Core i5-10400F vs Core i7-1265U

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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Core i5-10400F

2020

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Core i7-1265U.

Trade-offs

❌Lower PassMark (13,029 vs 13,282).
❌Launch MSRP is still $160 MSRP, while Core i7-1265U mostly shows up through inconsistent older-market listings.
❌333.3% higher power demand at 65W vs 15W.
❌Older platform position on LGA1200 with DDR4, while Core i7-1265U moves to FCBGA1744 and DDR5.

Core i7-1265U

2022

Why buy it

✅Draws 15W instead of 65W, a 50W reduction.
✅Newer platform on FCBGA1744 with DDR5 support instead of LGA1200 and DDR4.

Trade-offs

❌No boxed cooler included, unlike Core i5-10400F.

Core i5-10400F

2020

Core i7-1265U

2022

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Core i7-1265U.

Why buy it

✅Draws 15W instead of 65W, a 50W reduction.
✅Newer platform on FCBGA1744 with DDR5 support instead of LGA1200 and DDR4.

Trade-offs

❌Lower PassMark (13,029 vs 13,282).
❌Launch MSRP is still $160 MSRP, while Core i7-1265U mostly shows up through inconsistent older-market listings.
❌333.3% higher power demand at 65W vs 15W.
❌Older platform position on LGA1200 with DDR4, while Core i7-1265U moves to FCBGA1744 and DDR5.

Trade-offs

❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Core i7-1265U better than Core i5-10400F?

Yes. Core i7-1265U is the better overall CPU here. You are getting a 1.2% average FPS lead across 4 shared CPU game tests in our data, 1.9% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Core i7-1265U is the better pick here. According to our tests, it delivers 1.2% more average FPS across 4 shared CPU game tests.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Core i7-1265U is the better fit. You are getting 1.9% better PassMark, backed by 10 cores and 12 threads.

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

Core i7-1265U is still the faster CPU overall, but Core i5-10400F makes more sense if price matters more than absolute performance. Core i7-1265U is at an unclear MSRP at unclear MSRP versus $160 MSRP, and it gives you a 1.2% average FPS lead across 4 shared CPU game tests in our data. Core i5-10400F is also 100.0% better value on MSRP (81.4 vs 0.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Core i7-1265U is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2020), a healthier platform with FCBGA1744 and DDR5 instead of LGA1200, and more multi-core headroom with 10 cores / 12 threads instead of 6/12. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Core i5-10400F Benchmark Check

Core i7-1265U Benchmark Check

Path of Exile 2

Preset	Core i5-10400F	Core i7-1265U
1080p
low	192 FPS	280 FPS
medium	152 FPS	250 FPS
high	123 FPS	212 FPS
ultra	100 FPS	182 FPS
1440p
low	153 FPS	234 FPS
medium	119 FPS	188 FPS
high	97 FPS	155 FPS
ultra	79 FPS	136 FPS
4K
low	82 FPS	164 FPS
medium	70 FPS	133 FPS
high	55 FPS	103 FPS
ultra	43 FPS	90 FPS

Open Core i5-10400F Open Core i7-1265U

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-10400F	Core i7-1265U
1080p
low	326 FPS	224 FPS
medium	318 FPS	185 FPS
high	290 FPS	167 FPS
ultra	253 FPS	147 FPS
1440p
low	326 FPS	190 FPS
medium	292 FPS	162 FPS
high	267 FPS	150 FPS
ultra	234 FPS	129 FPS
4K
low	309 FPS	148 FPS
medium	258 FPS	130 FPS
high	235 FPS	124 FPS
ultra	199 FPS	107 FPS

Open Core i5-10400F Open Core i7-1265U

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-10400F	Core i7-1265U
1080p
low	326 FPS	332 FPS
medium	326 FPS	332 FPS
high	326 FPS	332 FPS
ultra	326 FPS	332 FPS
1440p
low	326 FPS	332 FPS
medium	326 FPS	332 FPS
high	326 FPS	332 FPS
ultra	326 FPS	332 FPS
4K
low	326 FPS	332 FPS
medium	326 FPS	332 FPS
high	289 FPS	332 FPS
ultra	229 FPS	332 FPS

Open Core i5-10400F Open Core i7-1265U

League of Legends

League of Legends

Valorant

Preset	Core i5-10400F	Core i7-1265U
1080p
low	326 FPS	332 FPS
medium	326 FPS	332 FPS
high	326 FPS	332 FPS
ultra	326 FPS	332 FPS
1440p
low	326 FPS	332 FPS
medium	326 FPS	332 FPS
high	326 FPS	332 FPS
ultra	326 FPS	332 FPS
4K
low	326 FPS	332 FPS
medium	326 FPS	332 FPS
high	326 FPS	332 FPS
ultra	326 FPS	332 FPS

Open Core i5-10400F Open Core i7-1265U

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-10400F and Core i7-1265U

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 i7-1265U

The Core i7-1265U is manufactured by Intel. It was released in 23 February 2022 (3 years ago). It is based on the Alder Lake-U (2022) architecture. It features 10 cores and 12 threads. Base frequency is 1.8 GHz, with boost up to 4.8 GHz. L3 cache: 12 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 15 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 13,282 points. Launch price was $149.

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Processing Power

The Core i5-10400F packs 6 cores / 12 threads, while the Core i7-1265U offers 10 cores / 12 threads — the Core i7-1265U has 4 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 4.8 GHz on the Core i7-1265U — a 11% clock advantage for the Core i7-1265U (base: 2.9 GHz vs 1.8 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Core i7-1265U uses Alder Lake-U (2022) (Intel 7 nm). In PassMark, the Core i5-10400F scores 13,029 against the Core i7-1265U's 13,282 — a 1.9% lead for the Core i7-1265U. Both processors carry 12 MB (total) of L3 cache.

Feature	Core i5-10400F	Core i7-1265U
Cores / Threads	6 / 12	10 / 12+67%
Boost Clock	4.3 GHz	4.8 GHz+12%
Base Clock	2.9 GHz+61%	1.8 GHz
L3 Cache	12 MB (total)	12 MB (total)
L2 Cache	256K (per core)	1.25 MB (per core)+400%
Process	14 nm	Intel 7 nm-50%
Architecture	Comet Lake (2020−2025)	Alder Lake-U (2022)
PassMark	13,029	13,282+2%
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 i7-1265U uses FCBGA1744 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i5-10400F	Core i7-1265U
Socket	LGA1200	FCBGA1744
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 i7-1265U). Primary use case: Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.