Core i5-12400F vs Xeon W-2155

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 W-2155 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 W-2155: 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

✅+30.9% larger total L3 cache (18 MB vs 14 MB).
✅Costs $1,266 less on MSRP ($174 MSRP vs $1,440 MSRP).
✅Delivers 675.0% more PassMark for each dollar spent, at 112.3 vs 14.5 PassMark/$ ($174 MSRP vs $1,440 MSRP).
✅Draws 65W instead of 140W, a 75W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

❌Lower PassMark (19,532 vs 20,858).
❌Less compelling for workstation-style loads than Xeon W-2155, which brings 10 cores / 20 threads.

Xeon W-2155

2017

Why buy it

✅Better for workstations and heavier parallel workloads: 10 cores / 20 threads.

Trade-offs

❌Smaller total L3 cache (14 MB vs 18 MB).
❌Lower PassMark per dollar, at 14.5 vs 112.3 PassMark/$ ($1,440 MSRP vs $174 MSRP).
❌115.4% higher power demand at 140W vs 65W.
❌Older platform position on LGA2066 with DDR4, while Core i5-12400F moves to LGA1700 and DDR5.
❌No boxed cooler included, unlike Core i5-12400F.

Quick Answers

So, is Xeon W-2155 better than Core i5-12400F?

Not really, because they are built for different jobs. Xeon W-2155 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 gaming?

If gaming is the priority, Xeon W-2155 is the better pick. According to our tests, it delivers 2.6% 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, Xeon W-2155 is the stronger fit. You are getting 6.8% better PassMark, backed by 10 cores and 20 threads.

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

Xeon W-2155 is still the faster CPU overall, but Core i5-12400F is easier to justify if budget matters more than peak performance. Xeon W-2155 comes in 727.6% more expensive on MSRP at $1,440 MSRP versus $174 MSRP, and it still gives you a 2.6% average FPS lead across 50 shared CPU game tests in our data. Core i5-12400F is also 675.0% better value on MSRP (112.3 vs 14.5 PassMark/$), 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 i5-12400F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2017), a healthier platform with LGA1700 and DDR5 instead of LGA2066, and 30.9% larger total L3 cache (18 MB vs 14 MB). That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-12400F vs Xeon W-2155 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 W-2155

The Xeon W-2155 is manufactured by Intel. It was released in 29 August 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 10 cores and 20 threads. Base frequency is 3.3 GHz, with boost up to 4.5 GHz. L3 cache: 13.75 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 140 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666. Passmark benchmark score: 20,858 points. Launch price was $1,440.

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Processing Power

The Core i5-12400F packs 6 cores / 12 threads, while the Xeon W-2155 offers 10 cores / 20 threads — the Xeon W-2155 has 4 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 4.5 GHz on the Xeon W-2155 — a 2.2% clock advantage for the Xeon W-2155 (base: 2.5 GHz vs 3.3 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon W-2155 uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i5-12400F scores 19,532 against the Xeon W-2155's 20,858 — a 6.6% lead for the Xeon W-2155. L3 cache: 18 MB (total) on the Core i5-12400F vs 13.75 MB (total) on the Xeon W-2155.

Feature	Core i5-12400F	Xeon W-2155
Cores / Threads	6 / 12	10 / 20+67%
Boost Clock	4.4 GHz	4.5 GHz+2%
Base Clock	2.5 GHz	3.3 GHz+32%
L3 Cache	18 MB (total)+31%	13.75 MB (total)
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	Intel 7 nm-50%	14 nm
Architecture	Alder Lake-S (2022)	Skylake (server) (2017−2018)
PassMark	19,532	20,858+7%
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 W-2155 uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Core i5-12400F	Xeon W-2155
Socket	LGA1700	LGA2066
PCIe Generation	PCIe 3.0	PCIe 3.0
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 (Xeon W-2155). Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.

Feature	Core i5-12400F	Xeon W-2155
Integrated GPU	No	—
Virtualization	VT-x, VT-d, EPT	—
Target Use	Gaming Performance/Value	—

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Value Analysis

At launch, the Core i5-12400F was priced at $174, while the Xeon W-2155 came in at $1440. On launch pricing ($174 vs $1440), Core i5-12400F was $1266 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400F delivers 112.3 pts/$ vs 14.5 pts/$ for the Xeon W-2155 — making the Core i5-12400F the 154.3% better value option.

Feature	Core i5-12400F	Xeon W-2155
MSRP	$174-88%	$1440
Performance per Dollar	112.3+674%	14.5
Release Date	2022	2017

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