Ryzen 9 7945HX vs EPYC 7773X

Primary details

Comparing EPYC 7773X and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	16	90
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	17.21	no data
Market segment	Server	Laptop
Architecture codename	Milan-X (2022)	Dragon Range-HX (Zen 4)
Release date	22 March 2022 (2 years ago)	4 January 2023 (1 year ago)
Current price	$1950	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

EPYC 7773X and Ryzen 9 7945HX 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	64 (Tetrahexaconta-Core)	16 (Hexadeca-Core)
Threads	128	32
Base clock speed	2.2 GHz	2.5 GHz
Boost clock speed	3.5 GHz	5.4 GHz
L1 cache	64K (per core)	64K (per core)
L2 cache	512K (per core)	1 MB (per core)
L3 cache	768 MB (shared)	64 MB (shared)
Chip lithography	7 nm	CCD = 5 nm, I/O = 6 nm
Die size	8x 81 mm2	2x 71 mm2
Maximum core temperature	no data	100 °C
Number of transistors	33,200 million	13,140 million
64 bit support	-	+
Windows 11 compatibility	no data	+
Unlocked multiplier	No	Yes

Compatibility

Information on EPYC 7773X and Ryzen 9 7945HX 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	2	1
Socket	SP3	FL1
Power consumption (TDP)	280 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by EPYC 7773X and Ryzen 9 7945HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	DDR5-5200 RAM, PCIe 5, 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
AES-NI	+	+
FMA	no data	+
AVX	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by EPYC 7773X and Ryzen 9 7945HX are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by EPYC 7773X and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR4-3200

DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon 610M

Peripherals

Specifications and connection of peripherals supported by EPYC 7773X and Ryzen 9 7945HX.

PCIe version	4.0	5.0
PCI Express lanes	128	28

Synthetic benchmark performance

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

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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.

EPYC 7773X outperforms Ryzen 9 7945HX by 67% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	59.15	35.38
Recency	22 March 2022	4 January 2023
Physical cores	64	16
Threads	128	32
Power consumption (TDP)	280 Watt	55 Watt

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Should you still have questions on choice between EPYC 7773X and Ryzen 9 7945HX, ask them in Comments section, and we shall answer.

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