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AMD Ryzen 9 7945HX3D Spotted: 16 Cores, 128MB of 3D V-Cache, and an RTX 4090

AMD plans to expand its notebook portfolio by adding its secret weapon to mobility Ryzen chips: Cache. 3D V-Cache. Following the successful release of the 7800X3D and the 7900X3D/7950X3D, Team Red will launch at least one 3D V-Cache chip for high-end gaming notebooks. A Weibo leak indicates that the Ryzen 9 7945HX3D is being planned in collaboration with ASUS, featuring the full-fledged core and cache configuration.

The Ryzen 9 7945HX3D will be derived from the Ryzen 9 7950X3D, featuring 16 Zen 4 cores and 128MB of L3 cache. One of the CCDs will be a standard Zen 4-class die, while the other will feature an additional 64MB 3D V-Cache die.

An ASUS ROG STRIX SCAR 17 gaming laptop has been spotted sporting the Ryzen 9 7945HX3D. The CPU has a boost clock of 5.4GHz and a TDP of up to 75W. For reference, the 7950X3D clocks as high as 5.7GHz on the vanilla Zen 4 die with a TDP of 120W. The 7945HX3D is paired with a GeForce RTX 4090 and 32GB DDR5 memory. The retailer has listed the flagship gaming notebook for a staggering price of $3,800.

The 14th Gen Meteor Lake will only power the sub-50W H series notebook segment, which means all the HX series parts will be a Raptor Lake rebrand. With its high power consumption and clock throttling, we have already seen Raptor Lake struggle in the mobility segment. A 3D V-Cache part will be an absolute killer from AMD’s side.

Areej Syed

Processors, PC gaming, and the past. I have been writing about computer hardware for over seven years with more than 5000 published articles. Started off during engineering college and haven't stopped since. Mass Effect, Dragon Age, Divinity, Torment, Baldur's Gate and so much more... Contact: areejs12@hardwaretimes.com.
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