Core i5-13400F vs Core i9-9900X

Intel

Core i5-13400F

10 Cores16 Thrd65 WWMax: 4.6 GHz2023

Popular choices:

VS
Intel

Core i9-9900X

10 Cores20 Thrd165 WWMax: 4.5 GHz2018

Popular choices:

i5-13400F

Performance Spectrum - CPU

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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Core i5-13400F

2023

Why buy it

  • +15.9% higher Cinebench R23 multi-core.
  • Costs $793 less on MSRP ($196 MSRP vs $989 MSRP).
  • Delivers 483.2% more PassMark for each dollar spent, at 127.7 vs 21.9 PassMark/$ ($196 MSRP vs $989 MSRP).
  • Draws 65W instead of 165W, a 100W reduction.
  • Newer platform on LGA1700 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

  • Worse for gaming: lower average FPS than Core i9-9900X across 8 shared CPU benchmark tests.

Core i9-9900X

2018

Why buy it

  • Better for gaming: +19.4% higher average FPS across 8 shared CPU benchmark tests.
  • 120% more PCIe lanes (44 vs 20) for storage and expansion-heavy builds.

Trade-offs

  • Lower Cinebench R23 multi-core (13,985 vs 16,211).
  • Lower PassMark per dollar, at 21.9 vs 127.7 PassMark/$ ($989 MSRP vs $196 MSRP).
  • 153.8% higher power demand at 165W vs 65W.
  • Older platform position on LGA2066 with DDR4, while Core i5-13400F moves to LGA1700 and DDR5.
  • No boxed cooler included, unlike Core i5-13400F.

Quick Answers

So, is Core i5-13400F better than Core i9-9900X?
It depends on what matters more to you. For gaming, Core i9-9900X is ahead with a 19.4% average FPS lead across 8 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i5-13400F pulls ahead with 15.9% better Cinebench R23 multi-core.
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, Core i5-13400F is the better fit. You are getting 15.9% better Cinebench R23 multi-core, backed by 10 cores and 16 threads.
Which one is the smarter buy today, not just the cheaper CPU?
Core i5-13400F is the smarter buy today. Core i5-13400F is $793 cheaper on MSRP at $196 MSRP versus $989 MSRP, and it gives you 15.9% better Cinebench R23 multi-core. The trade-off is that Core i9-9900X is still the better pure gaming CPU with a 19.4% average FPS lead across 8 shared CPU game tests in our data. It is also 483.2% better value on MSRP (127.7 vs 21.9 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.
Which one is more future-proof for 2026 and beyond?
Core i5-13400F is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2018), a healthier platform with LGA1700 and DDR5 instead of LGA2066, and more multi-core headroom with 10 cores / 16 threads instead of 10/20. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Path of Exile 2

Path of Exile 2

PresetCore i5-13400FCore i9-9900X
1080p
low171 FPS178 FPS
medium158 FPS143 FPS
high132 FPS116 FPS
ultra112 FPS96 FPS
1440p
low143 FPS148 FPS
medium123 FPS117 FPS
high99 FPS95 FPS
ultra84 FPS78 FPS
4K
low81 FPS81 FPS
medium74 FPS69 FPS
high59 FPS55 FPS
ultra46 FPS43 FPS
Counter-Strike 2

Counter-Strike 2

PresetCore i5-13400FCore i9-9900X
1080p
low545 FPS516 FPS
medium464 FPS431 FPS
high389 FPS360 FPS
ultra356 FPS323 FPS
1440p
low458 FPS447 FPS
medium403 FPS384 FPS
high345 FPS323 FPS
ultra301 FPS279 FPS
4K
low280 FPS278 FPS
medium247 FPS239 FPS
high231 FPS220 FPS
ultra204 FPS192 FPS
League of Legends

League of Legends

PresetCore i5-13400FCore i9-9900X
1080p
low530 FPS541 FPS
medium449 FPS541 FPS
high415 FPS541 FPS
ultra375 FPS527 FPS
1440p
low490 FPS541 FPS
medium422 FPS518 FPS
high382 FPS469 FPS
ultra343 FPS407 FPS
4K
low393 FPS458 FPS
medium331 FPS363 FPS
high296 FPS328 FPS
ultra246 FPS262 FPS
Valorant

Valorant

PresetCore i5-13400FCore i9-9900X
1080p
low626 FPS541 FPS
medium626 FPS541 FPS
high626 FPS541 FPS
ultra626 FPS541 FPS
1440p
low626 FPS541 FPS
medium626 FPS541 FPS
high598 FPS541 FPS
ultra521 FPS541 FPS
4K
low535 FPS541 FPS
medium492 FPS541 FPS
high439 FPS506 FPS
ultra382 FPS437 FPS

Technical Specifications

Side-by-side comparison of Core i5-13400F and Core i9-9900X

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.

Intel

Core i9-9900X

The Core i9-9900X is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 10 cores and 20 threads. Base frequency is 3.5 GHz, with boost up to 4.5 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2666. Passmark benchmark score: 21,655 points. Launch price was $989.

Processing Power

The Core i5-13400F packs 10 cores / 16 threads, matching the Core i9-9900X's 10 cores. Boost clocks reach 4.6 GHz on the Core i5-13400F versus 4.5 GHz on the Core i9-9900X — a 2.2% clock advantage for the Core i5-13400F (base: 2.5 GHz vs 3.5 GHz). The Core i5-13400F uses the Raptor Lake-S (2023−2024) architecture (Intel 7 nm), while the Core i9-9900X uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i5-13400F scores 25,029 against the Core i9-9900X's 21,655 — a 14.5% lead for the Core i5-13400F. Cinebench R23 multi-core: 16,211 vs 13,985 (14.7% advantage for the Core i5-13400F). Geekbench 6 single-core — the metric most relevant to gaming — records 2,407 vs 1,459, a 49% lead for the Core i5-13400F that directly translates to higher frame rates. Multi-core Geekbench: 11,408 vs 9,475 (18.5% advantage for the Core i5-13400F). L3 cache: 20 MB (total) on the Core i5-13400F vs 19.25 MB (total) on the Core i9-9900X.

FeatureCore i5-13400FCore i9-9900X
Cores / Threads
10 / 16
10 / 20
Boost Clock
4.6 GHz+2%
4.5 GHz
Base Clock
2.5 GHz
3.5 GHz+40%
L3 Cache
20 MB (total)+4%
19.25 MB (total)
L2 Cache
1.25 MB (per core)+25%
1 MB (per core)
Process
Intel 7 nm-50%
14 nm
Architecture
Raptor Lake-S (2023−2024)
Skylake (server) (2017−2018)
PassMark
25,029+16%
21,655
Cinebench R23 Multi
16,211+16%
13,985
Geekbench 6 Single
2,407+65%
1,459
Geekbench 6 Multi
11,408+20%
9,475
🧠

Memory & Platform

The Core i5-13400F uses the LGA1700 socket (PCIe 5.0), while the Core i9-9900X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-13400F versus DDR4-2666 on the Core i9-9900X — the Core i5-13400F supports 22.2% 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 128 GB 40% more capacity for professional workloads. Memory channels: 2 (Core i5-13400F) vs 4 (Core i9-9900X). PCIe lanes: 20 (Core i5-13400F) vs 44 (Core i9-9900X) — the Core i9-9900X offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-13400F) and X299 (Core i9-9900X).

FeatureCore i5-13400FCore i9-9900X
Socket
LGA1700
LGA2066
PCIe Generation
PCIe 5.0+67%
PCIe 3.0
Max RAM Speed
DDR5-4800, DDR4-3200+25%
DDR4-2666
Max RAM Capacity
192 GB+50%
128 GB
RAM Channels
2
4+100%
ECC Support
No
No
PCIe Lanes
20
44+120%
🔧

Advanced Features

Only the Core i9-9900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Core i9-9900X supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. Primary use case: Core i5-13400F targets Gaming. Direct competitor: Core i5-13400F rivals Ryzen 5 7600.

FeatureCore i5-13400FCore i9-9900X
Integrated GPU
No
No
Unlocked
No
Yes
AVX-512
No
Yes
Virtualization
VT-x, VT-d
VT-x, VT-d
Target Use
Gaming
💰

Value Analysis

The Core i5-13400F launched at $196 MSRP, while the Core i9-9900X debuted at $989. On MSRP ($196 vs $989), the Core i5-13400F is $793 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-13400F delivers 127.7 pts/$ vs 21.9 pts/$ for the Core i9-9900X — making the Core i5-13400F the 141.5% better value option.

FeatureCore i5-13400FCore i9-9900X
MSRP
$196-80%
$989
Performance per Dollar
127.7+483%
21.9
Release Date
2023
2018