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 i9-12900HK 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 i9-12900HK: 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

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-12900HK across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (12,380 vs 18,197).
❌Smaller total L3 cache (18 MB vs 24 MB).
❌Launch MSRP is still $174 MSRP, while Core i9-12900HK mostly shows up through inconsistent older-market listings.
❌44.4% higher power demand at 65W vs 45W.

Core i9-12900HK

2022

Why buy it

✅Better for gaming: +14.3% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (24 MB vs 18 MB).
✅Draws 45W instead of 65W, a 20W reduction.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Iris Xe Graphics G7 (96EUs), while Core i5-12400F needs a discrete GPU.

Trade-offs

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

Quick Answers

So, is Core i9-12900HK better than Core i5-12400F?

Yes. Core i9-12900HK is the better all-around CPU here. It gives you a 14.3% average FPS lead across 50 shared CPU game tests in our data, 47% better Cinebench R23 multi-core, 30.6% 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 i9-12900HK is the better pick. According to our tests, it delivers 14.3% 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 i9-12900HK is the stronger fit. You are getting 47% better Cinebench R23 multi-core, backed by 14 cores and 20 threads. It also has the larger cache pool with 33.3% larger total L3 cache (24 MB vs 18 MB).

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

Core i9-12900HK is still the faster CPU overall, but Core i5-12400F is easier to justify if budget matters more than peak performance. Core i9-12900HK comes in at an unclear MSRP at unclear MSRP versus $174 MSRP, and it still gives you a 14.3% average FPS lead across 50 shared CPU game tests in our data. Core i5-12400F is also 100.0% better value on MSRP (112.3 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Core i9-12900HK makes more sense long term for 2026 and beyond. You are getting 33.3% larger total L3 cache (24 MB vs 18 MB) and more multi-core headroom with 14 cores / 20 threads instead of 6/12. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Core i5-12400F vs Core i9-12900HK 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 i9-12900HK

The Core i9-12900HK is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-H (2022) architecture. It features 14 cores and 20 threads. Base frequency is 2.5 GHz, with boost up to 5 GHz. L3 cache: 24 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: FCBGA1744. Thermal design power (TDP): 45 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 25,512 points. Launch price was $299.

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Processing Power

The Core i5-12400F packs 6 cores / 12 threads, while the Core i9-12900HK offers 14 cores / 20 threads — the Core i9-12900HK has 8 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 5 GHz on the Core i9-12900HK — a 12.8% clock advantage for the Core i9-12900HK (base: 2.5 GHz vs 2.5 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Core i9-12900HK uses Alder Lake-H (2022) (Intel 7 nm). In PassMark, the Core i5-12400F scores 19,532 against the Core i9-12900HK's 25,512 — a 26.6% lead for the Core i9-12900HK. Cinebench R23 multi-core: 12,380 vs 18,197 (38% advantage for the Core i9-12900HK). Geekbench 6 single-core — the metric most relevant to gaming — records 1,700 vs 1,938, a 13.1% lead for the Core i9-12900HK that directly translates to higher frame rates. Multi-core Geekbench: 657 vs 13,317 (181.2% advantage for the Core i9-12900HK). L3 cache: 18 MB (total) on the Core i5-12400F vs 24 MB (total) on the Core i9-12900HK.

Feature	Core i5-12400F	Core i9-12900HK
Cores / Threads	6 / 12	14 / 20+133%
Boost Clock	4.4 GHz	5 GHz+14%
Base Clock	2.5 GHz	2.5 GHz
L3 Cache	18 MB (total)	24 MB (total)+33%
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-H (2022)
PassMark	19,532	25,512+31%
Cinebench R23 Multi	12,380	18,197+47%
Geekbench 6 Single	1,700	1,938+14%
Geekbench 6 Multi	657	13,317+1927%

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Memory & Platform

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Core i9-12900HK uses FCBGA1744 (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 28 (Core i9-12900HK) — the Core i9-12900HK offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and BGA1744 (Core i9-12900HK).

Feature	Core i5-12400F	Core i9-12900HK
Socket	LGA1700	FCBGA1744
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR5-4800, DDR4-3200	DDR5-4800, DDR4-3200
Max RAM Capacity	128 GB+100%	64 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	20	28+40%

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Advanced Features

Both support VT-x, VT-d, EPT virtualization. The Core i9-12900HK includes integrated graphics (Iris Xe Graphics G7 (96EUs)), while the Core i5-12400F requires a dedicated GPU. Primary use case: Core i5-12400F targets Gaming Performance/Value, Core i9-12900HK targets Enthusiast Gaming Laptop. Direct competitor: Core i5-12400F rivals Ryzen 5 5600; Core i9-12900HK rivals Ryzen 9 6900HX.

Feature	Core i5-12400F	Core i9-12900HK
Integrated GPU	No	Yes
IGPU Model	—	Iris Xe Graphics G7 (96EUs)
Unlocked	—	Yes
AVX-512	—	No
Virtualization	VT-x, VT-d, EPT	VT-x, VT-d, EPT
Target Use	Gaming Performance/Value	Enthusiast Gaming Laptop