Ryzen 9 7840HX vs Sempron 3400+

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Primary details

Comparing Sempron 3400+ and Ryzen 9 7840HX processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot ratednot rated
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Seriesno dataAMD Dragon Range (Zen 4, Ryzen 7045)
Architecture codenamePalermo (2001−2005)Dragon Range-HX (Zen 4) (2023−2024)
Release date1 October 2005 (19 years ago)17 January 2024 (less than a year ago)
Launch price (MSRP)$30no data

Detailed specifications

Sempron 3400+ 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 cores1 (Single-Core)12 (Dodeca-Core)
Threads124
Base clock speedno data2.9 GHz
Boost clock speed2 GHz5.1 GHz
L1 cache128 KB768 KB
L2 cache128 KB12 MB
L3 cache0 KB64 MB
Chip lithography90 nm5 nm
Die size103 mm2no data
Maximum core temperatureno data100 °C
Number of transistors63 million9900 Million
64 bit support++
Windows 11 compatibility-no data

Compatibility

Information on Sempron 3400+ 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 configuration1no data
Socket939FL1
Power consumption (TDP)62 Watt55 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Sempron 3400+ and Ryzen 9 7840HX. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataMMX, 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 Sempron 3400+ and Ryzen 9 7840HX. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)AMD Radeon 610M

Pros & cons summary


Recency 1 October 2005 17 January 2024
Physical cores 1 12
Threads 1 24
Chip lithography 90 nm 5 nm
Power consumption (TDP) 62 Watt 55 Watt

Ryzen 9 7840HX has an age advantage of 18 years, 1100% more physical cores and 2300% more threads, a 1700% more advanced lithography process, and 12.7% lower power consumption.

We couldn't decide between Sempron 3400+ and Ryzen 9 7840HX. We've got no test results to judge.

Note that Sempron 3400+ is a desktop processor while Ryzen 9 7840HX is a notebook one.


Should you still have questions on choice between Sempron 3400+ and Ryzen 9 7840HX, ask them in Comments section, and we shall answer.

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AMD Sempron 3400+
Sempron 3400+
AMD Ryzen 9 7840HX
Ryzen 9 7840HX

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