Core i5-10400F vs Ryzen 9 9900X

CPU

GPU

Core i5-10400F

6 Cores12 Thrd65 WWMax: 4.3 GHz2020

Core family

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Ryzen 9 9900X

12 Cores24 Thrd120 WWMax: 5.6 GHz2024

Ryzen family

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Core i5-10400F vs Ryzen 9 9900X Performance Spectrum

Core i5-10400F

6 / 12

13,029

0.0%

54,530

+318.5%

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper PRO 5995WX

Ryzen Threadripper 9970X

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 i5-10400F vs Ryzen 9 9900X 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 i5-10400F vs Ryzen 9 9900X: Pros, Cons & Final Verdict

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

Core i5-10400F

2020

Why buy it

✅Costs $339 less on MSRP ($160 MSRP vs $499 MSRP).
✅Draws 65W instead of 120W, a 55W reduction.
✅Includes a boxed cooler (Yes), unlike Ryzen 9 9900X.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 9900X across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (8,191 vs 33,003).
❌Smaller total L3 cache (12 MB vs 64 MB).
❌Lower PassMark per dollar, at 81.4 vs 109.3 PassMark/$ ($160 MSRP vs $499 MSRP).
❌Older platform position on LGA1200 with DDR4, while Ryzen 9 9900X moves to AM5 and DDR5.

Ryzen 9 9900X

2024

Why buy it

✅Better for gaming: +55.9% higher average FPS across 50 shared CPU benchmark tests.
✅+433.3% larger total L3 cache (64 MB vs 12 MB).
✅Delivers 34.2% more PassMark for each dollar spent, at 109.3 vs 81.4 PassMark/$ ($499 MSRP vs $160 MSRP).
✅Newer platform on AM5 with DDR5 support instead of LGA1200 and DDR4.
✅50% more PCIe lanes (24 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌
211.9% HIGHER MSRP
$499 MSRPvs$160 MSRP
❌84.6% higher power demand at 120W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Ryzen 9 9900X better than Core i5-10400F?

Yes. Ryzen 9 9900X is the better all-around CPU here. It gives you a 55.9% average FPS lead across 50 shared CPU game tests in our data, 302.9% better Cinebench R23 multi-core, 318.5% 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, Ryzen 9 9900X is the better pick. According to our tests, it delivers 55.9% 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, Ryzen 9 9900X is the stronger fit. You are getting 302.9% better Cinebench R23 multi-core, backed by 12 cores and 24 threads. It also has the larger cache pool with 433.3% larger total L3 cache (64 MB vs 12 MB).

Which one is the smarter buy today, not just the cheaper CPU?

Ryzen 9 9900X is the better buy right now. Ryzen 9 9900X comes in 211.9% more expensive on MSRP at $499 MSRP versus $160 MSRP, and it still gives you a 55.9% average FPS lead across 50 shared CPU game tests in our data. It is also 34.2% better value on MSRP (109.3 vs 81.4 PassMark/$), so you are getting the faster CPU without taking a value hit on paper. That said, if you already own a compatible LGA1200 + DDR4 setup, Core i5-10400F can still make sense as a platform-matched option because it avoids a motherboard and RAM swap.

Which one is more future-proof for 2026 and beyond?

Ryzen 9 9900X makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2020), a healthier platform with AM5 and DDR5 instead of LGA1200, 433.3% larger total L3 cache (64 MB vs 12 MB), and more multi-core headroom with 12 cores / 24 threads instead of 6/12. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-10400F vs Ryzen 9 9900X Technical Specifications

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

Core i5-10400F

The Core i5-10400F is manufactured by Intel. It was released in 30 April 2020 (5 years ago). It is based on the Comet Lake (2020−2025) architecture. It features 6 cores and 12 threads. Base frequency is 2.9 GHz, with boost up to 4.3 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 13,029 points. Launch price was $155.

Ryzen 9 9900X

The Ryzen 9 9900X is manufactured by AMD. It was released in 15 August 2024 (1 year ago). It is based on the Granite Ridge (2024−2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.4 GHz, with boost up to 5.6 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5. Passmark benchmark score: 54,530 points. Launch price was $499.

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Processing Power

The Core i5-10400F packs 6 cores / 12 threads, while the Ryzen 9 9900X offers 12 cores / 24 threads — the Ryzen 9 9900X has 6 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 5.6 GHz on the Ryzen 9 9900X — a 26.3% clock advantage for the Ryzen 9 9900X (base: 2.9 GHz vs 4.4 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Ryzen 9 9900X uses Granite Ridge (2024−2025) (4 nm). In PassMark, the Core i5-10400F scores 13,029 against the Ryzen 9 9900X's 54,530 — a 122.9% lead for the Ryzen 9 9900X. Cinebench R23 multi-core: 8,191 vs 33,003 (120.5% advantage for the Ryzen 9 9900X). Geekbench 6 single-core — the metric most relevant to gaming — records 1,454 vs 3,401, a 80.2% lead for the Ryzen 9 9900X that directly translates to higher frame rates. Multi-core Geekbench: 5,783 vs 19,756 (109.4% advantage for the Ryzen 9 9900X). L3 cache: 12 MB (total) on the Core i5-10400F vs 64 MB (total) on the Ryzen 9 9900X.

Feature	Core i5-10400F	Ryzen 9 9900X
Cores / Threads	6 / 12	12 / 24+100%
Boost Clock	4.3 GHz	5.6 GHz+30%
Base Clock	2.9 GHz	4.4 GHz+52%
L3 Cache	12 MB (total)	64 MB (total)+433%
L2 Cache	256K (per core)+25500%	1 MB (per core)
Process	14 nm	4 nm-71%
Architecture	Comet Lake (2020−2025)	Granite Ridge (2024−2025)
PassMark	13,029	54,530+319%
Cinebench R23 Multi	8,191	33,003+303%
Geekbench 6 Single	1,454	3,401+134%
Geekbench 6 Multi	5,783	19,756+242%

🧠

Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Ryzen 9 9900X uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i5-10400F versus DDR5-5600 on the Ryzen 9 9900X — the Ryzen 9 9900X supports 110.1% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 9900X supports up to 256 GB of RAM compared to 128 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core i5-10400F) vs 24 (Ryzen 9 9900X) — the Ryzen 9 9900X offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F) and A620,B650,X670,X870 (Ryzen 9 9900X).

Feature	Core i5-10400F	Ryzen 9 9900X
Socket	LGA1200	AM5
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2666	DDR5-5600+110%
Max RAM Capacity	128 GB	256 GB+100%
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	16	24+50%

🔧

Advanced Features

Only the Ryzen 9 9900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Ryzen 9 9900X supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i5-10400F) vs AMD-V (Ryzen 9 9900X). The Ryzen 9 9900X includes integrated graphics (Radeon 610M), while the Core i5-10400F requires a dedicated GPU. Primary use case: Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.

Feature	Core i5-10400F	Ryzen 9 9900X
Integrated GPU	No	Yes
IGPU Model	—	Radeon 610M
Unlocked	No	Yes
AVX-512	No	Yes
Virtualization	VT-x, VT-d	AMD-V
Target Use	Gaming	—

💰

Value Analysis

At launch, the Core i5-10400F was priced at $160, while the Ryzen 9 9900X came in at $499. On launch pricing ($160 vs $499), Core i5-10400F was $339 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-10400F delivers 81.4 pts/$ vs 109.3 pts/$ for the Ryzen 9 9900X — making the Ryzen 9 9900X the 29.2% better value option.

Feature	Core i5-10400F	Ryzen 9 9900X
MSRP	$160-68%	$499
Performance per Dollar	81.4	109.3+34%
Release Date	2020	2024

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