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 i5-9600KF vs Core i5-10400F 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 i5-9600KF vs Core i5-10400F: Pros, Cons & Final Verdict

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

Core i5-9600KF

2019

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-10400F across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (7,301 vs 8,191).
❌Smaller total L3 cache (9 MB vs 12 MB).
❌Lower PassMark per dollar, at 40.6 vs 81.4 PassMark/$ ($262 MSRP vs $160 MSRP).
❌46.2% higher power demand at 95W vs 65W.

Core i5-10400F

2020

Why buy it

✅Better for gaming: +9.6% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (12 MB vs 9 MB).
✅Costs $102 less on MSRP ($160 MSRP vs $262 MSRP).
✅Delivers 100.4% more PassMark for each dollar spent, at 81.4 vs 40.6 PassMark/$ ($160 MSRP vs $262 MSRP).
✅Draws 65W instead of 95W, a 30W reduction.

Trade-offs

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

Quick Answers

So, is Core i5-10400F better than Core i5-9600KF?

Yes. Core i5-10400F is the better all-around CPU here. It gives you a 9.6% average FPS lead across 50 shared CPU game tests in our data, 12.2% better Cinebench R23 multi-core, 22.4% 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 i5-10400F is the better pick. According to our tests, it delivers 9.6% 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 i5-10400F is the stronger fit. You are getting 12.2% better Cinebench R23 multi-core, backed by 6 cores and 12 threads. It also has the larger cache pool with 33.3% larger total L3 cache (12 MB vs 9 MB).

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

Core i5-10400F is the better buy right now. Core i5-10400F comes in $102 cheaper on MSRP at $160 MSRP versus $262 MSRP, and it still gives you a 9.6% average FPS lead across 50 shared CPU game tests in our data. It is also 100.4% better value on MSRP (81.4 vs 40.6 PassMark/$), 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 i5-10400F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2019), 33.3% larger total L3 cache (12 MB vs 9 MB), and more multi-core headroom with 6 cores / 12 threads instead of 6/6. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i5-9600KF vs Core i5-10400F Technical Specifications

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

Core i5-9600KF

The Core i5-9600KF is manufactured by Intel. It was released in 8 January 2019 (6 years ago). It is based on the Coffee Lake (2017−2019) architecture. It features 6 cores and 6 threads. Base frequency is 3.7 GHz, with boost up to 4.6 GHz. L3 cache: 9 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4-2666. Passmark benchmark score: 10,646 points. Launch price was $262.

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.

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Processing Power

The Core i5-9600KF packs 6 cores / 6 threads, matching the Core i5-10400F's 6 cores. Boost clocks reach 4.6 GHz on the Core i5-9600KF versus 4.3 GHz on the Core i5-10400F — a 6.7% clock advantage for the Core i5-9600KF (base: 3.7 GHz vs 2.9 GHz). The Core i5-9600KF uses the Coffee Lake (2017−2019) architecture (14 nm), while the Core i5-10400F uses Comet Lake (2020−2025) (14 nm). In PassMark, the Core i5-9600KF scores 10,646 against the Core i5-10400F's 13,029 — a 20.1% lead for the Core i5-10400F. Cinebench R23 multi-core: 7,301 vs 8,191 (11.5% advantage for the Core i5-10400F). Geekbench 6 single-core — the metric most relevant to gaming — records 1,600 vs 1,454, a 9.6% lead for the Core i5-9600KF that directly translates to higher frame rates. Multi-core Geekbench: 6,200 vs 5,783 (7% advantage for the Core i5-9600KF). L3 cache: 9 MB (total) on the Core i5-9600KF vs 12 MB (total) on the Core i5-10400F.

Feature	Core i5-9600KF	Core i5-10400F
Cores / Threads	6 / 6	6 / 12
Boost Clock	4.6 GHz+7%	4.3 GHz
Base Clock	3.7 GHz+28%	2.9 GHz
L3 Cache	9 MB (total)	12 MB (total)+33%
L2 Cache	256K (per core)	256K (per core)
Process	14 nm	14 nm
Architecture	Coffee Lake (2017−2019)	Comet Lake (2020−2025)
PassMark	10,646	13,029+22%
Cinebench R23 Multi	7,301	8,191+12%
Geekbench 6 Single	1,600+10%	1,454
Geekbench 6 Multi	6,200+7%	5,783

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Memory & Platform

The Core i5-9600KF uses the LGA1151 socket (PCIe 3.0), while the Core i5-10400F uses LGA1200 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-2666 memory speed. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: H310,B360,B365,H370,Z370,Z390 (Core i5-9600KF) and H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F).

Feature	Core i5-9600KF	Core i5-10400F
Socket	LGA1151	LGA1200
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2666	DDR4-2666
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	16

🔧

Advanced Features

Only the Core i5-9600KF has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support VT-x, VT-d virtualization. Primary use case: Core i5-9600KF targets Desktop, Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.

Feature	Core i5-9600KF	Core i5-10400F
Integrated GPU	No	No
Unlocked	Yes	No
AVX-512	No	No
Virtualization	VT-x, VT-d	VT-x, VT-d
Target Use	Desktop	Gaming

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Value Analysis

At launch, the Core i5-9600KF was priced at $262, while the Core i5-10400F came in at $160. On launch pricing ($262 vs $160), Core i5-10400F was $102 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-9600KF delivers 40.6 pts/$ vs 81.4 pts/$ for the Core i5-10400F — making the Core i5-10400F the 66.8% better value option.

Feature	Core i5-9600KF	Core i5-10400F
MSRP	$262	$160-39%
Performance per Dollar	40.6	81.4+100%
Release Date	2019	2020

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