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 Pentium U5400 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 Pentium U5400: 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

✅Better for gaming: +462.8% higher average FPS across 50 shared CPU benchmark tests.
✅+300% larger total L3 cache (12 MB vs 3 MB).
✅Costs $129 less on MSRP ($160 MSRP vs $289 MSRP).
✅Delivers 1730.0% more PassMark for each dollar spent, at 81.4 vs 4.4 PassMark/$ ($160 MSRP vs $289 MSRP).
✅Includes a boxed cooler (Yes), unlike Pentium U5400.

Trade-offs

❌261.1% higher power demand at 65W vs 18W.
❌No integrated graphics, while Pentium U5400 can still boot and troubleshoot without a discrete GPU.

Pentium U5400

2010

Why buy it

✅Draws 18W instead of 65W, a 47W reduction.
✅Integrated graphics onboard with Intel HD Graphics (Ironlake), while Core i5-10400F needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-10400F across 50 shared CPU benchmark tests.
❌Lower Geekbench multi-core (300 vs 5,783).
❌Smaller total L3 cache (3 MB vs 12 MB).
❌Lower PassMark per dollar, at 4.4 vs 81.4 PassMark/$ ($289 MSRP vs $160 MSRP).
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Core i5-10400F better than Pentium U5400?

Yes. Core i5-10400F is the better all-around CPU here. It gives you a 462.8% average FPS lead across 50 shared CPU game tests in our data, 1827.7% better Geekbench multi-core, 913.1% 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 462.8% 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 1827.7% better Geekbench multi-core, backed by 6 cores and 12 threads. It also has the larger cache pool with 300% larger total L3 cache (12 MB vs 3 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 $129 cheaper on MSRP at $160 MSRP versus $289 MSRP, and it still gives you a 462.8% average FPS lead across 50 shared CPU game tests in our data. It is also 1730.0% better value on MSRP (81.4 vs 4.4 PassMark/$), 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 2010), 300% larger total L3 cache (12 MB vs 3 MB), and more multi-core headroom with 6 cores / 12 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i5-10400F vs Pentium U5400 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.

Pentium U5400

The Pentium U5400 is manufactured by Intel. It was released in 2007-01-01. It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 2 threads. Base frequency is 1.2 GHz, with boost up to 1.2 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: BGA1288. Thermal design power (TDP): 18 Watt. Memory support: DDR3. Passmark benchmark score: 1,286 points. Launch price was $69.

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Processing Power

The Core i5-10400F packs 6 cores / 12 threads, while the Pentium U5400 offers 2 cores / 2 threads — the Core i5-10400F has 4 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 1.2 GHz on the Pentium U5400 — a 112.7% clock advantage for the Core i5-10400F (base: 2.9 GHz vs 1.2 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Pentium U5400 uses Arrandale (2010−2011) (32 nm). In PassMark, the Core i5-10400F scores 13,029 against the Pentium U5400's 1,286 — a 164.1% lead for the Core i5-10400F. Geekbench 6 single-core — the metric most relevant to gaming — records 1,454 vs 170, a 158.1% lead for the Core i5-10400F that directly translates to higher frame rates. Multi-core Geekbench: 5,783 vs 300 (180.3% advantage for the Core i5-10400F). L3 cache: 12 MB (total) on the Core i5-10400F vs 3 MB (total) on the Pentium U5400.

Feature	Core i5-10400F	Pentium U5400
Cores / Threads	6 / 12+200%	2 / 2
Boost Clock	4.3 GHz+258%	1.2 GHz
Base Clock	2.9 GHz+142%	1.2 GHz
L3 Cache	12 MB (total)+300%	3 MB (total)
L2 Cache	256K (per core)	256K (per core)
Process	14 nm-56%	32 nm
Architecture	Comet Lake (2020−2025)	Arrandale (2010−2011)
PassMark	13,029+913%	1,286
Cinebench R23 Multi	8,191	—
Geekbench 6 Single	1,454+755%	170
Geekbench 6 Multi	5,783+1828%	300

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Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Pentium U5400 uses BGA1288 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i5-10400F versus DDR3-800 on the Pentium U5400 — the Core i5-10400F supports 233.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-10400F supports up to 128 GB of RAM compared to 8 GB — 1500% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F) and HM55 (Pentium U5400).

Feature	Core i5-10400F	Pentium U5400
Socket	LGA1200	BGA1288
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR4-2666+233%	DDR3-800
Max RAM Capacity	128 GB+1500%	8 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	16

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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Core i5-10400F) vs VT-x (Pentium U5400). The Pentium U5400 includes integrated graphics (Intel HD Graphics (Ironlake)), while the Core i5-10400F requires a dedicated GPU. Primary use case: Core i5-10400F targets Gaming, Pentium U5400 targets Legacy Budget Laptop. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.

Feature	Core i5-10400F	Pentium U5400
Integrated GPU	No	Yes
IGPU Model	—	Intel HD Graphics (Ironlake)
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x, VT-d	VT-x
Target Use	Gaming	Legacy Budget Laptop

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Value Analysis

At launch, the Core i5-10400F was priced at $160, while the Pentium U5400 came in at $289. On launch pricing ($160 vs $289), Core i5-10400F was $129 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-10400F delivers 81.4 pts/$ vs 4.4 pts/$ for the Pentium U5400 — making the Core i5-10400F the 179.3% better value option.

Feature	Core i5-10400F	Pentium U5400
MSRP	$160-45%	$289
Performance per Dollar	81.4+1750%	4.4
Release Date	2020	2010

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