AMD Ryzen 5 3400G vs AMD Ryzen 7 7840HS. Specifications, performance, tests

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

• CPU group
  AMD Ryzen 3000G AMD Ryzen 7040
• Family
  AMD Ryzen Ryzen
• Generation
  2 6
• Segment
  Desktop / Server Mobile
• Successor
  AMD Ryzen 5 4600G -
• Form Factor
  - Laptops / Desktops
• 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
  3.7 GHz 3.8 GHz
• Core architecture
  normal normal
• CPU Cores
  4 8
• CPU Threads
  8 16
• Hyperthreading / SMT
  Yes Yes
• Overclocking
  Yes No
• Turbo Frequency (1 Core)
  4.2 GHz 5.1 GHz
• Turbo Frequency (4 Cores)
  4 GHz -
• Core Configuration
  - 8x Zen 4
• Max. Boost Clock
  - 5.1 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
  11 12
• Generation
  8 10
• GPU Frequency
  1400 MHz 2700 MHz
• GPU name
  AMD Radeon Vega 11 Graphics AMD Radeon 780M
• GPU Turbo
  No turbo 2700 MHz
• Max. displays
  3 4
• Max. GPU Memory
  2 GB 32 GB
• Release date
  Q1/2018 Q1/2023
• Shader
  704 768
• Technology
  14 nm 4 nm
• Graphics Cores
  - 12

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 7 7840HS and AMD Ryzen 5 3400G. Depending on the motherboards, higher or lower memory frequencies may be supported.

• ECC
  Yes Yes
• Max. Memory
  64 GB 256 GB
• Memory channels
  2 2
• Memory type
  DDR4-2933 DDR5 (FP7r2) / LPDDR5X (FP7-FP8)
• PCIe lanes
  12 -
• PCIe version
  3.0 -
• Memory Bandwidth
  - 89.6 GB/s
• PCIe
  - PCIe 4.0

• AES-NI
  Yes Yes

Compare the TDP requirements of TDP AMD Ryzen 5 3400G and AMD Ryzen 7 7840HS Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

• Maximum Operating Temperature
  95 °C 100 °C
• TDP (PL1, legacy label)
  65 W -
• TDP down
  45 W 35 W
• Configurable TDP
  - 35-54 W
• Default TDP
  - 35-54 W
• TDP (PL1 / PBP, legacy combined label)
  - 54 W

Architecture, interfaces, additional instructions supported by AMD Ryzen 5 3400G and AMD Ryzen 7 7840HS, virtual machine technologies and process technology.

• Architecture
  Picasso (Zen+) Phoenix (Zen 4)
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
• L2-Cache
  - 8 MB
• L3-Cache
  4 MB 16 MB
• Part Number
  - 100-000001129
• Release date
  Q2/2019 Q4/2023
• Socket
  AM4 FP7 / FP7r2 / FP8
• Technology
  12 nm TSMC 4nm FinFET
• Virtualization
  AMD-V, SVM AMD-V, SVM
• Chip design
  - Monolithic
• Codename
  - Phoenix
• Documents
  - Technical data sheet
• Operating systems
  - Windows 10, Windows 11, Linux