Monday, October 28th 2024

AMD Ryzen 7 9800X3D Comes with 120W TDP, 5.20 GHz Boost, All Specs Leaked

Specifications of the upcoming AMD Ryzen 7 9800X3D processor were leaked to the web by a Geizhals listing. The chip comes with a processor base frequency of 4.70 GHz, and a maximum boost frequency of 5.20 GHz. The base frequency of 4.70 GHz is a significant increase from the 4.20 GHz of the current 7800X3D, while the maximum boost frequency has moved up a couple of notches from the 5.05 GHz of the 7800X3D. The TDP of the processor is set at 120 W, same as the 7800X3D, and higher than the 105 W revised-spec cTDP of the non-X3D Ryzen 7 9700X.

The specs sheet also confirms that the 3D V-cache size is unchanged generationally. The stacked 3D V-cache die adds 64 MB to the on-die 32 MB L3 cache, which is exposed to software as a 96 MB contiguously addressable L3 cache. The per-core L2 cache size remains 1 MB per core. The biggest contributor to generational gaming performance increases will rest on the increase in frequencies, the new "Zen 5" microarchitecture and any IPC improvements on offer, plus L3 cache performance improvements AMD introduced with "Zen 5." We recently reported a spectacular theory that AMD has designed the 9800X3D such that the stacked 3D V-cache is positioned below the 8-core CPU complex die chiplet, and not above it, which should significantly improve thermals, and clock speeds.
Sources: Geizhals, VideoCardz
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120 Comments on AMD Ryzen 7 9800X3D Comes with 120W TDP, 5.20 GHz Boost, All Specs Leaked

#101
Raiden85
I stopped tweaking CPUs a long time ago, the last CPU I ran overclocked was the Intel Q6600, so a very long time ago. CPU's these days have sod all overclocking headroom as they tend to run not that far from their max potential these days, same for the GPUs, so for me stock speeds are fine. Seems these days it's gone from overlocking to undervolting instead, which I've never bothered to get into. If the system is rock solid, fast and stable then that's good enough for me :)
Posted on Reply
#102
freeagent
Raiden85CPU's these days have sod all overclocking headroom as they tend to run not that far from their max potential these days, same for the GPUs, so for me stock speeds are fine. Seems these days it's gone from overlocking to undervolting instead,
That isn't entirely true, there is performance to be had if you know what you are doing;.

I am not here to judge, I am here to play with hardware with other like minded individuals :)
Posted on Reply
#103
AusWolf
freeagentIf you like to run your CPU at stock, all the power to you.
I do, but I get where you're coming from.
Posted on Reply
#104
LittleBro
Raiden85I stopped tweaking CPUs a long time ago, the last CPU I ran overclocked was the Intel Q6600, so a very long time ago. CPU's these days have sod all overclocking headroom as they tend to run not that far from their max potential these days, same for the GPUs, so for me stock speeds are fine. Seems these days it's gone from overlocking to undervolting instead, which I've never bothered to get into. If the system is rock solid, fast and stable then that's good enough for me :)
Well, CPU/GPU manufacturers found out that doing OC on previous generation product along with applying minor tweaks can easily be released as next generation product, no significant changes in architecture required. But we saw with Raptor Lake how that might strike back if you push too hard. It's as you wrote, now it's mostly about optimizing efficiency - undervolting. To me it seems it's not less fun and is also safer to play with. Provided there is a sufficient cooling measure in place, you can't damage CPU/GPU when lowering voltage or ramping up the clocks - the chip might become unstable, cause a system crash or freeze or smth similar. Undervolting will not only lower power consumption, but also temps and lower temps equals to less noise.

Personally, I'm not feeling comfortable when I know that with proper tuning and not so much effort my system might work at much better conditions, especially noise-wise. There are people who tune their chips to reach the efficiency sweet spot, which basically requires significant lowering of clocks. I am happy to go with stock clocks at as low voltage as possible, this usually lowers temps and noise significantly.
Posted on Reply
#105
AusWolf
LittleBroWell, CPU/GPU manufacturers found out that doing OC on previous generation product along with applying minor tweaks can easily be released as next generation product, no significant changes in architecture required.
Or maybe they've just run out of ideas of how to make significant improvements without raising power and/or cooling needs significantly.
LittleBroBut we saw with Raptor Lake how that might strike back if you push too hard. It's as you wrote, now it's mostly about optimizing efficiency - undervolting. To me it seems it's not less fun and is also safer to play with. Provided there is a sufficient cooling measure in place, you can't damage CPU/GPU when lowering voltage or ramping up the clocks - the chip might become unstable, cause a system crash or freeze or smth similar. Undervolting will not only lower power consumption, but also temps and lower temps equals to less noise.

Personally, I'm not feeling comfortable when I know that with proper tuning and not so much effort my system might work at much better conditions, especially noise-wise. There are people who tune their chips to reach the efficiency sweet spot, which basically requires significant lowering of clocks. I am happy to go with stock clocks at as low voltage as possible, this usually lowers temps and noise significantly.
Or you could just buy a one tier lower CPU and run it at stock.
Posted on Reply
#106
LittleBro
AusWolfOr maybe they've just run out of ideas of how to make significant improvements without raising power and/or cooling needs significantly.
To me it seems like they are trying to save money in wrong places, like in R&D. Without proper R&D, there won't be so many new ideas and new inventions.
They should spend less on marketing and other non-crucial company stuff. I really can't understand Intel's decision to lay off people also from R&D. This will backfire badly one day.
AusWolfOr you could just buy a one tier lower CPU and run it at stock.
No way! I want my life to be complicated.
Posted on Reply
#107
AusWolf
LittleBroTo me it seems like they are trying to save money in wrong places, like in R&D. Without proper R&D, there won't be so many new ideas and new inventions.
They should spend less on marketing and other non-crucial company stuff. I really can't understand Intel's decision to lay off people also from R&D. This will backfire badly one day.
Without being able to peek into the daily grind at these companies, I guess we'll never know.
LittleBroNo way! I want my life to be complicated.
Ehm... ok. :roll:
Posted on Reply
#108
chrcoluk
I would say post alder lake on intel and 7800x3d class performance on AMD is still useful without the best GPUs and without even wanting high frame rates, but this depends on the games you play, lightning returns can only hit stable 30FPS with that kind of CPU grunt. It will still dip to 30s at 60fps target in some areas, probably needs another decade of CPU development before it can sustain 60 everywhere. Or hopefully a remake of the game thats better optimised.

What I have noticed is newer games seem better optimised for CPU's (more threads), but older games are much better for GPU (less VRAM and much lower GPU loads for same visual quality), however rely so much more heavily on fast single threaded performance on CPU.
Posted on Reply
#109
bitsandboots
X3D makes significant difference in some edge case games, for me in particular VRChat, so it may be worth it even if it's boring for all other purposes.
Posted on Reply
#110
WarriorK9999
freeagentI like tuning CPUs.

And tuning X3D is boring AF.

Now it wont be, hopefully.

If you like to run your CPU at stock, all the power to you.
Thats why I like buying the Phenom series, Sandybridge and even FX and mess with it. When I got the 5700g and it was pretty boring so I just set at default and I actually bought the FX 8350 since I already have a motherboard for it. lol
Posted on Reply
#111
freeagent
WarriorK9999Thats why I like buying the Phenom series, Sandybridge and even FX and mess with it. When I got the 5700g and it was pretty boring so I just set at default and I actually bought the FX 8350 since I already have a motherboard for it. lol
1366 was the last great overclocking platform :respect:
Posted on Reply
#112
oxrufiioxo
freeagent1366 was the last great overclocking platform :respect:
Haswell E and Sandyrbidge were decent. I think i got like 1000mhz out of my 5820k lol imagine that now....
Posted on Reply
#114
izy
Seems that you can OC it for at least 200Mhz , thats nice. (source: Gamers Nexus last video)
Posted on Reply
#115
mouacyk
izySeems that you can OC it for at least 200Mhz , thats nice. (source: Gamers Nexus last video)
What really will count is if the 9800X3D will allow for predictable boost clocks, with well-understood offsets. Ideally, it should unlock TDP and voltage, so the only limiter is going to be possibly a clock offset for AVX512. This will make for locking max clocks possible, unlike how it has been quite unpredictable.
Posted on Reply
#116
windwhirl
mouacykIdeally, it should unlock TDP and voltage
Wasn't the voltage range limited after the motherboard shenanigans?
mouacykclock offset for AVX512
Unsure if this exists to begin with, as AMD's implementation didn't seem to hit clocks as much as Intel's did, at least if I recall correctly.
mouacykfor predictable boost clocks
Also, about this, isn't it all subjected to silicon lottery? Specially since AMD just programs the things to go as fast as safely possible
Posted on Reply
#117
Shakallia
SL2I highly doubt the current price of the 7800X3D is a sign that the 9800X3D is even more expensive. (Yeah, launch price)

The 7800X3D isn't just more expensive now, it's also out of stock.

If anyone blames scalpers alone, let's not forget that the less popular 7900X3D has gone up in price as well, and is harder to find. All time low was an insane $280, now it's 600.
Good point, but let's not forget concurrence has sth to do with prices too, and in gaming, 9800x3d will probably be the undisputed champ, and when you see the price of arrow lake cpu's and the 7800x3d, there is no reason AMD is gonna price it cheap. Starting price is now confirmed to be 480 dollars, you can be sure if there is a high demand and stocks go fast, the price may rise to a lot more after a time.
Posted on Reply
#118
mouacyk
windwhirlWasn't the voltage range limited after the motherboard shenanigans?

Unsure if this exists to begin with, as AMD's implementation didn't seem to hit clocks as much as Intel's did, at least if I recall correctly.

Also, about this, isn't it all subjected to silicon lottery? Specially since AMD just programs the things to go as fast as safely possible
There are 2 locked voltages:
VSOC - locked to 1.3v in later BIOS versions only for x3D CPU's (yes, due to CPU's dying), likely due to fragility of the Cache die sitting on top of a 90C CCD die. With Cache die moved underneath the CCD die now, hopefully they can unlock it again.

CPU voltage - locked to 1.2v on all x3D CCD's. Again, with the die repositioning, there's opportunity to unlock this.

Apparently, AMD's implementation of AVX512 is more efficient so not penalized as much in clocks and power, but it must still be consuming more power at the same clocks than other instructions. Honestly, PBO was just AMD's voodoo dance around the TDP and thermal limits. With more things unlocked for overclocking, the voodoo should not be necessary (warranty be damned.)
Posted on Reply
#119
AusWolf
mouacykWhat really will count is if the 9800X3D will allow for predictable boost clocks, with well-understood offsets. Ideally, it should unlock TDP and voltage, so the only limiter is going to be possibly a clock offset for AVX512. This will make for locking max clocks possible, unlike how it has been quite unpredictable.
You're already far away from the TDP limit with the 7800X3D, so with adequate cooling, your only limit is the clock offset. That's why your max clock is locked at 5 GHz single-core and 4.8 all-core.
mouacykThere are 2 locked voltages:
VSOC - locked to 1.3v in later BIOS versions only for x3D CPU's (yes, due to CPU's dying), likely due to fragility of the Cache die sitting on top of a 90C CCD die. With Cache die moved underneath the CCD die now, hopefully they can unlock it again.
I don't think VSOC has any effect on the compute die, only the IO.
mouacykCPU voltage - locked to 1.2v on all x3D CCD's. Again, with the die repositioning, there's opportunity to unlock this.
The 7800X3D runs at around 1 V (core) max.
mouacykApparently, AMD's implementation of AVX512 is more efficient so not penalized as much in clocks and power, but it must still be consuming more power at the same clocks than other instructions. Honestly, PBO was just AMD's voodoo dance around the TDP and thermal limits. With more things unlocked for overclocking, the voodoo should not be necessary (warranty be damned.)
That much is true. That's why PBO does absolutely nothing on the 7800X3D, because it is already way below TDP limit from the factory.
Posted on Reply
#120
Han44
Raiden85I stopped tweaking CPUs a long time ago, the last CPU I ran overclocked was the Intel Q6600, so a very long time ago. CPU's these days have sod all overclocking headroom as they tend to run not that far from their max potential these days, same for the GPUs, so for me stock speeds are fine. Seems these days it's gone from overlocking to undervolting instead, which I've never bothered to get into. If the system is rock solid, fast and stable then that's good enough for me :)
Nowadays, overclocking makes no sense, but UV is common due to temperatures
AusWolfIf that's the case, that'll be interesting. Let's see if rumours about the reversed cache/CCD are true, and how much they improve on thermals.

Edit: if it was really such a significant improvement, then AMD would have gone with a higher max boost clock, methinks.
These higher clock speeds will probably be left at 9900x3d and 9950 x3d
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