Ryzen 9 5900XT vs Ryzen 9 6900HX

Primary details

Comparing Ryzen 9 6900HX and Ryzen 9 5900XT processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	448	169
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	no data	70.18
Market segment	Laptop	Desktop processor
Series	AMD Rembrandt (Zen 3+)	no data
Power efficiency	32.68	25.09
Architecture codename	Rembrandt-H (Zen 3+) (2022)	Vermeer (2020−2024)
Release date	January 2022 (2 years ago)	31 July 2024 (less than a year ago)
Launch price (MSRP)	no data	$349

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen 9 6900HX and Ryzen 9 5900XT 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)	16 (Hexadeca-Core)
Threads	16	32
Base clock speed	3.3 GHz	3.3 GHz
Boost clock speed	4.9 GHz	4.8 GHz
L1 cache	64K (per core)	64 KB (per core)
L2 cache	512K (per core)	512 KB (per core)
L3 cache	16 MB (shared)	64 MB
Chip lithography	6 nm	7 nm
Die size	208 mm2	2x 74 mm2
Maximum core temperature	95 °C	no data
Number of transistors	no data	8,300 million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	+

Compatibility

Information on Ryzen 9 6900HX and Ryzen 9 5900XT 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	AM4
Power consumption (TDP)	45 Watt	105 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 6900HX and Ryzen 9 5900XT. You'll probably need this information if you require some particular technology.

Instruction set extensions	MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA	no data
AES-NI	+	+
AVX	+	+
Precision Boost 2	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 6900HX and Ryzen 9 5900XT are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 6900HX and Ryzen 9 5900XT. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR5

DDR4

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

AMD Radeon 680M ( - 2400 MHz)

N/A

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 6900HX and Ryzen 9 5900XT.

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.

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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.

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Pros & cons summary

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Performance score	15.54	27.84
Physical cores	8	16
Threads	16	32
Chip lithography	6 nm	7 nm
Power consumption (TDP)	45 Watt	105 Watt

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Should you still have questions on choice between Ryzen 9 6900HX and Ryzen 9 5900XT, ask them in Comments section, and we shall answer.

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