Ryzen 5 8400F vs Phenom II X4 955 (95W)

#ad 
Buy on Amazon
VS

Primary details

Comparing Phenom II X4 955 (95W) and Ryzen 5 8400F processor market type (desktop or notebook), architecture, sales start time and price.

Place in the rankingnot rated457
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data64.44
Market segmentDesktop processorDesktop processor
Power efficiencyno data22.28
Architecture codenameDeneb (2009−2011)Phoenix (2023−2024)
Release date1 April 2009 (15 years ago)1 April 2024 (less than a year ago)
Launch price (MSRP)no data$170

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Phenom II X4 955 (95W) and Ryzen 5 8400F 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 speed3.2 GHz4.2 GHz
Boost clock speed3.2 GHz4.7 GHz
L1 cache128 KB (per core)64 KB (per core)
L2 cache512 KB (per core)1 MB (per core)
L3 cache6 MB (shared)16 MB (shared)
Chip lithography45 nm4 nm
Die size258 mm2178 mm2
Number of transistors758 million25,000 million
64 bit support++
Windows 11 compatibility-no data
Unlocked multiplier-+

Compatibility

Information on Phenom II X4 955 (95W) and Ryzen 5 8400F 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
SocketAM3AM5
Power consumption (TDP)95 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Phenom II X4 955 (95W) and Ryzen 5 8400F. 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 Phenom II X4 955 (95W) and Ryzen 5 8400F are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom II X4 955 (95W) and Ryzen 5 8400F. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardOn certain motherboards (Chipset feature)N/A

Peripherals

Specifications and connection of peripherals supported by Phenom II X4 955 (95W) and Ryzen 5 8400F.

PCIe version2.04.0
PCI Express lanesno data20

Pros & cons summary


Recency 1 April 2009 1 April 2024
Physical cores 4 6
Threads 4 12
Chip lithography 45 nm 4 nm
Power consumption (TDP) 95 Watt 65 Watt

Ryzen 5 8400F has an age advantage of 15 years, 50% more physical cores and 200% more threads, a 1025% more advanced lithography process, and 46.2% lower power consumption.

We couldn't decide between Phenom II X4 955 (95W) and Ryzen 5 8400F. We've got no test results to judge.


Should you still have questions on choice between Phenom II X4 955 (95W) and Ryzen 5 8400F, 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 Phenom II X4 955 (95W)
Phenom II X4 955 (95W)
AMD Ryzen 5 8400F
Ryzen 5 8400F

Similar processor comparisons

We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.

Community ratings

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


3.8 818 votes

Rate Phenom II X4 955 (95W) on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5
3.9 328 votes

Rate Ryzen 5 8400F on a scale of 1 to 5:

  • 1
  • 2
  • 3
  • 4
  • 5

Questions & comments

Here you can ask a question about Phenom II X4 955 (95W) or Ryzen 5 8400F, agree or disagree with our judgements, or report an error or mismatch.