AMD Ryzen 5 7645HX vs AMD Ryzen 7 7745HX

Comparative analysis of AMD Ryzen 5 7645HX and AMD Ryzen 7 7745HX 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 7645HX

AMD Ryzen 7 7745HX

Differences

Reasons to consider the AMD Ryzen 5 7645HX

Around 22% lower typical power consumption: 45 Watt vs 55 Watt

Thermal Design Power (TDP)	45 Watt vs 55 Watt

Reasons to consider the AMD Ryzen 7 7745HX

Processor is unlocked, an unlocked multiplier allows for easier overclocking
2 more cores, run more applications at once: 8 vs 6
4 more threads: 16 vs 12
Around 2% higher clock speed: 5.1 GHz vs 5 GHz
Around 33% more L1 cache; more data can be stored in the L1 cache for quick access later
Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
Around 1% better performance in PassMark - Single thread mark: 3959 vs 3915
Around 22% better performance in PassMark - CPU mark: 32838 vs 26868

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	8 vs 6
Number of threads	16 vs 12
Maximum frequency	5.1 GHz vs 5 GHz
L1 cache	64K (per core) vs 64K (per core)
L2 cache	1MB (per core) vs 1MB (per core)
Benchmarks
PassMark - Single thread mark	3959 vs 3915
PassMark - CPU mark	32838 vs 26868

Compare benchmarks

CPU 1: AMD Ryzen 5 7645HX
CPU 2: AMD Ryzen 7 7745HX

PassMark - Single thread mark

CPU 1

CPU 2

3915

3959

PassMark - CPU mark

CPU 1

CPU 2

26868

32838

Name	AMD Ryzen 5 7645HX	AMD Ryzen 7 7745HX
PassMark - Single thread mark	3915	3959
PassMark - CPU mark	26868	32838

Compare specifications (specs)

	AMD Ryzen 5 7645HX	AMD Ryzen 7 7745HX
Essentials
Launch date	4 Jan 2023	4 Jan 2023
Place in performance rating	154	123
Architecture codename		Zen 4 (Dragon Range)
Performance
Base frequency	4 GHz	3.6 GHz
Die size	71 mm²	71 mm²
L1 cache	64K (per core)	64K (per core)
L2 cache	1MB (per core)	1MB (per core)
L3 cache	32MB (shared)	32MB (shared)
Manufacturing process technology	5 nm	5 nm
Maximum core temperature	100°C	100°C
Maximum frequency	5 GHz	5.1 GHz
Number of cores	6	8
Number of threads	12	16
Transistor count	6,570 million	6,570 million
Unlocked
Memory
ECC memory support
Supported memory types	DDR5-5200 MHz, Dual-channel	DDR5-5200 MHz, Dual-channel
Compatibility
Configurable TDP	75 Watt	45-75 Watt
Max number of CPUs in a configuration	1	1
Sockets supported	FL1	FL1
Thermal Design Power (TDP)	45 Watt	55 Watt
Peripherals
PCIe configurations	Gen 5, 28 Lanes, (CPU only)	Gen 5, 28 Lanes, (CPU only)