AMD Ryzen 7950X3D, 7900X3D, & 7800X3D Specs, Lower CPU Prices, & Laptop RDNA3
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Date: 2023-01-05
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Comments and reviews: 15
Varan
I feel like the non X versions of these CPUs are going to end up costing exactly the same as what the X versions are costing right now (or a little bit less) and all the other prices are going to go up. Likewise for Intel. More choice should be good for the consumer but why do I get the scary feeling we are all going to get the shaft? If the 7900 (non X) ends up costing the same as the 7700X at around 400 Euros (or hopefully a bit less) it will actually be a great buy and something I might consider if the AM5 boards and DDR5 drop further in prices. I actually really like the AM5 platform for it's specualted longevity, but I'm worried I might overspend on a part that might end up being not any better for my gaming needs.
Any advice would be welcome? For reference I've currently got an i9 9900k, with a 3090 and 32GB Ram, and a couple of Nvme2 SSDs (I think they are Gen3 would have to check) Will be keeping all the parts from my old PC, including case, Silent Loop 2, Powersupply, and Graphics card (3090RTX) so if anyone has an opinion on what a good AM5 CPU/MOBO/RAM would be for me that doesn't break the bank I would really appreciate it.
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I feel like the non X versions of these CPUs are going to end up costing exactly the same as what the X versions are costing right now (or a little bit less) and all the other prices are going to go up. Likewise for Intel. More choice should be good for the consumer but why do I get the scary feeling we are all going to get the shaft? If the 7900 (non X) ends up costing the same as the 7700X at around 400 Euros (or hopefully a bit less) it will actually be a great buy and something I might consider if the AM5 boards and DDR5 drop further in prices. I actually really like the AM5 platform for it's specualted longevity, but I'm worried I might overspend on a part that might end up being not any better for my gaming needs.
Any advice would be welcome? For reference I've currently got an i9 9900k, with a 3090 and 32GB Ram, and a couple of Nvme2 SSDs (I think they are Gen3 would have to check) Will be keeping all the parts from my old PC, including case, Silent Loop 2, Powersupply, and Graphics card (3090RTX) so if anyone has an opinion on what a good AM5 CPU/MOBO/RAM would be for me that doesn't break the bank I would really appreciate it.
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Nova
X3D will be more expensive, obviously, but I'm hopeful to see the pure performance boost. 5800X3D being insanely good is a great thing to tell us how powerful it is, without overclocking. If the 7800X3D ends up being about 550 ish I might buy it depending on how good it is bang for buck compared to the i7 13700K. Granted that is more expensive but I like going in between high end and middle end, more like low high end, high mid end. Me getting a new PC case for a 360mm will be good to cool it properly and I'll have to find out the single best AIO for AM5 cpu's. Recommendations appreciated. Besides that, if AMD fixes their issues in the 7900 XTX I want to buy that as they advertised their GPU's to be better with their CPU's. I do NOT want to buy an NVIDIA GPU right now. 4070 ti bad, 4080 ti bad, 4090 ti melting cables (and expensive) so I hope to get a 7900 XTX down the line. I have a 6800 XT though so maybe I'll just wait until the 8000 series. 6800 XT is still a very good GPU, especially for me getting it at 630 NEW.
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X3D will be more expensive, obviously, but I'm hopeful to see the pure performance boost. 5800X3D being insanely good is a great thing to tell us how powerful it is, without overclocking. If the 7800X3D ends up being about 550 ish I might buy it depending on how good it is bang for buck compared to the i7 13700K. Granted that is more expensive but I like going in between high end and middle end, more like low high end, high mid end. Me getting a new PC case for a 360mm will be good to cool it properly and I'll have to find out the single best AIO for AM5 cpu's. Recommendations appreciated. Besides that, if AMD fixes their issues in the 7900 XTX I want to buy that as they advertised their GPU's to be better with their CPU's. I do NOT want to buy an NVIDIA GPU right now. 4070 ti bad, 4080 ti bad, 4090 ti melting cables (and expensive) so I hope to get a 7900 XTX down the line. I have a 6800 XT though so maybe I'll just wait until the 8000 series. 6800 XT is still a very good GPU, especially for me getting it at 630 NEW.
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BL4D3RUNN3R
It looked like the 7950X3D has only one 3D cache stack on top of one of the CCDs... That could explain why the 2 CCD CPUs boost higher. The higher boosting cores are on the CCD that doesn't have the stacked cache on top. Since the 7800X3D has only one CCD, that could explain the difference in boost clocks.
Just checked the specs of the 7950X... it already has a total of 80MB cache (L2 and L3 combined) and the 7950X3D will have 144MB cache (L2, L3 and L3 3DVcache combined), so that means the 7950X3D will get 64MB additional L3 cache.
The 7700X has 40MB cache (L2 and L3 combined) and the the 7800X3D will have 104MB cache (L2, L3 and L3 3DVcache combined), that also means it will get 64MB 3dVcache. So my theory is correct.
On the 7900X3D and the 7950X3D only one CCD will have the stacked cache and the other one won't. The one without it, will boost as high as the non X3D Versions of the CPUs.
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It looked like the 7950X3D has only one 3D cache stack on top of one of the CCDs... That could explain why the 2 CCD CPUs boost higher. The higher boosting cores are on the CCD that doesn't have the stacked cache on top. Since the 7800X3D has only one CCD, that could explain the difference in boost clocks.
Just checked the specs of the 7950X... it already has a total of 80MB cache (L2 and L3 combined) and the 7950X3D will have 144MB cache (L2, L3 and L3 3DVcache combined), so that means the 7950X3D will get 64MB additional L3 cache.
The 7700X has 40MB cache (L2 and L3 combined) and the the 7800X3D will have 104MB cache (L2, L3 and L3 3DVcache combined), that also means it will get 64MB 3dVcache. So my theory is correct.
On the 7900X3D and the 7950X3D only one CCD will have the stacked cache and the other one won't. The one without it, will boost as high as the non X3D Versions of the CPUs.
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kidwajagstang
I just hope that SOMEONE, whether it s Clevo or possibly Acer, but I just hope SOMEONE offers/creates a laptop with a socketed desktop Am5 cpu. These 65 watt tdp CPU s make them ideal for this kind of system.
Currently Clevo is the only company that offers a socket AM4 laptop. I WISH my Acer Predator 500 with AM4 would be given a bios update that would update the AGESA to improve DDR4 timings and offer upgrade capability to a Zen 2 or zen 3 cpu since I m stuck with a 2700 bc Acer refuses to make an upgrade possible despite there being no reason other than they don t want to offer it.
If ANYONE out there is able to create a BIOS that would update my laptop s AGESA to at least get a Ryzen 3000 cpu, PLEASE message me!
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I just hope that SOMEONE, whether it s Clevo or possibly Acer, but I just hope SOMEONE offers/creates a laptop with a socketed desktop Am5 cpu. These 65 watt tdp CPU s make them ideal for this kind of system.
Currently Clevo is the only company that offers a socket AM4 laptop. I WISH my Acer Predator 500 with AM4 would be given a bios update that would update the AGESA to improve DDR4 timings and offer upgrade capability to a Zen 2 or zen 3 cpu since I m stuck with a 2700 bc Acer refuses to make an upgrade possible despite there being no reason other than they don t want to offer it.
If ANYONE out there is able to create a BIOS that would update my laptop s AGESA to at least get a Ryzen 3000 cpu, PLEASE message me!
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Zarcondeegrissom
if only GPUs were not trying to be planet warmers that cost as much as possible. would make the AM5 platform a tad more worth considering, instead of repulsive to consider system costs. Then there is DDR5, eh, I'm just not feeling it. three generations of price-gouged space heaters have me feeling uninterested in computers these days and I just lack the enthusiasm to dig through nitty-gritty specs to pick out compatible parts for a rendering rig and there has been nothing for the past four or five generations to complete an HTPC/DAW build (everything around the CPUs burns too many watts to be fanless). like with unreal engine 5, the problem is the 'cost' of the GPU for it.
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if only GPUs were not trying to be planet warmers that cost as much as possible. would make the AM5 platform a tad more worth considering, instead of repulsive to consider system costs. Then there is DDR5, eh, I'm just not feeling it. three generations of price-gouged space heaters have me feeling uninterested in computers these days and I just lack the enthusiasm to dig through nitty-gritty specs to pick out compatible parts for a rendering rig and there has been nothing for the past four or five generations to complete an HTPC/DAW build (everything around the CPUs burns too many watts to be fanless). like with unreal engine 5, the problem is the 'cost' of the GPU for it.
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Organic
4:35 notice that they likely put 2 stacks of 32MB on the 7800X3D like with the 5800X3D. But on 7900 and 7950 it seems like they put only one stack on each die. That may cause the frequency difference and perfectly segments their hardware to make the 7900X3D and 7950X3D look more attractive relative to the 7800X3D, while not costing much more to manufacture (no double stack) but
I.e. this seems to be a product segmentation move.
I d be interested to see how the lower per-core cache amount on 7900 and 7950X3D shows up in benchmarks.
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4:35 notice that they likely put 2 stacks of 32MB on the 7800X3D like with the 5800X3D. But on 7900 and 7950 it seems like they put only one stack on each die. That may cause the frequency difference and perfectly segments their hardware to make the 7900X3D and 7950X3D look more attractive relative to the 7800X3D, while not costing much more to manufacture (no double stack) but
I.e. this seems to be a product segmentation move.
I d be interested to see how the lower per-core cache amount on 7900 and 7950X3D shows up in benchmarks.
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FirstDragonSlayer
Honestly, the AI bit could be helpful, especially on lower end parts, because software scheduling is always gonna be problematic - there's an article on ScienceDirect that talks about this - hardware knows best what's going on with itself, so it can schedule tasks better than software.
This genuinely could be a huge step. Maybe not on par with dedicated graphics, but something closer to introduction of multi-threading. We have lots of power in our CPUs, but we use it improperly and inefficiently.
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Honestly, the AI bit could be helpful, especially on lower end parts, because software scheduling is always gonna be problematic - there's an article on ScienceDirect that talks about this - hardware knows best what's going on with itself, so it can schedule tasks better than software.
This genuinely could be a huge step. Maybe not on par with dedicated graphics, but something closer to introduction of multi-threading. We have lots of power in our CPUs, but we use it improperly and inefficiently.
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kathrynck
- The 7900X & 7950X have some de-clock on the X3D versions too. But really with these chips it'll come down to thermals, and be more about how much time can be spent in boost.
- the 5800X vs. 5800X3D went from 32mb L3 to 96mb L3 (or 3x the cache size)
- the 7900x vs. 7900X3D went from 64 to 140mb L3 (or 2.1x the cache size) So it may not scale as much as the previous X3D did. depends on how cache hungry the cpu is. But I would expect less uplift (though certainly still some uplift).
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- The 7900X & 7950X have some de-clock on the X3D versions too. But really with these chips it'll come down to thermals, and be more about how much time can be spent in boost.
- the 5800X vs. 5800X3D went from 32mb L3 to 96mb L3 (or 3x the cache size)
- the 7900x vs. 7900X3D went from 64 to 140mb L3 (or 2.1x the cache size) So it may not scale as much as the previous X3D did. depends on how cache hungry the cpu is. But I would expect less uplift (though certainly still some uplift).
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Unattributed
I'm really curious to see real-world reviews of the X3D and non-X variants of these CPUs. I'm really happy to hear they are dialing back the past consumption. I found it very annoying to consider buying a to end product only to find the major advantage to AMD's CPUs had been thrown out. I personally find the balance of IPC to post consumption to be the major strength of AMD's products, and was concerned that I was going to have to start reevaluating my position on that.
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I'm really curious to see real-world reviews of the X3D and non-X variants of these CPUs. I'm really happy to hear they are dialing back the past consumption. I found it very annoying to consider buying a to end product only to find the major advantage to AMD's CPUs had been thrown out. I personally find the balance of IPC to post consumption to be the major strength of AMD's products, and was concerned that I was going to have to start reevaluating my position on that.
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adilazimdegilx
I guarantee that 7900x3d and 7950x3d are also lower boost clock on their vCache chiplet like 7800x3d. But because they have another chiplet that can boost to standard speeds in presantation they just put those number to avoid what happened with 5800x3d when it was first launched as ppl tattled about lower speeds ignoring its actual gaming performance.
Fingers crossed dissimilar CCD design due to vCache wont cause scheduling problems.
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I guarantee that 7900x3d and 7950x3d are also lower boost clock on their vCache chiplet like 7800x3d. But because they have another chiplet that can boost to standard speeds in presantation they just put those number to avoid what happened with 5800x3d when it was first launched as ppl tattled about lower speeds ignoring its actual gaming performance.
Fingers crossed dissimilar CCD design due to vCache wont cause scheduling problems.
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Mistyshade
If AMD did a great job with their CPU, it was really bad for Laptop GPU :(
The Powerconsumption to gain FPS show something really bad against RTX 4000 series.
I really hope that at least they will have real competitive price instead because with entry level at 2000 for Nvidia, AMD should at least begin at 1000 to give a real shot on Nvidia abusive Pricing. (And hope by the same way to sell some laptop with their GPU)
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If AMD did a great job with their CPU, it was really bad for Laptop GPU :(
The Powerconsumption to gain FPS show something really bad against RTX 4000 series.
I really hope that at least they will have real competitive price instead because with entry level at 2000 for Nvidia, AMD should at least begin at 1000 to give a real shot on Nvidia abusive Pricing. (And hope by the same way to sell some laptop with their GPU)
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Xilent
Are or will 12+ Cores have a impact on performance or will it be ok gaming in 8core in the not too distant future? If not then why buy one for gaming? I know someone will say compare 6 to 8. I can t tell the difference or know what the difference is. I have 8 on zen 2. Considering 12 core when I go am5. I mean maybe games will use 32gb of RAM but 16 seems fine kinda thing?
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Are or will 12+ Cores have a impact on performance or will it be ok gaming in 8core in the not too distant future? If not then why buy one for gaming? I know someone will say compare 6 to 8. I can t tell the difference or know what the difference is. I have 8 on zen 2. Considering 12 core when I go am5. I mean maybe games will use 32gb of RAM but 16 seems fine kinda thing?
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ukasz
7800x3d is so weird... it's the only one with lower boost clock, unknown base clock, higher TDP than non 3d counterpart and the same as 16 cores part. It looks to me like they don't really want to make them - putting the best chiplets in 7950x3d, some that has to be partially disabled in 7900x3d and whatever trash is left goes to 7800x3d.
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7800x3d is so weird... it's the only one with lower boost clock, unknown base clock, higher TDP than non 3d counterpart and the same as 16 cores part. It looks to me like they don't really want to make them - putting the best chiplets in 7950x3d, some that has to be partially disabled in 7900x3d and whatever trash is left goes to 7800x3d.
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Mateusz
I'm pretty convinced 7900 and 7950 didn't get advertised frequency cut because it will be one die with no extra cache (with normal boosting) and the second die with extra cache which will have boosts lowered as 7800 part. So AMD can advertise max boost and 3d-cache at the same time. If it will be like that it's pretty shady tactic.
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I'm pretty convinced 7900 and 7950 didn't get advertised frequency cut because it will be one die with no extra cache (with normal boosting) and the second die with extra cache which will have boosts lowered as 7800 part. So AMD can advertise max boost and 3d-cache at the same time. If it will be like that it's pretty shady tactic.
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readhead12
I read that the new x3d cpus got an interesting design. They use 2 CCDS, one with 3d Cache and one without.
So on the 16 core variant, you actually got 8 cores with 3d cache and 8 cores without who can then clock higher for workloads that need high clock count. Games then should run on the other ccd with x3d cache.
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I read that the new x3d cpus got an interesting design. They use 2 CCDS, one with 3d Cache and one without.
So on the 16 core variant, you actually got 8 cores with 3d cache and 8 cores without who can then clock higher for workloads that need high clock count. Games then should run on the other ccd with x3d cache.
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