Corsair H170i Elite Capellix XT review
Forspoken: PC performance graphics benchmarks
ASRock Z790 Taichi review
The Callisto Protocol: PC graphics benchmarks
G.Skill TridentZ 5 RGB 6800 MHz CL34 DDR5 review
Be Quiet! Dark Power 13 - 1000W PSU Review
Palit GeForce RTX 4080 GamingPRO OC review
Core i9 13900K DDR5 7200 MHz (+memory scaling) review
Seasonic Prime Titanium TX-1300 (1300W PSU) review
F1 2022: PC graphics performance benchmark review
According to AMD product pages, the upcoming 7950X3D and 7800X3D are Unlocked for Overclocking.
The AMD Ryzen 9 7950X3D and Ryzen 7 7800X3D Zen 4 processors would be unlocked for overclocking, according to recent a mention on the AMD product pages.
Contrary to what has been shared before, this means that the CPUs will feature an unlocked base-clock multiplier, making overclocking easier than on previous-generation Ryzen 7 5800X3D processors with locked base-clock multipliers. The TDP rating of the 16-core/32-thread 7950X3D and the 8-core/16-thread 7800X3D will be 120 W, which is much lower than the 7950X's 170 W rating. Furthermore, the TJmax value is lower, at 89°C, compared to 95°C for the 7950X and 7700X.
These chips will include stacked 3D vertical cache technology (3DV cache). The 7800X3D will include 64 MB of 3DV cache stacked on top of the 32 MB of on-die L3 cache, bringing the total cache (L2+L3) to 104 MB. The 3DV cache memory on one of the two "Zen 4" CCDs will be available exclusively on the 7950X3D and the 12-core/24-thread 7900X3D. The first CCD will contain 96 MB of L3 cache (including the 3DV cache), while the second will be a normal "Zen 4" CCD with only 32 MB of L3 cache on-die. This means that the L3 cache will be 128 MB for the 7900X3D, and the total cache will be 140 MB for the 7950X3D. AMD has stated that their first CPU with 3D V-Cache, the Ryzen 7 5800X3D, is not overclockable due to the limited voltage that can be safely employed in tandem with the stacked L3 cache.
| AMD Ryzen 7000 Zen4 | Architecture | Cores/Threads | Base /Turbo | L2 + L3 | TDP | iGPU | Price |
|---|---|---|---|---|---|---|---|
| Ryzen 9 7950X3D | Zen 4 | 16/32 | 4.2/5.7 GHz | 16+64+64 MB | 120 W | yes | |
| Ryzen 9 7950X | Zen 4 | 16/32 | 4.5/5.7 GHz | 16+64 MB | 170 W | yes | 849 Euro (699 USD) |
| Ryzen 9 7900X3D | Zen 4 | 12/24 | 4.4/5.6 GHz | 12+64+64 MB | 120 W | yes | |
| Ryzen 9 7900X | Zen 4 | 12/24 | 4.7/5.6 GHz | 12+64 MB | 170 W | yes | 669 Euro (549 USD) |
| Ryzen 7 7800X3D | Zen 4 | 8/16 | 4.x/5.0 GHz | 8+32+64 MB | 120 W | yes | |
| Ryzen 7 5800X3D | Zen 3 | 8/16 | 3.4/4.5 GHz | 4+32+64 MB | 105 W | yes | 489 Euro (449 USD) |
| Ryzen 7 7700X | Zen 4 | 8/16 | 4.5/5.4 GHz | 8+32 MB | 105 W | yes | 479 Euro (399 USD) |
| Ryzen 5 7600X | Zen 4 | 6/12 | 4.7/5.3 GHz | 6+32 MB | 105 W | yes | 359 Euro (299 USD) |
All three processors get a 120W-rated TDP bringing back these processors towards better manageable temperatures. All factors combined can make these processors the most desirable of the year for the gaming end-consumer. The caches are interesting, the Dual-CCD 7900X3D and 7950X3D were demonstrated, with respective total caches of 140 MB and 144 MB. And that means one CCD has a 32 MB L3 cache on-die, and the other is a standard planar CCD.
Currently AMD has altered their product pages to remove this info entirely, implying that the specifications for these chips have not yet been completed.
GTA 6 will arrive in 2024 (according to a Microsoft document) - 11/28/2022 10:13 AM
After numerous leaks and much discussion, a possible release date for GTA 6 has emerged. According to Microsoft, the Rockstar Games-developed game will be released in 2024....
Intel Core i9-13900K is 11% faster than the Ryzen 9 7950X according to leaked photos - 10/20/2022 08:52 AM
During a closed event to introduce the 13th generation of Intel Core CPUs, the firm showed slides demonstrating that the Core i9-13900K outperforms its direct opponent, the Ryzen 9 7950X, by up to 11%...
SSDs Are More Reliable Than Hard Drives, According to Data from Backblaze - 09/14/2022 08:40 AM
Backblaze's new SSD report for Q2 2022 shows the lifespan of its SSD boot disks powering its backup servers since 2018. Backblaze's latest upgrade proves SSDs' reliability over hard disks....
According to rumors, RTX 3060 8GB and RTX 3060 Ti with GDDR6X towards the end of October. - 09/12/2022 08:16 AM
At the end of October, Nvidia may introduce two new GeForce RTX 30 video cards. The GeForce RTX 3060 and RTX 3060 Ti will see additional variations....
According to Asus and Gigabyte, motherboard sales will fall by 25% this year. - 06/29/2022 09:20 AM
Asus and Gigabyte, which together account for 70% of the motherboard market, have warned that they expect sales to drop by around 25% compared to last year. ...
XenthorX
Senior Member
Posts: 4523
Joined: 2014-06-17
Senior Member
Posts: 4523
Joined: 2014-06-17
#6096023 Posted on: 01/24/2023 01:25 PM
Looking forward to reviews of 3D cache versions.
I used to be on the fence, but I don't think those new product will deliver the "twice as fast as 5900X and affordable" that I am looking for.
Guess I will have to look for next generation, with the prices of everthing I am in no hurry.
Looking forward to reviews of 3D cache versions.
I used to be on the fence, but I don't think those new product will deliver the "twice as fast as 5900X and affordable" that I am looking for.
Guess I will have to look for next generation, with the prices of everthing I am in no hurry.
tunejunky
Senior Member
Posts: 3047
Joined: 2017-08-18
Senior Member
Posts: 3047
Joined: 2017-08-18
#6096071 Posted on: 01/24/2023 03:52 PM
not so fast mon frere
the problem w/ thermals on 5800X3D is one of voltage being shared by the cache and cpu.
AMD discovered in the Genoa series that providing an independant regulator for the cache virtually eliminated the heat issue as the cache needs nowhere near the same voltage.
this is why they have unlocked the clocks on 7000 series X3D
That is why having AMD unlocking the 5800X3D multiplier would be the ideal solution.
not so fast mon frere
the problem w/ thermals on 5800X3D is one of voltage being shared by the cache and cpu.
AMD discovered in the Genoa series that providing an independant regulator for the cache virtually eliminated the heat issue as the cache needs nowhere near the same voltage.
this is why they have unlocked the clocks on 7000 series X3D
geogan
Senior Member
Posts: 1126
Joined: 2010-01-04
Senior Member
Posts: 1126
Joined: 2010-01-04
#6096073 Posted on: 01/24/2023 03:58 PM
"And that means one CCD has a 32 MB L3 cache on-die, and the other is a standard planar CCD."
Hold on... 3D cache on only one CCD of the 7950X3D?
So that means if your process ends up running on the other normal CCD then it would end up much slower?
Also does this leave the door open for AMD to then release a next version of 7950X3D with a 3D cache on both CCDs?
Was this done intentionally to make people buy the same thing again from them - planned obsolescence?
"And that means one CCD has a 32 MB L3 cache on-die, and the other is a standard planar CCD."
Hold on... 3D cache on only one CCD of the 7950X3D?
So that means if your process ends up running on the other normal CCD then it would end up much slower?
Also does this leave the door open for AMD to then release a next version of 7950X3D with a 3D cache on both CCDs?
Was this done intentionally to make people buy the same thing again from them - planned obsolescence?
GarrettL
Senior Member
Posts: 322
Joined: 2019-09-09
Senior Member
Posts: 322
Joined: 2019-09-09
#6096076 Posted on: 01/24/2023 04:11 PM
"And that means one CCD has a 32 MB L3 cache on-die, and the other is a standard planar CCD."
Hold on... 3D cache on only one CCD of the 7950X3D?
So that means if your process ends up running on the other normal CCD then it would end up much slower?
Also does this leave the door open for AMD to then release a next version of 7950X3D with a 3D cache on both CCDs?
Was this done intentionally to make people buy the same thing again from them - planned obsolescence?
I'm in now way an expert on cpu architecture.
No, it was the drawback of the 5800x3d design. For 7000's the large cache is is just on 1 CCD and the other CCD with the standard cache. This will allow acceptable thermals and overclocking for higher single core performance on one CCD. But you also have a CCD with the large cache for multi-threaded games.
In one article I read, AMD is now working with Microsoft with this new design and proper core loading. Right now it's not optimized at all. It will be intersting to see how the intial release and gaming results compare to the 5800x3d design.
"And that means one CCD has a 32 MB L3 cache on-die, and the other is a standard planar CCD."
Hold on... 3D cache on only one CCD of the 7950X3D?
So that means if your process ends up running on the other normal CCD then it would end up much slower?
Also does this leave the door open for AMD to then release a next version of 7950X3D with a 3D cache on both CCDs?
Was this done intentionally to make people buy the same thing again from them - planned obsolescence?
I'm in now way an expert on cpu architecture.
No, it was the drawback of the 5800x3d design. For 7000's the large cache is is just on 1 CCD and the other CCD with the standard cache. This will allow acceptable thermals and overclocking for higher single core performance on one CCD. But you also have a CCD with the large cache for multi-threaded games.
In one article I read, AMD is now working with Microsoft with this new design and proper core loading. Right now it's not optimized at all. It will be intersting to see how the intial release and gaming results compare to the 5800x3d design.
Click here to post a comment for this news story on the message forum.
Senior Member
Posts: 456
Joined: 2014-12-09
Maybe it just one CCX that is unlocked