AMD Ryzen 9 7900X3D vs AMD Ryzen 9 7940HS. Specifications, performance, tests

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

• CPU group
  AMD Ryzen 7000 AMD Ryzen 7040
• Family
  Ryzen Ryzen
• Form Factor
  Desktops / Boxed Processor Laptops / Desktops
• Generation
  6 6
• Segment
  Desktop Mobile
• 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
  4.4 GHz 4 GHz
• Core architecture
  normal normal
• Core Configuration
  12x 8x Zen 4
• CPU Cores
  12 8
• CPU Threads
  24 16
• Hyperthreading / SMT
  Yes Yes
• Max. Boost Clock
  5.6 GHz 5.2 GHz
• Overclocking
  Yes No
• Turbo Frequency (1 Core)
  5.6 GHz 5.2 GHz
• Turbo Frequency (12 Cores)
  5.4 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.

• DirectX Version
  12 12
• Execution units
  2 12
• Generation
  9 10
• GPU Frequency
  2200 MHz 2800 MHz
• GPU name
  AMD Radeon Graphics AMD Radeon 780M
• GPU Turbo
  2200 MHz 2700 MHz
• Graphics Cores
  2 12
• Max. displays
  3 4
• Max. GPU Memory
  8 GB 32 GB
• Release date
  Q3/2022 Q1/2023
• Shader
  128 768
• Technology
  5 nm 4 nm

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

• AV1
  No Decode / Encode
• H.264 / AVC
  Decode / Encode Conflicting source values: Decode | 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
• VP9
  Decode / Encode Decode

Types, channel quantity of RAM supported by AMD Ryzen 9 7940HS and AMD Ryzen 9 7900X3D. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  Yes Yes
• Max. Memory
  128 GB 256 GB
• Memory Bandwidth
  83.2 GB/s 89.6 GB/s
• Memory channels
  2 2
• Memory type
  DDR5 DDR5 (FP7r2) / LPDDR5X (FP7-FP8)
• PCIe
  PCIe 5.0 PCIe 4.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 9 7900X3D and AMD Ryzen 9 7940HS 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 35-54 W
• Maximum Operating Temperature
  89 °C 100 °C
• TDP (PL1, legacy label)
  170 W -
• TDP (PL2)
  230 W -
• TDP down
  - 35 W
• Configurable TDP
  - 35-54 W
• TDP (PL1 / PBP, legacy combined label)
  - 54 W

Architecture, interfaces, additional instructions supported by AMD Ryzen 9 7900X3D and AMD Ryzen 9 7940HS, virtual machine technologies and process technology.

• Architecture
  Raphael (Zen 4) Phoenix (Zen 4)
• Chip design
  Chiplet Monolithic
• Codename
  Raphael AM5 Phoenix
• Documents
  - Technical data sheet
• 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
  12 MB 8 MB
• L3-Cache
  128 MB 16 MB
• Operating systems
  Windows 10, Windows 11, Linux Windows 10, Windows 11, Linux
• Part Number
  - 100-000001128
• Release date
  2023-02-28 2023-04-30
• Socket
  AM5 FP7 / FP7r2 / FP8
• Technology
  TSMC 5nm FinFET TSMC 4nm FinFET
• Virtualization
  AMD-V, SVM AMD-V, SVM