i9-14900KF vs A8-3870K

VS

Aggregate performance score

A8-3870K
2011
4 cores / 4 threads, 100 Watt
1.47
Core i9-14900KF
2023
24 cores / 32 threads, 125 Watt
37.39
+2444%

Core i9-14900KF outperforms A8-3870K by a whopping 2444% based on our aggregate benchmark results.

Primary details

Comparing A8-3870K and Core i9-14900KF processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking217582
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data66.51
Market segmentDesktop processorDesktop processor
Power efficiency1.3928.29
Architecture codenameLlano (2011−2012)Raptor Lake-R (2023−2024)
Release date20 December 2011 (13 years ago)17 October 2023 (1 year ago)
Launch price (MSRP)no data$564

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

A8-3870K and Core i9-14900KF 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)24 (Tetracosa-Core)
Threads432
Base clock speed3 GHz3.2 GHz
Boost clock speed3 GHz5.8 GHz
L1 cache128 KB (per core)80 KB (per core)
L2 cache1 MB (per core)2 MB (per core)
L3 cache0 KB36 MB (shared)
Chip lithography32 nmIntel 7 nm
Die size228 mm2257 mm2
Maximum core temperatureno data100 °C
Number of transistors1,178 millionno data
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier++

Compatibility

Information on A8-3870K and Core i9-14900KF 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
SocketFM1FCLGA1700
Power consumption (TDP)100 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by A8-3870K and Core i9-14900KF. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI-+
AVX-+
Enhanced SpeedStep (EIST)no data+
Speed Shiftno data+
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data+
TSX-+
Idle Statesno data+
Thermal Monitoring-+
Turbo Boost Max 3.0no data+
Deep Learning Boost-+

Security technologies

A8-3870K and Core i9-14900KF technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDBno data+
Secure Keyno data+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by A8-3870K and Core i9-14900KF are enumerated here.

AMD-V+-
VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by A8-3870K and Core i9-14900KF. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5-5600, DDR4-3200
Maximum memory sizeno data192 GB
Max memory channelsno data2
Maximum memory bandwidthno data89.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon HD 6550DN/A

Peripherals

Specifications and connection of peripherals supported by A8-3870K and Core i9-14900KF.

PCIe versionno data5.0 and 4.0
PCI Express lanesno data16

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.

A8-3870K 1.47
i9-14900KF 37.39
+2444%

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.

A8-3870K 2328
i9-14900KF 59389
+2451%

Gaming performance

Pros & cons summary


Performance score 1.47 37.39
Recency 20 December 2011 17 October 2023
Physical cores 4 24
Threads 4 32
Power consumption (TDP) 100 Watt 125 Watt

A8-3870K has 25% lower power consumption.

i9-14900KF, on the other hand, has a 2443.5% higher aggregate performance score, an age advantage of 11 years, and 500% more physical cores and 700% more threads.

The Core i9-14900KF is our recommended choice as it beats the A8-3870K in performance tests.


Should you still have questions on choice between A8-3870K and Core i9-14900KF, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


AMD A8-3870K
A8-3870K
Intel Core i9-14900KF
Core i9-14900KF

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Community ratings

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Questions & comments

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