Core i5-12400F vs Core i7-1260U

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 i5-12400F vs Core i7-1260U 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 i5-12400F vs Core i7-1260U: Pros, Cons & Final Verdict

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

Core i5-12400F

2022

Why buy it

✅+47.7% higher Cinebench R23 multi-core.
✅+50% larger total L3 cache (18 MB vs 12 MB).
✅42.9% more PCIe lanes (20 vs 14) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Core i7-1260U.

Trade-offs

❌Lower Geekbench single-core performance for gaming (1,700 vs 2,294).
❌Launch MSRP is still $174 MSRP, while Core i7-1260U mostly shows up through inconsistent older-market listings.
❌584.2% higher power demand at 65W vs 9.5W.
❌No integrated graphics, while Core i7-1260U can still boot and troubleshoot without a discrete GPU.

Core i7-1260U

2022

Why buy it

✅+34.9% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅Draws 10W instead of 65W, a 56W reduction.
✅Integrated graphics onboard with Iris Xe Graphics (96 EU), while Core i5-12400F needs a discrete GPU.

Trade-offs

❌Lower Cinebench R23 multi-core (8,381 vs 12,380).
❌Smaller total L3 cache (12 MB vs 18 MB).
❌No boxed cooler included, unlike Core i5-12400F.

Quick Answers

So, is Core i5-12400F better than Core i7-1260U?

It depends on what you want from the system. For gaming, Core i7-1260U is ahead with a 2.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i5-12400F pulls ahead with 47.7% better Cinebench R23 multi-core. Core i5-12400F also has the bigger cache pool with 50% larger total L3 cache (18 MB vs 12 MB).

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

For streaming, content creation, and heavier multitasking, Core i5-12400F is the stronger fit. You are getting 47.7% better Cinebench R23 multi-core, backed by 6 cores and 12 threads. It also has the larger cache pool with 50% larger total L3 cache (18 MB vs 12 MB).

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

Core i5-12400F is the better buy right now. Core i5-12400F comes in at an unclear MSRP at $174 MSRP versus unclear MSRP, and it still gives you 47.7% better Cinebench R23 multi-core. The compromise is that Core i7-1260U is still the better pure gaming CPU with a 2.3% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (112.3 vs 0.0 PassMark/$), 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 i7-1260U is the safer long-term CPU choice because it gives you more room to grow and a better platform outlook.

Core i5-12400F vs Core i7-1260U Technical Specifications

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

Core i5-12400F

The Core i5-12400F is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 19,532 points. Launch price was $180.

Core i7-1260U

The Core i7-1260U 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 1.1 GHz, with boost up to 4.7 GHz. L3 cache: 12 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1781. Thermal design power (TDP): 9.5 MB + 12 MB. Memory support: DDR4, DDR5. Passmark benchmark score: 13,614 points. Launch price was $149.

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Processing Power

The Core i5-12400F packs 6 cores / 12 threads, while the Core i7-1260U offers 10 cores / 12 threads — the Core i7-1260U has 4 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 4.7 GHz on the Core i7-1260U — a 6.6% clock advantage for the Core i7-1260U (base: 2.5 GHz vs 1.1 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Core i7-1260U uses Alder Lake-U (2022) (Intel 7 nm). In PassMark, the Core i5-12400F scores 19,532 against the Core i7-1260U's 13,614 — a 35.7% lead for the Core i5-12400F. Cinebench R23 multi-core: 12,380 vs 8,381 (38.5% advantage for the Core i5-12400F). Geekbench 6 single-core — the metric most relevant to gaming — records 1,700 vs 2,294, a 29.7% lead for the Core i7-1260U that directly translates to higher frame rates. Multi-core Geekbench: 657 vs 8,140 (170.1% advantage for the Core i7-1260U). L3 cache: 18 MB (total) on the Core i5-12400F vs 12 MB (total) on the Core i7-1260U.

Feature	Core i5-12400F	Core i7-1260U
Cores / Threads	6 / 12	10 / 12+67%
Boost Clock	4.4 GHz	4.7 GHz+7%
Base Clock	2.5 GHz+127%	1.1 GHz
L3 Cache	18 MB (total)+50%	12 MB (total)
L2 Cache	1.25 MB (per core)	1.25 MB (per core)
Process	Intel 7 nm	Intel 7 nm
Architecture	Alder Lake-S (2022)	Alder Lake-U (2022)
PassMark	19,532+43%	13,614
Cinebench R23 Multi	12,380+48%	8,381
Geekbench 6 Single	1,700	2,294+35%
Geekbench 6 Multi	657	8,140+1139%

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Memory & Platform

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Core i7-1260U uses FCBGA1781 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-4800, DDR4-3200 memory speed. The Core i5-12400F supports up to 128 GB of RAM compared to 64 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i5-12400F) vs 14 (Core i7-1260U) — the Core i5-12400F offers 6 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and SoC (Core i7-1260U).

Feature	Core i5-12400F	Core i7-1260U
Socket	LGA1700	FCBGA1781
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR5-4800, DDR4-3200	DDR5-4800
Max RAM Capacity	128 GB+100%	64 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	20+43%	14

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Advanced Features

Both support VT-x, VT-d, EPT virtualization. The Core i7-1260U includes integrated graphics (Iris Xe Graphics (96 EU)), while the Core i5-12400F requires a dedicated GPU. Primary use case: Core i5-12400F targets Gaming Performance/Value, Core i7-1260U targets Productivity. Direct competitor: Core i5-12400F rivals Ryzen 5 5600; Core i7-1260U rivals Core i7-1165G7.

Feature	Core i5-12400F	Core i7-1260U
Integrated GPU	No	Yes
IGPU Model	—	Iris Xe Graphics (96 EU)
Unlocked	—	No
AVX-512	—	No
Virtualization	VT-x, VT-d, EPT	VT-x, VT-d, EPT
Target Use	Gaming Performance/Value	Productivity