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AMD Ryzen 5 8640U vs AMD Ryzen 5 PRO 7540U: Comparison
Ryzen 5 8640U vs Ryzen 5 PRO 7540U p-core base clock compared
They are built to different briefs, and p-core base clock shows it, Ryzen 5 8640U 1.7 GHz against Ryzen 5 PRO 7540U 3.2 GHz. There is a split on tdp as well, 28 W on the Ryzen 5 8640U versus 15 W on the Ryzen 5 PRO 7540U. They differ on socket too, BGA on the Ryzen 5 8640U versus FP7, FP7r2 on the Ryzen 5 PRO 7540U. Igpu is not the same on both, AMD Radeon 740M/760M/780M Graphics on the Ryzen 5 8640U versus AMD Radeon 740M on the Ryzen 5 PRO 7540U. There is a split on memory type as well, DDR5, LPDDR5x on the Ryzen 5 8640U versus DDR5 or LPDDR5X on the Ryzen 5 PRO 7540U.
Which should you buy, Ryzen 5 8640U or Ryzen 5 PRO 7540U?
The Ryzen 5 8640U suits midrange thin-and-light laptops and office work, browsing and video calls, though it is not the pick for modern games at high settings without a dedicated GPU and copilot+ PC AI features, which need a 40+ TOPS NPU. It is the wrong buy for heavy video rendering or 3D work, where 8-core chips finish much sooner. The Ryzen 5 PRO 7540U is the one to take for ultraportable laptops and business travel, though it is not built for gaming laptops and heavy content creation. Our rating of the Ryzen 5 8640U (7.8/10): the AMD Ryzen 5 8640U is a well-balanced ultraportable chip that prioritizes battery life and everyday responsiveness. Our rating of the Ryzen 5 PRO 7540U (7.8/10): the AMD Ryzen 5 PRO 7540U is a well-balanced ultraportable chip that prioritizes battery life and everyday responsiveness.
What Ryzen 5 8640U and Ryzen 5 PRO 7540U have in common
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 8 further specifications as well.
Frequently asked questions
Is the L3 Cache the same on the Ryzen 5 8640U and Ryzen 5 PRO 7540U?
It is. Both are listed at 16 MB, so it is not a reason to pick one over the other.
Specs and benchmarks
Form Factor
- AMD Ryzen 5 8640U
- Laptop
- AMD Ryzen 5 PRO 7540U
- Laptop
Codename
- AMD Ryzen 5 8640U
- Hawk Point
- AMD Ryzen 5 PRO 7540U
- Phoenix
Release Year
- AMD Ryzen 5 8640U
- 2023
- AMD Ryzen 5 PRO 7540U
- 2023
TDP
- AMD Ryzen 5 8640U
- 28 W
- AMD Ryzen 5 PRO 7540U
- 15 W
iGPU
- AMD Ryzen 5 8640U
- AMD Radeon 740M/760M/780M Graphics (RDNA 3)
- AMD Ryzen 5 PRO 7540U
- AMD Radeon 740M
Market Segment
- AMD Ryzen 5 8640U
- Laptop
- AMD Ryzen 5 PRO 7540U
- Laptop
Microarchitecture
- AMD Ryzen 5 8640U
- Zen 4 (Phoenix/Hawk Point)
- AMD Ryzen 5 PRO 7540U
- Zen 4 (Phoenix/Hawk Point)
Socket
- AMD Ryzen 5 8640U
- BGA (soldered, mobile)
- AMD Ryzen 5 PRO 7540U
- FP7, FP7r2
Process Node
- AMD Ryzen 5 8640U
- 4 nm
- AMD Ryzen 5 PRO 7540U
- 4 nm
Total Cores
- AMD Ryzen 5 8640U
- 6
- AMD Ryzen 5 PRO 7540U
- 6
Performance Cores
- AMD Ryzen 5 8640U
- 6
- AMD Ryzen 5 PRO 7540U
- 6
Efficiency Cores
- AMD Ryzen 5 8640U
- 0
- AMD Ryzen 5 PRO 7540U
- 0
Total Threads
- AMD Ryzen 5 8640U
- 12
- AMD Ryzen 5 PRO 7540U
- 12
SMT Enabled
- AMD Ryzen 5 8640U
- Yes
- AMD Ryzen 5 PRO 7540U
- Yes
P-Core Base Clock
- AMD Ryzen 5 8640U
- 1.7 GHz
- AMD Ryzen 5 PRO 7540U
- 3.2 GHz
P-Core Boost Clock
- AMD Ryzen 5 8640U
- 4.9 GHz
- AMD Ryzen 5 PRO 7540U
- 4.9 GHz
L3 Cache
- AMD Ryzen 5 8640U
- 16 MB
- AMD Ryzen 5 PRO 7540U
- 16 MB
Base Power
- AMD Ryzen 5 8640U
- 28 W
- AMD Ryzen 5 PRO 7540U
- 28 W
Memory Type
- AMD Ryzen 5 8640U
- DDR5, LPDDR5x
- AMD Ryzen 5 PRO 7540U
- DDR5 or LPDDR5X
Integrated Graphics
- AMD Ryzen 5 8640U
- Yes
- AMD Ryzen 5 PRO 7540U
- Yes
Which one should you pick?
Choose 8640U if you want the higher L3 cache (16 MB vs 16 MB).
Choose 7540U if you already have it on hand or find it at a lower price.
Verdict
AMD Ryzen 5 8640U
7.8 / 10 Expert Rating
The AMD Ryzen 5 8640U is a well-balanced ultraportable chip that prioritizes battery life and everyday responsiveness.
AMD Ryzen 5 PRO 7540U
7.8 / 10 Expert Rating
The AMD Ryzen 5 PRO 7540U is a well-balanced ultraportable chip that prioritizes battery life and everyday responsiveness.