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AMD Ryzen 9 7940HX vs AMD Ryzen 9 7945HX: Comparison
Ryzen 9 7940HX vs Ryzen 9 7945HX: the p-core boost clock difference
The first real difference is p-core boost clock: Ryzen 9 7940HX 5.2 GHz against Ryzen 9 7945HX 5.4 GHz. They differ on p-core base clock too, 2.4 GHz on the Ryzen 9 7940HX versus 2.5 GHz on the Ryzen 9 7945HX. There is a split on release year as well, 2024 on the Ryzen 9 7940HX versus 2023 on the Ryzen 9 7945HX.
Who each one is for
The Ryzen 9 7940HX suits gaming laptops and mobile content creation, though it is not the pick for thin-and-light ultraportables and all-day battery life needs. Buy the Ryzen 9 7945HX for gaming laptops and mobile content creation, though it is the wrong buy for thin-and-light ultraportables and all-day battery life needs. Our rating of the Ryzen 9 7940HX (8.5/10): the AMD Ryzen 9 7940HX delivers desktop-class multi-core performance in a laptop form factor, ideal for demanding gaming and creation workloads. 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.
Where the two are identical
Where they agree, they agree completely, total cores, performance cores, efficiency cores, total threads and tdp included, so the decision does not turn on any of those. They match on 10 further specifications as well.
Frequently asked questions
Is the L3 Cache the same on the Ryzen 9 7940HX and Ryzen 9 7945HX?
It is. Both are listed at 64 MB, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- AMD Ryzen 9 7940HX
- Laptop
- AMD Ryzen 9 7945HX
- Laptop
Codename
- AMD Ryzen 9 7940HX
- Dragon Range
- AMD Ryzen 9 7945HX
- Dragon Range
Release Year
- AMD Ryzen 9 7940HX
- 2024
- AMD Ryzen 9 7945HX
- 2023
TDP
- AMD Ryzen 9 7940HX
- 55 W
- AMD Ryzen 9 7945HX
- 55 W
iGPU
- AMD Ryzen 9 7940HX
- AMD Radeon 610M Graphics (RDNA 2)
- AMD Ryzen 9 7945HX
- AMD Radeon 610M Graphics (RDNA 2)
Market Segment
- AMD Ryzen 9 7940HX
- Laptop
- AMD Ryzen 9 7945HX
- Laptop
Microarchitecture
- AMD Ryzen 9 7940HX
- Zen 4 (Dragon Range)
- AMD Ryzen 9 7945HX
- Zen 4 (Dragon Range)
Socket
- AMD Ryzen 9 7940HX
- FL1
- AMD Ryzen 9 7945HX
- FL1
Process Node
- AMD Ryzen 9 7940HX
- 5 nm
- AMD Ryzen 9 7945HX
- 5 nm
Total Cores
- AMD Ryzen 9 7940HX
- 16
- AMD Ryzen 9 7945HX
- 16
Performance Cores
- AMD Ryzen 9 7940HX
- 16
- AMD Ryzen 9 7945HX
- 16
Efficiency Cores
- AMD Ryzen 9 7940HX
- 0
- AMD Ryzen 9 7945HX
- 0
Total Threads
- AMD Ryzen 9 7940HX
- 32
- AMD Ryzen 9 7945HX
- 32
SMT Enabled
- AMD Ryzen 9 7940HX
- Yes
- AMD Ryzen 9 7945HX
- Yes
P-Core Base Clock
- AMD Ryzen 9 7940HX
- 2.4 GHz
- AMD Ryzen 9 7945HX
- 2.5 GHz
P-Core Boost Clock
- AMD Ryzen 9 7940HX
- 5.2 GHz
- AMD Ryzen 9 7945HX
- 5.4 GHz
L3 Cache
- AMD Ryzen 9 7940HX
- 64 MB
- AMD Ryzen 9 7945HX
- 64 MB
Base Power
- AMD Ryzen 9 7940HX
- 55 W
- AMD Ryzen 9 7945HX
- 55 W
Memory Type
- AMD Ryzen 9 7940HX
- DDR5
- AMD Ryzen 9 7945HX
- DDR5
Integrated Graphics
- AMD Ryzen 9 7940HX
- Yes
- AMD Ryzen 9 7945HX
- Yes
Which one should you pick?
Choose 7940HX if you want the higher L3 cache (64 MB vs 64 MB).
Choose 7945HX if you already have it on hand or find it at a lower price.
Verdict
AMD Ryzen 9 7940HX
8.5 / 10 Expert Rating
The AMD Ryzen 9 7940HX delivers desktop-class multi-core performance in a laptop form factor, ideal for demanding gaming and creation workloads.
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.