Home/Processors/AMD Ryzen 5 8640U
AMD Ryzen 5 8640U
AMD Laptop CPU

AMD Ryzen 5 8640U

56B
Cores6
Threads12
Boost Clock4.9 GHz
TDP15-30 W (configurable)
SocketFP8
Process4 nm
⇄ Compare with…

Benchmarks

Perf.50
iGPU65
Energy76
Cinebench 2024 Single-Core103
Cinebench 2024 Multi-Core611
TDP15-30 W
Cache L316MB
Cinebench 2024 (Single)103
Cinebench 2024 (Multi)611
Geekbench 6 (Single-Core)2519
Geekbench 6 (Multi-Core)10,308
Passmark CPU (Single-Core)3459
Passmark CPU (Multi-Core)19,989
iGPU FLOPS2.7 TFLOPS

Full specifications

GeekBench v6

File compression
1080 MB/sec
Clang compilation
71 Klines/sec
HTML 5 Browser
226.5 pages/sec
PDF Renderer
260.8 Mpixels/sec
Text processing
259.8 pages/sec
Background blur
48.1 images/sec
Photo processing
94.5 images/sec
Ray tracing
15.5 Mpixels/sec

PassMark

Integer math
66.4 GOps/sec
Floating point math
39.6 GOps/sec
Find prime numbers
68M Primes/sec
Random string sorting
27.7M Strings/sec
Data encryption
13.7 GBytes/sec
Data compression
226.7 MBytes/sec
Physics
1015 Frames/sec
Extended instructions
16.4B Matrices/sec

Performance Per Watt

Cinebench 2024 / Watt
20.4 PPW
Geekbench 6 Multi / Watt
343.6 PPW
Passmark CPU Mark / Watt
666.3 PPW

General

Vendor
Amd
Released
December 6, 2023
Type
Laptop
Instruction Set
x86-64
Codename
Zen 4 (Hawk Point)
Integrated GPU
Radeon 760M
Intel Equivalent
- Intel Core Ultra 7 155U

CPU

P-Cores
6
P-Threads
12
Base Frequency (P)
3.5 GHz
Turbo Boost Frequency (P)
4.9 GHz
Total Cores
6
Total Threads
12
Bus Frequency
100 MHz
Multiplier
35x
L1 Cache
64K (per core)
L2 Cache
1MB (per core)
L3 Cache
16MB (shared)
Unlocked Multiplier
No

Package

Transistors
25 billions
Fabrication Process
4 nm
TDP (PL1)
15-30 W (configurable)
Socket
FP8
Peak Temperature
100°C

iGPU

Integrated Graphics
Radeon 760M
GPU Base Clock
800 MHz
GPU Boost Clock
2600 MHz
Shading Units
512
TMUs
32
ROPs
16
Execution Units
8
TGP
15 W

Memory Support

Memory Types
- DDR5-5600 / - LPDDR5x-7500
Max. Memory Size
256 GB
Memory Channels
2
ECC Support
No

Misc

Official Site
AMD Ryzen 5 8640U official page
PCI Express Version
4.0
PCI Express Lanes
20
Technologies
- Compute: AVX-512, BMI1, BMI2, F16C, SHA, XDNA2 - Performance: Precision Boost 2, SMT - Virtualization: AMD-V - Security: EVP, NX-Bit, SMAP, SMEP

Specifications compiled from NanoReview. Last updated 2026-09-29.

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