Ryzen 7 PRO 8840U 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
Ryzen 7 PRO 8840U
2024
8 cores / 16 threads, 28 Watt
15.38
+6052%

Ryzen 7 PRO 8840U outperforms Athlon 64 FX-55 by a whopping 6052% based on our aggregate benchmark results.

Primary details

Comparing Athlon 64 FX-55 and Ryzen 7 PRO 8840U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking3163454
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorServer
Power efficiency0.2351.98
Architecture codenameClawhammer (2001−2005)Hawk Point (2024)
Release date10 October 2004 (20 years ago)16 April 2024 (less than a year ago)
Launch price (MSRP)$180no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Athlon 64 FX-55 and Ryzen 7 PRO 8840U 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)8 (Octa-Core)
Threads116
Base clock speed2.6 GHz3.3 GHz
Boost clock speed2.6 GHz5.1 GHz
L1 cache128 KB64 KB (per core)
L2 cache1 MB1 MB (per core)
L3 cache0 KB16 MB (shared)
Chip lithography130 nm4 nm
Die size193 mm2178 mm2
Maximum case temperature (TCase)63 °Cno data
Number of transistors105 million25,000 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier+-

Compatibility

Information on Athlon 64 FX-55 and Ryzen 7 PRO 8840U 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
Socket939FP7
Power consumption (TDP)104 Watt28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Athlon 64 FX-55 and Ryzen 7 PRO 8840U. You'll probably need this information if you require some particular technology.

AES-NI-+
AVX-+
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Athlon 64 FX-55 and Ryzen 7 PRO 8840U are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon 64 FX-55 and Ryzen 7 PRO 8840U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR1 Depends on motherboardDDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)AMD Radeon 780M

Peripherals

Specifications and connection of peripherals supported by Athlon 64 FX-55 and Ryzen 7 PRO 8840U.

PCIe versionno data4.0
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.

Athlon 64 FX-55 0.25
Ryzen 7 PRO 8840U 15.38
+6052%

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
Ryzen 7 PRO 8840U 24431
+5947%

Gaming performance

Pros & cons summary


Performance score 0.25 15.38
Recency 10 October 2004 16 April 2024
Physical cores 1 8
Threads 1 16
Chip lithography 130 nm 4 nm
Power consumption (TDP) 104 Watt 28 Watt

Ryzen 7 PRO 8840U has a 6052% higher aggregate performance score, an age advantage of 19 years, 700% more physical cores and 1500% more threads, a 3150% more advanced lithography process, and 271.4% lower power consumption.

The Ryzen 7 PRO 8840U is our recommended choice as it beats the Athlon 64 FX-55 in performance tests.

Note that Athlon 64 FX-55 is a desktop processor while Ryzen 7 PRO 8840U is a server/workstation one.


Should you still have questions on choice between Athlon 64 FX-55 and Ryzen 7 PRO 8840U, 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 Athlon 64 FX-55
Athlon 64 FX-55
AMD Ryzen 7 PRO 8840U
Ryzen 7 PRO 8840U

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.7 3 votes

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Questions & comments

Here you can ask a question about Athlon 64 FX-55 or Ryzen 7 PRO 8840U, agree or disagree with our judgements, or report an error or mismatch.