Core i5-12400F vs Ryzen 9 9955HX3D

CPU

GPU

Core i5-12400F

6 Cores12 Thrd65 WWMax: 4.4 GHz2022

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Ryzen 9 9955HX3D

16 Cores32 Thrd55 WWMax: 5.4 GHz2025

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Core i5-12400F vs Ryzen 9 9955HX3D Performance Spectrum

Core i5-12400F

6 / 12

19,532

0.0%

61,578

+215.3%

Ryzen 7 7700

Ryzen Threadripper PRO 5945WX

Ryzen 9 PRO 7945

Ryzen Threadripper 3960X

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

Ryzen Threadripper PRO 7985WX

About PassMark

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 Ryzen 9 9955HX3D 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 Ryzen 9 9955HX3D: 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

✅Costs $575 less on MSRP ($174 MSRP vs $749 MSRP).
✅Delivers 36.5% more PassMark for each dollar spent, at 112.3 vs 82.2 PassMark/$ ($174 MSRP vs $749 MSRP).
✅Includes a boxed cooler (Yes), unlike Ryzen 9 9955HX3D.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 9955HX3D across 50 shared CPU benchmark tests.
❌Lower PassMark (19,532 vs 61,578).
❌18.2% higher power demand at 65W vs 55W.
❌No integrated graphics, while Ryzen 9 9955HX3D can still boot and troubleshoot without a discrete GPU.

Ryzen 9 9955HX3D

2025

Why buy it

✅Better for gaming: +26.3% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 65W, a 10W reduction.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.
✅Integrated graphics onboard with AMD Radeon 610M, while Core i5-12400F needs a discrete GPU.

Trade-offs

❌Lower PassMark per dollar, at 82.2 vs 112.3 PassMark/$ ($749 MSRP vs $174 MSRP).
❌No boxed cooler included, unlike Core i5-12400F.

Quick Answers

So, is Ryzen 9 9955HX3D better than Core i5-12400F?

Yes. Ryzen 9 9955HX3D is the better all-around CPU here. It gives you a 26.3% average FPS lead across 50 shared CPU game tests in our data, 215.3% better 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, Ryzen 9 9955HX3D is the better pick. According to our tests, it delivers 26.3% more average FPS across 50 shared CPU game tests. It also has a clear cache advantage at 128 MB versus 18 MB.

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

For streaming, content creation, and heavier multitasking, Ryzen 9 9955HX3D is the stronger fit. You are getting 215.3% better PassMark, backed by 16 cores and 32 threads. It also has the larger cache pool with 611.1% larger total L3 cache (128 MB vs 18 MB).

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

Ryzen 9 9955HX3D is still the faster CPU overall, but Core i5-12400F is easier to justify if budget matters more than peak performance. Ryzen 9 9955HX3D comes in 330.5% more expensive on MSRP at $749 MSRP versus $174 MSRP, and it still gives you a 26.3% average FPS lead across 50 shared CPU game tests in our data. Core i5-12400F is also 36.5% better value on MSRP (112.3 vs 82.2 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Ryzen 9 9955HX3D makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2022), 3D V-Cache and a much larger 128 MB L3 cache instead of 18 MB, and more multi-core headroom with 16 cores / 32 threads instead of 6/12. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-12400F vs Ryzen 9 9955HX3D 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.

Ryzen 9 9955HX3D

The Ryzen 9 9955HX3D is manufactured by AMD. It was released in 2025-01-01. It is based on the Fire Range-HX (Zen 5) (2025) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 5.4 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 61,578 points. Launch price was $700.

⚡

Processing Power

The Core i5-12400F packs 6 cores / 12 threads, while the Ryzen 9 9955HX3D offers 16 cores / 32 threads — the Ryzen 9 9955HX3D has 10 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 5.4 GHz on the Ryzen 9 9955HX3D — a 20.4% clock advantage for the Ryzen 9 9955HX3D (base: 2.5 GHz vs 2.5 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Ryzen 9 9955HX3D uses Fire Range-HX (Zen 5) (2025) (4 nm). In PassMark, the Core i5-12400F scores 19,532 against the Ryzen 9 9955HX3D's 61,578 — a 103.7% lead for the Ryzen 9 9955HX3D. L3 cache: 18 MB (total) on the Core i5-12400F vs 128 MB (total) on the Ryzen 9 9955HX3D.

Feature	Core i5-12400F	Ryzen 9 9955HX3D
Cores / Threads	6 / 12	16 / 32+167%
Boost Clock	4.4 GHz	5.4 GHz+23%
Base Clock	2.5 GHz	2.5 GHz
L3 Cache	18 MB (total)	128 MB (total)+611%
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	Intel 7 nm	4 nm-43%
Architecture	Alder Lake-S (2022)	Fire Range-HX (Zen 5) (2025)
PassMark	19,532	61,578+215%
Cinebench R23 Multi	12,380	—
Geekbench 6 Single	1,700	—
Geekbench 6 Multi	657	—

🧠

Memory & Platform

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Ryzen 9 9955HX3D uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-12400F versus 5600 on the Ryzen 9 9955HX3D — the Ryzen 9 9955HX3D supports 16.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-12400F supports up to 128 GB of RAM compared to 96 GB — 33.3% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i5-12400F) vs 28 (Ryzen 9 9955HX3D) — the Ryzen 9 9955HX3D offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and FL1 (Ryzen 9 9955HX3D).

Feature	Core i5-12400F	Ryzen 9 9955HX3D
Socket	LGA1700	FL1
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR5-4800, DDR4-3200	5600+17%
Max RAM Capacity	128 GB+33%	96 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	20	28+40%

🔧

Advanced Features

Virtualization support: VT-x, VT-d, EPT (Core i5-12400F) vs VT-x, VT-d, AMD-V (Ryzen 9 9955HX3D). The Ryzen 9 9955HX3D includes integrated graphics (AMD Radeon 610M), while the Core i5-12400F requires a dedicated GPU. Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600; Ryzen 9 9955HX3D rivals Core Ultra 9 185H.

Feature	Core i5-12400F	Ryzen 9 9955HX3D
Integrated GPU	No	Yes
IGPU Model	—	AMD Radeon 610M
Unlocked	—	Yes
AVX-512	—	Yes
Virtualization	VT-x, VT-d, EPT	VT-x, VT-d, AMD-V
Target Use	Gaming Performance/Value	—

💰

Value Analysis

At launch, the Core i5-12400F was priced at $174, while the Ryzen 9 9955HX3D came in at $749. On launch pricing ($174 vs $749), Core i5-12400F was $575 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400F delivers 112.3 pts/$ vs 82.2 pts/$ for the Ryzen 9 9955HX3D — making the Core i5-12400F the 30.9% better value option.

Feature	Core i5-12400F	Ryzen 9 9955HX3D
MSRP	$174-77%	$749
Performance per Dollar	112.3+37%	82.2
Release Date	2022	2025

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