i9-14900K vs Athlon 64 FX-55

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Aggregate performance score

Athlon 64 FX-55
2004
1 core / 1 thread, 104 Watt
0.25
Core i9-14900K
2023
24 cores / 32 threads, 125 Watt
37.75
+15000%

Core i9-14900K outperforms Athlon 64 FX-55 by a whopping 15000% based on our aggregate benchmark results.

Primary details

Comparing Athlon 64 FX-55 and Core i9-14900K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking316380
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data64.60
Market segmentDesktop processorDesktop processor
Power efficiency0.2328.56
Architecture codenameClawhammer (2001−2005)Raptor Lake-R (2023−2024)
Release date10 October 2004 (20 years ago)17 October 2023 (1 year ago)
Launch price (MSRP)$180$589

Cost-effectiveness evaluation

Performance per price, higher is better.

Athlon 64 FX-55 and i9-14900K have a nearly equal value for money.

Detailed specifications

Athlon 64 FX-55 and Core i9-14900K 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)24 (Tetracosa-Core)
Performance-coresno data8
Efficient-coresno data16
Threads132
Base clock speed2.6 GHz3.2 GHz
Boost clock speed2.6 GHz5.8 GHz
L1 cache128 KB80 KB (per core)
L2 cache1 MB2 MB (per core)
L3 cache0 KB36 MB (shared)
Chip lithography130 nmIntel 7 nm
Die size193 mm2257 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)63 °Cno data
Number of transistors105 millionno data
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier++

Compatibility

Information on Athlon 64 FX-55 and Core i9-14900K 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
Socket939FCLGA1700
Power consumption (TDP)104 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon 64 FX-55 and Core i9-14900K. 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-+
SIPP-+
Turbo Boost Max 3.0no data+
Deep Learning Boost-+

Security technologies

Athlon 64 FX-55 and Core i9-14900K 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 Athlon 64 FX-55 and Core i9-14900K are enumerated here.

VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon 64 FX-55 and Core i9-14900K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1 Depends on motherboardDDR4, DDR5
Maximum memory sizeno data192 GB
Max memory channelsno data2
Maximum memory bandwidthno data89.6 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)Intel UHD Graphics 770
Quick Sync Video-+
Clear Video HDno data+
Graphics max frequencyno data1.65 GHz
Execution Unitsno data32

Graphics interfaces

Available interfaces and connections of Athlon 64 FX-55 and Core i9-14900K integrated GPUs.

Number of displays supportedno data4

Graphics image quality

Maximum display resolutions supported by Athlon 64 FX-55 and Core i9-14900K integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data4096 x 2160 @ 60Hz
Max resolution over eDPno data5120 x 3200 @ 120Hz
Max resolution over DisplayPortno data7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Athlon 64 FX-55 and Core i9-14900K integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Athlon 64 FX-55 and Core i9-14900K.

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.

Athlon 64 FX-55 0.25
i9-14900K 37.75
+15000%

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.

Athlon 64 FX-55 404
i9-14900K 59966
+14743%

Gaming performance

Pros & cons summary


Performance score 0.25 37.75
Recency 10 October 2004 17 October 2023
Physical cores 1 24
Threads 1 32
Power consumption (TDP) 104 Watt 125 Watt

Athlon 64 FX-55 has 20.2% lower power consumption.

i9-14900K, on the other hand, has a 15000% higher aggregate performance score, an age advantage of 19 years, and 2300% more physical cores and 3100% more threads.

The Core i9-14900K is our recommended choice as it beats the Athlon 64 FX-55 in performance tests.


Should you still have questions on choice between Athlon 64 FX-55 and Core i9-14900K, ask them in Comments section, and we shall answer.

Vote for your favorite

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AMD Athlon 64 FX-55
Athlon 64 FX-55
Intel Core i9-14900K
Core i9-14900K

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Community ratings

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Questions & comments

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