Ryzen 5 8645HS vs Ryzen 5 6600HS

Place in performance ranking	587	450
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Laptop
Architecture codename	Rembrandt-HS (Zen 3+)	Hawk Point-HS (Zen 4)
Release date	January 2022 (2 years ago)	6 December 2023 (less than a year ago)

Detailed specifications

Ryzen 5 6600HS and Ryzen 5 8645HS basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores	6 (Hexa-Core)	6 (Hexa-Core)
Threads	12	12
Base clock speed	3.3 GHz	4.3 GHz
Boost clock speed	4.5 GHz	5 GHz
L1 cache	64K (per core)	64 KB (per core)
L2 cache	512K (per core)	1 MB (per core)
L3 cache	16 MB (shared)	16 MB (shared)
Chip lithography	6 nm	4 nm
Die size	208 mm²	178 mm²
Maximum core temperature	95 °C	100 °C
Number of transistors	no data	25,000 million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	No	No

Compatibility

Information on Ryzen 5 6600HS and Ryzen 5 8645HS compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	1
Socket	FP7	FP8
Power consumption (TDP)	35 Watt	45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 5 6600HS and Ryzen 5 8645HS. You'll probably need this information if you require some particular technology.

Instruction set extensions	DDR5-4800/LPDDR5-6400 RAM (incl. ECC), PCIe 4, MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA	DDR5-5600/LPDDR5x-7500 RAM, PCIe 4, Ryzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI	+	+
AVX	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 5 6600HS and Ryzen 5 8645HS are enumerated here.

AMD-V

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 5 6600HS and Ryzen 5 8645HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare

AMD Radeon 660M

AMD Radeon 760M

Peripherals

Specifications and connection of peripherals supported by Ryzen 5 6600HS and Ryzen 5 8645HS.

PCIe version	4.0	4.0
PCI Express lanes	20	20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Ryzen 5 6600HS 12.27

Ryzen 5 8645HS 14.76
+20.3%

Ryzen 5 8645HS outperforms Ryzen 5 6600HS by 20% based on our aggregate benchmark results.

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Benchmark coverage: 68%

Ryzen 5 6600HS 18975

Ryzen 5 8645HS 22837
+20.4%

Ryzen 5 8645HS outperforms Ryzen 5 6600HS by 20% in Passmark.