[US] 7900X3D discounted to $329

[filpo]

AMD Ryzen 9 7900X3D Gaming Processor - 12 Core & 24 Threads - 5.60 GHz Max Boost Clock - 128 MB L3 Cache - Integrated AMD Radeon Graphics - antonline.com

[Shimejii]

Still not worth buying 7800x3d Better then this, and the 7900x is better for productivity and you dont have to deal with buggy software.

 

Also ANTonline has a pretty meh reputation.

[filpo]

Just now, Shimejii said:

Also ANTonline has a pretty meh reputation.

every website is gonna have bad reviews

Antonline.com Reviews | Read Customer Service Reviews of antonline.com | 2 of 29 (trustpilot.com)

Newegg's 3 stars lmao 

Newegg Reviews | Read Customer Service Reviews of www.newegg.com (trustpilot.com)

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3 minutes ago, Shimejii said:

Still not worth buying 7800x3d Better then this, and the 7900x is better for productivity and you dont have to deal with buggy software.

It is at the price of a 7700x while having 4 more cores and 3D V-cache, that said, 7800X3D also dropped in price by $30 recently

[Shimejii]

2 minutes ago, filpo said:

every website is gonna have bad reviews

Antonline.com Reviews | Read Customer Service Reviews of antonline.com | 2 of 29 (trustpilot.com)

Newegg's 3 stars lmao 

Newegg Reviews | Read Customer Service Reviews of www.newegg.com (trustpilot.com)

ANTOnline Reviews - 3,451 Reviews of Antonline.com | Sitejabber

It is at the price of a 7700x while having 4 more cores and 3D V-cache, that said, 7800X3D also dropped in price by $30 recently

7900x3D and the 7950x3D are just not worth buying at all, the buggy CCD switching is STILL an issue. If it was just a  minor issue i would be fine with it, but its STILL causing serious issues with people that i know that have them. The stutters and programs having issues still with selecting the right CCD. Pretty baffled on how they still havent fixed them yet, if it is even fixable.

 

And the ANTonline one i know had some pretty bad CS issues, especially regarding faulty products. Newegg has had its issues with CS, and i still refuse to ever recommend someone buy used hardware from newegg lol

[Tan3l6]

Good price, but Zen 5 is supposedly incoming in a few months.

7900X3D is better than most Intel gaming CPUs at this point though.

[podkall]

44 minutes ago, Shimejii said:

7900x3D and the 7950x3D are just not worth buying at all, the buggy CCD switching is STILL an issue. If it was just a  minor issue i would be fine with it, but its STILL causing serious issues with people that i know that have them. The stutters and programs having issues still with selecting the right CCD. Pretty baffled on how they still havent fixed them yet, if it is even fixable.

 

And the ANTonline one i know had some pretty bad CS issues, especially regarding faulty products. Newegg has had its issues with CS, and i still refuse to ever recommend someone buy used hardware from newegg lol

I guess it is, though I'd rather ask @Agall to see if it's true or if there's any workarounds or techniques that make running these hybrid CPUs more bearable..

[Agall]

16 minutes ago, podkall said:

I guess it is, though I'd rather ask @Agall to see if it's true or if there's any workarounds or techniques that make running these hybrid CPUs more bearable..

I'd say that's worth it even if it involves hard disabling CCD1 and turning it effectively into a 7600x3D if its cheaper than a 7800x3D.

 

There's only some games, seemingly the ones that a lot of benchmarkers use to test games that exceed the multicore of a 6c/12t 3D v-cache CPU.

 

7900x3D's CCD0 can actually boost higher than the 7800x3D, since the R9x3D CPUs can go to 52.5x multiplier and the 7800x3D is limited to 50.5x. The 7900x3D running direct die with CCD1 disable might actually out perform a 7800x3D in a lot of games where it matters the most because of this.

 

I'm only waiting for the direct-die 3D printed spacers to arrive from Noctua to direct die cool my 7950x3D to test this, and hopefully not kill it in the process. Maybe I should just pick one of these up just in case  They're $400 USD here though.

 

Regarding the CCDs though, its entirely fixable with the CPU SMU CPPC setting in the UEFI I put in my signature.

[podkall]

7 minutes ago, Agall said:

I'd say that's worth it even if it involves hard disabling CCD1 and turning it effectively into a 7600x3D if its cheaper than a 7800x3D.

 

There's only some games, seemingly the ones that a lot of benchmarkers use to test games that exceed the multicore of a 6c/12t 3D v-cache CPU.

 

7900x3D's CCD0 can actually boost higher than the 7800x3D, since the R9x3D CPUs can go to 52.5x multiplier and the 7800x3D is limited to 50.5x. The 7900x3D running direct die with CCD1 disable might actually out perform a 7800x3D in a lot of games where it matters the most because of this.

 

I'm only waiting for the direct-die 3D printed spacers to arrive from Noctua to direct die cool my 7950x3D to test this, and hopefully not kill it in the process. Maybe I should just pick one of these up just in case  They're $400 USD here though.

 

Regarding the CCDs though, its entirely fixable with the CPU SMU CPPC setting in the UEFI I put in my signature.

Is the CPU flexible for specific cases, like when one is a gamer but also needs to like render or something in Blender or another app?

 

I'd guess even without CCD management the creative apps like Blender might score higher or faster on 7900x3D rather than 7800x3D right?

[Agall]

10 minutes ago, podkall said:

Is the CPU flexible for specific cases, like when one is a gamer but also needs to like render or something in Blender or another app?

 

I'd guess even without CCD management the creative apps like Blender might score higher or faster on 7900x3D rather than 7800x3D right?

So the way I use my 7950x3D and probably how most people use them is as a 7600x3D or 7800x3D with an extra 8 cores on standby. CPPC in cache forces CCD0 to do foreground tasks, where I'll see light usage on CCD1 likely handling background. Having the extra ~700MHz available from CCD1 is cool and all, but I don't think its worth the downsides. That can be circumvented with Processor Affinity settings in Task Manager anyways for the instances where it does matter for single threaded processes.

 

It doesn't fully park CCD1 but as long as CCD0 can handle that application within its 8c/16t, then it won't spill over into CCD1. 7900x3D runs into the problem where its only operating at 4.4-4.9GHz under a heavy load with 6ct/12t that just isn't enough for heavily ray traced titles that sometimes need more than even 8c/16t. 

 

My suspicion is that CCD0 will operate at 5.25GHz all core with direct die. It might also be enough of a boost in multicore to prevent spillover, even with 6c/12t. I can test that with my 7950x3D if it survives.

[podkall]

41 minutes ago, Agall said:

So the way I use my 7950x3D and probably how most people use them is as a 7600x3D or 7800x3D with an extra 8 cores on standby. CPPC in cache forces CCD0 to do foreground tasks, where I'll see light usage on CCD1 likely handling background. Having the extra ~700MHz available from CCD1 is cool and all, but I don't think its worth the downsides. That can be circumvented with Processor Affinity settings in Task Manager anyways for the instances where it does matter for single threaded processes.

 

It doesn't fully park CCD1 but as long as CCD0 can handle that application within its 8c/16t, then it won't spill over into CCD1. 7900x3D runs into the problem where its only operating at 4.4-4.9GHz under a heavy load with 6ct/12t that just isn't enough for heavily ray traced titles that sometimes need more than even 8c/16t. 

 

My suspicion is that CCD0 will operate at 5.25GHz all core with direct die. It might also be enough of a boost in multicore to prevent spillover, even with 6c/12t. I can test that with my 7950x3D if it survives.

I've seen you talk about this in the lasso post, so I'm not entirely out of picture, but thx for the info,

 

still haven't fully answered my Blender question, though I guess I could look at reviews that run creative programs and compare all the CPUs

[Agall]

22 minutes ago, podkall said:

I've seen you talk about this in the lasso post, so I'm not entirely out of picture, but thx for the info,

 

still haven't fully answered my Blender question, though I guess I could look at reviews that run creative programs and compare all the CPUs

I'm not a Blender user, so I'm unaware of its performance characteristics. If its multicore heavy, then it doesn't matter ultimately since the 7950x3D works like a normal 7950x in these scenarios, just with a lower maximum TDP at 150W compared to the 7950x's 250W.

[podkall]

2 minutes ago, Agall said:

I'm not a Blender user, so I'm unaware of its performance characteristics. If its multicore heavy, then it doesn't matter ultimately since the 7950x3D works like a normal 7950x in these scenarios, just with a lower maximum TDP at 150W compared to the 7950x's 250W.

it's multicore, kind of comparable to Cinebench with the added GPU's help

[Agall]

12 minutes ago, podkall said:

it's multicore, kind of comparable to Cinebench with the added GPU's help

The only limitation of the 'prefer cache' setting is with single threaded applications that would otherwise benefit more from operating on CCD1 which'll default to CCD0. That's adjustable with Processor Affinity, since if its using both CCDs anyways, it doesn't matter that it defaults to CCD0.

 

So, the only scenario I can think of is heavily single threaded applications that don't care for L3 cache like a cinebench R23 single thread run. In that scenario, either accept the lower performance or use Processor Affinity to force CCD1.

[podkall]

30 minutes ago, Agall said:

The only limitation of the 'prefer cache' setting is with single threaded applications that would otherwise benefit more from operating on CCD1 which'll default to CCD0. That's adjustable with Processor Affinity, since if its using both CCDs anyways, it doesn't matter that it defaults to CCD0.

 

So, the only scenario I can think of is heavily single threaded applications that don't care for L3 cache like a cinebench R23 single thread run. In that scenario, either accept the lower performance or use Processor Affinity to force CCD1.

quite the smoke for your CPU compared to the prefered 7800x3D, but like I mentioned before, slim use case, 7800x3D probably better in most scenarios,

 

 

[Agall]

9 minutes ago, podkall said:

quite the smoke for your CPU compared to the prefered 7800x3D, but like I mentioned before, slim use case, 7800x3D probably better in most scenarios,

 

 

It is which is why I generally don't recommend the R9x3D CPUs in general. Single CCD is more than enough for most people.

 

Although, a 7950x3D direct die with CCD1 disable is objectively better  AND WE GONE LEARN sometime in the near future, hopefully.