Poll: Ryzen 7950X3D, 7900X3D, 7800X3D

[LtMatt]

@LtMatt How many hours did it take you to tune your CPU? Assuming the majority of this is setting negative voltage offset for each of the 16 cores, and testing until they crash (as you described earlier with ycruncher).

Also, once you've established a voltage for all 16 cores (are they similar or different offset for each individual) does this tend to persist through BIOS revisions? As in, taking a picture/recording the curve settings, then quickly dialing in the same settings when next BIOS update comes around?

Just trying to see if it's going to be worth me doing this when my 7950X3D arrives. Playing some CPU demanding games at 4K (Cyberpunk, Hogwarts etc).

I’m not sure, I'm still doing it Lol. Best to just take a guess initially with curve optimiser all core and set it to something like -15 and test. Test under y cruncher for a few hours and wait 24 hours to see if the system randomly restarts at idle/light load. If it doesn't go ahead and lower it by another -5 and repeat. At some point, (for me it was around 21) one core will throw an error in y cruncher, or the system will just restart randomly unexpectedly. Hope its the former and not the latter, as the former is easier to know which core didn't like the negative offset. Assuming it was y cruncher that threw and error and highlighted the problematic core, at that point switch to per core curve optimiser and back that core off two notches. Now focus on the others. It can be a long and tedious process, but this is the best way I've found to do it. It's not so bad with an 8 core CPU, it's the 16 cores that can be a killer. Generally, it persists through BIOS changes, but taking pictures is essential once things are set because you will forget after a period of time. It's definitely worth doing IMO.

 

[Deleted member 258511]

Hogwarts Legacy | R9 7950X3D | RTX 4090 | 4K - 1440p - 1080p | Ray Tracing ON & OFF | Max Settings

Buy Gamekeys at CDKeys ►https://cdkeys.pxf.io/xkJg3v Please hit the thumbs up button and subscribe if you like what you see.Recorded with my dedicated RECORD...

youtu.be

These numbers look bad, drops below 60

I would be disappointed if that were the case. Somethings not right. I played 4k native with RT off because I didn’t like how it looked on the 13900k. I’d expect the same or better with the 7950x 3d. Unless it’s just one of those games, but I doubt it.

 

[Bencher]

I would be disappointed if that were the case. Somethings not right. I played 4k native with RT off because I didn’t like how it looked on the 13900k. I’d expect the same or better with the 7950x 3d. Unless it’s just one of those games, but I doubt it.

Oh it definitely is one of these games


It's the heaviest AAA game ive ever played in terms of CPU, especially in hogsmeade. Way lower framerate than cyberpunk.

 

[Hotwired]

Hogwarts Legacy | R9 7950X3D | RTX 4090 | 4K - 1440p - 1080p | Ray Tracing ON & OFF | Max Settings

Buy Gamekeys at CDKeys ►https://cdkeys.pxf.io/xkJg3v Please hit the thumbs up button and subscribe if you like what you see.Recorded with my dedicated RECORD...

youtu.be

These numbers look bad, drops below 60

I'm not sure what is up with that channel, but all his numbers look bad, no matter what CPU or GPU he is using. He often gets posted by someone as a way to point out how bad product X runs a game.

I have Hogwarts, and it ran great on the 7950X, see my videos below. However, I can't bring myself to play it again on the X3D but I'll bet my life savings it runs just fine.

That 7950X3D is obviously running on only the 3D CCD and getting 70fps

The 7950 is running on two regular CCD and getting 114fps

Not all games want to see half the cores, lower clockspeed and a pile of cache sounds like the most obvious answer.

 

[steverebo]

What frequency do the vcach cores run at on the 7900x3d

 

[Hotwired]

What frequency do the vcach cores run at on the 7900x3d

5GHz give or take a few %

 

[steverebo]

5GHz give or take a few %

Ok, that's interesting I thought the vcache cores on the 7950x and 7900x both ran at 5.25ghz and the 7800x ran at 5ghz

 

[Deleted member 258511]

Oh it definitely is one of these games


It's the heaviest AAA game ive ever played in terms of CPU, especially in hogsmeade. Way lower framerate than cyberpunk.

So you ditching Tom’s Diner for The Hog’s Head Inn?

 

[Bencher]

That 7950X3D is obviously running on only the 3D CCD and getting 70fps

The 7950 is running on two regular CCD and getting 114fps

Not all games want to see half the cores, lower clockspeed and a pile of cache sounds like the most obvious answer.

That's not it, the 7950 run is at the start of the game, my 12900k gets over 130 fps there. In hogsmeade i drop to 70ies, even lower, sometimes even below 60.

 

[Bencher]

So you ditching Tom’s Diner for The Hog’s Head Inn?

Nah, cyberpunk is much better optimized, hogwarts just curbstomps 2 cores to within an inch of their lives while leaving everything else at almost idle.

 

[Hotwired]

Ok, that's interesting I thought the vcache cores on the 7950x and 7900x both ran at 5.25ghz and the 7800x ran at 5ghz

The 5.25GHz number is an unreliable boost number imo

You can see 5.25GHz in the max column for 1 of the 3D cores as I show here: https://forums.overclockers.co.uk/t...00x3d-7800x3d.18963722/page-110#post-36246017

Does that make the entire CCD 5.25GHz?

 

[steverebo]

The 5.25GHz number is an unreliable boost number imo

You can see 5.25GHz in the max column for 1 of the 3D cores as I show here: https://forums.overclockers.co.uk/t...00x3d-7800x3d.18963722/page-110#post-36246017

Does that make the entire CCD 5.25GHz?

What are AMD doing so I thought the difference between the 2 too tier and 7800x3d was higher ccd frequency but if the code frequency is the same it make both the 7950x3d and 7900x3d redundant for gaming

 

[DC2K]

Has anyone any hands on experience with the 7900x3D?

 

[Hotwired]

What are AMD doing so I thought the difference between the 2 too tier and 7800x3d was higher ccd frequency but if the code frequency is the same it make both the 7950x3d and 7900x3d redundant for gaming

They are offering a hybrid of normal and cache cores because people kept moaning and moaning and moaning that if AMD can make a 3D cache chiplet like the 5800X3D then why not a bigger cpu with it.

AMD decided that two 3D cache chiplets wouldn't help gaming so they put a regular chiplet with it so if you're willing to fiddle a bit you get a gaming cpu that does decent production workloads because of the extra cores.

But yes, the 7800X3D is going to clean up because it's all that actual gamers actually need or want.

 

[Narn]

The joy of PC's. Glad you got it sorted in the end though. I got the MOBO Nov 22, gonna try that fix Grim posted and see what happens.

EDIT: Just realised I have unintentionally derailed this thread, apologies.

not at all, looks like i have a future problem to look forward to whenever i finally upgrade. at least i now have some idea how to fix it

 

[Noxia]

So you ditching Tom’s Diner for The Hog’s Head Inn?

I'm actually going to get PTSD next time I see that place in the game.

 

[Quixote]

What are AMD doing so I thought the difference between the 2 too tier and 7800x3d was higher ccd frequency but if the code frequency is the same it make both the 7950x3d and 7900x3d redundant for gaming

It boggles my mind that no one seems able to compute this simple idea. Including, more or less, HUB & Gamer's Nexus.

- I want a PC that performs very well in games, somewhere near the best
- I want a PC that performs very well in productivity, somewhere near the best
- I'd like it to be pretty power efficient, especially under all-core productivity workloads
- I'd like a lot (like 64GB) of system RAM for productivity, so it would be great if I could buy fairly cheap RAM with slack timings & not suffer too much of a performance hit
- I'd like it to offer a good upgrade path
- I'm prepared to pay something of a premium to tick all these boxes at once.

The 7950x3D & 7900x3D answer that question. Can't for the life of me work out why that's so hard for people to understand.

If pure gaming is the aim, then wait for the 7800x3D, or get a 13600k, or a 7700x with fast RAM, or 5800x3D & keep money in your pocket.

 

[LtMatt]

It boggles my mind that no one seems able to compute this simple idea. Including, more or less, HUB & Gamer's Nexus.

- I want a PC that performs very well in games, somewhere near the best
- I want a PC that performs very well in productivity, somewhere near the best
- I'd like it to be pretty power efficient, especially under all-core productivity workloads
- I'd like a lot (like 64GB) of system RAM for productivity, so it would be great if I could buy fairly cheap RAM with slack timings & not suffer too much of a performance hit
- I'd like it to offer a good upgrade path
- I'm prepared to pay something of a premium to tick all these boxes at once.

The 7950x3D & 7900x3D answer that question. Can't for the life of me work out why that's so hard for people to understand.

If pure gaming is the aim, then wait for the 7800x3D, or get a 13600k, or a 7700x with fast RAM, or 5800x3D & keep money in your pocket.

Preach!

 

[LtMatt]

The tuning of curve optimser is ongoing. Logical core 15 is throwing an error, so that means I need to decrease the negative offset margin (2 notches) on core 7.

 

[the wopster]

The tuning of curve optimser is ongoing. Logical core 15 is throwing an error, so that means I need to decrease the negative offset margin (2 notches) on core 7.

What is that you’re using to test the curve optimzer? Also does it work without Ryawn master as for some reason it won’t install on my system