Ryzen 9 7840HX vs i9-12900K

Primary details

Comparing Core i9-12900K and Ryzen 9 7840HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	191	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	37.31	no data
Market segment	Desktop processor	Laptop
Series	Intel Core i9	AMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency	19.75	no data
Architecture codename	Alder Lake, Golden Cove, Gracemont (2021)	Dragon Range-HX (Zen 4) (2023−2024)
Release date	4 November 2021 (3 years ago)	17 January 2024 (less than a year ago)
Launch price (MSRP)	$589	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Core i9-12900K 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	16 (Hexadeca-Core)	12 (Dodeca-Core)
Threads	24	24
Base clock speed	3.2 GHz	2.9 GHz
Boost clock speed	5.2 GHz	5.1 GHz
Bus type	DMI 4.0	no data
Bus rate	8 × 16 GT/s	no data
Multiplier	32	no data
L1 cache	80K (per core)	768 KB
L2 cache	1.25 MB (per core)	12 MB
L3 cache	30 MB (shared)	64 MB
Chip lithography	10 nm	5 nm
Die size	215.25 mm2"	no data
Maximum core temperature	100 °C	100 °C
Maximum case temperature (TCase)	72 °C	no data
Number of transistors	no data	9900 Million
64 bit support	+	+
Windows 11 compatibility	+	no data
Unlocked multiplier	+	-

Compatibility

Information on Core i9-12900K 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	FCLGA1700	FL1
Power consumption (TDP)	125 Watt	55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-12900K and Ryzen 9 7840HX. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2	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	+	+
vPro	+	no data
Enhanced SpeedStep (EIST)	+	no data
Speed Shift	+	no data
Turbo Boost Technology	2.0	no data
Hyper-Threading Technology	+	no data
Idle States	+	no data
Thermal Monitoring	+	-
SIPP	+	-
Turbo Boost Max 3.0	+	no data
Deep Learning Boost	+	-

Security technologies

Core i9-12900K and Ryzen 9 7840HX technologies aimed at improving security, for example, by protecting against hacks.

TXT	+	no data
EDB	+	no data
Secure Key	+	no data
OS Guard	+	no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-12900K and Ryzen 9 7840HX are enumerated here.

VT-d	+	no data
VT-x	+	no data
EPT	+	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-12900K and Ryzen 9 7840HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR4, DDR5	DDR5
Maximum memory size	128 GB	no data
Max memory channels	2	no data
Maximum memory bandwidth	76.805 GB/s	no data
ECC memory support	+	-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card Compare	Intel UHD Graphics 770	AMD Radeon 610M (400 - 2200 MHz)
Quick Sync Video	+	-
Clear Video HD	+	no data
Graphics max frequency	1.55 GHz	no data
Execution Units	32	no data

Graphics interfaces

Available interfaces and connections of Core i9-12900K and Ryzen 9 7840HX integrated GPUs.

Number of displays supported

4

no data

Graphics image quality

Maximum display resolutions supported by Core i9-12900K and Ryzen 9 7840HX integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096 x 2160 @ 60Hz	no data
Max resolution over eDP	5120 x 3200 @ 120Hz	no data
Max resolution over DisplayPort	7680 x 4320 @ 60Hz	no data

Graphics API support

APIs supported by Core i9-12900K and Ryzen 9 7840HX integrated GPUs, sometimes API versions are included.

DirectX	12	no data
OpenGL	4.5	no data

Peripherals

Specifications and connection of peripherals supported by Core i9-12900K and Ryzen 9 7840HX.

PCIe version	5.0 and 4.0	no data
PCI Express lanes	20	no data

Pros & cons summary

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Integrated graphics card	6.16	2.85
Recency	4 November 2021	17 January 2024
Physical cores	16	12
Chip lithography	10 nm	5 nm
Power consumption (TDP)	125 Watt	55 Watt

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Should you still have questions on choice between Core i9-12900K and Ryzen 9 7840HX, ask them in Comments section, and we shall answer.

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