Poll: Ryzen 7950X3D, 7900X3D, 7800X3D

[Poneros]

The only thing that concerns me with the 7000 series X3D chips is that the original 5800X3D was more sensitive to temperatures and put out more heat than a regular 5800X and that was with a non-scuffed thick a$$ IHS

It’s why I’m putting a big AIO on mine. The TDP is starting from a lower point which will also help.

Yeah but the issue is more one of thermal density & thermal conductivity. Big AIO or not, it won't really matter that much. The real solution involves either delidding or at least lapping, sadly both very risky endeavours.

I wonder if they'll keep the same design for Zen 5 or if they'll try to improve it. I reckon they'll stay the course since this will maintain compatibility better.

 

[welshrat]

Yeah but the issue is more one of thermal density & thermal conductivity. Big AIO or not, it won't really matter that much. The real solution involves either delidding or at least lapping, sadly both very risky endeavours.

I wonder if they'll keep the same design for Zen 5 or if they'll try to improve it. I reckon they'll stay the course since this will maintain compatibility better.

Surely though they can do something with the design to make a thinner ihd and still keep compatibility. Not sure how, but somehow raise the die.

 

[Dave2150]

Surely though they can do something with the design to make a thinner ihd and still keep compatibility. Not sure how, but somehow raise the die.

Would be a nice surprise if they have made optimizations for Zen4 X3D but haven't talked about them yet. X3D requires new silicon/packaging, so this would have had to be revisited anyway.

 

[Dave2150]

I’ve gone with EXPO 6000 C30 RAM.

Same, ordered the Dominator Platinum 6000Mhz EXPO kit, (CAS 30-36-36-76). Same price as the Vengeance RGB for some reason. Really didn't like the RGB colours on the vengeance kits, looks washed out and too gaudy.

 

[delta0]

Same, ordered the Dominator Platinum 6000Mhz EXPO kit, (CAS 30-36-36-76). Same price as the Vengeance RGB for some reason. Really didn't like the RGB colours on the vengeance kits, looks washed out and too gaudy.

Same. Although I think the vengeance kit is mis-priced. Should be about £100 less.

Edit. I see the price dropped.

 

[Dave2150]

Same. Although I think the vengeance kit is mis-priced. Should be about £100 less.

Edit. I see the price dropped.

Yeap noticed this too. As my order didn't ship yet, I've asked customer service that they refund me the difference (Dominator 6000Mhz C30 kit is now £20 less).

 

[Spuddy]

Apologies if this has already been mentioned but do we have an expected price tag on the 7800x3d?

Was planning on waiting until Feb to potentially grab one and date my very aged i5 2500k system. However, it's just died on me tonight! So kinda wanna replace this sooner rather than later. If the 7800x3d is gonna be a £500+ cpu it'll be too rich for my casual gaming needs and I'd rather buy a 7600x/7700x or Intel.

 

[GreatAuk]

Apologies if this has already been mentioned but do we have an expected price tag on the 7800x3d?

Was planning on waiting until Feb to potentially grab one and date my very aged i5 2500k system. However, it's just died on me tonight! So kinda wanna replace this sooner rather than later. If the 7800x3d is gonna be a £500+ cpu it'll be too rich for my casual gaming needs and I'd rather buy a 7600x/7700x or Intel.

Not yet... I think Gibbo's best guess was $499, plus or minus $100.

Based in current electronics pricing that probably means it'll be just over £500 here I'd guess?

Does seem a bit steep so hoping it comes in a bit lower than that or drops soon after launch... will see.

 

[Hotwired]

I don't expect anything interesting in a good sense to happen in the reviews.

We know what the cache does so best case it does well where it did well before on 8c then for the 12 and 16 we get to see what the compromises are.

Then round it off with answering if the frequency hit is worth the extra £100-200 this time.

 

[mahius]

Apologies if this has already been mentioned but do we have an expected price tag on the 7800x3d?

Was planning on waiting until Feb to potentially grab one and date my very aged i5 2500k system. However, it's just died on me tonight! So kinda wanna replace this sooner rather than later. If the 7800x3d is gonna be a £500+ cpu it'll be too rich for my casual gaming needs and I'd rather buy a 7600x/7700x or Intel.

Given the recent reviews and depending on pricing, you might be better off going for the 7600/7700 non-x. There 7600 makes the 7600x kinda pointless if there is a big price gap between the two, since they have almost the same performance (can also remove power limit on 7600 to make it perform even more same as 7600x).

My concern is with the non-x chips being cool, low power draw and cheap, will AMD release the X3D chips as the opposite option (power-hungry, hot and expensive)?

 

[Dave2150]

I don't expect anything interesting in a good sense to happen in the reviews.

We know what the cache does so best case it does well where it did well before on 8c then for the 12 and 16 we get to see what the compromises are.

Then round it off with answering if the frequency hit is worth the extra £100-200 this time.

I think the reviews will be fantastic, especially when you consider the 7950X3D performance at 120W vs the 13900K/KS, or even the 7950X at 170W. Many reviewers are now focusing on power draw, where these CPU's will truly shine.

 

[uscool]

Given the recent reviews and depending on pricing, you might be better off going for the 7600/7700 non-x. There 7600 makes the 7600x kinda pointless if there is a big price gap between the two, since they have almost the same performance (can also remove power limit on 7600 to make it perform even more same as 7600x).

My concern is with the non-x chips being cool, low power draw and cheap, will AMD release the X3D chips as the opposite option (power-hungry, hot and expensive)?

If anything the X3D will use less power over the X version during gaming the clocks will be lower and probably same to the X version during multi core workloads what does interest me is the clock speeds of the cached CCD, pretty sure the stated boost clocks are for the none cached CCD and makes the marketing look better gaming clocks will be lower , the higher models will probably have slightly higher clocks for cached ccd over the 7800x3d 5ghz otherwise wont see difference in gaming

 

[delta0]

I don't expect anything interesting in a good sense to happen in the reviews.

We know what the cache does so best case it does well where it did well before on 8c then for the 12 and 16 we get to see what the compromises are.

Then round it off with answering if the frequency hit is worth the extra £100-200 this time.

There’s no frequency hit on the top 2 models.

 

[Robert896r1]

There’s no frequency hit on the top 2 models.

It's not that clear cut. There's two CCD's and the non X3D CCD will be the one that boosts to adverstised clocks. How worker threads are allocated is TBD.

 

[delta0]

It's not that clear cut. There's two CCD's and the non X3D CCD will be the one that boosts to adverstised clocks. How worker threads are allocated is TBD.

Good point. Let’s see what the actual details are.

 

[SpudMaster]

PCWorld on Youtube did an interview with Scott Stankard from AMD who basically said the CPU's with two CCD's will boost to different speeds. Cached CCD is ~5GHZ and the non cached CCD is higher. Its been a while since I saw the video but he made it sound like the drivers will automatically choose which CCD to run on depending on the workload. Hopefully that works as intended

 

[uscool]

PCWorld on Youtube did an interview with Scott Stankard from AMD who basically said the CPU's with two CCD's will boost to different speeds. Cached CCD is ~5GHZ and the non cached CCD is higher. Its been a while since I saw the video but he made it sound like the drivers will automatically choose which CCD to run on depending on the workload. Hopefully that works as intended

If both 7900x3d and 7950x3d cached CCD run at 5ghz what would make them any better over 7800x3d in gaming ? also wouldnt the 7900x3d have 6 cores on each ccd ?

 

[SpudMaster]

If both 7900x3d and 7950x3d cached CCD run at 5ghz what would make them any better over 7800x3d in gaming ? also wouldnt the 7900x3d have 6 cores on each ccd ?

Pretty sure thats the video. At work so can't rewatched right now.

7900x3d and 7950x3d probably won't be any getting in gaming, just like all the zen3 cpus (other than the 5800x3d) pretty much performed the same in games unless the game could use more cores.
Basically what AMD have done here is allowed people to have their cake and eat it if they so wish 7800X3d is for gamers and the 2 CCD cpus are for those who want the same performance as the 7800X3D in games but also have a need for productivity workloads. You don't need to compromise with Zen4 3d cach chips providing the scheduling works properly. I can see that causing problems on release!

Don't know about the 7900X3D cores but yeah I imagine it will have 6 cores on each CCD so only 6 cached cores

 

[Deleted member 258511]

Pretty sure thats the video. At work so can't rewatched right now.

7900x3d and 7950x3d probably won't be any getting in gaming, just like all the zen3 cpus (other than the 5800x3d) pretty much performed the same in games unless the game could use more cores.
Basically what AMD have done here is allowed people to have their cake and eat it if they so wish 7800X3d is for gamers and the 2 CCD cpus are for those who want the same performance as the 7800X3D in games but also have a need for productivity workloads. You don't need to compromise with Zen4 3d cach chips providing the scheduling works properly. I can see that causing problems on release!

Don't know about the 7900X3D cores but yeah I imagine it will have 6 cores on each CCD so only 6 cached cores

A lot like the e-cores and performance cores on Intel.

 

[SpudMaster]

A lot like the e-cores and performance cores on Intel.

Yeah except essentially with AMD your getting two lots of 'performance' cores that are suited to different tasks