Atom x7809C vs Core i5-12400F

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.

Atom x7809C vs Core i5-12400F 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.

Atom x7809C vs Core i5-12400F: Pros, Cons & Final Verdict

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

Atom x7809C

2024

Why buy it

✅+608.8% higher Geekbench multi-core.
✅Draws 25W instead of 65W, a 40W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-12400F across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (6 MB vs 18 MB).
❌No boxed cooler included, unlike Core i5-12400F.

Core i5-12400F

2022

Why buy it

✅Better for gaming: +52.3% higher average FPS across 50 shared CPU benchmark tests.
✅+200% larger total L3 cache (18 MB vs 6 MB).
✅122.2% more PCIe lanes (20 vs 9) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Atom x7809C.

Trade-offs

❌Lower Geekbench multi-core (657 vs 4,657).
❌Launch MSRP is still $174 MSRP, while Atom x7809C mostly shows up through inconsistent older-market listings.
❌160% higher power demand at 65W vs 25W.

Quick Answers

So, is Atom x7809C better than Core i5-12400F?

It depends on what you want from the system. For gaming, Core i5-12400F is ahead with a 52.3% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Atom x7809C pulls ahead with 608.8% better Geekbench multi-core. Core i5-12400F also has the bigger cache pool with 200% larger total L3 cache (18 MB vs 6 MB).

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

For streaming, content creation, and heavier multitasking, Atom x7809C is the stronger fit. You are getting 608.8% better Geekbench multi-core, backed by 8 cores and 8 threads.

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

Atom x7809C is still the faster CPU overall, but Core i5-12400F is easier to justify if budget matters more than peak performance. Atom x7809C comes in at an unclear MSRP at unclear MSRP versus $174 MSRP, and it still gives you 608.8% better Geekbench multi-core. The compromise is that Core i5-12400F is still the better pure gaming CPU with a 52.3% average FPS lead across 50 shared CPU game tests in our data. Core i5-12400F is also 100.0% better value on MSRP (112.3 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Atom x7809C makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2022) and more multi-core headroom with 8 cores / 8 threads instead of 6/12. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Atom x7809C vs Core i5-12400F Technical Specifications

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

Atom x7809C

The Atom x7809C is manufactured by Intel. It was released in 8 April 2024 (1 year ago). It is based on the Amston Lake (2024−2025) architecture. It features 8 cores and 8 threads. Base frequency is 2 GHz, with boost up to 3.6 GHz. L3 cache: 6 MB (total). L2 cache: 2 MB (per module). Built on 10 nm process technology. Socket: FCBGA1264. Thermal design power (TDP): 25 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 9,409 points. Launch price was $117.

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.

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Processing Power

The Atom x7809C packs 8 cores / 8 threads, while the Core i5-12400F offers 6 cores / 12 threads — the Atom x7809C has 2 more cores. Boost clocks reach 3.6 GHz on the Atom x7809C versus 4.4 GHz on the Core i5-12400F — a 20% clock advantage for the Core i5-12400F (base: 2 GHz vs 2.5 GHz). The Atom x7809C uses the Amston Lake (2024−2025) architecture (10 nm), while the Core i5-12400F uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Atom x7809C scores 9,409 against the Core i5-12400F's 19,532 — a 70% lead for the Core i5-12400F. Geekbench 6 single-core — the metric most relevant to gaming — records 1,102 vs 1,700, a 42.7% lead for the Core i5-12400F that directly translates to higher frame rates. Multi-core Geekbench: 4,657 vs 657 (150.5% advantage for the Atom x7809C). L3 cache: 6 MB (total) on the Atom x7809C vs 18 MB (total) on the Core i5-12400F.

Feature	Atom x7809C	Core i5-12400F
Cores / Threads	8 / 8+33%	6 / 12
Boost Clock	3.6 GHz	4.4 GHz+22%
Base Clock	2 GHz	2.5 GHz+25%
L3 Cache	6 MB (total)	18 MB (total)+200%
L2 Cache	2 MB (per module)+60%	1.25 MB (per core)
Process	10 nm	Intel 7 nm-30%
Architecture	Amston Lake (2024−2025)	Alder Lake-S (2022)
PassMark	9,409	19,532+108%
Cinebench R23 Multi	—	12,380
Geekbench 6 Single	1,102	1,700+54%
Geekbench 6 Multi	4,657+609%	657

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Memory & Platform

The Atom x7809C uses the FCBGA1264 socket (PCIe 4.0), while the Core i5-12400F uses LGA1700 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR5-4800 memory speed. The Core i5-12400F supports up to 128 GB of RAM compared to 32 GB — 300% more capacity for professional workloads. Memory channels: 1 (Atom x7809C) vs 2 (Core i5-12400F). PCIe lanes: 9 (Atom x7809C) vs 20 (Core i5-12400F) — the Core i5-12400F offers 11 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FCBGA1264 (Atom x7809C) and H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F).

Feature	Atom x7809C	Core i5-12400F
Socket	FCBGA1264	LGA1700
PCIe Generation	PCIe 4.0+33%	PCIe 3.0
Max RAM Speed	DDR5-4800	DDR5-4800, DDR4-3200
Max RAM Capacity	32 GB	128 GB+300%
RAM Channels	1	2+100%
ECC Support	Yes	No
PCIe Lanes	9	20+122%

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Advanced Features

Virtualization support: VT-x, VT-d (Atom x7809C) vs VT-x, VT-d, EPT (Core i5-12400F). Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.