to post from pressing the power button. I was worried it was me but Google suggests it's a pretty common issue across the AM5 platform

 

[JAMIE_CORTEZ]

Do we think that BIOS updates will fix the long boot times on Zen 4? It's only really cold boots but my Crosshair Hero takes about 20 seconds to post from pressing the power button. I was worried it was me but Google suggests it's a pretty common issue across the AM5 platform

Think I saw a post somewhere saying this was RAM related? But that was weeks ago!

 

[mattyg]

Do we think that BIOS updates will fix the long boot times on Zen 4? It's only really cold boots but my Crosshair Hero takes about 20 seconds to post from pressing the power button. I was worried it was me but Google suggests it's a pretty common issue across the AM5 platform

Ah. Not just me then.