Intel Core i7-5820K vs AMD Ryzen 7 7800X3D. Specifications, performance, tests

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

• Segment
  Desktop / Server Desktop / Server
• Family
  Intel Core i7 Extreme Edition AMD Ryzen 7
• Generation
  5 6
• CPU group
  Intel Core i 5000X AMD Ryzen 7000
• Predecessor
  -- AMD Ryzen 7 5800X3D

Basic parameters such as number of cores, number of threads, base and turbo frequency, and cache size. These parameters indirectly tell about the speed of the processor, the higher they are the better.

• Frequency
  3.30 GHz 4.70 GHz
• Overclocking
  Yes Yes
• Core architecture
  normal normal

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
  no iGPU AMD Radeon Graphics (Raphael)
• GPU frequency
  0.40 GHz
• GPU (Turbo)
  No turbo 2.20 GHz
• Execution units
  2
• Shader
  128
• Max. GPU Memory
  -- 8 GB
• Max. displays
  3
• Generation
  9
• Technology
  5 nm
• Release date
  Q3/2022

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

• h265 / HEVC (8 bit)
  No Decode / Encode
• h265 / HEVC (10 bit)
  No Decode / Encode
• h264
  No Decode / Encode
• VP9
  No Decode / Encode
• VP8
  No Decode / Encode
• AV1
  No No
• AVC
  No Decode / Encode
• VC-1
  No Decode
• JPEG
  No Decode / Encode

Types, channel quantity of RAM supported by AMD Ryzen 7 7800X3D and Intel Core i7-5820K. Depending on the motherboards, higher or lower memory frequencies may be supported.

• Memory type
  DDR4-2133 DDR5-5200
• Max. Memory
  64 GB 128 GB
• ECC
  No Yes
• Memory channels
  4 2 (Dual Channel)

Compare the TDP requirements of TDP Intel Core i7-5820K and AMD Ryzen 7 7800X3D to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

• TDP (PL1)
  140 W 170 W
• TDP (PL2)
  -- 230 W
• Tjunction max.
  -- 95 °C

Architecture, interfaces, additional instructions supported by Intel Core i7-5820K and Intel Core i7-5820K, virtual machine technologies and process technology.

• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• Virtualization
  VT-x, VT-x EPT, VT-d AMD-V, SVM
• ISA extensions
  SSE4.1, SSE4.2, AVX2 SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
• L2-Cache
  -- 8.00 MB
• L3-Cache
  15.00 MB 96.00 MB
• Architecture
  Haswell E Raphael (Zen 4)
• Technology
  22 nm 5 nm
• Socket
  LGA 2011-3 AM5 (LGA 1718)
• Release date
  Q3/2014 Q1/2023