7800X3D, 7900X3D, 7950X3D..

[EightyDuce]

7900 and 7950X3D - Feb 28.

7800X3D - April 6

 

[LucShep]

56 minutes ago, EightyDuce said:

7900 and 7950X3D - Feb 28.

7800X3D - April 6

 

 

If it's a 7000X3D chip you want exclusively for gaming, then get the 7800X3D and avoid all the others.
On the 7900X3D and 7950X3D the 3DV cache (what you want these for) is available only on one of the CCDs.

[SkateZilla]

Yup,
7800X3D is one CCX w/ 3D VCACHE
7900X3D is two CCX w/ 3D VCACHE on the Full 8 Core, and then none on the 2nd CCX w/ 4 Cores Disabled.
7950X3D is two CCX w/ 3D VCACHE on the Primary CCX and none on the 2nd.

But,
The CCX's without 3DVCACHE are the ones that will be Allowed to Turbo to 5.6/5.7 GHz. on the 79xxX3D Chips.
So one CCX is VCACHE Heavy, and the other Turbos higher on those 2 CPUs.

I'm looking to get a 5800X3D 2nd hand, as that's the highest my Mainboard will Allow.

Edited February 1, 2023 by SkateZilla

[Hoirtel]

Clear confirmation from AMD that the 7900X3D and 7950X3D are a bit of a waste. Delaying the one the everyone wants to sell the others first. Been waiting ages already guess I gotta wait more. 

[SkateZilla]

1 minute ago, Hoirtel said:

Clear confirmation from AMD that the 7900X3D and 7950X3D are a bit of a waste. Delaying the one the everyone wants to sell the others first. Been waiting ages already guess I gotta wait more. 

in Video Rendering they will sell, especially with 24 threads and 12 of them at 5.7 Ghz out of the box. As I can specify which cores I want my post effects rendered on, and which cores I want my final MKV Compressed with, 

As much as GPUs already handle, Exporting from the Editor, GPUs arent as fast as 12 cores.

Using a GPU for compressing HVEC1 for Streaming is fine, but most studios use those CPU Cores for rendering scenes.

[Hoirtel]

6 minutes ago, SkateZilla said:

in Video Rendering they will sell, especially with 24 threads and 12 of them at 5.7 Ghz out of the box. As I can specify which cores I want my post effects rendered on, and which cores I want my final MKV Compressed with, 

As much as GPUs already handle, Exporting from the Editor, GPUs arent as fast as 12 cores.

Using a GPU for compressing HVEC1 for Streaming is fine, but most studios use those CPU Cores for rendering scenes.

I'm sure they will sell, but for gaming alone the 7800 is the clear and therefore more popular choice. They are staggering the release just to give them a foothold in the market. Unusual for a lowest end SKU to be more anticipated! 

Are the standard chips not better for video rendering?

Edited February 1, 2023 by Hoirtel

[EightyDuce]

The staggered release is annoying but not unexpected. High-end skus typically hit first in hopes of getting people to buy what they otherwise wouldn't. 

7950X3D is going to sell well, especially at $699. 

I was really hoping for Feb 14 for 7800X3D.... But alas. Two more months as I continue to stare at the box of parts in my closet (case, rads, waterblocks, motherboard, ram, nvmes) 

[SkateZilla]

plus any strictly gamer that isnt doing anything else doesnt need 24 or 32 threads, lol

Also the studio I was at last week uses the 5800X3D as the VCACHE speeds up the VFX Rendering.

But they also said they would be considering upgrading to 7950X as the chip would give them the ability to assign 16 threads to render VFX and coordinate w/ GPU Rendering items with the VCACHE, and another 16 threads for Compressing using the CPU-Powered HVEC Codec at 5.7Ghz. 

[Hoirtel]

25 minutes ago, EightyDuce said:

The staggered release is annoying but not unexpected. High-end skus typically hit first in hopes of getting people to buy what they otherwise wouldn't. 

7950X3D is going to sell well, especially at $699. 

I was really hoping for Feb 14 for 7800X3D.... But alas. Two more months as I continue to stare at the box of parts in my closet (case, rads, waterblocks, motherboard, ram, nvmes) 

Yeah I guess so but all the other release they brought out three skus at a time...

I know how you feel about waiting.. Most of my parts are still cash. Just on the unlikely off chance things go sideways and I have to go 13th gen... 

17 minutes ago, SkateZilla said:

plus any strictly gamer that isnt doing anything else doesnt need 24 or 32 threads, lol

Also the studio I was at last week uses the 5800X3D as the VCACHE speeds up the VFX Rendering.

But they also said they would be considering upgrading to 7950X as the chip would give them the ability to assign 16 threads to render VFX and coordinate w/ GPU Rendering items with the VCACHE, and another 16 threads for Compressing using the CPU-Powered HVEC Codec at 5.7Ghz. 

Didn't know that, fair enough. Personally I wouldn't rule the extra to have it early and have a bit for productivity on the side but I worry the scheduler won't be up to the task and the perf will be down in dcs compared to 7800. Time will tell. 

[Rix]

So the 7800x3d is a $1100+ upgrade (MB/Memory/CPU) from the 5800x3d for essentially gaining 500Mhz.  The core count and cache are the same.  Seems excessive. 

Though it's unlocked, and we'll have to wait to see overclocking results, which may make it more appealing.

I was prepared to jump in, but now realize it would be wiser to wait and see DCS VR benchmarks vs the 5800x3d. 

[EightyDuce]

1 hour ago, Rix said:

So the 7800x3d is a $1100+ upgrade (MB/Memory/CPU) from the 5800x3d for essentially gaining 500Mhz.  The core count and cache are the same.  Seems excessive. 

Though it's unlocked, and we'll have to wait to see overclocking results, which may make it more appealing.

I was prepared to jump in, but now realize it would be wiser to wait and see DCS VR benchmarks vs the 5800x3d. 

To be honest, I don't think someone your your situstion is the target audience for this type of upgrade unless you have money to burn. 

Realistically, you're probably looking at 15-20% improvement? Don't think it's worth it. Overclocking potential on these will be minimal/negligible. 

If you're building a new systems, upgrading an old system where 5800X3D is not available such as in my case coming from 7700K, it makes more sense. 

[Rix]

Somewhat agree - although 10-15% is the gray zone for a decision.  Looks like we're getting close to multicore/Vulcan, and based on that it would be wise to let it all play out.  Aero users are always chasing hardware.  The battle is not frames - getting solid > 60fps, and staying between 12-15ms, but stuttering.

 

[BitMaster]

vor 18 Stunden schrieb SkateZilla:

plus any strictly gamer that isnt doing anything else doesnt need 24 or 32 threads, lol

Also the studio I was at last week uses the 5800X3D as the VCACHE speeds up the VFX Rendering.

But they also said they would be considering upgrading to 7950X as the chip would give them the ability to assign 16 threads to render VFX and coordinate w/ GPU Rendering items with the VCACHE, and another 16 threads for Compressing using the CPU-Powered HVEC Codec at 5.7Ghz. 

Are you sure all cores on the 2nd CCD will run full 5.7G ?

I haven’t had my hands on 7000 yet but 5000 and previous Ryzen do not behave like that. Maybe 2-3 cores do 5.7 ish, most will do less, I estimate 5-5.2G

Edited February 2, 2023 by BitMaster

[SkateZilla]

Not all cores, but the CCX sans V-Cache is the CCX that will have the Cores permitted to go that high, the CCX w/ V-Cache will have a lower limit due to voltage and thermals.

[Rix]

Correct - so the 7800x3d large-cached CCX stock boosts about 500Mhz faster than the 5800x3d.  The other CCX boosts much higher.

 

[Hoirtel]

Interesting watch. 

[EightyDuce]

2 hours ago, Hoirtel said:

Interesting watch. 

Seems to has the same speculations as those swirling around since the anmoucment. Clock speed, "overclocking", hardware scheduling.... 

We don't know until people start leaking or reviews come out. 

My 7700X will still be in the return window when highend X3D chips hit, from that 7800X3D performance could be more readily extrapolated. At that point I should be in a better position to decide whether to keep the 7700X or send it back and wait for 7800X3D. 

[some1]

On 2/1/2023 at 8:32 PM, SkateZilla said:

7900X3D is two CCX w/ 3D VCACHE on the Full 8 Core, and then none on the 2nd CCX w/ 4 Cores Disabled.

Veeeeery unlikely. It's probably 6+6 config, not 8+4. 

[Hoirtel]

1 hour ago, some1 said:

Veeeeery unlikely. It's probably 6+6 config, not 8+4. 

Hmmm. But then it would have less vcache cores than the 7800X3D...

[some1]

Yep, just like 7900X and 5900X are 6+6 and have less cores per CCD than 7700X and 5800X.

This would also allow AMD to package and sell partially defective chiplets, with 1-2 cores disabled, instead of throwing them in the bin. 

[SkateZilla]

it really depends on how they want to breakdown the V-Cache.

[EightyDuce]

I think It's going to depend on chip yields and binning, but it's more likely than not, that 7900X3D will be 6+6 (8 with 2 cores disabled/dsfective/etc). 

[Hoirtel]

Hmm. That also means it should have more cache per core? It might also be a better performer thermally. The reviews are going to be really important. 

[blkspade]

I feel that the 12-16 core models are a bigger deal because there are a lot of mixed use people on Zen 3 R9s that have been screaming for a v cache option. I'm on a 5950X and always have at least one virtual machine running and if I'm booted to Linux then Windows itself is going to be a VM. Other things I do in bursts benefit from having all those threads. It's a weird position to be in where I'll frequently use and appreciate the all the threads, but also play games where a 5800X3D crushes. Something like star citizen can go from mildly sub-par to really good. For people absolutely good with 8 cores the 5800X3D and 7700X are really good and fairly close most of the time. For me personally it would be great to have the combination of an iGPU, 32 threads, and vcache with the ability isolate a whole OS to a specific CCD.

[EightyDuce]

3 hours ago, Hoirtel said:

Hmm. That also means it should have more cache per core? It might also be a better performer thermally. The reviews are going to be really important. 

Cache isn't allocated per core. All cores on the CCD have access to the same pool of cache. 

As for thermals, if there is any difference, it would be negligible (couple of degrees). The reason they down-clocked (less power, less heat) the vcache CCD is to stay within the thermal envelope that allows non cache CCD to hit higher speeds.