Core i5-13400F vs Core i7-7820X

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 Core i7-7820X 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 Core i7-7820X: 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

✅+81.8% larger total L3 cache (20 MB vs 11 MB).
✅Costs $403 less on MSRP ($196 MSRP vs $599 MSRP).
✅Delivers 345.5% more PassMark for each dollar spent, at 127.7 vs 28.7 PassMark/$ ($196 MSRP vs $599 MSRP).
✅Draws 65W instead of 140W, a 75W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

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

Core i7-7820X

2017

Why buy it

Trade-offs

❌Lower PassMark (17,171 vs 25,029).
❌Smaller total L3 cache (11 MB vs 20 MB).
❌Lower PassMark per dollar, at 28.7 vs 127.7 PassMark/$ ($599 MSRP vs $196 MSRP).
❌115.4% higher power demand at 140W vs 65W.
❌Older platform position on LGA2066 with DDR4, while Core i5-13400F moves to LGA1700 and DDR5.

Quick Answers

So, is Core i5-13400F better than Core i7-7820X?

Yes. Core i5-13400F is the better all-around CPU here. It gives you a 1.4% average FPS lead across 50 shared CPU game tests in our data, 45.8% better 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 1.4% 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 45.8% better PassMark, backed by 10 cores and 16 threads. It also has the larger cache pool with 81.8% larger total L3 cache (20 MB vs 11 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 $403 cheaper on MSRP at $196 MSRP versus $599 MSRP, and it still gives you a 1.4% average FPS lead across 50 shared CPU game tests in our data. It is also 345.5% better value on MSRP (127.7 vs 28.7 PassMark/$), 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 2017), a healthier platform with LGA1700 and DDR5 instead of LGA2066, 81.8% larger total L3 cache (20 MB vs 11 MB), and more multi-core headroom with 10 cores / 16 threads instead of 8/16. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-13400F vs Core i7-7820X Technical Specifications

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

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.

Core i7-7820X

The Core i7-7820X is manufactured by Intel. It was released in 26 June 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 8 cores and 16 threads. Base frequency is 3.6 GHz, with boost up to 4.5 GHz. L3 cache: 11 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 140 Watt. Memory support: DDR4-2666. Passmark benchmark score: 17,171 points. Launch price was $599.

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Processing Power

The Core i5-13400F packs 10 cores / 16 threads, while the Core i7-7820X offers 8 cores / 16 threads — the Core i5-13400F has 2 more cores. Boost clocks reach 4.6 GHz on the Core i5-13400F versus 4.5 GHz on the Core i7-7820X — a 2.2% clock advantage for the Core i5-13400F (base: 2.5 GHz vs 3.6 GHz). The Core i5-13400F uses the Raptor Lake-S (2023−2024) architecture (Intel 7 nm), while the Core i7-7820X uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i5-13400F scores 25,029 against the Core i7-7820X's 17,171 — a 37.2% lead for the Core i5-13400F. L3 cache: 20 MB (total) on the Core i5-13400F vs 11 MB (total) on the Core i7-7820X.

Feature	Core i5-13400F	Core i7-7820X
Cores / Threads	10 / 16+25%	8 / 16
Boost Clock	4.6 GHz+2%	4.5 GHz
Base Clock	2.5 GHz	3.6 GHz+44%
L3 Cache	20 MB (total)+82%	11 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+46%	17,171
Cinebench R23 Multi	16,211	—
Geekbench 6 Single	2,407	—
Geekbench 6 Multi	11,408	—

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Memory & Platform

The Core i5-13400F uses the LGA1700 socket (PCIe 5.0), while the Core i7-7820X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-13400F	Core i7-7820X
Socket	LGA1700	LGA2066
PCIe Generation	PCIe 5.0+67%	PCIe 3.0
Max RAM Speed	DDR5-4800, DDR4-3200	—
Max RAM Capacity	192 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i5-13400F) / not specified (Core i7-7820X). Primary use case: Core i5-13400F targets Gaming. Direct competitor: Core i5-13400F rivals Ryzen 5 7600.

Feature	Core i5-13400F	Core i7-7820X
Integrated GPU	No	—
Unlocked	No	—
AVX-512	No	—
Virtualization	VT-x, VT-d	—
Target Use	Gaming	—

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Value Analysis

At launch, the Core i5-13400F was priced at $196, while the Core i7-7820X came in at $599. On launch pricing ($196 vs $599), Core i5-13400F was $403 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-13400F delivers 127.7 pts/$ vs 28.7 pts/$ for the Core i7-7820X — making the Core i5-13400F the 126.7% better value option.

Feature	Core i5-13400F	Core i7-7820X
MSRP	$196-67%	$599
Performance per Dollar	127.7+345%	28.7
Release Date	2023	2017

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