CPU Comparison

Intel Core i3-8100 vs Intel Core i3-8350K

A side-by-side comparison of specs, performance and value. The Intel Core i3-8100 is a historically significant 8th-generation desktop processor that introduced 4 physical cores to the mainstream i3 tier, replacing the dual-core designs of previous generations.

Intel · Core i3
Intel Core i3-8100
4C / 4T3.6 GHz65 W
4
Full review
Top pick
Intel · Core i3
Intel Core i3-8350K
4C / 4T4 GHz91 W
5
Full review

The Bottom Line

Overview & Launch

Brand
Intel
Intel
Market
Desktop
Desktop
Segment
Desktop
Desktop
Generation
8th Generation
8th Generation
Launched
2017
2017
Status
End-of-life
End-of-life
Codename
Coffee Lake
Coffee Lake
Series
Core i3
Core i3
Family
Coffee Lake
Coffee Lake
Predecessor
Intel Core i3-7100
Intel Core i3-7350K
Successor
Intel Core i3-9100
Intel Core i3-9350K

Specifications Compared

Cores & Clocks
Cores
4
4
Threads
4
4
Base Clock
3.6 GHz
4 GHz
Boost Clock
3.6 GHz
4 GHz
Cache & Power
L3 Cache
6 MB
8 MB
TDP
65 W
91 W
Architecture
Architecture
Coffee Lake
Coffee Lake
Process Node
14nm
14nm
Memory
Memory Type
DDR4
DDR4
Memory Speed
DDR4-2400
DDR4-2400
Memory Channels
Dual (2)
Dual (2)
Platform & I/O
Socket
LGA 1151
LGA 1151
PCIe Version
PCIe 3.0
PCIe 3.0
PCIe Lanes
16
16
Integrated GPU
Yes
Yes
Unlocked
No
Yes

Performance Compared

Productivity

Intel Core i3-8100Best35

The lack of Hyper-Threading severely limits performance in heavily threaded office applications compared to newer 8-thread budget chips.

Intel Core i3-8350K30

Overclocking does not add threads. For heavily threaded productivity work, a stock 6-core CPU will easily beat an overclocked 4-core i3.

Gaming

Intel Core i3-810030

Paired with a strong discrete GPU, it can still handle older eSports titles, but modern AAA games will be heavily CPU bottlenecked.

Intel Core i3-8350KBest40

At stock speeds, it is comparable to other 8th-gen i3s. When overclocked to 5.0 GHz+, it can match stock i5s in eSports titles, but the lack of threads hurts in modern AAA games.

Virtualization

Intel Core i3-8100Best20

4 threads is the absolute minimum for running a modern OS and a single light virtual machine.

Intel Core i3-8350K18

4 threads is a hard limit for virtualization, regardless of how fast those threads run.

Efficiency

Intel Core i3-8100Best45

The 14nm process is power-hungry compared to modern 7nm or 5nm alternatives, drawing 65W for modest performance.

Intel Core i3-8350K30

Terrible efficiency. Pushing 1.3V+ through 14nm silicon to hit 5.0 GHz results in massive power draw and heat.

Specialized Performance

AI / ML

Intel Core i3-8100Minimal
  • No AI hardware acceleration
  • Lacks AVX-512
  • Far too slow for any practical AI inference
Intel Core i3-8350KMinimal
  • No AI acceleration
  • High clock speed cannot compensate for lack of AI instructions

Content Creation

Intel Core i3-8100Minimal
Light Spreadsheet WorkBasic Photo Viewing
Intel Core i3-8350KMinimal
Basic Web DevLight Photo Editing

Gaming

Intel Core i3-8100Poor
  • Requires a dedicated GPU for any gaming
  • Fixed clock speed prevents single-thread boosts
  • 4 cores are becoming the bare minimum for modern games
Intel Core i3-8350KAdequate
  • Requires heavy overclocking to be relevant
  • High clock speeds benefit older eSports titles
  • 4 cores/4 threads is a severe limitation for modern AAA gaming

Industry Impact

Gaming
Moderate
Low
Workstations
Low
Negligible
Content Creation
Low
Negligible
Virtualization
Low
Negligible

Best CPU by Use Case

eSports Gaming
Adequate
Office Work
Good
Media Playback
Good
Heavy Multitasking
Poor
Video Editing
Poor
Poor
Air/Water Overclocking
Excellent
eSports Gaming (OC'd)
Good
LN2 Extreme Overclocking
Excellent
Productivity
Poor

Target Audience

Gamers
Targeted
Targeted
Content Creators
Developers
Workstation Users
Streamers
Office / Productivity
Targeted
Students
Targeted

Strengths & Weaknesses

Intel Core i3-8100

Pros

  • Historically significant for bringing 4 cores to the i3 tier
  • Very cheap on the used market
  • Low 65W TDP is easy to cool
  • UHD 630 iGPU is sufficient for basic display tasks
  • Stable, mature platform with abundant used motherboards

Cons

  • No Hyper-Threading (4 cores, 4 threads only)
  • No Turbo Boost (fixed 3.6 GHz clock)
  • DDR4 memory speed artificially capped at 2400 MT/s
  • Outdated 14nm architecture with poor efficiency
  • Limited to PCIe 3.0
Intel Core i3-8350K

Pros

  • First unlocked i3, historic significance
  • Massive overclocking headroom (5.0 GHz+ on air)
  • 8MB L3 cache aids high-frequency stability
  • Fun project chip for hardware enthusiasts
  • High stock clock of 4.0 GHz

Cons

  • No Hyper-Threading (4 cores, 4 threads only)
  • Requires expensive Z-series motherboard
  • Terrible power efficiency when overclocked
  • Outperformed by cheaper locked 6-core CPUs
  • Obsolete LGA 1151 v2 platform

Competitors & Alternatives

Intel Core i3-8100

  • AMD Ryzen 3 1200

    Budget Desktop

    Rival
  • AMD Ryzen 3 2200G

    Budget Desktop APU

    Rival
  • Intel Pentium Gold G5400

    Entry Desktop

    Rival
  • AMD Ryzen 5 1400

    Mid-Range Desktop

    Rival
  • Intel Core i5-7400

    Previous Gen Mid-Range

    Rival
    Compare head-to-head
  • A drop-in replacement (with a BIOS update) that adds Hyper-Threading for 8 threads and much higher clocks.

    Compare head-to-head
  • AMD Ryzen 3 3100
    Alt

    Offers SMT (8 threads) and a modern upgrade path to Ryzen 5000 series.

  • If staying on the exact same platform, the 8400 offers 6 cores for much better multitasking.

    Compare head-to-head
  • AMD Ryzen 5 3600
    Alt

    A massively faster 12-thread CPU that redefines budget performance.

  • The current king of budget computing, offering IPC gains that make the 8100 look stationary.

    Compare head-to-head

Intel Core i3-8350K

Our Verdict on Each

A landmark chip in 2017 for bringing quad-core computing to the masses, but thoroughly outclassed by modern budget processors in every metric.

Best for: The only justifiable scenario for purchasing an Intel Core i3-8100 today is if you are repairing an existing LGA 1151 v2 system (like an office PC or a hand-me-down) and can find the CPU for under $20 on the used market. Even then, you must consider that the 8100 lacks Hyper-Threading, which severely limits its longevity in modern operating systems that are increasingly optimized for 8 or more threads. If you are building a new system, even the absolute cheapest new motherboard and CPU combo from AMD or Intel's 12th/13th gen will offer exponentially better performance, efficiency, and platform features like PCIe 4.0 or DDR5. Do not buy this CPU for gaming, as the lack of Turbo Boost and Hyper-Threading will cause severe stuttering in modern titles compared to a modern Ryzen 3.

Read the full review

A fun overclocking toy in 2017, but the lack of Hyper-Threading and a high 91W TDP make it a poor value compared to even cheap modern chips.

Best for: You should avoid buying the Intel Core i3-8350K unless you are a dedicated overclocking hobbyist looking for a cheap project chip to practice manual tuning, delidding, or extreme cooling on. If you fall into that niche, buying a used 8350K for $20 and pushing it to 5.0 GHz can be incredibly fun and educational. However, for any practical use case—gaming, work, or productivity—this chip is a poor investment. It requires an expensive Z370 or Z390 motherboard to utilize its only feature (overclocking), yet a locked Ryzen 5 3600 on a cheap B450 board will destroy it in every multi-threaded benchmark while using less power. The lack of Hyper-Threading is a fatal flaw that no amount of frequency can fix. Spend your money on modern hardware.

Read the full review

Frequently Asked Questions

Which is better, Intel Core i3-8100 or Intel Core i3-8350K?

Based on our editorial ratings, the Intel Core i3-8350K comes out ahead with a score of 5/10. That said, the best choice depends on your workload — check the spec and performance breakdown above for gaming, productivity and efficiency differences.

Which is faster for gaming, Intel Core i3-8100 or Intel Core i3-8350K?

For gaming, the Intel Core i3-8350K leads with a gaming performance score of 40/100 among Intel Core i3-8100 and Intel Core i3-8350K.

Which uses less power?

The Intel Core i3-8100 has the lowest rated TDP. Power draw across these chips: Intel Core i3-8100 (65 W), Intel Core i3-8350K (91 W).

Do Intel Core i3-8100 and Intel Core i3-8350K use the same socket?

Yes — all of these CPUs use the LGA 1151 socket, so they share compatible motherboards.