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AMD Ryzen 5 8640U vs Intel Core i5-1335U: Comparison
AMD Ryzen 5 8640U vs Intel Core i5-1335U total cores compared
Expect a near tie. The closest thing to a difference is total cores, AMD Ryzen 5 8640U 6 against Intel Core i5-1335U 10. L3 cache runs the same way, 16 MB on the AMD Ryzen 5 8640U versus 12 MB on the Intel Core i5-1335U, another win for AMD Ryzen 5 8640U. They differ on igpu too, AMD Radeon 740M/760M/780M Graphics on the AMD Ryzen 5 8640U versus Intel Iris Xe Graphics on the Intel Core i5-1335U.
Which should you buy, AMD Ryzen 5 8640U or Intel Core i5-1335U?
Buy the AMD Ryzen 5 8640U for 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 Intel Core i5-1335U suits ultra-thin laptops and business laptops, though it is not built for gaming laptops and heavy sustained workloads. Our rating of the AMD 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 Intel Core i5-1335U (7.7/10): the Intel Core i5-1335U prioritizes battery life and portability, fitting thin business and everyday laptops.
What AMD Ryzen 5 8640U and Intel Core i5-1335U have in common
Everything else lines up. Total threads, integrated graphics, form factor, release year and market segment read the same on both, so those are not worth weighing. They match on 1 further specification as well.
Frequently asked questions
Do the AMD Ryzen 5 8640U and Intel Core i5-1335U differ on performance cores?
Yes. Performance Cores reads 6 on the AMD Ryzen 5 8640U versus 2 on the Intel Core i5-1335U.
Is the SMT Enabled the same on the AMD Ryzen 5 8640U and Intel Core i5-1335U?
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 5 8640U
- Laptop
- Intel Core i5-1335U
- Laptop
Codename
- AMD Ryzen 5 8640U
- Hawk Point
- Intel Core i5-1335U
- Raptor Lake
Release Year
- AMD Ryzen 5 8640U
- 2023
- Intel Core i5-1335U
- 2023
TDP
- AMD Ryzen 5 8640U
- 28 W
- Intel Core i5-1335U
- 15 W
iGPU
- AMD Ryzen 5 8640U
- AMD Radeon 740M/760M/780M Graphics (RDNA 3)
- Intel Core i5-1335U
- Intel Iris Xe Graphics
Market Segment
- AMD Ryzen 5 8640U
- Laptop
- Intel Core i5-1335U
- Laptop
Microarchitecture
- AMD Ryzen 5 8640U
- Zen 4 (Phoenix/Hawk Point)
- Intel Core i5-1335U
- Raptor Lake
Socket
- AMD Ryzen 5 8640U
- BGA (soldered, mobile)
- Intel Core i5-1335U
- BGA 1744
Process Node
- AMD Ryzen 5 8640U
- 4 nm
- Intel Core i5-1335U
- 7 nm
Total Cores
- AMD Ryzen 5 8640U
- 6
- Intel Core i5-1335U
- 10Best
Performance Cores
- AMD Ryzen 5 8640U
- 6Best
- Intel Core i5-1335U
- 2
Efficiency Cores
- AMD Ryzen 5 8640U
- 0
- Intel Core i5-1335U
- 8Best
Total Threads
- AMD Ryzen 5 8640U
- 12
- Intel Core i5-1335U
- 12
SMT Enabled
- AMD Ryzen 5 8640U
- Yes
- Intel Core i5-1335U
- Yes
P-Core Base Clock
- AMD Ryzen 5 8640U
- 1.7 GHz
- Intel Core i5-1335U
- 1.3 GHz
P-Core Boost Clock
- AMD Ryzen 5 8640U
- 4.9 GHz
- Intel Core i5-1335U
- 4.6 GHz
L3 Cache
- AMD Ryzen 5 8640U
- 16 MBBest
- Intel Core i5-1335U
- 12 MB-25%
Base Power
- AMD Ryzen 5 8640U
- 28 W
- Intel Core i5-1335U
- 15 W
Memory Type
- AMD Ryzen 5 8640U
- DDR5, LPDDR5x
- Intel Core i5-1335U
- DDR5, DDR4, LPDDR5/x, LPDDR4x
Integrated Graphics
- AMD Ryzen 5 8640U
- Yes
- Intel Core i5-1335U
- Yes
Which one should you pick?
Choose 8640U if you want the higher L3 cache (16 MB vs 12 MB).
Choose 1335U 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.
Intel Core i5-1335U
7.7 / 10 Expert Rating
The Intel Core i5-1335U prioritizes battery life and portability, fitting thin business and everyday laptops.




