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

Gonna taken a guess at why the techpowerup 7700X results appear different to those in many other reviews, e.g Techspot.

They weren't using a particularly high air end cooler (Noctua NH-U14S), and it looks like it may have been thermal throttling:
www.techpowerup.com

AMD Ryzen 7 7700X Review - The Best Zen 4 for Gaming

With the Ryzen 7 7700X, AMD is introducing their fastest Zen 4 processor for gamers. In our review we found out that gaming on the 7700X runs better than the 7900X and 7950X, thanks to the single CCD design of the 7700X. Just like on other high-end AM5 CPUs, temperatures are a problem though.
www.techpowerup.com www.techpowerup.com

In their review, the 7700X peaks at 94 Celsius with this cooler. If that's correct, it implies that it may be neccesary for many people to configure PBO2 undervolting and temp limits to get the best out of their CPUs.
 
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g67575 said:
Gonna taken a guess at why the techpowerup 7700X results appear different to those in many other reviews, e.g Techspot.

They weren't using a particularly high air end cooler, and it looks like it may have been thermal throttling:
www.techpowerup.com

AMD Ryzen 7 7700X Review - The Best Zen 4 for Gaming

With the Ryzen 7 7700X, AMD is introducing their fastest Zen 4 processor for gamers. In our review we found out that gaming on the 7700X runs better than the 7900X and 7950X, thanks to the single CCD design of the 7700X. Just like on other high-end AM5 CPUs, temperatures are a problem though.
www.techpowerup.com www.techpowerup.com

In their review, the 7700X peaks at 94 Celsius.
Click to expand...
They also only used a 3080, when everyone else used 3090TI / 6950 XT. Was an odd choice for a CPU test.
 
LtMatt said:
They also only used a 3080, when everyone else used 3090TI / 6950 XT. Was an odd choice for a CPU test.
Click to expand...
In fairness it at least gives a real world overview on the fact that unless you on the latest and greatest GPU then you are really not likely to need to upgrade and if you are on older hardware looking to upgrade sooner than later just read the other reviews with the 3090TI's etc. Different data points at different prospective can still be useful. It maybe isn't' the best pure CPU review but it is a good real world review.
 
I'm still on the fence about going 7950x over the intel option (also a bit concerned the £ is going to tank more and things cost more so...)
Looking at the RAM at the moment as it's something that's confused me, both these sets I've checked the QVL and they work
I'm after 64GB so looking at the below
www.overclockers.co.uk

Kingston FURY Beast 32GB (2x16GB) DDR5 PC5-48000C40 6000MHz Dual Channel Kit

Order Kingston FURY Beast 32GB (2x16GB) DDR5 PC5-48000C40 6000MHz Dual Channel Kit now online and benefit from fast delivery.
www.overclockers.co.uk www.overclockers.co.uk
On the product page it says
- AMD EXPO Certified
Click to expand...
does this mean I can use the EXPO mode on these?
Only problem with the above is not enough RGB so I was looking at the below
www.overclockers.co.uk

Corsair Dominator Platinum RGB 32GB (2X16GB) DDR5 PC5-44800C36 5600MHz Dual Channel Kit - Black (CMT32GX5M2B5600C36)

Order Corsair Dominator Platinum RGB 32GB (2X16GB) DDR5 PC5-44800C36 5600MHz Dual Channel Kit - Black (CMT32GX5M2B5600C36) now online and benefit from fast delivery.
www.overclockers.co.uk www.overclockers.co.uk
But with these I couldn't use to EXPO thing right? I just have to put them in and out the box go with the speeds or have I misunderstood this?

It's a lot of money to spend so trying to make sure I'm not screwing myself.

Thanks :D
 
Curlyriff said:
In fairness it at least gives a real world overview on the fact that unless you on the latest and greatest GPU then you are really not likely to need to upgrade and if you are on older hardware looking to upgrade sooner than later just read the other reviews with the 3090TI's etc. Different data points at different prospective can still be useful. It maybe isn't' the best pure CPU review but it is a good real world review.
Click to expand...
g67575 said:
Well, I don't think a RTX 3080 is likely to be an issue at 720p ;)
Click to expand...
I get the point, but if the GPU is not strong enough then it shortens the gap between the CPUs. As the whole purpose is to test CPU performance, you want the fastest GPU for at least the initial performance review.

This goes someway to at least explain the difference in results of TPU vs everyone else, and maybe there are other factors too tbf.
 
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cHk4 said:
I'm still on the fence about going 7950x over the intel option (also a bit concerned the £ is going to tank more and things cost more so...)
Looking at the RAM at the moment as it's something that's confused me, both these sets I've checked the QVL and they work
I'm after 64GB so looking at the below
www.overclockers.co.uk

Kingston FURY Beast 32GB (2x16GB) DDR5 PC5-48000C40 6000MHz Dual Channel Kit

Order Kingston FURY Beast 32GB (2x16GB) DDR5 PC5-48000C40 6000MHz Dual Channel Kit now online and benefit from fast delivery.
www.overclockers.co.uk www.overclockers.co.uk
On the product page it says
does this mean I can use the EXPO mode on these?
Only problem with the above is not enough RGB so I was looking at the below
www.overclockers.co.uk

Corsair Dominator Platinum RGB 32GB (2X16GB) DDR5 PC5-44800C36 5600MHz Dual Channel Kit - Black (CMT32GX5M2B5600C36)

Order Corsair Dominator Platinum RGB 32GB (2X16GB) DDR5 PC5-44800C36 5600MHz Dual Channel Kit - Black (CMT32GX5M2B5600C36) now online and benefit from fast delivery.
www.overclockers.co.uk www.overclockers.co.uk
But with these I couldn't use to EXPO thing right? I just have to put them in and out the box go with the speeds or have I misunderstood this?

It's a lot of money to spend so trying to make sure I'm not screwing myself.

Thanks :D
Click to expand...
I believe so yes, however I'd wait for @Gibbo confirmation as those DIMMS lack the AMD EXPO branding.
 
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LtMatt said:
I get the point, but if the GPU is not strong enough then it shortens the gap between the CPUs. As the whole purpose is to test CPU performance, you want the fastest GPU for at least the initial performance review.

This goes someway to at least explain the difference in results of TPU vs everyone else, and maybe there are other factors too tbf.
Click to expand...
What about the fact that reviewers were told by AMD they had to test with ram kits that void the warranty?
 
LtMatt said:
I believe so yes, however I'd wait for @Gibbo confirmation as those DIMMS lack the AMD EXPO branding.
Click to expand...

Kingston have made it somewhat confusing as their website states XMP3.0 and EXPO certified, I think what they might be eluding to is that their memory supports both platforms, but I am not so sure if you can just plug in and run at advertised speeds. So be prepared to manually set them up.

To further confuse matters they just released more kits called EXPO and XMP3.0, so both platforms, these will appear on the website in about an hour and are available in 5600 and 6000MHz with C36 timings, also RGB versions too, look out for them appearing. :)
 
Gibbo said:
Kingston have made it somewhat confusing as their website states XMP3.0 and EXPO certified, I think what they might be eluding to is that their memory supports both platforms, but I am not so sure if you can just plug in and run at advertised speeds. So be prepared to manually set them up.

To further confuse matters they just released more kits called EXPO and XMP3.0, so both platforms, these will appear on the website in about an hour and are available in 5600 and 6000MHz with C36 timings, also RGB versions too, look out for them appearing. :)
Click to expand...
Cheers Gibbo.

@cHk4 That's probably a no then. The AMD EXPO profile are stored on the DIMMS, so unless they have the AMD EXPO branding then it won't have them. However, it may have alternative profiles which can be used. That said, this is just speculation on my part and I don't have any non AMD EXPO DIMMs to test with unfortunately.

Joxeon said:
What about the fact that reviewers were told by AMD they had to test with ram kits that void the warranty?
Click to expand...
Using EXPO/XMP memory is considered overclocking. Overclocking voids warranty, this is not new and this would apply anywhere. No one filing a warranty claim is going to admit they overclocked, well I guess there's always one person that might. Therefore, warranty claims should get processed just fine so long as the claim is legitimate. This has been the same on previous gens too, it's not new.

Reviewers were asked to test using two identical kits, running at the same frequency for fair comparisons Vs Intel processors. Didn't want to have the AMD processors running a faster kit and the Intel stuck at 4800. This is why you see places like HUB backing up the results AMD showed, as although they used even faster memory for Alder Lake (6400) the differences were not huge.

Meanwhile, at the Intel event showing off Raptor lake, Ryzen processors were stuck using 3200Mhz, when its widely known that Zen3 sees big improvements running at 3600-3800Mhz CL14-16. Alder Lake was also running 4800Mhz memory vs Raptor Lake at 5600. What do you think about that?
 
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cHk4 said:
God this is all so confusing lol. Do you know when your first EXPO stock hits or the RGB EXPO :D? I don't even know if it's something I need. In regards to this kit here as it's recommended to just go 6000 would I be ok with this? https://www.overclockers.co.uk/king...00c40-6000mhz-dual-channel-kit-my-29j-ks.html
Click to expand...
Remeber all it will do is save you time and effort setting memory frequency, timings and voltages yourself. So in theory should be able to buy a non EXPO kit, enter the BIOS and set all these yourself. As noted below, XMP profiles will work in the same way and the kit will likely have some of those which you can apply instead. The difference between them and EXPO is that EXPO has been certified stable for Ryzen 7000 series, where as XMP have not.

It's definitely a nice to have, but not a must have.
g67575 said:
If you get XMP3.0 modules, these profiles can be loaded on AM5 systems, can't they?
Click to expand...
Yes via BIOS.
 
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LtMatt said:
Cheers Gibbo.

@cHk4 That's probably a no then. The AMD EXPO profile are stored on the DIMMS, so unless they have the AMD EXPO branding then it won't have them. However, it may have alternative profiles which can be used. However this is just speculation on my part and I don't have any non AMD EXPO DIMMs to test with unfortunately.


Using EXPO/XMP memory is considered overclocking. Overclocking voids warranty, this is not new and this would apply anywhere. No one filing a warranty claim is going to admit they overclocked, well I guess there's always one person that might. Therefore, warranty claims should get processed just fine so long as the claim is legitimate. This has been the same on previous gens too, it's not new.

Reviewers were asked to test using two identical kits, running at the same frequency for fair comparisons Vs Intel processors. Didn't want to have the AMD processors running a faster kit and the Intel stuck at 4800. This is why you see places like HUB backing up the results AMD showed, as although they used even faster memory for Alder Lake, the differences were not huge.

Meanwhile, at the Intel event showing off Raptor lake, Ryzen processors were stuck using 3200Mhz, when its widely known that Zen3 sees big improvements running at 3600-3800Mhz CL14-16. Alder Lake was also running 4800Mhz memory vs Raptor Lake at 5600. What do you think about that?
Click to expand...

Interesting then that Ryzen 7000 will train XMP or in this case EXPO before it even boots into windows for the first time.

No excuses for running slow memory and loose timings in reviews.

AMD are learning..... :)
 
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LtMatt said:
or lake, Ryzen processors were stuck using 3200Mhz, when its widely known that Zen3 sees big improvements running at 3600-3800Mhz CL14-16. Alder Lake was also running 4800Mhz memory vs Raptor Lake at 5600. What do you think about that?
Click to expand...
These are all the officially supported frequencies though?
 
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