AMD Ryzen 5 8640U vs AMD Ryzen 5 7640U

Comparative analysis of AMD Ryzen 5 8640U and AMD Ryzen 5 7640U processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.

AMD Ryzen 5 8640U

AMD Ryzen 5 7640U

Differences

Reasons to consider the AMD Ryzen 5 8640U

CPU is newer: launch date 11 month(s) later
1048576x more L2 cache, more data can be stored in the L2 cache for quick access later
1048576x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 1% better performance in PassMark - Single thread mark: 3547 vs 3524

Specifications (specs)
Launch date	6 Dec 2023 vs Jan 2023
L2 cache	1 MB (per core) vs 1MB (per core)
L3 cache	16 MB (shared) vs 16MB (shared)
Benchmarks
PassMark - Single thread mark	3547 vs 3524

Reasons to consider the AMD Ryzen 5 7640U

Around 87% lower typical power consumption: 15 Watt vs 28 Watt
Around 1% better performance in PassMark - CPU mark: 21284 vs 20971

Specifications (specs)
Thermal Design Power (TDP)	15 Watt vs 28 Watt
Benchmarks
PassMark - CPU mark	21284 vs 20971

Compare benchmarks

CPU 1: AMD Ryzen 5 8640U
CPU 2: AMD Ryzen 5 7640U

PassMark - Single thread mark

CPU 1

CPU 2

3547

3524

PassMark - CPU mark

CPU 1

CPU 2

20971

21284

Name	AMD Ryzen 5 8640U	AMD Ryzen 5 7640U
PassMark - Single thread mark	3547	3524
PassMark - CPU mark	20971	21284

Compare specifications (specs)

	AMD Ryzen 5 8640U	AMD Ryzen 5 7640U
Essentials
Launch date	6 Dec 2023	Jan 2023
Place in performance rating	346	350
Performance
Base frequency	3.5 GHz	3.5 GHz
Die size	178 mm²	178 mm²
L1 cache	64 KB (per core)	64K (per core)
L2 cache	1 MB (per core)	1MB (per core)
L3 cache	16 MB (shared)	16MB (shared)
Manufacturing process technology	4 nm	4 nm
Maximum core temperature	100°C	100°C
Maximum frequency	4.9 GHz	4.9 GHz
Number of cores	6	6
Number of threads	12	12
Transistor count	25,000 million	25,000 million
Unlocked
Memory
ECC memory support
Supported memory types	DDR5	DDR5-5600 MHz, Dual-channel
Compatibility
Configurable TDP	15-30 Watt	28 Watt
Max number of CPUs in a configuration	1	1
Sockets supported	FP8	FP8
Thermal Design Power (TDP)	28 Watt	15 Watt
Peripherals
PCIe configurations	Gen 4, 20 Lanes, (CPU only)	Gen 4, 20 Lanes, (CPU only)