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AMD Ryzen 9 7940H vs AMD Ryzen 9 7945HX: Comparison
Ryzen 9 7940H vs Ryzen 9 7945HX l3 cache compared
On l3 cache the spread is 75%, Ryzen 9 7940H 16 MB against Ryzen 9 7945HX 64 MB, so Ryzen 9 7945HX takes it. They differ on p-core base clock too, 4.0 GHz on the Ryzen 9 7940H versus 2.5 GHz on the Ryzen 9 7945HX. They differ on tdp too, 45 W on the Ryzen 9 7940H versus 55 W on the Ryzen 9 7945HX. There is a split on socket as well, BGA on the Ryzen 9 7940H versus FL1 on the Ryzen 9 7945HX. Igpu is not the same on both, AMD Radeon 780M on the Ryzen 9 7940H versus AMD Radeon 610M Graphics on the Ryzen 9 7945HX.
Which should you buy, Ryzen 9 7940H or Ryzen 9 7945HX?
The Ryzen 9 7940H suits mainstream laptops and multitasking and productivity, though it is not built for high-end gaming and extreme battery-life-first designs. 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. Our rating of the Ryzen 9 7940H (8.1/10): the AMD Ryzen 9 7940H strikes a strong balance between performance and portability for mainstream laptops. 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
The common ground is wider than the gap: efficiency cores, integrated graphics, form factor, release year and market segment are identical here. They match on 2 further specifications as well.
Frequently asked questions
Do the Ryzen 9 7940H and Ryzen 9 7945HX differ on total cores?
Yes. Total Cores reads 8 on the Ryzen 9 7940H versus 16 on the Ryzen 9 7945HX.
Is the SMT Enabled the same on the Ryzen 9 7940H and Ryzen 9 7945HX?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- AMD Ryzen 9 7940H
- Laptop
- AMD Ryzen 9 7945HX
- Laptop
Codename
- AMD Ryzen 9 7940H
- Phoenix
- AMD Ryzen 9 7945HX
- Dragon Range
Release Year
- AMD Ryzen 9 7940H
- 2023
- AMD Ryzen 9 7945HX
- 2023
TDP
- AMD Ryzen 9 7940H
- 45 W
- AMD Ryzen 9 7945HX
- 55 W
iGPU
- AMD Ryzen 9 7940H
- AMD Radeon 780M
- AMD Ryzen 9 7945HX
- AMD Radeon 610M Graphics (RDNA 2)
Market Segment
- AMD Ryzen 9 7940H
- Laptop
- AMD Ryzen 9 7945HX
- Laptop
Microarchitecture
- AMD Ryzen 9 7940H
- Zen 4 (Phoenix)
- AMD Ryzen 9 7945HX
- Zen 4 (Dragon Range)
Socket
- AMD Ryzen 9 7940H
- BGA (soldered, mobile)
- AMD Ryzen 9 7945HX
- FL1
Process Node
- AMD Ryzen 9 7940H
- 4 nm
- AMD Ryzen 9 7945HX
- 5 nm
Total Cores
- AMD Ryzen 9 7940H
- 8
- AMD Ryzen 9 7945HX
- 16Best
Performance Cores
- AMD Ryzen 9 7940H
- 8
- AMD Ryzen 9 7945HX
- 16Best
Efficiency Cores
- AMD Ryzen 9 7940H
- 0
- AMD Ryzen 9 7945HX
- 0
Total Threads
- AMD Ryzen 9 7940H
- 16
- AMD Ryzen 9 7945HX
- 32Best
SMT Enabled
- AMD Ryzen 9 7940H
- Yes
- AMD Ryzen 9 7945HX
- Yes
P-Core Base Clock
- AMD Ryzen 9 7940H
- 4.0 GHz
- AMD Ryzen 9 7945HX
- 2.5 GHz
P-Core Boost Clock
- AMD Ryzen 9 7940H
- 5.2 GHz
- AMD Ryzen 9 7945HX
- 5.4 GHz
L3 Cache
- AMD Ryzen 9 7940H
- 16 MB-75%
- AMD Ryzen 9 7945HX
- 64 MBBest
Memory Type
- AMD Ryzen 9 7940H
- DDR5
- AMD Ryzen 9 7945HX
- DDR5
Integrated Graphics
- AMD Ryzen 9 7940H
- Yes
- AMD Ryzen 9 7945HX
- Yes
Which one should you pick?
Choose 7940H if you already have it on hand or find it at a lower price.
Choose 7945HX if you want the higher L3 cache (64 MB vs 16 MB).
Verdict
AMD Ryzen 9 7940H
8.1 / 10 Expert Rating
The AMD Ryzen 9 7940H strikes a strong balance between performance and portability for mainstream laptops.
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.