Core i5-13400F vs FX-8100

Intel

Core i5-13400F

10 Cores16 Thrd65 WWMax: 4.6 GHz2023
Core family
·······
VS
AMD

FX-8100

8 Cores8 Thrd95 WWMax: 3.7 GHz2011
Similar parts
·······

Core i5-13400F vs FX-8100 Performance Spectrum

About PassMark

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Core i5-13400F vs FX-8100 FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Core i5-13400F vs FX-8100: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i5-13400F

2023

Why buy it

  • Better for gaming: +130.4% higher average FPS across 50 shared CPU benchmark tests.
  • +150% larger total L3 cache (20 MB vs 8 MB).
  • Costs $104 less on MSRP ($196 MSRP vs $300 MSRP).
  • Delivers 835.5% more PassMark for each dollar spent, at 127.7 vs 13.7 PassMark/$ ($196 MSRP vs $300 MSRP).
  • Draws 65W instead of 95W, a 30W reduction.

Trade-offs

  • Fewer obvious downsides in this matchup outside of normal market pricing swings.

FX-8100

2011

Why buy it

    Trade-offs

    • Worse for gaming: lower average FPS than Core i5-13400F across 50 shared CPU benchmark tests.
    • Lower Geekbench multi-core (1,621 vs 11,408).
    • Smaller total L3 cache (8 MB vs 20 MB).
    • Lower PassMark per dollar, at 13.7 vs 127.7 PassMark/$ ($300 MSRP vs $196 MSRP).
    • 46.2% higher power demand at 95W vs 65W.

    Quick Answers

    So, is Core i5-13400F better than FX-8100?
    Yes. Core i5-13400F is the better all-around CPU here. It gives you a 130.4% average FPS lead across 50 shared CPU game tests in our data, 603.8% better Geekbench multi-core, 511.2% higher PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.
    Which one is better for gaming?
    If gaming is the priority, Core i5-13400F is the better pick. According to our tests, it delivers 130.4% more average FPS across 50 shared CPU game tests.
    Which one is better for streaming, content creation, and heavy multitasking?
    For streaming, content creation, and heavier multitasking, Core i5-13400F is the stronger fit. You are getting 603.8% better Geekbench multi-core, backed by 10 cores and 16 threads. It also has the larger cache pool with 150% larger total L3 cache (20 MB vs 8 MB).
    Which one is the smarter buy today, not just the cheaper CPU?
    Core i5-13400F is the better buy right now. Core i5-13400F comes in $104 cheaper on MSRP at $196 MSRP versus $300 MSRP, and it still gives you a 130.4% average FPS lead across 50 shared CPU game tests in our data. It is also 835.5% better value on MSRP (127.7 vs 13.7 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.
    Which one is more future-proof for 2026 and beyond?
    Core i5-13400F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2011), a healthier platform with LGA1700 and DDR5 instead of AM3+, 150% larger total L3 cache (20 MB vs 8 MB), and more multi-core headroom with 10 cores / 16 threads instead of 8/8. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

    Core i5-13400F vs FX-8100 Technical Specifications

    Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

    Intel

    Core i5-13400F

    The Core i5-13400F is manufactured by Intel. It was released in 4 January 2023 (2 years ago). It is based on the Raptor Lake-S (2023−2024) architecture. It features 10 cores and 16 threads. Base frequency is 2.5 GHz, with boost up to 4.6 GHz. L3 cache: 20 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5, DDR4. Passmark benchmark score: 25,029 points. Launch price was $196.

    AMD

    FX-8100

    The FX-8100 is manufactured by AMD. It was released in 12 October 2011 (14 years ago). It is based on the Zambezi (2011−2012) architecture. It features 8 cores and 8 threads. Base frequency is 2.8 GHz, with boost up to 3.7 GHz. L3 cache: 8 MB (total). L2 cache: 8 MB. Built on 32 nm process technology. Socket: AM3+. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 4,095 points. Launch price was $69.

    Processing Power

    The Core i5-13400F packs 10 cores / 16 threads, while the FX-8100 offers 8 cores / 8 threads — the Core i5-13400F has 2 more cores. Boost clocks reach 4.6 GHz on the Core i5-13400F versus 3.7 GHz on the FX-8100 — a 21.7% clock advantage for the Core i5-13400F (base: 2.5 GHz vs 2.8 GHz). The Core i5-13400F uses the Raptor Lake-S (2023−2024) architecture (Intel 7 nm), while the FX-8100 uses Zambezi (2011−2012) (32 nm). In PassMark, the Core i5-13400F scores 25,029 against the FX-8100's 4,095 — a 143.8% lead for the Core i5-13400F. Geekbench 6 single-core — the metric most relevant to gaming — records 2,407 vs 455, a 136.4% lead for the Core i5-13400F that directly translates to higher frame rates. Multi-core Geekbench: 11,408 vs 1,621 (150.2% advantage for the Core i5-13400F). L3 cache: 20 MB (total) on the Core i5-13400F vs 8 MB (total) on the FX-8100.

    FeatureCore i5-13400FFX-8100
    Cores / Threads
    10 / 16+25%
    8 / 8
    Boost Clock
    4.6 GHz+24%
    3.7 GHz
    Base Clock
    2.5 GHz
    2.8 GHz+12%
    L3 Cache
    20 MB (total)+150%
    8 MB (total)
    L2 Cache
    1.25 MB (per core)
    8 MB+540%
    Process
    Intel 7 nm-78%
    32 nm
    Architecture
    Raptor Lake-S (2023−2024)
    Zambezi (2011−2012)
    PassMark
    25,029+511%
    4,095
    Cinebench R23 Multi
    16,211
    Geekbench 6 Single
    2,407+429%
    455
    Geekbench 6 Multi
    11,408+604%
    1,621
    🧠

    Memory & Platform

    The Core i5-13400F uses the LGA1700 socket (PCIe 5.0), while the FX-8100 uses AM3+ (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-13400F versus DDR3-1866 on the FX-8100 — the Core i5-13400F supports 157.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-13400F supports up to 192 GB of RAM compared to 16 GB 1100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i5-13400F) vs 0 (FX-8100) — the Core i5-13400F offers 20 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-13400F) and AMD 990FX,AMD 970 (FX-8100).

    FeatureCore i5-13400FFX-8100
    Socket
    LGA1700
    AM3+
    PCIe Generation
    PCIe 5.0+150%
    PCIe 2.0
    Max RAM Speed
    DDR5-4800, DDR4-3200+157%
    DDR3-1866
    Max RAM Capacity
    192 GB+1100%
    16 GB
    RAM Channels
    2
    2
    ECC Support
    No
    No
    PCIe Lanes
    20
    0
    🔧

    Advanced Features

    Only the FX-8100 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: VT-x, VT-d (Core i5-13400F) vs AMD-V (FX-8100). Primary use case: Core i5-13400F targets Gaming. Direct competitor: Core i5-13400F rivals Ryzen 5 7600.

    FeatureCore i5-13400FFX-8100
    Integrated GPU
    No
    No
    Unlocked
    No
    Yes
    AVX-512
    No
    No
    Virtualization
    VT-x, VT-d
    AMD-V
    Target Use
    Gaming
    💰

    Value Analysis

    At launch, the Core i5-13400F was priced at $196, while the FX-8100 came in at $300. On launch pricing ($196 vs $300), Core i5-13400F was $104 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-13400F delivers 127.7 pts/$ vs 13.7 pts/$ for the FX-8100 — making the Core i5-13400F the 161.4% better value option.

    FeatureCore i5-13400FFX-8100
    MSRP
    $196-35%
    $300
    Performance per Dollar
    127.7+832%
    13.7
    Release Date
    2023
    2011

    Affiliate Disclosure

    ChipVERSUS is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. We may earn a commission on qualifying purchases made through our links. This comes at no additional cost to you and helps support our work in providing comprehensive PC building guides and tools.

    Amazon and the Amazon logo are trademarks of Amazon.com, Inc. or its affiliates.