Core i5-10400F vs Core Ultra 5 115U

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 Core Ultra 5 115U 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 Core Ultra 5 115U: 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: +10.9% higher average FPS across 50 shared CPU benchmark tests.
✅+20% larger total L3 cache (12 MB vs 10 MB).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Core Ultra 5 115U.

Trade-offs

❌Launch MSRP is still $160 MSRP, while Core Ultra 5 115U mostly shows up through inconsistent older-market listings.
❌Older platform position on LGA1200 with DDR4, while Core Ultra 5 115U moves to FCBGA2049 and DDR5.

Core Ultra 5 115U

2023

Why buy it

✅Newer platform on FCBGA2049 with DDR5 support instead of LGA1200 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-10400F across 50 shared CPU benchmark tests.
❌Lower PassMark (11,518 vs 13,029).
❌Smaller total L3 cache (10 MB vs 12 MB).
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Core i5-10400F better than Core Ultra 5 115U?

Yes. Core i5-10400F is the better all-around CPU here. It gives you a 10.9% average FPS lead across 50 shared CPU game tests in our data and 13.1% better PassMark, 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 10.9% 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, Core i5-10400F is the stronger fit. You are getting 13.1% better PassMark, backed by 6 cores and 12 threads. It also has the larger cache pool with 20% larger total L3 cache (12 MB vs 10 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 at an unclear MSRP at $160 MSRP versus unclear MSRP, and it still gives you a 10.9% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (81.4 vs 0.0 PassMark/$), 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 Ultra 5 115U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020) and a healthier platform with FCBGA2049 and DDR5 instead of LGA1200. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-10400F vs Core Ultra 5 115U 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.

Core Ultra 5 115U

The Core Ultra 5 115U is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Meteor Lake (2023) architecture. It features 8 cores and 10 threads. Base frequency is 1.5 GHz, with boost up to 4.2 GHz. L3 cache: 10 MB (total). L2 cache: 2 MB (per core). Built on 7 nm process technology. Socket: FCBGA2049. Thermal design power (TDP): + 10 MB. Memory support: DDR5 Depends on motherboard. Passmark benchmark score: 11,518 points. Launch price was $149.

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Processing Power

The Core i5-10400F packs 6 cores / 12 threads, while the Core Ultra 5 115U offers 8 cores / 10 threads — the Core Ultra 5 115U has 2 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 4.2 GHz on the Core Ultra 5 115U — a 2.4% clock advantage for the Core i5-10400F (base: 2.9 GHz vs 1.5 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Core Ultra 5 115U uses Meteor Lake (2023) (7 nm). In PassMark, the Core i5-10400F scores 13,029 against the Core Ultra 5 115U's 11,518 — a 12.3% lead for the Core i5-10400F. L3 cache: 12 MB (total) on the Core i5-10400F vs 10 MB (total) on the Core Ultra 5 115U.

Feature	Core i5-10400F	Core Ultra 5 115U
Cores / Threads	6 / 12	8 / 10+33%
Boost Clock	4.3 GHz+2%	4.2 GHz
Base Clock	2.9 GHz+93%	1.5 GHz
L3 Cache	12 MB (total)+20%	10 MB (total)
L2 Cache	256K (per core)+12700%	2 MB (per core)
Process	14 nm	7 nm-50%
Architecture	Comet Lake (2020−2025)	Meteor Lake (2023)
PassMark	13,029+13%	11,518
Cinebench R23 Multi	8,191	—
Geekbench 6 Single	1,454	—
Geekbench 6 Multi	5,783	—

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Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Core Ultra 5 115U uses FCBGA2049 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i5-10400F	Core Ultra 5 115U
Socket	LGA1200	FCBGA2049
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2666	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i5-10400F) / not specified (Core Ultra 5 115U). Primary use case: Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.