Review Zen4 3D review thread

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Hitman928

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Apr 15, 2012
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Thread to focus on Zen4 3D cache CPUs.

New gaming king (as most expected), though the 2 CCD 7950x3d does seem to have issues with some games, more than I would expect of it getting stuck on the "wrong" CCD. I imagine it will get cleared up with subsequent updates but we'll see. Simulated 7800X3D showed no such issues and overall has the gaming lead (real product might be slightly slower though depending on in game clocks).


Computerbase also has the 7950x3d as the gaming champ. They (and TPU) also show that efficiency while gaming is extremely good.
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Just to toot my own horn a little, it landed spot on with my prediction of fastest gaming CPU but not significantly so over a 13900k on average, but with much higher efficiency.

Additional reviews, will add more later.

Gamers Nexus
 
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Geddagod

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Dec 28, 2021
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It is 20% better in gaming and slower in many tasks than the normal version. Is it worth the extra money?
Expected it to be 5-10% faster than raptor lake, from TPU and HWUB seems like it is basically a dead draw or an inch ahead. Perhaps I was too optimistic with my predictions. Thought we would see Zen 43D improve ~20% over Zen 4, RPL being ~10% faster than base zen 4, placing it 5-10% faster than RPL.
Also weird how in 1080p gaming we see the gap between Zen 4 and Zen 43D be ~10% for HWUB but like ~18?% for TPU.
I still hold TPUs results more valid though, solely because they tested nearly 2x the amount of games HWUB did, at what, 22 IIRC?
 
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uzzi38

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Oct 16, 2019
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So there is a clear consensus that except for a few instances, a single-CCD X3D CPU, i.e. 7800X3D, will be much better for gaming than a dual-CCD CPU with only one CCD having v-Cache.

So why then does the 7900X3D and 7950X3D exist in the first place?
For people like me that use their PC for both gaming and stuff that can benefit from more cores.
 

Hitman928

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Apr 15, 2012
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Expected it to be 5-10% faster than raptor lake, from TPU and HWUB seems like it is basically a dead draw or an inch ahead. Perhaps I was too optimistic with my predictions. Thought we would see Zen 43D improve ~20% over Zen 4, RPL being ~10% faster than base zen 4, placing it 5-10% faster than RPL.
Also weird how in 1080p gaming we see the gap between Zen 4 and Zen 43D be ~10% for HWUB but like ~18?% for TPU.
I still hold TPUs results more valid though, solely because they tested nearly 2x the amount of games HWUB did, at what, 22 IIRC?

HWUB has a suite of like 50 games they run through to get an average and then pick out like 10 - 12 games across different genres that agrees closely with the large game average. They don't typically show the full game lineup for each review because it takes extra time to compile it all and get it into a video, but they will occasionally produce videos with the full lineup to show all of the results they have, after having time to do all the testing and production work required.
 

Geddagod

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Dec 28, 2021
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Wait is there a clear consensus that the 7800X3D would be a better gaming CPU than the 7950X3D? HWUB says 2% faster, so does TPU. This honestly just looks like a margin of error. Plus there are games that don't benefit from V-cache that would do better on the frequency chiplet, infrequent they may be.
 

Geddagod

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HWUB has a suite of like 50 games they run through to get an average and then pick out like 10 - 12 games across different genres that agrees closely with the large game average. They don't typically show the full game lineup for each review because it takes extra time to compile it all and get it into a video, but they will occasionally produce videos with the full lineup to show all of the results they have.
Ye but it takes a while for them to pump those reviews out, for understandable reasons of course, but still...
As of right now I think TPU's review is the way to go because it features more games, but HWUB and TPU both come to essentially the same conclusion regardless, for the flagship Intel vs AMD CPU. The only major difference was the gap between the 7950X3D and 7950X. HWUB shows a much smaller gap than TPU.
 

Hitman928

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Apr 15, 2012
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Wait is there a clear consensus that the 7800X3D would be a better gaming CPU than the 7950X3D? HWUB says 2% faster, so does TPU. This honestly just looks like a margin of error. Plus there are games that don't benefit from V-cache that would do better on the frequency chiplet, infrequent they may be.

Until the actual 7800X3D is tested, I don't think we can say for sure. There are tests where the 7950X3D has issues due to the heterogeneous CCD configuration, but if this gets fixed with driver updates or if you are willing to manually tweak it, I don't think the 7800X3D will be faster on average in the end.

Edit: I will say for pure gaming purposes, there won't be really any distinguishable difference between them. So if you don't need the extra cores, the 7800X3D would be the much more economical choice.
 

Hitman928

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Apr 15, 2012
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Ye but it takes a while for them to pump those reviews out, for understandable reasons of course, but still...
As of right now I think TPU's review is the way to go because it features more games, but HWUB and TPU both come to essentially the same conclusion regardless, for the flagship Intel vs AMD CPU. The only major difference was the gap between the 7950X3D and 7950X. HWUB shows a much smaller gap than TPU.

Yes, I was just talking in terms of overall averages which they pretty much agree on, though TPU's results show a virtual tie versus a small lead for the 7950x at HWUB between the stock 13900k and 7950x3d. For individual game results, obviously having more games is better, though I would say that HWUB's lineup seems to cover more newer games. I think HWUB's results would have shown a larger improvement if they had shared results with the "cache preferred" option being chosen as well as they seemed to have run into more issues than other outlets with the CCD configuration.
 

Heartbreaker

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Apr 3, 2006
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Until the actual 7800X3D is tested, I don't think we can say for sure. There are tests where the 7950X3D has issues due to the heterogeneous CCD configuration, but if this gets fixed with driver updates or if you are willing to manually tweak it, I don't think the 7800X3D will be faster on average in the end.

Edit: I will say for pure gaming purposes, there won't be really any distinguishable difference between them. So if you don't need the extra cores, the 7800X3D would be the much more economical choice.

Unless you are pairing with something like 7900XTX or 4090, most of the top end CPUs are a waste for gaming for any distinguishable difference.

Though I expect a big part of this end of the market is more about bragging rights, that distinguishable differences.
 

blckgrffn

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May 1, 2003
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www.teamjuchems.com
Unless you are pairing with something like 7900XTX or 4090, most of the top end CPUs are a waste for gaming for any distinguishable difference.

Though I expect a big part of this end of the market is more about bragging rights, that distinguishable differences.

I love the more consistent performance my 3D cache CPU provides.

You're right, pursuing 400fps at 1080p is kinda silly but I really like the lack of huge FPS dips on my end, and I'd think the new parts should provide that same consistency but with even more headroom and years of service.

Also the efficiency is really nice. A solid air cooler, and it's silent without contributing to turning your room of preference into a sauna so drastically. More headroom for that 4090 ;)

@Racan - heck yeah! One of these types of cpus+modern storage subsystem and it's soooo nice. There was a solid what, five years when upgrades moved the bar so little? You skipped DDR4 and are going to get a huuuuge uplift almost no matter what GPU you install :)
 

Mopetar

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Jan 31, 2011
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So there is a clear consensus that except for a few instances, a single-CCD X3D CPU, i.e. 7800X3D, will be much better for gaming than a dual-CCD CPU with only one CCD having v-Cache.

So why then does the 7900X3D and 7950X3D exist in the first place?

For cases where v-cache doesn't matter and you get more performance on faster cores. Or even a few people who want a 16-core CPU for work or other hobbies, but also want to game on it as well.

That and to sell a $700 CPU to anyone who can't wait a few months.
 

Hitman928

Diamond Member
Apr 15, 2012
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Ye but it takes a while for them to pump those reviews out, for understandable reasons of course, but still...
As of right now I think TPU's review is the way to go because it features more games, but HWUB and TPU both come to essentially the same conclusion regardless, for the flagship Intel vs AMD CPU. The only major difference was the gap between the 7950X3D and 7950X. HWUB shows a much smaller gap than TPU.

Actually, I went back and checked and TPU review has 12 games, same as HWUB. TPU does show 2 games with RT on and off. HWUB has, I would say, a more diverse and more updated suite of games.
 

nicalandia

Diamond Member
Jan 10, 2019
3,328
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Thread to focus on Zen4 3D cache CPUs.

New gaming king (as most expected), though the 2 CCD 7950x3d does seem to have issues with some games, more than I would expect of it getting stuck on the "wrong" CCD. I imagine it will get cleared up with subsequent updates but we'll see. Simulated 7800X3D showed no such issues and overall has the gaming lead (real product might be slightly slower though depending on in game clocks).


Computerbase also has the 7950x3d as the gaming champ. They (and TPU) also show that efficiency while gaming is extremely good.
View attachment 77236

View attachment 77238

View attachment 77240


Just to toot my own horn a little, it landed spot on with my prediction of fastest gaming CPU but not significantly so over a 13900k on average, but with much higher efficiency.

Additional reviews, will add more later.

Overclocking review..

 

Racan

Golden Member
Sep 22, 2012
1,080
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@Racan - heck yeah! One of these types of cpus+modern storage subsystem and it's soooo nice. There was a solid what, five years when upgrades moved the bar so little? You skipped DDR4 and are going to get a huuuuge uplift almost no matter what GPU you install :)
Yep, can't wait to see and I'll be transplanting my GTX 1080 for now. I'm sure the 4770 was bottlenecking it in many cases.
 

Timorous

Golden Member
Oct 27, 2008
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Unless you are pairing with something like 7900XTX or 4090, most of the top end CPUs are a waste for gaming for any distinguishable difference.

Though I expect a big part of this end of the market is more about bragging rights, that distinguishable differences.

Depends on the game. Late game Stellaris at 4/5 days per second is pretty nuts and that will be GPU agnostic.
 

inf64

Diamond Member
Mar 11, 2011
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From PCG hardware:
"
We couldn't believe our eyes when we entered the determined data into our Excel spreadsheet and were presented with the efficiency values visible above. AMD's Ryzen 9 7950X3D requires just 68 watts when playing. At this point, we would like to remind you that an Intel Core i9-13900KS already requires 76 watts in the single-core benchmark in Cinebench. A performance core of the Intel Core i9-13900KS already requires more energy than all 16 cores of the AMD Ryzen 9 7950X3D together, related to games.A performance core of the Intel Core i9-13900KS already requires more energy than all 16 cores of the AMD Ryzen 9 7950X3D combined.The latter is more economical in 3D games than a Core i5-12400F and on par with a Ryzen 7 7700 (with a TDP of 65 watts). Without a 3D cache, a Ryzen 7950X needs around 75 percent more energy, a mostly slower Intel Core i9-13900KS 140 percent more. In terms of fps per watt, a 7950X3D sets new records and even surpasses the two in-house efficiency wonders 5800X3D and 5600. Intel can't even keep up here, a 7950X3D delivers 142 percent more fps per watt than a 13900KS.

The new 16-core processor also shows its best side in applications. 16 Zen 4 cores with 3D cache require just around ten percent more watts compared to the Zen 3 predecessor with eight cores. The 7950X, which is five percent faster, requires a whopping 77 percent more energy, while Intel buys the approximately eight percent lead of the 13900KS with 133 percent higher power consumption. The TDP of 120 watts, which means 162 watts PPT for AMD, is not even fully utilized by the 16 core. In fact, if AMD had assigned the 7950X3D the TDP class of the 5800X3D at 105 watts, the performance would be almost identical. In the tuning special, we tested the 16-core processor with a TDP of 65 watts in eco mode, now we come to the efficiency index in comparison with all processors.

"
LOL :D