Ryzen 5 8645HS vs FX-4100

VS

Aggregate performance score

FX-4100
2011
4 cores / 4 threads, 95 Watt
1.65
Ryzen 5 8645HS
2023
6 cores / 12 threads, 45 Watt
14.47
+777%

Ryzen 5 8645HS outperforms FX-4100 by a whopping 777% based on our aggregate benchmark results.

Primary details

Comparing FX-4100 and Ryzen 5 8645HS processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2084498
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Power efficiency1.6430.41
Architecture codenameZambezi (2011−2012)Hawk Point-HS (Zen 4) (2023−2024)
Release date12 October 2011 (13 years ago)6 December 2023 (1 year ago)

Detailed specifications

FX-4100 and Ryzen 5 8645HS 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 cores4 (Quad-Core)6 (Hexa-Core)
Threads412
Base clock speed3.6 GHz4.3 GHz
Boost clock speed3.8 GHz5 GHz
L1 cache192 KB64 KB (per core)
L2 cache4096 KB1 MB (per core)
L3 cache8192 KB16 MB (shared)
Chip lithography32 nm4 nm
Die size315 mm2178 mm2
Maximum core temperature71 °C100 °C
Number of transistors1,200 million25,000 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier+-
P0 Vcore voltageMin: 1.1 V - Max: 1.4125 Vno data

Compatibility

Information on FX-4100 and Ryzen 5 8645HS 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 configuration11
SocketAM3+FP8
Power consumption (TDP)95 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by FX-4100 and Ryzen 5 8645HS. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataRyzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI++
FMA+-
AVX++
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by FX-4100 and Ryzen 5 8645HS are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by FX-4100 and Ryzen 5 8645HS. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataAMD Radeon 760M ( - 2600 MHz)

Peripherals

Specifications and connection of peripherals supported by FX-4100 and Ryzen 5 8645HS.

PCIe versionn/a4.0
PCI Express lanesno data20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


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.

FX-4100 1.65
Ryzen 5 8645HS 14.47
+777%

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

FX-4100 2617
Ryzen 5 8645HS 22980
+778%

Gaming performance

Pros & cons summary


Performance score 1.65 14.47
Recency 12 October 2011 6 December 2023
Physical cores 4 6
Threads 4 12
Chip lithography 32 nm 4 nm
Power consumption (TDP) 95 Watt 45 Watt

Ryzen 5 8645HS has a 777% higher aggregate performance score, an age advantage of 12 years, 50% more physical cores and 200% more threads, a 700% more advanced lithography process, and 111.1% lower power consumption.

The Ryzen 5 8645HS is our recommended choice as it beats the FX-4100 in performance tests.

Note that FX-4100 is a desktop processor while Ryzen 5 8645HS is a notebook one.


Should you still have questions on choice between FX-4100 and Ryzen 5 8645HS, ask them in Comments section, and we shall answer.

Vote for your favorite

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AMD FX-4100
FX-4100
AMD Ryzen 5 8645HS
Ryzen 5 8645HS

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Community ratings

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Questions & comments

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