Ryzen 7 7800X vs Ryzen 9 8945H

Primary details

Comparing Ryzen 9 8945H and Ryzen 7 7800X processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	302	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Laptop	Desktop processor
Series	AMD Hawk Point (Zen 4/4c, Ryzen 8040)	AMD Ryzen 7
Power efficiency	40.36	no data
Architecture codename	Hawk Point-HS (Zen 4) (2023−2024)	Zen 4
Release date	6 December 2023 (1 year ago)	no data

Detailed specifications

Ryzen 9 8945H and Ryzen 7 7800X 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	8 (Octa-Core)	8 (Octa-Core)
Threads	16	16
Base clock speed	4 GHz	4.2 GHz
Boost clock speed	5.2 GHz	5 GHz
L1 cache	512 KB	512 KB
L2 cache	8 MB	8 MB
L3 cache	16 MB	96 MB
Chip lithography	4 nm	5 nm, 6 nm
Die size	178 mm2	71+122 mm
Maximum core temperature	100 °C	no data
64 bit support	+	+
Unlocked multiplier	-	+

Compatibility

Information on Ryzen 9 8945H and Ryzen 7 7800X 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.

Socket	FP7/FP7r2/FP8	no data
Power consumption (TDP)	45 Watt	120 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 8945H and Ryzen 7 7800X. You'll probably need this information if you require some particular technology.

Instruction set extensions	Ryzen AI, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME	no data
AES-NI	+	-
FMA	+	-
AVX	+	-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 8945H and Ryzen 7 7800X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR5	no data
Maximum memory size	no data	128 GB

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

AMD Radeon 780M ( - 2800 MHz)

no data

Pros & cons summary

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Chip lithography	4 nm	5 nm
Power consumption (TDP)	45 Watt	120 Watt

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Should you still have questions on choice between Ryzen 9 8945H and Ryzen 7 7800X, ask them in Comments section, and we shall answer.

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