AMD Ryzen 5 7645HX vs AMD Ryzen 9 7845HX

Comparative analysis of AMD Ryzen 5 7645HX and AMD Ryzen 9 7845HX 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, 3DMark Fire Strike - Physics Score.

AMD Ryzen 5 7645HX

AMD Ryzen 9 7845HX

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 9 7845HX

Processor is unlocked, an unlocked multiplier allows for easier overclocking
6 more cores, run more applications at once: 12 vs 6
12 more threads: 24 vs 12
Around 4% higher clock speed: 5.2 GHz vs 5 GHz
2x more L1 cache, more data can be stored in the L1 cache for quick access later
2x more L2 cache, more data can be stored in the L2 cache for quick access later
2x more L3 cache, more data can be stored in the L3 cache for quick access later
Around 2% better performance in PassMark - Single thread mark: 3985 vs 3915
Around 71% better performance in PassMark - CPU mark: 45916 vs 26868

Specifications (specs)
Unlocked	Unlocked vs Locked
Number of cores	12 vs 6
Number of threads	24 vs 12
Maximum frequency	5.2 GHz vs 5 GHz
L1 cache	64K (per core) vs 64K (per core)
L2 cache	1MB (per core) vs 1MB (per core)
L3 cache	64MB (shared) vs 32MB (shared)
Benchmarks
PassMark - Single thread mark	3985 vs 3915
PassMark - CPU mark	45916 vs 26868

Compare benchmarks

CPU 1: AMD Ryzen 5 7645HX
CPU 2: AMD Ryzen 9 7845HX

PassMark - Single thread mark

CPU 1

CPU 2

3915

3985

PassMark - CPU mark

CPU 1

CPU 2

26868

45916

Name	AMD Ryzen 5 7645HX	AMD Ryzen 9 7845HX
PassMark - Single thread mark	3915	3985
PassMark - CPU mark	26868	45916
3DMark Fire Strike - Physics Score		11567

Compare specifications (specs)

	AMD Ryzen 5 7645HX	AMD Ryzen 9 7845HX
Essentials
Launch date	4 Jan 2023	4 Jan 2023
Place in performance rating	154	182
Architecture codename		Zen 4
Family		Dragon Range
Performance
Base frequency	4 GHz	3 GHz
Die size	71 mm²	2x 71 mm²
L1 cache	64K (per core)	64K (per core)
L2 cache	1MB (per core)	1MB (per core)
L3 cache	32MB (shared)	64MB (shared)
Manufacturing process technology	5 nm	5 nm
Maximum core temperature	100°C	100°C
Maximum frequency	5 GHz	5.2 GHz
Number of cores	6	12
Number of threads	12	24
Transistor count	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
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)