Core i5-12400F vs Xeon E-2278G

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 Xeon E-2278G 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 Xeon E-2278G: 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

✅+16.1% higher PassMark.
✅Draws 65W instead of 80W, a 15W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA1151 and DDR4.
✅25% more PCIe lanes (20 vs 16) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Xeon E-2278G.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E-2278G across 50 shared CPU benchmark tests.
❌Less compelling for workstation-style loads than Xeon E-2278G, which brings 8 cores / 16 threads.
❌Launch MSRP is still $174 MSRP, while Xeon E-2278G mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while Xeon E-2278G can still boot and troubleshoot without a discrete GPU.

Xeon E-2278G

2019

Why buy it

✅Better for gaming: +3.7% higher average FPS across 50 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 8 cores / 16 threads.
✅Integrated graphics onboard with Intel UHD Graphics P630, while Core i5-12400F needs a discrete GPU.

Trade-offs

❌Lower PassMark (16,825 vs 19,532).
❌23.1% higher power demand at 80W vs 65W.
❌Older platform position on LGA1151 with DDR4, 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 Xeon E-2278G?

Not really, because they are built for different jobs. Xeon E-2278G makes more sense for workstation-style multi-core throughput, while Core i5-12400F is the more practical desktop choice for gaming, platform cost, and everyday use.

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 16.1% 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 better buy right now. Core i5-12400F comes in at an unclear MSRP at $174 MSRP versus unclear MSRP, and it still gives you 16.1% better PassMark. The compromise is that Xeon E-2278G is still the better pure gaming CPU with a 3.7% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (112.3 vs 0.0 PassMark/$), 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 i5-12400F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2019), a healthier platform with LGA1700 and DDR5 instead of LGA1151, and more multi-core headroom with 6 cores / 12 threads instead of 8/16. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-12400F vs Xeon E-2278G 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.

Xeon E-2278G

The Xeon E-2278G is manufactured by Intel. It was released in 29 May 2019 (6 years ago). It is based on the Coffee Lake-S WS (2018−2019) architecture. It features 8 cores and 16 threads. Base frequency is 3.4 GHz, with boost up to 5 GHz. L3 cache: 16 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 80 Watt. Memory support: DDR4-2666. Passmark benchmark score: 16,825 points. Launch price was $494.

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Processing Power

The Core i5-12400F packs 6 cores / 12 threads, while the Xeon E-2278G offers 8 cores / 16 threads — the Xeon E-2278G has 2 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 5 GHz on the Xeon E-2278G — a 12.8% clock advantage for the Xeon E-2278G (base: 2.5 GHz vs 3.4 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon E-2278G uses Coffee Lake-S WS (2018−2019) (14 nm). In PassMark, the Core i5-12400F scores 19,532 against the Xeon E-2278G's 16,825 — a 14.9% lead for the Core i5-12400F. L3 cache: 18 MB (total) on the Core i5-12400F vs 16 MB (total) on the Xeon E-2278G.

Feature	Core i5-12400F	Xeon E-2278G
Cores / Threads	6 / 12	8 / 16+33%
Boost Clock	4.4 GHz	5 GHz+14%
Base Clock	2.5 GHz	3.4 GHz+36%
L3 Cache	18 MB (total)+13%	16 MB (total)
L2 Cache	1.25 MB (per core)+400%	256 kB (per core)
Process	Intel 7 nm-50%	14 nm
Architecture	Alder Lake-S (2022)	Coffee Lake-S WS (2018−2019)
PassMark	19,532+16%	16,825
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 Xeon E-2278G uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-12400F versus DDR4-2666 on the Xeon E-2278G — the Core i5-12400F supports 80% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i5-12400F) vs 16 (Xeon E-2278G) — the Core i5-12400F offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and C242,C246 (Xeon E-2278G).

Feature	Core i5-12400F	Xeon E-2278G
Socket	LGA1700	LGA1151
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR5-4800, DDR4-3200+80%	DDR4-2666
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	20+25%	16

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Advanced Features

Virtualization support: VT-x, VT-d, EPT (Core i5-12400F) vs VT-x / VT-d / EPT (Xeon E-2278G). The Xeon E-2278G includes integrated graphics (Intel UHD Graphics P630), while the Core i5-12400F requires a dedicated GPU. Primary use case: Core i5-12400F targets Gaming Performance/Value, Xeon E-2278G targets Server. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.

Feature	Core i5-12400F	Xeon E-2278G
Integrated GPU	No	Yes
IGPU Model	—	Intel UHD Graphics P630
Unlocked	—	No
AVX-512	—	No
Virtualization	VT-x, VT-d, EPT	VT-x / VT-d / EPT
Target Use	Gaming Performance/Value	Server