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AMD Ryzen 9 7945HX vs AMD Ryzen 9 7945HX3D: Comparison
What is the difference between Ryzen 9 7945HX and Ryzen 9 7945HX3D?
The gap that matters here is l3 cache: Ryzen 9 7945HX 64 MB against Ryzen 9 7945HX3D 128 MB, which puts Ryzen 9 7945HX3D 50% ahead. P-core base clock is not the same on both, 2.5 GHz on the Ryzen 9 7945HX versus 2.3 GHz on the Ryzen 9 7945HX3D.
Ryzen 9 7945HX vs Ryzen 9 7945HX3D: which one fits your build
Buy the Ryzen 9 7945HX for gaming laptops and mobile content creation, though it is not the pick for thin-and-light ultraportables and all-day battery life needs. The Ryzen 9 7945HX3D is the one to take for high-end gaming laptops and mobile workstations, though it is the wrong buy for thin-and-light laptops and battery-focused ultraportables. Our rating of the Ryzen 9 7945HX (8.5/10): the AMD Ryzen 9 7945HX delivers desktop-class multi-core performance in a laptop form factor, ideal for demanding gaming and creation workloads. Our rating of the Ryzen 9 7945HX3D (9.1/10): the AMD Ryzen 9 7945HX3D is the pinnacle of mobile gaming performance, bringing 3D V-Cache and desktop-class core counts to a laptop chassis.
Where the two are identical
Where they agree, they agree completely, total cores, performance cores, efficiency cores, total threads and p-core boost clock included, so the decision does not turn on any of those. They match on 10 further specifications as well.
Frequently asked questions
Is the TDP the same on the Ryzen 9 7945HX and Ryzen 9 7945HX3D?
It is. Both are listed at 55 W, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- AMD Ryzen 9 7945HX
- Laptop
- AMD Ryzen 9 7945HX3D
- Laptop
Codename
- AMD Ryzen 9 7945HX
- Dragon Range
- AMD Ryzen 9 7945HX3D
- Dragon Range
Release Year
- AMD Ryzen 9 7945HX
- 2023
- AMD Ryzen 9 7945HX3D
- 2023
TDP
- AMD Ryzen 9 7945HX
- 55 W
- AMD Ryzen 9 7945HX3D
- 55 W
iGPU
- AMD Ryzen 9 7945HX
- AMD Radeon 610M Graphics (RDNA 2)
- AMD Ryzen 9 7945HX3D
- AMD Radeon 610M Graphics (RDNA 2)
Market Segment
- AMD Ryzen 9 7945HX
- Laptop
- AMD Ryzen 9 7945HX3D
- Laptop
Microarchitecture
- AMD Ryzen 9 7945HX
- Zen 4 (Dragon Range)
- AMD Ryzen 9 7945HX3D
- Zen 4 (7040/9955 Dragon Range)
Socket
- AMD Ryzen 9 7945HX
- FL1
- AMD Ryzen 9 7945HX3D
- FL1
Process Node
- AMD Ryzen 9 7945HX
- 5 nm
- AMD Ryzen 9 7945HX3D
- 5 nm
Total Cores
- AMD Ryzen 9 7945HX
- 16
- AMD Ryzen 9 7945HX3D
- 16
Performance Cores
- AMD Ryzen 9 7945HX
- 16
- AMD Ryzen 9 7945HX3D
- 16
Efficiency Cores
- AMD Ryzen 9 7945HX
- 0
- AMD Ryzen 9 7945HX3D
- 0
Total Threads
- AMD Ryzen 9 7945HX
- 32
- AMD Ryzen 9 7945HX3D
- 32
SMT Enabled
- AMD Ryzen 9 7945HX
- Yes
- AMD Ryzen 9 7945HX3D
- Yes
P-Core Base Clock
- AMD Ryzen 9 7945HX
- 2.5 GHz
- AMD Ryzen 9 7945HX3D
- 2.3 GHz
P-Core Boost Clock
- AMD Ryzen 9 7945HX
- 5.4 GHz
- AMD Ryzen 9 7945HX3D
- 5.4 GHz
L3 Cache
- AMD Ryzen 9 7945HX
- 64 MB-50%
- AMD Ryzen 9 7945HX3D
- 128 MBBest
Base Power
- AMD Ryzen 9 7945HX
- 55 W
- AMD Ryzen 9 7945HX3D
- 55 W
Memory Type
- AMD Ryzen 9 7945HX
- DDR5
- AMD Ryzen 9 7945HX3D
- DDR5
Integrated Graphics
- AMD Ryzen 9 7945HX
- Yes
- AMD Ryzen 9 7945HX3D
- Yes
Which one should you pick?
Choose 7945HX if you already have it on hand or find it at a lower price.
Choose 7945HX3D if you want the higher L3 cache (128 MB vs 64 MB).
Verdict
AMD Ryzen 9 7945HX
8.5 / 10 Expert Rating
The AMD Ryzen 9 7945HX delivers desktop-class multi-core performance in a laptop form factor, ideal for demanding gaming and creation workloads.
AMD Ryzen 9 7945HX3D
9.1 / 10 Expert Rating
The AMD Ryzen 9 7945HX3D is the pinnacle of mobile gaming performance, bringing 3D V-Cache and desktop-class core counts to a laptop chassis.