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

In their slides. Main thing is 120hz at rgb/444 chroma. uhd 770 can do 120hz but not rgb.



Okay I’ll be sure to check it at full RGB and let you know.
 
I though 94°C / 95°C is their new boost temp: that is while the temp is not higher than 95°C it will boost clocks until that point. So temps don't tell you the real clocks as a poor cooler might hit 4.6GHz at 95°C, a good cooler might hit 5.0GHz at the same 95°C, while an excellent cooler might hit 5.5GHz. (All numbers plucked out of the air to give an example!)

And that's before the silicon lottery is taken into account. Just what could theortically happen with the same silicon using different coolers. Like when Nvidia moved to their boost thing, predictability has gone out the window.


With the behaviour of Zen4, a temperature reading can no longer tell you if your CPU cooler is not good or your thermal paste is not good or your mounting is not good.

It's a mindset shift that people will need to get around and adjust to.

The way that you know your cooling is sufficient is that your your all core clockspeed and final scores in Cinebench R23 multithread (or other multithreaded benchmarks) matches or exceeds the reviews for that chip using similar cooling.

And that's it, the clockspeed and performance is the only quick way to tell if your cooling is working properly
 
With the behaviour of Zen4, a temperature reading can no longer tell you if your CPU cooler is not good or your thermal paste is not good or your mounting is not good.

It's a mindset shift that people will need to get around and adjust to.

The way that you know your cooling is sufficient is that your your all core clockspeed and final scores in Cinebench R23 multithread (or other multithreaded benchmarks) matches or exceeds the reviews for that chip using similar cooling.

And that's it, the clockspeed and performance is the only quick way to tell if your cooling is working properly

What do you plan to run your CPU and case fans at? Using normal method of making a fan curve follow CPU temperature, would result in a very loud system with the CPU regularly at 94C.
 
In their slides. Main thing is 120hz at rgb/444 chroma. uhd 770 can do 120hz but not rgb.



If it only says 4K 60 in the slides then it will most likely be 4:2:0 chroma subsampling at 120Hz. My 5700g uses 4:2:0 subsampling over a HDMI 2.1 port, but strangely it can do 4K 144Hz full RGB when using DisplayPort.
 
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Just read about a potential issue with stickers covering the DRAM sockets on ASRock motherboards - some users are finding them tricky to remove and some have effectively trashed their DRAM sockets with bits of sticker among the contacts:
.... guess who bought an ASRock motherboard here....
 
Big Zen4 review roundup on Reddit analyzing all of the data. End result? The 58003DX is as fast as any other CPU at gaming. https://www.reddit.com/r/hardware/comments/xs82q2/amd_ryzen_7000_meta_review_25_launch_reviews/

Until you test games on a 'normal' system, which will have a bunch of background applications running while gaming (youtube, discord, spotify, etc etc) and the 8 cores can't keep up.

Really hope we see a 12 or 16 core version with V-Cache soon, that will beat anything Intel can release for gaming for probably 2-3 years. Meteor Lake is delayed after all.
 
You know sales are bad when retailers are throwing in freebies on a stuff that's only been out a few days.
 
Just read about a potential issue with stickers covering the DRAM sockets on ASRock motherboards - some users are finding them tricky to remove and some have effectively trashed their DRAM sockets with bits of sticker among the contacts:
.... guess who bought an ASRock motherboard here....
Saw this on Redd and it affects multiple brands... insane how anyone can let this happen and whoever thought this was a good idea deserves to be fired.
 
You know sales are bad when retailers are throwing in freebies on a stuff that's only been out a few days.
Maybe, but MicroCenter are well known for doing crazy deals like "free" motherboard bundles etc. even - or more often - on just released stuff.
They probably do get some special price support for these deals.
Strictly in-store only, of course.
 
I wanna see people running their AMD CPUs at 115C in their signatures :)

3600 upgrade thoughts again: On a sliding scale of sensible to crazy I think a 5600/5600X would be the sensible end. The AM5 price tag is too much right now, I actually lol'd when I saw motherboard prices, they START at £330 erm ok. I'm sure cheaper boards are on their way but damn.
 
Maybe, but MicroCenter are well known for doing crazy deals like "free" motherboard bundles etc. even - or more often - on just released stuff.
They probably do get some special price support for these deals.
Strictly in-store only, of course.


Gibbo had some good news about Zen4 sales:

Underwhelming?
Though by no means the numbers are not that of Ryzen 5000 but no one was ever predicting they would be due to the change of the market, the actual sales are incredible especially as the majority of the sales are all on the flagship 7950X, we've already sold over 200 of them. :)

So sales of the flagship 7950X are good, though overall sales are "not that of Ryzen 5000 launch". Though as I (and many others) have been saying for months - the cost of investment to get on the AM5 platform is just too high for mainstream. There'll always be the 1% buying flagships, it's the mainstream that's the largest volume and that much more important option.

I feel AMD should have copied Intel and included a DDR4 memory controller, allowing AM5 to have DDR4 boards. Then AMD could have made motherboards as cheap as Z690 ones, people could re-use existing DDR4 and I'm sure sales of the non flagship CPU's would be better.

Then again - if AMD are going to release a > 8 core Zen4 with V-Cache late this year/early next year, it's going to destroy all Intel CPU's in gaming performance, probably including meteor Lake. That'll do wonders for sales.
 
What do you plan to run your CPU and case fans at? Using normal method of making a fan curve follow CPU temperature, would result in a very loud system with the CPU regularly at 94C.

I use water cooling, so fan speeds don't matter for CPU temperature, I can run fans at 400rpm even. I set my fan curve on GPU temp not CPU temp
 
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IMHO I think that DIY / enthusiast Zen4 sales look pretty good overall. Pricey maybe, but remember Zen4 dies have a wider market to fill. It's also possibly the case that the 7 series DIY chips are not the best silicon. The best chips being siphoned off for the lucrative DC / server market.
We know the performance results from a 7950 at 50 /65 watts. Imagine 4 of these, or even 6 of them 'glued' together - 96 cores @ 300w. IMHO Lisa is pretty smart. Of course she wants fantastic sales in every dept. but I think she has options that other players don't have. Platform change? risky or smart? Either way, it has to be done (if you want to stay ahead :)).
 
Gibbo had some good news about Zen4 sales:



So sales of the flagship 7950X are good, though overall sales are "not that of Ryzen 5000 launch". Though as I (and many others) have been saying for months - the cost of investment to get on the AM5 platform is just too high for mainstream. There'll always be the 1% buying flagships, it's the mainstream that's the largest volume and that much more important option.

I feel AMD should have copied Intel and included a DDR4 memory controller, allowing AM5 to have DDR4 boards. Then AMD could have made motherboards as cheap as Z690 ones, people could re-use existing DDR4 and I'm sure sales of the non flagship CPU's would be better.

Then again - if AMD are going to release a > 8 core Zen4 with V-Cache late this year/early next year, it's going to destroy all Intel CPU's in gaming performance, probably including meteor Lake. That'll do wonders for sales.

the problem is not the RAM, its that x670 motherboards cost more than your CPU, the B series motherboards need to come out then Zen4 sales will pickup.

The reason why 7950x sales are still good is because people who buy the ultra high end parts don't care about price, me included, I've already ordered a 7950x and x670e ROG Crosshair Hero.

The entry and mid range of the market are very price sensitive, sales of the 7600x and 7700x will remain constricted until B series boards arrive.
In fact, for anyone who is at that entry end of the market, Q1 next year will be a better time to buy, I wouldn't buy anything this year if I was price sensitive.
 
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