Intel Core i7-5820K
AMD Ryzen 9 3900X
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Intel Core i7-5820K vs AMD Ryzen 9 3900X. Specifications, performance, tests

Overall score
star star star star star
Released
Q3/2014
Intel Core i7-5820K
Intel Core i7-5820K
Released
Q3/2019
Overall score
star star star star star
AMD Ryzen 9 3900X
AMD Ryzen 9 3900X

What's the best choice Intel Core i7-5820K or AMD Ryzen 9 3900X? Which processor is faster?

We have prepared a comparison to help you choose the best processor. Compare their specifications and benchmarks.

Intel Core i7-5820K has a maximum frequency of 3.30 GHz. 6 Cores. Power consumption of 140 W. Released in Q3/2014.

AMD Ryzen 9 3900X has a maximum frequency of 3.80 GHz. 12 / 24 Cores. Power consumption of 105 W. Released in Q3/2019.

Differences

  • Place in the overall ranking

    (based on several benchmarks)

    622 left arrow score

Positions in all rankings

Common positions Intel Core i7-5820K CPU in popular benchmarks, for comparison with other models.

  • Cinebench R23 (Single-Core)
    352 place
  • Cinebench R23 (Multi-Core)
    252 place
  • Cinebench R20 (Single-Core)
    428 place
  • Cinebench R20 (Multi-Core)
    263 place
  • Cinebench R15 (Single-Core)
    546 place
  • Cinebench R15 (Multi-Core)
    292 place
  • Geekbench 5, 64bit (Single-Core)
    615 place
  • Geekbench 5, 64bit (Multi-Core)
    490 place
  • Blender 2.81 (bmw27)
    101 place
  • Geekbench 3, 64bit (Single-Core)
    247 place
  • Geekbench 3, 64bit (Multi-Core)
    146 place
  • Cinebench R11.5, 64bit (Single-Core)
    448 place
  • Cinebench R11.5, 64bit (Multi-Core)
    158 place
  • Estimated results for PassMark CPU Mark
    432 place
AMD Ryzen 9 3900X Reasons to consider
AMD Ryzen 9 3900X
Report a bug
  • Place in the overall ranking

    (based on several benchmarks)

    381 left arrow score
  • Higher clock speed

    Around 13% better clock speed

    3.80 GHz left arrow 3.30 GHz
  • More number of cores

    About 2 times more cores

    12 left arrow 6
  • Higher turbo clock speed

    Around 22 % better overclocked clock speed

    4.60 GHz left arrow 3.60 GHz
  • Performance per watt

    About 0.75 times less performance per watt

    105 W left arrow 140 W

Positions in all rankings

Common positions AMD Ryzen 9 3900X CPU in popular benchmarks, for comparison with other models.

  • Cinebench R23 (Single-Core)
    180 place
  • Cinebench R23 (Multi-Core)
    64 place
  • Cinebench R20 (Single-Core)
    140 place
  • Cinebench R20 (Multi-Core)
    56 place
  • Cinebench R15 (Single-Core)
    80 place
  • Cinebench R15 (Multi-Core)
    56 place
  • Geekbench 5, 64bit (Single-Core)
    309 place
  • Geekbench 5, 64bit (Multi-Core)
    142 place
  • Monero Hashrate kH/s
    25 place
  • Blender 2.81 (bmw27)
    173 place
  • Estimated results for PassMark CPU Mark
    1304 place

Specifications

Technical data
Intel Core i7-5820K Intel Core i7-5820K
AMD Ryzen 9 3900X AMD Ryzen 9 3900X
CPU family and group

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

  • Segment
    Desktop / Server left arrow Desktop / Server
  • Family
    Intel Core i7 Extreme Edition left arrow AMD Ryzen
  • Generation
    5 left arrow 3
  • CPU group
    Intel Core i 5000X left arrow AMD Ryzen 3000
  • Successor
    -- left arrow AMD Ryzen 9 5900X
CPU Technical specs

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 left arrow 3.80 GHz
  • Overclocking
    Yes left arrow Yes
  • Core architecture
    normal left arrow normal
IGPU

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 left arrow no iGPU
  • GPU frequency
    left arrow --
  • GPU (Turbo)
    No turbo left arrow No turbo
  • Execution units
    left arrow --
  • Shader
    left arrow --
  • Max. displays
    left arrow --
  • Generation
    left arrow --
  • Technology
    left arrow --
  • Release date
    left arrow --
Hardware codec support

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

  • h265 / HEVC (8 bit)
    No left arrow No
  • h265 / HEVC (10 bit)
    No left arrow No
  • h264
    No left arrow No
  • VP9
    No left arrow No
  • VP8
    No left arrow No
  • AV1
    No left arrow No
  • AVC
    No left arrow No
  • VC-1
    No left arrow No
  • JPEG
    No left arrow No
Memory specs & PCI

Types, channel quantity of RAM supported by AMD Ryzen 9 3900X and Intel Core i7-5820K. Depending on the motherboards, higher or lower memory frequencies may be supported.

  • Memory type
    DDR4-2133 left arrow DDR4-3200
  • Max. Memory
    64 GB left arrow 128 GB
  • ECC
    No left arrow Yes
  • Memory channels
    4 left arrow 2
Thermal Management

Compare the TDP requirements of TDP Intel Core i7-5820K and AMD Ryzen 9 3900X to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

  • TDP (PL1)
    140 W left arrow 105 W
  • TDP (PL2)
    -- left arrow 142 W
  • Tjunction max.
    -- left arrow 95 °C
Technologies and extensions

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) left arrow x86-64 (64 bit)
  • Virtualization
    VT-x, VT-x EPT, VT-d left arrow AMD-V, SVM
  • ISA extensions
    SSE4.1, SSE4.2, AVX2 left arrow SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
  • L2-Cache
    -- left arrow 6.00 MB
  • L3-Cache
    15.00 MB left arrow 64.00 MB
  • Architecture
    Haswell E left arrow Matisse (Zen 2)
  • Technology
    22 nm left arrow 7 nm
  • Socket
    LGA 2011-3 left arrow AM4
  • Release date
    Q3/2014 left arrow Q3/2019

Benchmarks

Performance tests CPUs

Based on the results of several benchmarks, you can more accurately estimate the difference in performance between Intel Core i7-5820K and AMD Ryzen 9 3900X.

Compare the synthetic test values and choose the best processor!

Cinebench R23 (Single-Core)
Maxon's Cinebench R23 SC is a cross-platform test suite for macOs and Windows uses one CPU core, with no hypetrading
795
Intel Core i7-5820K
1302
AMD Ryzen 9 3900X
Cinebench R23 (Multi-Core)
Maxon's Cinebench R23 MC is a cross-platform test suite for macOs and Windows using a multi-core and hyperthreading
5700
Intel Core i7-5820K
18165
AMD Ryzen 9 3900X
Cinebench R20 (Single-Core)
Cinebench R20 SC is a high load CPU test for long tasks on a desktop or notebook PC, uses one CPU core, with no hypetrading
329
Intel Core i7-5820K
502
AMD Ryzen 9 3900X
Cinebench R20 (Multi-Core)
Cinebench R20 MC is a high load CPU test for long tasks on a desktop or notebook PC, using a multi-core and hyperthreading
2301
Intel Core i7-5820K
6954
AMD Ryzen 9 3900X
Cinebench R15 (Single-Core)
The Cinebench R15 SC stresses the computing modules of a desktop or laptop computer to their limits and accurately determines the key performance parameters of the hardware
139
Intel Core i7-5820K
214
AMD Ryzen 9 3900X
Cinebench R15 (Multi-Core)
The Cinebench R15 MC stresses the computing modules of a desktop or laptop computer to their limits and accurately determines the key performance parameters of the hardware
1085
Intel Core i7-5820K
3168
AMD Ryzen 9 3900X
Geekbench 5, 64bit (Single-Core)
Geekbench 5 SC is a popular cross-platform performance test for desktop or mobile processors that uses system memory intensively
923
Intel Core i7-5820K
1300
AMD Ryzen 9 3900X
Geekbench 5, 64bit (Multi-Core)
Geekbench 5 MC is a popular cross-platform performance test for desktop or mobile processors that uses system memory intensively
5537
Intel Core i7-5820K
12454
AMD Ryzen 9 3900X
Blender 2.81 (bmw27)
Blender is Open Source Software, creating predefined 3D scenes and measuring the time to execute them
331.7
Intel Core i7-5820K
115.9
AMD Ryzen 9 3900X
Estimated results for PassMark CPU Mark
PassMark is a test suite that performs complex mathematical calculations to determine CPU performance on file compression, encryption and physics-related tasks
13014
Intel Core i7-5820K
31947
AMD Ryzen 9 3900X

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