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Poll: Ryzen 7950X3D, 7900X3D, 7800X3D

Will you be purchasing the 7800X3D on the 6th?

  • Total voters
    191
  • Poll closed .
humbug said:
On the Zen 4X3D chips.

Testing shows there is little change in performance when you lock Zen 4 to a much lower power level, with in reason obviously, but much more so than Zen 3.

For example at its default 170 watt TDP the 7950X scores about 38,500 points in R23, using the 105 watt ECO Mode it still scores 37,500, that's 97% of its performance for 62% of the power, AMD only did this because they knew the 13900K would score over 39,000 in R23 and being just a couple of % behind looks better than being 5% behind, its all about the bar charts.

The thing with the X3D chips is the 3D stacked cache cannot tolerate the same high voltages the cache on the chip its self can, its why the 5800X3D is clocked quite a bit lower than the 5800X, about 15%, Because Zen 4 looses significantly less Mhz at significantly lower voltages i'm expecting the Mhz difference between the X3D version and normal ones to be less extreme than it was with Zen 3.

Food for thought, and yes i could be very wrong.
Click to expand...
AMD have already released the base and boost clocks of the 7800X3D CPUs on their product page. Comparing the 5800X3D to the 7800X3D there is a 800mhz uplift to the base clock and 500mhz to the boost clock. So it’s a nice uplift overall.
 
Iron Man said:
AMD have already released the base and boost clocks of the 7800X3D CPUs on their product page. Comparing the 5800X3D to the 7800X3D there is a 800mhz uplift to the base clock and 500mhz to the boost clock. So it’s a nice uplift overall.
Click to expand...

It says "4.7Ghz Max Boost" on the box of my CPU, its actually 4.85Ghz.

5.0Ghz is still 700Mhz off the 7950X advertised "Max Boost" which is actually 5.85Ghz.

What AMD write on the box is often not reality, but at least its in a good way...
 
Iron Man said:
Didn’t he tell his viewers that the 40xx series would be delayed so they should buy a 30xx one instead? Probably got a nice kickback from his friends who had an oversupply of 30xx as well. So not sure that his endorsement is one to rely on when it comes to these CPUs.
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I tuned into this convo half-way and knew you were talking about this guy without checking. I actually got into an argument about this with a mate, who thinks he's Robin Hood or something. He's just another techtuber, earning money with every post. They all do it to some degree. But some are absolutely shameless and if you don't realise that Youtube is just a shopping channel by now, you're probably their favourite consumer. The ones that boil my urine are the ones who double-dip, taking Patreon donations as well as sponsors. SNR is v.low with those guys.
 
Astravagrant said:
I tuned into this convo half-way and knew you were talking about this guy without checking. I actually got into an argument about this with a mate, who thinks he's Robin Hood or something. He's just another techtuber, earning money with every post. They all do it to some degree. But some are absolutely shameless and if you don't realise that Youtube is just a shopping channel by now, you're probably their favourite consumer. The ones that boil my urine are the ones who double-dip, taking Patreon donations as well as sponsors. SNR is v.low with those guys.
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I did actually watch his video which I felt bad about as its helping him make money but I stand by what I wrote and he utters this ridiculous delay rumour at 4.00 - 4.20 on this video https://www.youtube.com/watch?v=PX84uujpVLc&ab_channel=JayzTwoCents
 
Astravagrant said:
I tuned into this convo half-way and knew you were talking about this guy without checking. I actually got into an argument about this with a mate, who thinks he's Robin Hood or something. He's just another techtuber, earning money with every post. They all do it to some degree. But some are absolutely shameless and if you don't realise that Youtube is just a shopping channel by now, you're probably their favourite consumer. The ones that boil my urine are the ones who double-dip, taking Patreon donations as well as sponsors. SNR is v.low with those guys.
Click to expand...

I would be amazed if a lot of these large tech tubers don't have shares in these companies, especially Nvidia, not even necessarily shares given to them by the vendor, could be shares bought with their own money, either way its in the tech tubers own interests to show them in a good light or be a marketing arm because they are effectivly shareholders, the value of those shares depends on the vendors performance and with that you are vested in the products you're reviewing.
 
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humbug said:
It says "4.7Ghz Max Boost" on the box of my CPU, its actually 4.85Ghz.

5.0Ghz is still 700Mhz off the 7950X advertised "Max Boost" which is actually 5.85Ghz.

What AMD write on the box is often not reality, but at least its in a good way...
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That’s interesting is the max boost dependent on motherboard & cooling? I would be interested to see how far I can push the boost of the 7950x3d on release past the standard boost speeds if that’s even possible.
 
I reckon it’s going to need sone significant cooling for the silicon with the 7000 series needing extra cooling so far and the cache being stacked.
 
Iron Man said:
That’s interesting is the max boost dependent on motherboard & cooling? I would be interested to see how far I can push the boost of the 7950x3d on release past the standard boost speeds if that’s even possible.
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Cooling, not the motherboard, unless i guess if you get a really cheap one.

The closer the CPU gets to 90c the lower the clocks drop, with mine (5800X) if you can keep it under 75c it will boost to 4.85Ghz, which in games is easy, not so easy when running Cinebench.
 
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junpit said:
I reckon it’s going to need sone significant cooling for the silicon with the 7000 series needing extra cooling so far and the cache being stacked.
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The CPU heat spreader might be a tiny bit thinner for the 3D chips, this might help temps small amount as its 2mm or something for the none 3D, so it might be 1.99mm:-)
Also, dropping the power down to 105W drops the temps down a lot for a small (5-10%) all core performance drop.
 
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humbug said:
Cooling, not the motherboard, unless i guess if you get a really cheap one.

The closer the CPU gets to 90c the lower the clocks drop, with mine (5800X) if you can keep it under 75c it will boost to 4.85Ghz, which in games is easy, not so easy when running Cinebench.
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I have a ROG Ryujin II 360 so that should be good enough to get some good performance from the 7950X3D I hope as its a bit higher than the 240 AIO recommendation from AMD. Looking forward to Wednesday when I can build my new system I hope!
 
Iron Man said:
I have a ROG Ryujin II 360 so that should be good enough to get some good performance from the 7950X3D I hope as its a bit higher than the 240 AIO recommendation from AMD. Looking forward to Wednesday when I can build my new system I hope!
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I have this one.... does a good job, about 80c in R23.

Edit: with a silent fan profile.

www.overclockers.co.uk

Arctic Liquid Freezer II High Performance CPU Water Cooler - 360mm

Order Arctic Liquid Freezer II High Performance CPU Water Cooler - 360mm now online and benefit from fast delivery.
www.overclockers.co.uk www.overclockers.co.uk
 
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delta0 said:
I’m also using this cooler.
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The arctic LFII is probably the best cooler going. I’ve fitted several to my kids PCs you often find the mountings aren’t quite right (if they were bought before that revision came out like the 7000 series) but if you contact arctic they will send you any ones you don’t have FOC.
 
JGF111 said:
Guilty as charged :)

The extra couple of hundred amortized over the life of the system doesnt even make me blink. Not to mention that I do like to have as much punch as possible for those rare occassions where I want increased non-gaming performance.

I cant honestly remember the last time I've been as antsy waiting for a cpu review. I guess this is what happens when you only upgrade cpu's every 8 years lol.
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Yeah, I don't expect to upgrade very often (I haven't too much in the past) and yet one reason I want to get AM5 is because it will hopefully last more than one generation. What sort of sense does that make?

Maybe I'll get one of these and then wait until the last CPU my motherboard supports (in case the X670/B650 chipset doesn't support some of the later AM5 chips) and get that as a last hurrah.

That's sort of what I liked about the 5800X3D, it came right at the end of AM4 so made for a nice drop in replacement for a lot of people. the Zen4 X3D chips aren't really doing that are they as they've been released so early in the AM5 cycle.
 
junpit said:
The arctic LFII is probably the best cooler going. I’ve fitted several to my kids PCs you often find the mountings aren’t quite right (if they were bought before that revision came out like the 7000 series) but if you contact arctic they will send you any ones you don’t have FOC.
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Mine is an old one with early fittings, i'll have to look in to that.
 
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