Ryzen 7 7840U vs FX-8120

Primary details

Comparing FX-8120 and Ryzen 7 7840U processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	1304	382
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	2.74	no data
Market segment	Desktop processor	Laptop
Series	no data	AMD Phoenix (Zen 4, Ryzen 7040)
Architecture codename	Zambezi (2011−2012)	Phoenix-U (Zen 4)
Release date	12 October 2011 (12 years ago)	May 2023 (1 year ago)
Current price	$68	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

FX-8120 and Ryzen 7 7840U 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)	8 (Octa-Core)
Threads	8	16
Base clock speed	3.1 GHz	3.3 GHz
Boost clock speed	4 GHz	5.1 GHz
L1 cache	384 KB	64K (per core)
L2 cache	8192 KB	1 MB (per core)
L3 cache	8192 KB	16 MB (shared)
Chip lithography	32 nm	4 nm
Die size	315 mm2	178 mm2
Maximum core temperature	61 °C	100 °C
Number of transistors	1,200 million	25,000 million
64 bit support	+	+
Windows 11 compatibility	-	+
Unlocked multiplier	Yes	No
P0 Vcore voltage	Min: 1.0125 V - Max: 1.4125 V	no data

Compatibility

Information on FX-8120 and Ryzen 7 7840U 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	AM3+	FP8
Power consumption (TDP)	125 Watt	28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by FX-8120 and Ryzen 7 7840U. You'll probably need this information if you require some particular technology.

AES-NI	+	+
FMA	+	no data
AVX	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by FX-8120 and Ryzen 7 7840U are enumerated here.

AMD-V

+

+

Memory specs

Types, maximum amount and channel quantity of RAM supported by FX-8120 and Ryzen 7 7840U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3

DDR5-5600

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

no data

AMD Radeon 780M

Peripherals

Specifications and connection of peripherals supported by FX-8120 and Ryzen 7 7840U.

PCIe version	n/a	4.0
PCI Express lanes	no data	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.

Ryzen 7 7840U outperforms FX-8120 by 280% based on our aggregate benchmark results.

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Pros & cons summary

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Performance score	4.26	16.17
Threads	8	16
Chip lithography	32 nm	4 nm
Power consumption (TDP)	125 Watt	28 Watt

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Should you still have questions on choice between FX-8120 and Ryzen 7 7840U, ask them in Comments section, and we shall answer.

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