AMD Ryzen 7 7800X3D vs AMD Ryzen 9 7900. Specifications, performance, tests

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

• CPU group
  AMD Ryzen 7000 AMD Ryzen 7000
• Family
  Ryzen Ryzen
• Form Factor
  Desktops / Boxed Processor Desktops / Boxed Processor
• Generation
  6 6
• Predecessor
  AMD Ryzen 7 5800X3D AMD Ryzen 9 5900
• Segment
  Desktop Desktop
• Series
  Ryzen 7000 Series Ryzen 7000 Series

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

• Base Frequency
  4.2 GHz 3.7 GHz
• Core architecture
  normal normal
• Core Configuration
  8x 12x
• CPU Cores
  8 12
• CPU Threads
  16 24
• Hyperthreading / SMT
  Yes Yes
• Max. Boost Clock
  5 GHz 5.4 GHz
• Overclocking
  Yes Yes
• Turbo Frequency (1 Core)
  5.6 GHz 5.4 GHz
• Turbo Frequency (8 Cores)
  5.4 GHz -
• Turbo Frequency (12 Cores)
  - 4.8 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.

• DirectX Version
  12 12
• Execution units
  2 2
• Generation
  9 9
• GPU Frequency
  2200 MHz 2200 MHz
• GPU name
  AMD Radeon Graphics AMD Radeon Graphics
• GPU Turbo
  2200 MHz 2200 MHz
• Graphics Cores
  2 2
• Max. displays
  3 3
• Max. GPU Memory
  8 GB 8 GB
• Release date
  Q3/2022 Q3/2022
• Shader
  128 128
• Technology
  5 nm 5 nm

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

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

Types, channel quantity of RAM supported by AMD Ryzen 9 7900 and AMD Ryzen 7 7800X3D. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  Yes Yes
• Max. Memory
  128 GB 128 GB
• Memory Bandwidth
  83.2 GB/s 83.2 GB/s
• Memory channels
  2 2
• Memory type
  DDR5 DDR5
• PCIe
  PCIe 5.0 PCIe 5.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 7 7800X3D and AMD Ryzen 9 7900 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
  120 W 65 W
• Maximum Operating Temperature
  89 °C 95 °C
• TDP (PL1, legacy label)
  170 W 65 W
• TDP (PL2)
  230 W -

Architecture, interfaces, additional instructions supported by AMD Ryzen 7 7800X3D and AMD Ryzen 9 7900, virtual machine technologies and process technology.

• Architecture
  Raphael (Zen 4) Raphael (Zen 4)
• Chip design
  Chiplet Chiplet
• Codename
  Raphael AM5 Raphael AM5
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
• L2-Cache
  8 MB 12 MB
• L3-Cache
  96 MB 64 MB
• Official source
  https://www.amd.com/en/products/processors/desktops/ryzen/7000-series/amd-ryzen-7-7800x3d.html https://www.amd.com/en/products/processors/desktops/ryzen/7000-series/amd-ryzen-9-7900.html
• Operating systems
  Windows 10, Windows 11, Linux Windows 10, Windows 11, Linux
• Release date
  2023-04-06 2023-01-14
• Release price
  - 429 $
• Socket
  AM5 AM5
• Technology
  TSMC 5nm FinFET TSMC 5nm FinFET
• Verification scope
  Explicit manufacturer fields refreshed; other original historical fields retained, not all reverified. Partial composite conflicts are preserved. Explicit manufacturer fields refreshed; other original historical fields retained, not all reverified. Partial composite conflicts are preserved.
• Verified on
  2026-09-30 2026-09-30
• Virtualization
  AMD-V, SVM AMD-V, SVM