Ryzen 9 7840HX vs Ryzen 9 5900X

Primary details

Comparing Ryzen 9 5900X and Ryzen 9 7840HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	206	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	32.26	no data
Market segment	Desktop processor	Laptop
Series	AMD Ryzen 9	AMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency	22.18	no data
Architecture codename	Vermeer (Zen3) (2020−2022)	Dragon Range-HX (Zen 4) (2023−2024)
Release date	5 November 2020 (4 years ago)	17 January 2024 (less than a year ago)
Launch price (MSRP)	$549	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Ryzen 9 5900X and Ryzen 9 7840HX 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	12 (Dodeca-Core)	12 (Dodeca-Core)
Threads	24	24
Base clock speed	3.7 GHz	2.9 GHz
Boost clock speed	4.8 GHz	5.1 GHz
Multiplier	37	no data
L1 cache	64K (per core)	768 KB
L2 cache	512K (per core)	12 MB
L3 cache	64 MB	64 MB
Chip lithography	7 nm, 12 nm	5 nm
Die size	2x 74 mm2(CCD) + 125 mm2 (IOD)	no data
Maximum core temperature	no data	100 °C
Maximum case temperature (TCase)	95 °C	no data
Number of transistors	0 Million	9900 Million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	-

Compatibility

Information on Ryzen 9 5900X and Ryzen 9 7840HX 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	no data
Socket	AM4	FL1
Power consumption (TDP)	105 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 5900X and Ryzen 9 7840HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2	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	-	+
AVX	+	+
Precision Boost 2	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 5900X and Ryzen 9 7840HX are enumerated here.

AMD-V

+

-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 5900X and Ryzen 9 7840HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4-3200	DDR5
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	51.196 GB/s	no data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

-

AMD Radeon 610M (400 - 2200 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 5900X and Ryzen 9 7840HX.

PCIe version

4.0

no data

Pros & cons summary

---

Recency	5 November 2020	17 January 2024
Chip lithography	7 nm	5 nm
Power consumption (TDP)	105 Watt	55 Watt

---

Should you still have questions on choice between Ryzen 9 5900X and Ryzen 9 7840HX, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.

---