AMD's 3D V-Cache Comes To Laptops: Ryzen 9 7945HX3D CPU Listed

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Following an Asus ROG Scar 17 listing with the X3D CPU.

Ryzen 7045 Series
(Image credit: AMD)

It seems that mobile power users may soon have a reason to review - and potentially upgrade - their systems. According to a Weibo post (shared on Twitter by HXL, @9550PRO), Asus is readying a ROG Strix SCAR laptop that features a desktop Ryzen 9 7945HX3D chip. Given the 'X3D' moniker for the chip, this new chip will come with AMD's gaming-performance-boosting 3D V-Cache technology. This same tech powers AMD's CPUs that rank on our list of best CPUs for gaming due to their market-leading gaming performance. 

While there's currently no information on the laptop's actual market availability, the shared Weibo screenshot does show the laptop's specs, and there's also a retail listing for a laptop powered by the chip, solidifying it as a true, enthusiast-performance desktop replacement laptop. Like the rest of the Dragon Range lineup, the 7945HX3D chip will consist of a standard CPU for a desktop PC that's been crammed into a laptop chassis.

According to the information, ROG's Strix SCAR 17 will ship with a 17.3" diagonal, 32 GB of DDR5 RAM, an undisclosed 2 TB SSD, and a 90 Wh battery - all wrapped up in a definitely-not-svelte chassis weighing in at 3 Kg. So there's mobility, yes - but a relatively limited one. Then again, the typical market for these devices sits as a full-fledged desktop replacement on a smaller form factor, rather than as a luggable, sit-in-the-park-while-training-AI solution.

But while there are expectations regarding the Ryzen 9 7945HX3D's performance - it is a Zen 4, 16-core CPU with a combined 80 MB L2 + L3 cache after all - it may be best for users to pay attention to the specification's "small text", as they do feature a configurable TDP ranging from 55 W through 75W. That configuration range is where different systems with the exact same hardware could perform differently (with increased performance coming at the expense of energy efficiency and, in this case, battery life.)

Once again, it pays to reinforce that this is unconfirmed information we're dealing with, so be sure to take it with a grain of salt. But the fact that some laptops packing AMD's Dragon Range lineup are already being listed bodes well for anyone looking to upgrade to such a powerful system in the not-so-distant future.

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Francisco Pires
Francisco Pires
Freelance News Writer

Francisco Pires is a freelance news writer for Tom's Hardware with a soft side for quantum computing.

6 Comments Comment from the forums
  • Sleepy_Hollowed
    Absolutely waiting for the laptops with these, not that Intel won't try really hard to make it so they're niche offerings due to licensing agreements with OEMs.
    Reply
  • NeoMorpheus
    Looking at the front page for the last couple of weeks and observing the non stop barrage of laptops released only with intel/ngreedia chips, I would say to AMD, dont waste your time, because it looks like nobody will sell them.
    Reply
  • mkarwin
    If it's a 17" 3kg model... then it's quite possibly going to be yet another refresh of internals of the last year chassis of the Scar range... I had high hopes it would land in a bigger refreshed and improved S17 chassis instead, bumped to an 18" taller AR screen... or at least the 17" current updated miniLED, but in a newer/improved chassis...
    Reply
  • ozicom
    I think this is the first cpu with igpu and 3d cache if it'll have an igpu. Writer did not disclose if it'll have an igpu so I guess will igpu have benefit with 3d cache or not? Also why amd don't think to make an apu with 3d cache?
    Reply
  • Yukazi
    ozicom said:
    I think this is the first cpu with igpu and 3d cache if it'll have an igpu. Writer did not disclose if it'll have an igpu so I guess will igpu have benefit with 3d cache or not? Also why amd don't think to make an apu with 3d cache?
    The Zen 4 X3D series have 2 cu graphics and don’t benefit from the additional cache so, if this follows, the laptops won’t either.
    Reply
  • Frozoken
    Yukazi said:
    The Zen 4 X3D series have 2 cu graphics and don’t benefit from the additional cache so, if this follows, the laptops won’t either.
    well it's just that is physically cannot access it iirc. Ofc 2cu would limit it anyway but that isn't the reason as far as I know.
    Reply