Intel Core i3-8100 Intel Core i5-6600K
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Intel Core i3-8100 vs Intel Core i5-6600K

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The Intel Core i5-6600K is based on the Skylake S architecture and was introduced as a powerful desktop processor with overclocking capability for enthusiasts and gamers.

The Intel Core i3-8100, on the other hand, comes from the newer Coffee Lake S architecture and was aimed at the mainstream market, seeking balanced performance for everyday tasks and light gaming.

Both processors are manufactured using the 14 nm process. They each have 4 physical cores and 4 threads. The Intel Core i5-6600K offers a Level 3 cache of 6 MB, as does the Intel Core i3-8100. In terms of single-core performance, the Intel Core i5-6600K shows a clear advantage of over 10 percent in Cinebench R23 compared to the Intel Core i3-8100.

This advantage continues with multi-core performance in Cinebench R23, where the Intel Core i5-6600K also achieves values more than 10 percent higher. In Geekbench 6 tests, the performance differences in both single-core and multi-core areas are smaller and below the 10 percent threshold, indicating comparable performance in these specific applications.

For gaming scenarios, the Intel Core i5-6600K, through its K-series and associated overclocking option, can offer superior performance in titles that heavily benefit from single-core performance. The Intel Core i3-8100 benefits from the newer Coffee Lake S architecture, which brings IPC improvements and thus enables solid gaming performance even without overclocking.

PCIe version 3.0 is supported by both CPUs, as is an integrated graphics unit (Intel HD Graphics 530 for the i5-6600K and Intel UHD Graphics 630 for the i3-8100). The Intel Core i5-6600K has a maximum memory bandwidth of 34 GB/s, while the Intel Core i3-8100 achieves 38 GB/s. Information on power consumption and thermal design power (TDP) is not included in the provided data.

Regarding price-performance ratio, the Intel Core i5-6600K originally offered higher peak performance, especially for overclockers, and was positioned in the premium segment. The Intel Core i3-8100 represented a more cost-effective option with good performance for everyday applications.

Current market prices are not available, but both processors can be found on the used market. The Intel Core i5-6600K is characterized by its higher raw performance and overclocking capability, making it a good choice for performance-oriented users and gamers. The Intel Core i3-8100, on the other hand, offers a more efficient, modern architecture and is a solid option for budget-conscious users who want reliable performance without overclocking ambitions.

For gaming enthusiasts willing to utilize the overclocking option, the Intel Core i5-6600K is recommended. For general productivity and gaming without overclocking, with the advantage of a newer architecture, the Intel Core i3-8100 is the preferred choice.

Intel Core i5-6600K

  • Higher single-core and multi-core performance in Cinebench R23
  • Overclockable for maximum performance
  • Good choice for gaming enthusiasts
  • Integrated Intel HD Graphics 530

Intel Core i3-8100

  • More modern Coffee Lake S architecture
  • Efficiency improvements due to newer architecture
  • Good performance for everyday applications
  • Integrated Intel UHD Graphics 630

Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank 2 - 90 %
Intel Core i3-8100
Rank 1 - 100 %
Intel Core i5-6600K
Multi-core performance
Rank 2 - 93 %
Intel Core i3-8100
Rank 1 - 100 %
Intel Core i5-6600K
Cinebench R23 Single-Core

Cinebench R23 Single-Core
Single-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
912 pts
Intel Core i5-6600K
4C / 4T · 3.90 GHz
1,041 pts
Cinebench R23 Multi-Core

Cinebench R23 Multi-Core
Multi-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
3,618 pts
Intel Core i5-6600K
4C / 4T · 3.60 GHz
3,965 pts
Geekbench 6 Single-Core

Geekbench 6 Single-Core
Single-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
1,265
Intel Core i5-6600K
4C / 4T · 3.90 GHz
1,359
Geekbench 6 Multi-Core

Geekbench 6 Multi-Core
Multi-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
3,627
Intel Core i5-6600K
4C / 4T · 3.60 GHz
3,985
Cinebench R20 Single-Core

Cinebench R20 Single-Core
Single-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
364 cb
Intel Core i5-6600K
4C / 4T · 3.90 GHz
395 cb
Geekbench 5, 64bit Single-Core

Geekbench 5, 64bit Single-Core
Single-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
971
Intel Core i5-6600K
4C / 4T · 3.90 GHz
1,106
Cinebench R20 Multi-Core

Cinebench R20 Multi-Core
Multi-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
1,444 cb
Intel Core i5-6600K
4C / 4T · 3.60 GHz
1,572 cb
Geekbench 5, 64bit Multi-Core

Geekbench 5, 64bit Multi-Core
Multi-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
3,134
Intel Core i5-6600K
4C / 4T · 3.60 GHz
3,631
iGPU - FP32 Performance (Single-precision GFLOPS)

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel Core i3-8100
Intel UHD Graphics 630
422
Intel Core i5-6600K
Intel HD Graphics 530
442
CPU-Z Benchmark 17 Single-Core

CPU-Z Benchmark 17 Single-Core
Single-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
422
Intel Core i5-6600K
4C / 4T · 3.90 GHz
459
CPU-Z Benchmark 17 Multi-Core

CPU-Z Benchmark 17 Multi-Core
Multi-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
1,579
Intel Core i5-6600K
4C / 4T · 3.50 GHz
1,621
Cinebench R15 (Single-Core)

Cinebench R15 (Single-Core)
Single-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
154 cb
Intel Core i5-6600K
4C / 4T · 3.90 GHz
166 cb
Cinebench R15 (Multi-Core)

Cinebench R15 (Multi-Core)
Multi-core performance

Intel Core i3-8100
4C / 4T · 3.60 GHz
616 cb
Intel Core i5-6600K
4C / 4T · 3.60 GHz
600 cb

More benchmarks

At a glance

Wischen
Intel Core i3-8100Intel Core i5-6600K
FamilyIntel Core i3 (205)Intel Core i5 (336)
CPU groupIntel Core i 8000 (20)Intel Core i 6000 (24)
ArchitectureCoffee Lake SSkylake S
Technology14 nm14 nm
SegmentDesktopDesktop
SocketLGA 1151-2LGA 1151
PredecessorIntel Core i3-7100
SuccessorIntel Core i3-9100Intel Core i5-7600K

CPU Cores and Base Frequency

Wischen
Intel Core i3-8100Intel Core i5-6600K
CPU Cores / Threads4 / 44 / 4
Hyperthreading / SMT
Core architecturenormalnormal
Cores: 4x 4x
Frequency: 3.60 GHz 3.50 GHz
Turbo (1 Core): 3.90 GHz
Turbo (All Cores): 3.60 GHz
L2-Cache
L3-Cache6.00 MB6.00 MB
Overclocking

Integrated graphics (iGPU)

Wischen
Intel Core i3-8100Intel Core i5-6600K
GPU nameIntel UHD Graphics 630Intel HD Graphics 530
GPU frequency0.35 - 1.10 GHz0.35 - 1.15 GHz
CUs / Shader24 / 19224 / 192
Raytracing
Max. displays33
Max. GPU Memory64 GB32 GB
Technology14 nm14 nm
Release dateQ4/2017Q3/2015

NPU AI performance

Wischen
Intel Core i3-8100Intel Core i5-6600K
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen
Intel Core i3-8100Intel Core i5-6600K
MemoryDDR4-2400 (38.4 GB/s)
DDR4-2133 (34.1 GB/s)
DDR3-1600 (25.6 GB/s)
Max. Memory64 GB64 GB
Memory channels22
ECCYesNo
PCIe3.0 x 163.0 x 16
PCIe Bandwidth15.8 GB/s15.8 GB/s

Thermal Management

Wischen
Intel Core i3-8100Intel Core i5-6600K
TDP65 W91 W
TDP (PL2)
TDP up
TDP down
T. junction max.100 °C

Technical details

Wischen
Intel Core i3-8100Intel Core i5-6600K
Chip designMonolithicMonolithic
AES-NI
Operating systemsWindows 10, Windows 11, LinuxWindows 10, Linux
Instruction setx86-64 (64 bit)x86-64 (64 bit)
ISA extensionsSSE4.1, SSE4.2, AVX2SSE4.1, SSE4.2, AVX2
Release dateQ4/2017Q3/2015
Release price117 $280 $
DocumentsTechnical data sheetTechnical data sheet

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core i3-8100 is 4.1 stars (85 ratings), while Intel Core i5-6600K has received 3.7 stars (34 ratings).

Click on the stars to rate one or both processors.

Intel Core i3-8100
Intel Core i3-8100
4C / 4T · 3.60 GHz
Intel Core i5-6600K
Intel Core i5-6600K
4C / 4T · 3.50 - 3.90 GHz

Most popular CPUs in both categories

Intel Core i3-8100
Intel Core i3-8100
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