Ryzen 9 7840HX vs Ryzen 9 7940HX

Primary details

Comparing Ryzen 9 7940HX and Ryzen 9 7840HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking113not rated
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesAMD Dragon Range (Zen 4, Ryzen 7045)AMD Dragon Range (Zen 4, Ryzen 7045)
Power efficiency58.26no data
Architecture codenameDragon Range-HX (Zen 4) (2023−2024)Dragon Range-HX (Zen 4) (2023−2024)
Release date17 January 2024 (less than a year ago)17 January 2024 (less than a year ago)

Detailed specifications

Ryzen 9 7940HX 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 cores16 (Hexadeca-Core)12 (Dodeca-Core)
Threads3224
Base clock speed2.4 GHz2.9 GHz
Boost clock speed5.2 GHz5.1 GHz
L1 cache1 MB768 KB
L2 cache16 MB12 MB
L3 cache64 MB64 MB
Chip lithography5 nm5 nm
Maximum core temperature100 °C100 °C
Number of transistors9900 Million9900 Million
64 bit support++

Compatibility

Information on Ryzen 9 7940HX 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.

SocketFL1FL1
Power consumption (TDP)55 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7940HX and Ryzen 9 7840HX. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, 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, SMEMMX, 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++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7940HX and Ryzen 9 7840HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon 610MAMD Radeon 610M

Pros & cons summary


Physical cores 16 12
Threads 32 24

Ryzen 9 7940HX has 33.3% more physical cores and 33.3% more threads.

We couldn't decide between Ryzen 9 7940HX and Ryzen 9 7840HX. We've got no test results to judge.


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AMD Ryzen 9 7940HX
Ryzen 9 7940HX
AMD Ryzen 9 7840HX
Ryzen 9 7840HX

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