Intel Core i5-6400T
Intel Core i5-6600K
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Intel Core i5-6400T vs Intel Core i5-6600K. Specifications, performance, tests

Overall score
star star star star star
Released
Q3/2015
Intel Core i5-6400T
Intel Core i5-6400T
Released
Q3/2015
Overall score
star star star star star
Intel Core i5-6600K
Intel Core i5-6600K

Compare Intel Core i5-6400T VS Intel Core i5-6600K. Which processor delivers superior performance?

In this detailed comparison, we evaluate the specifications and benchmarks of both processors to determine the best choice for your needs. We analyze their core counts, maximum frequencies, and power consumption.

Intel Core i5-6400T boasts a maximum frequency of 2.20 GHz GHz. 4 cores that enhance multitasking capabilities.With a power consumption of 35 W W, it ensures efficient performance.Released in Q3/2015, it incorporates the latest technology for optimal efficiency.

Intel Core i5-6600K features a maximum frequency of 3.50 GHz GHz. 4 cores designed for high-performance tasks.Its power consumption is 91 W W, providing a balance of power and efficiency.Launched in Q3/2015, it is built to handle demanding applications.

Differences

  • Place in the overall ranking

    (based on several benchmarks)

    1033 left arrow score
  • Performance per watt

    times less performance per watt

    35 W left arrow 91 W

Positions in all rankings

Common positions Intel Core i5-6400T CPU in popular benchmarks, for comparison with other models.

  • Cinebench R15 (Single-Core)
    721 place
  • Cinebench R15 (Multi-Core)
    611 place
  • Geekbench 5, 64bit (Single-Core)
    907 place
  • Geekbench 5, 64bit (Multi-Core)
    911 place
  • iGPU - FP32 Performance (Single-precision GFLOPS)
    756 place
  • Geekbench 3, 64bit (Single-Core)
    460 place
  • Geekbench 3, 64bit (Multi-Core)
    428 place
  • Cinebench R11.5, 64bit (Single-Core)
    253 place
  • Cinebench R11.5, 64bit (Multi-Core)
    395 place
  • Cinebench R11.5, 64bit (iGPU, OpenGL)
    93 place
  • Estimated results for PassMark CPU Mark
    777 place
  • Place in the overall ranking

    (based on several benchmarks)

    647 left arrow score
  • Higher clock speed

    Around 37% better clock speed

    3.50 GHz left arrow 2.20 GHz
  • Higher turbo clock speed

    Around 28 % better overclocked clock speed

    3.90 GHz left arrow 2.80 GHz

Positions in all rankings

Common positions Intel Core i5-6600K CPU in popular benchmarks, for comparison with other models.

  • Cinebench R23 (Single-Core)
    285 place
  • Cinebench R23 (Multi-Core)
    287 place
  • Cinebench R20 (Single-Core)
    327 place
  • Cinebench R20 (Multi-Core)
    332 place
  • Cinebench R15 (Single-Core)
    302 place
  • Cinebench R15 (Multi-Core)
    502 place
  • Geekbench 5, 64bit (Single-Core)
    434 place
  • Geekbench 5, 64bit (Multi-Core)
    660 place
  • iGPU - FP32 Performance (Single-precision GFLOPS)
    779 place
  • Blender 2.81 (bmw27)
    74 place
  • Geekbench 3, 64bit (Single-Core)
    118 place
  • Geekbench 3, 64bit (Multi-Core)
    319 place
  • Cinebench R11.5, 64bit (Single-Core)
    157 place
  • Cinebench R11.5, 64bit (Multi-Core)
    324 place
  • Cinebench R11.5, 64bit (iGPU, OpenGL)
    86 place
  • Estimated results for PassMark CPU Mark
    642 place

Specifications

Technical data
Intel Core i5-6400T Intel Core i5-6400T
Intel Core i5-6600K Intel Core i5-6600K
CPU family and group

Comprehensive background on the processors being compared, detailing their series, generation, and targeted market segment.

  • Segment
    Desktop / Server left arrow Desktop / Server
  • Family
    Intel Core i5 left arrow Intel Core i5
  • Generation
    6 left arrow 6
  • CPU group
    Intel Core i 6000 left arrow Intel Core i 6000
  • Successor
    Intel Core i5-7400T left arrow Intel Core i5-7600K
CPU Technical specs

Essential parameters including the number of cores, threads, base and turbo frequencies, and cache size. These metrics provide insight into the processor’s speed—higher values generally indicate better performance.

  • Frequency
    2.20 GHz left arrow 3.50 GHz
  • CPU Cores
    4 left arrow 4
  • Turbo (1 Core)
    2.80 GHz left arrow 3.90 GHz
  • CPU Threads
    4 left arrow 4
  • Turbo (4 Cores)
    2.50 GHz left arrow 3.60 GHz
  • Hyperthreading
    No left arrow No
  • Overclocking
    No left arrow Yes
  • Core architecture
    normal left arrow normal
IGPU

The integrated graphics (iGPU) do not influence the CPU performance significantly; they serve as a substitute for a dedicated graphics card in the absence of one or are utilized in mobile devices.

  • GPU name
    Intel HD Graphics 530 left arrow Intel HD Graphics 530
  • GPU frequency
    0.35 GHz left arrow 0.35 GHz
  • GPU (Turbo)
    1.15 GHz left arrow 1.15 GHz
  • Execution units
    24 left arrow 24
  • Shader
    192 left arrow 192
  • Max. GPU Memory
    64 GB left arrow 64 GB
  • Max. displays
    3 left arrow 3
  • Generation
    9 left arrow 9
  • DirectX Version
    12 left arrow 12
  • Technology
    14 nm left arrow 14 nm
  • Release date
    Q3/2015 left arrow Q3/2015
Hardware codec support

This section details the built-in codecs used for encoding and decoding media content, which significantly enhance processing speed and efficiency.

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

Overview of the types and quantities of RAM supported by Intel Core i5-6600K and Intel Core i5-6400T. The supported memory frequencies may vary depending on the motherboard configuration.

  • Memory type
    DDR3-1600DDR4-2133 left arrow DDR3-1600DDR4-2133
  • Max. Memory
    left arrow 64 GB
  • ECC
    No left arrow No
  • Memory channels
    2 left arrow 2
  • PCIe version
    3.0 left arrow 3.0
  • PCIe lanes
    16 left arrow 16
Encryption
  • AES-NI
    Yes left arrow Yes
Thermal Management

Analyze the TDP (Thermal Design Power) requirements of Intel Core i5-6400T and Intel Core i5-6600K to make an informed decision on the appropriate cooling system. Remember that TDP refers to thermal watts, not electrical watts.

  • TDP (PL1)
    35 W left arrow 91 W
Technologies and extensions

Information on architecture, interfaces, and additional instructions supported by Intel Core i5-6400T and Intel Core i5-6600K, including virtual machine technologies and fabrication processes.

  • Instruction set (ISA)
    x86-64 (64 bit) left arrow x86-64 (64 bit)
  • Virtualization
    VT-x, VT-x EPT, VT-d left arrow VT-x, VT-x EPT, VT-d
  • ISA extensions
    SSE4.1, SSE4.2, AVX2 left arrow SSE4.1, SSE4.2, AVX2
  • L3-Cache
    6.00 MB left arrow 6.00 MB
  • Architecture
    Skylake S left arrow Skylake S
  • Technology
    14 nm left arrow 14 nm
  • Socket
    LGA 1151 left arrow LGA 1151
  • Release date
    Q3/2015 left arrow Q3/2015

Benchmarks

Performance tests CPUs

By analyzing the results from various benchmarks, you can gain a clearer understanding of the performance differences between Intel Core i5-6400T and Intel Core i5-6600K.

Compare the synthetic benchmark scores and make an informed decision on the best processor for your needs!

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
119
Intel Core i5-6400T
166
Intel Core i5-6600K
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
414
Intel Core i5-6400T
600
Intel Core i5-6600K
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
711
Intel Core i5-6400T
1106
Intel Core i5-6600K
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
2257
Intel Core i5-6400T
3631
Intel Core i5-6600K
iGPU - FP32 Performance (Single-precision GFLOPS)
The performance of the iGPU - the internal GPU in games
442
Intel Core i5-6400T
442
Intel Core i5-6600K
Geekbench 3, 64bit (Single-Core)
Geekbench 3 SC for one CPU core, includes stress tests simulating real 3D scenarios for Windows, Mac, Linux, Ansroid, iOS
2969
Intel Core i5-6400T
4147
Intel Core i5-6600K
Geekbench 3, 64bit (Multi-Core)
Geekbench 3 MC using a multi-core and hyperthreading, includes stress tests simulating real 3D scenarios for Windows, Mac, Linux, Ansroid, iOS
8379
Intel Core i5-6400T
12150
Intel Core i5-6600K
Cinebench R11.5, 64bit (Single-Core)
The PC CPU and GPU test involves rendering a specific 3D scene in single-core mode, based on CINEMA 4D
1.42
Intel Core i5-6400T
1.98
Intel Core i5-6600K
Cinebench R11.5, 64bit (Multi-Core)
The PC CPU and GPU test involves rendering a specific 3D scene in multi-core mode and hyperthreading, based on CINEMA 4D
4.51
Intel Core i5-6400T
6.54
Intel Core i5-6600K
Cinebench R11.5, 64bit (iGPU, OpenGL)
The iGPU test involves rendering a specific 3D scene, based on CINEMA 4D
36.2
Intel Core i5-6400T
36.2
Intel Core i5-6600K
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
5716
Intel Core i5-6400T
8288
Intel Core i5-6600K

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