AMD Ryzen 7 5800X vs AMD FX-8120. Specifications, performance, tests

Background information about the processors being compared, series, generation and market segment.

• CPU group
  AMD Ryzen 5000 AMD FX-8000
• Family
  Ryzen FX-Series
• Form Factor
  Desktops / Boxed Processor Desktops
• Generation
  4 2
• Predecessor
  AMD Ryzen 7 3800X -
• Segment
  Desktop Desktop / Server
• Series
  Ryzen 5000 Series FX 8-Core Black Edition Processors

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

• Base Frequency
  3.8 GHz 3.1 GHz
• Core architecture
  normal normal
• CPU Cores
  8 8
• CPU Threads
  16 8
• Hyperthreading / SMT
  Yes No
• Max. Boost Clock
  4.7 GHz 4 GHz
• Overclocking
  Yes Yes
• Turbo Frequency (1 Core)
  4.7 GHz 4 GHz
• Turbo Frequency (8 Cores)
  4.4 GHz 4 GHz

Internal Graphics does not affect the performance of the CPU, performs the work of the graphics card in its absence or on mobile devices.

• GPU name
  None None
• GPU Turbo
  - No turbo

Built-in codecs used to encode and decode content. Significantly speeds up the required operations.

• AV1
  No No
• H.264 / AVC
  No No
• h265 / HEVC (8 bit)
  No No
• h265 / HEVC (10 bit)
  No No
• JPEG
  No No
• VC-1
  No No
• VP8
  No No
• VP9
  No No

Types, channel quantity of RAM supported by AMD FX-8120 and AMD Ryzen 7 5800X. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  Yes Yes
• Max. Memory
  128 GB -
• Memory channels
  2 2
• Memory type
  DDR4 Not Listed
• PCIe
  PCIe 4.0 -
• PCIe lanes
  20 -
• PCIe version
  4.0 -
• System Memory Specification
  3200 -

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 7 5800X and AMD FX-8120 Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• Default TDP
  105 W 125 W
• Maximum Operating Temperature
  90 °C 61 °C
• TDP (PL1, legacy label)
  105 W 95 W

Architecture, interfaces, additional instructions supported by AMD Ryzen 7 5800X and AMD FX-8120, virtual machine technologies and process technology.

• Architecture
  Vermeer (Zen 3) Vishera (Bulldozer)
• Codename
  Vermeer FX Legacy
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4.1, SSE4.2, AVX, FMA3, FMA4
• L2-Cache
  4 MB 8 MB
• L3-Cache
  32 MB 8 MB
• Release date
  2020-11-05 Q2/2012
• Socket
  AM4 AM3+
• Technology
  TSMC 7nm FinFET 32nm
• Virtualization
  AMD-V, SVM AMD-V
• L1-Cache
  - 0.375 MB
• Manufacturer product ID (boxed)
  - FD8120FRGUBOX
• Manufacturer product ID (tray)
  - FD8120FRW8KGU