News AMD Ryzen 9 7945HX3D Is the First 3D V-Cache CPU for Laptops

[Admin]

AMD's Ryzen 9 7945HX3D is coming to gaming laptops, making it the company's first 3D V-Cache processor for mobile.

AMD Ryzen 9 7945HX3D Is the First 3D V-Cache CPU for Laptops : Read more

 

[Alvar "Miles" Udell]

The regular model of this laptop is on sale now for $3400 at Newegg. If AMD just tacks on a $100-$200 or so price premium for the 3D cache, like they do for the desktop models, it's not going to be that bad. Still far in the "are you insane" levels of price, but if you're using a 4090M to play games at 1920x1080, then it fits.

https://www.newegg.com/N82E16834236375

 

[Metal Messiah.]

The chip is a 16-core, 32-thread processor with a boost clock up to 5.4 GHz (as of publication, AMD didn't list base clocks).

This mobile CPU actually features a base clock speed of 2.3 GHz that is 200 MHz lower than the vanilla Ryzen 9 7945HX, but the boost frequency remains the same at 5.4 GHz. So it is 2.3 for base.

Now it remains to be seen how AMD's 'PPM Provisioning file' and the '3D V-Cache Performance Optimizer' drivers work in tandem with Microsoft's Game Mode. And does the OS really park the CCD without the 3D V-Cache, when a game doesn't require it ?

So the L3 cache on this SKU appears to be 128 MB (96+32), plus 16 for L2 cache, thus giving a total of 144 MB.

 

[oofdragon]

Why a super multi core CPU even exist as a mobile chip? If AMD was to launch a 7600X3D it would be right there with the 7950X3D, if you need super multi core (aka productivity time saver) you go desktop, if you go mobile you want battery time. Like is someone really flying on vacation but can't live withouth both super multi core and gaming for a week? For god sake ..

 

[Cooe]

Why a super multi core CPU even exist as a mobile chip? If AMD was to launch a 7600X3D it would be right there with the 7950X3D, if you need super multi core (aka productivity time saver) you go desktop, if you go mobile you want battery time. Like is someone really flying on vacation but can't live withouth both super multi core and gaming for a week? For god sake ..

🤦 This isn't hard to understand... Many, MANY people only want a single computer (specifically a laptop) that can do everything they want & potentially might need, and proper desktops are less popular right now than they've literally ever been in the history of personal computers (and that's not my personal opinion or anything, bc I LOOOOOOVE building/using desktop PC's).

Aka, high powered laptops that can properly replace a desktop (at least in everyway except expandability & upgradability ofc) have a MASSIVE market. And that market has SIGNIFICANT overlaps with the gaming laptop market as well, which is why this chip exists.

 

[Cooe]

This mobile CPU actually features a base clock speed of 2.3 GHz that is 200 MHz lower than the vanilla Ryzen 9 7945HX, but the boost frequency remains the same at 5.4 GHz. So it is 2.3 for base.

Now it remains to be seen how AMD's 'PPM Provisioning file' and the '3D V-Cache Performance Optimizer' drivers work in tandem with Microsoft's Game Mode. And does the OS really park the CCD without the 3D V-Cache, when a game doesn't require it ?

So the L3 cache on this SKU appears to be 128 MB (96+32), plus 16 for L2 cache, thus giving a total of 144 MB.

Thread scheduling in Windows with the heterogeneous dual-CCD X3D CPUs has already significantly improved since launch (if using the latest AMD X3D & chipset drivers and AGESA version ofc), but in the rare occasions where it still doesn't work correctly you can always just park the non-X3D CCD's cores manually before you game and basically temporarily turn it into a mobile R7 7800X3D.

While AMD and Microsoft REALLY need to address all the still existing improper thread scheduling edge cases on these heterogeneous dual-CCD X3D chips, it's REALLY not the end of the world to have to spend like ≈1min manually parking those cores before you start a gaming session that could literally last hours, should you happen to encounter one of said still extant edge cases. 🤷

 

[deksman]

Why a super multi core CPU even exist as a mobile chip? If AMD was to launch a 7600X3D it would be right there with the 7950X3D, if you need super multi core (aka productivity time saver) you go desktop, if you go mobile you want battery time. Like is someone really flying on vacation but can't live withouth both super multi core and gaming for a week? For god sake ..

Because there are people like me who do content creation, productivity and gaming on the go... as such we need a desktop replacement which we can move from one location to the next.

So, this chip is intended for such individuals.

 

[TechyIT223]

How 🔥 hot will this Laptop run makes me wonder.