Core i5-12400F vs Ryzen 9 5900H

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 i5-12400F

2022

Why buy it

✅Better for gaming: +5.0% higher average FPS across 39 shared CPU benchmark tests.
✅Newer platform on LGA1700 with DDR5 support instead of FP6 and older memory support.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Ryzen 9 5900H.

Trade-offs

❌Launch MSRP is still $174 MSRP, while Ryzen 9 5900H mostly shows up through inconsistent older-market listings.
❌44.4% higher power demand at 65W vs 45W.

Ryzen 9 5900H

2021

Why buy it

✅Draws 45W instead of 65W, a 20W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-12400F across 39 shared CPU benchmark tests.
❌Lower PassMark (13,510 vs 19,532).
❌Older platform position on FP6, while Core i5-12400F moves to LGA1700 and DDR5.
❌No boxed cooler included, unlike Core i5-12400F.

Core i5-12400F

2022

Ryzen 9 5900H

2021

Why buy it

✅Better for gaming: +5.0% higher average FPS across 39 shared CPU benchmark tests.
✅Newer platform on LGA1700 with DDR5 support instead of FP6 and older memory support.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Ryzen 9 5900H.

Why buy it

✅Draws 45W instead of 65W, a 20W reduction.

Trade-offs

❌Launch MSRP is still $174 MSRP, while Ryzen 9 5900H mostly shows up through inconsistent older-market listings.
❌44.4% higher power demand at 65W vs 45W.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-12400F across 39 shared CPU benchmark tests.
❌Lower PassMark (13,510 vs 19,532).
❌Older platform position on FP6, while Core i5-12400F moves to LGA1700 and DDR5.
❌No boxed cooler included, unlike Core i5-12400F.

Quick Answers

So, is Core i5-12400F better than Ryzen 9 5900H?

Yes. Core i5-12400F is the better overall CPU here. You are getting a 5.0% average FPS lead across 39 shared CPU game tests in our data, 44.6% 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 i5-12400F is the better pick here. According to our tests, it delivers 5.0% more average FPS across 39 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Core i5-12400F is the better fit. You are getting 44.6% better PassMark, backed by 6 cores and 12 threads.

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

Core i5-12400F is the smarter buy today. Core i5-12400F is at an unclear MSRP at $174 MSRP versus unclear MSRP, and it gives you a 5.0% average FPS lead across 39 shared CPU game tests in our data. It is also 100.0% better value on MSRP (112.3 vs 0.0 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Core i5-12400F is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2021), a healthier platform with LGA1700 and DDR5 instead of FP6, and more multi-core headroom with 6 cores / 12 threads instead of 8/16. 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 i5-12400F Benchmark Check

Ryzen 9 5900H Benchmark Check

Path of Exile 2

Preset	Core i5-12400F	Ryzen 9 5900H
1080p
low	183 FPS	181 FPS
medium	168 FPS	147 FPS
high	139 FPS	122 FPS
ultra	119 FPS	99 FPS
1440p
low	153 FPS	147 FPS
medium	132 FPS	116 FPS
high	106 FPS	95 FPS
ultra	89 FPS	78 FPS
4K
low	87 FPS	81 FPS
medium	81 FPS	69 FPS
high	64 FPS	55 FPS
ultra	49 FPS	43 FPS

Open Core i5-12400F Open Ryzen 9 5900H

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-12400F	Ryzen 9 5900H
1080p
low	471 FPS	338 FPS
medium	397 FPS	338 FPS
high	341 FPS	327 FPS
ultra	301 FPS	288 FPS
1440p
low	407 FPS	338 FPS
medium	351 FPS	338 FPS
high	309 FPS	300 FPS
ultra	265 FPS	256 FPS
4K
low	282 FPS	278 FPS
medium	248 FPS	246 FPS
high	229 FPS	227 FPS
ultra	196 FPS	197 FPS

Open Core i5-12400F Open Ryzen 9 5900H

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-12400F	Ryzen 9 5900H
1080p
low	488 FPS	338 FPS
medium	488 FPS	338 FPS
high	488 FPS	338 FPS
ultra	488 FPS	338 FPS
1440p
low	488 FPS	338 FPS
medium	488 FPS	338 FPS
high	485 FPS	338 FPS
ultra	434 FPS	338 FPS
4K
low	442 FPS	338 FPS
medium	389 FPS	338 FPS
high	337 FPS	326 FPS
ultra	274 FPS	259 FPS

Open Core i5-12400F Open Ryzen 9 5900H

League of Legends

League of Legends

Valorant

Preset	Core i5-12400F	Ryzen 9 5900H
1080p
low	488 FPS	338 FPS
medium	488 FPS	338 FPS
high	488 FPS	338 FPS
ultra	488 FPS	338 FPS
1440p
low	488 FPS	338 FPS
medium	488 FPS	338 FPS
high	488 FPS	338 FPS
ultra	473 FPS	338 FPS
4K
low	488 FPS	338 FPS
medium	450 FPS	338 FPS
high	391 FPS	338 FPS
ultra	330 FPS	338 FPS

Open Core i5-12400F Open Ryzen 9 5900H

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-12400F and Ryzen 9 5900H

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.

Ryzen 9 5900H

The Ryzen 9 5900H is manufactured by AMD. It was released in 7 January 2021 (4 years ago). It is based on the Cezanne U (Zen 3) (2021−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 4.6 GHz. L3 cache: 16 MB. L2 cache: 4 MB. Built on 7 nm process technology. Socket: FP6. Thermal design power (TDP): 45 Watt. Passmark benchmark score: 13,510 points. Launch price was $149.

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Processing Power

The Core i5-12400F packs 6 cores / 12 threads, while the Ryzen 9 5900H offers 8 cores / 16 threads — the Ryzen 9 5900H has 2 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 4.6 GHz on the Ryzen 9 5900H — a 4.4% clock advantage for the Ryzen 9 5900H (base: 2.5 GHz vs 3.3 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Ryzen 9 5900H uses Cezanne U (Zen 3) (2021−2022) (7 nm). In PassMark, the Core i5-12400F scores 19,532 against the Ryzen 9 5900H's 13,510 — a 36.5% lead for the Core i5-12400F. L3 cache: 18 MB (total) on the Core i5-12400F vs 16 MB on the Ryzen 9 5900H.

Feature	Core i5-12400F	Ryzen 9 5900H
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	4.4 GHz	4.6 GHz+5%
Base Clock	2.5 GHz	3.3 GHz+32%
L3 Cache	18 MB (total)+13%	16 MB
L2 Cache	1.25 MB (per core)	4 MB+220%
Process	Intel 7 nm	7 nm
Architecture	Alder Lake-S (2022)	Cezanne U (Zen 3) (2021−2022)
PassMark	19,532+45%	13,510
Cinebench R23 Multi	12,380	—
Geekbench 6 Single	1,700	—
Geekbench 6 Multi	657	—

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Memory & Platform

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Ryzen 9 5900H uses FP6 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i5-12400F	Ryzen 9 5900H
Socket	LGA1700	FP6
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR5-4800, DDR4-3200	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

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Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i5-12400F) / not specified (Ryzen 9 5900H). Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.