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-2123 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-2123: 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

✅Better for gaming: +51.4% higher average FPS across 50 shared CPU benchmark tests.
✅+118.2% larger total L3 cache (18 MB vs 8.3 MB).
✅Costs $120 less on MSRP ($174 MSRP vs $294 MSRP).
✅Delivers 287.4% more PassMark for each dollar spent, at 112.3 vs 29.0 PassMark/$ ($174 MSRP vs $294 MSRP).
✅Draws 65W instead of 120W, a 55W reduction.

Trade-offs

❌Lower Geekbench multi-core (657 vs 4,215).
❌Less compelling for workstation-style loads than Xeon W-2123, which brings 4 cores / 8 threads and 48 PCIe lanes.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon W-2123

2017

Why buy it

✅+541.6% higher Geekbench multi-core.
✅Better for workstations and heavier parallel workloads: 4 cores / 8 threads, plus 48 PCIe lanes vs 20.
✅140% more PCIe lanes (48 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-12400F across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (8.3 MB vs 18 MB).
❌Lower PassMark per dollar, at 29.0 vs 112.3 PassMark/$ ($294 MSRP vs $174 MSRP).
❌84.6% higher power demand at 120W vs 65W.
❌Older platform position on LGA2066 with DDR4, while Core i5-12400F moves to LGA1700 and DDR5.

Quick Answers

So, is Core i5-12400F better than Xeon W-2123?

Not really, because they are built for different jobs. Xeon W-2123 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, Xeon W-2123 is the stronger fit. You are getting 541.6% better Geekbench multi-core, backed by 4 cores and 8 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 $120 cheaper on MSRP at $174 MSRP versus $294 MSRP, and it still gives you a 51.4% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon W-2123 is still stronger for heavier multi-core work with 541.6% better Geekbench multi-core. It is also 287.4% better value on MSRP (112.3 vs 29.0 PassMark/$), 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 2017), a healthier platform with LGA1700 and DDR5 instead of LGA2066, and 118.2% larger total L3 cache (18 MB vs 8.3 MB). That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-12400F vs Xeon W-2123 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-2123

The Xeon W-2123 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 4 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 3.9 GHz. L3 cache: 8.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 120 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666. Passmark benchmark score: 8,519 points. Launch price was $294.

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Processing Power

The Core i5-12400F packs 6 cores / 12 threads, while the Xeon W-2123 offers 4 cores / 8 threads — the Core i5-12400F has 2 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 3.9 GHz on the Xeon W-2123 — a 12% clock advantage for the Core i5-12400F (base: 2.5 GHz vs 3.6 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon W-2123 uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i5-12400F scores 19,532 against the Xeon W-2123's 8,519 — a 78.5% lead for the Core i5-12400F. Geekbench 6 single-core — the metric most relevant to gaming — records 1,700 vs 1,172, a 36.8% lead for the Core i5-12400F that directly translates to higher frame rates. Multi-core Geekbench: 657 vs 4,215 (146.1% advantage for the Xeon W-2123). L3 cache: 18 MB (total) on the Core i5-12400F vs 8.25 MB (total) on the Xeon W-2123.

Feature	Core i5-12400F	Xeon W-2123
Cores / Threads	6 / 12+50%	4 / 8
Boost Clock	4.4 GHz+13%	3.9 GHz
Base Clock	2.5 GHz	3.6 GHz+44%
L3 Cache	18 MB (total)+118%	8.25 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+129%	8,519
Cinebench R23 Multi	12,380	—
Geekbench 6 Single	1,700+45%	1,172
Geekbench 6 Multi	657	4,215+542%

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Memory & Platform

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Xeon W-2123 uses LGA2066 (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 W-2123 — the Core i5-12400F supports 80% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon W-2123 supports up to 512 GB of RAM compared to 128 GB — 300% more capacity for professional workloads. Memory channels: 2 (Core i5-12400F) vs 4 (Xeon W-2123). PCIe lanes: 20 (Core i5-12400F) vs 48 (Xeon W-2123) — the Xeon W-2123 offers 28 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and C422 (Xeon W-2123).

Feature	Core i5-12400F	Xeon W-2123
Socket	LGA1700	LGA2066
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR5-4800, DDR4-3200+80%	DDR4-2666
Max RAM Capacity	128 GB	512 GB+300%
RAM Channels	2	4+100%
ECC Support	No	Yes
PCIe Lanes	20	48+140%

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Advanced Features

Virtualization support: VT-x, VT-d, EPT (Core i5-12400F) vs Yes (Xeon W-2123). 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-2123
Integrated GPU	No	No
AVX-512	—	Yes
Virtualization	VT-x, VT-d, EPT	Yes
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-2123 came in at $294. On launch pricing ($174 vs $294), Core i5-12400F was $120 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400F delivers 112.3 pts/$ vs 29.0 pts/$ for the Xeon W-2123 — making the Core i5-12400F the 117.9% better value option.

Feature	Core i5-12400F	Xeon W-2123
MSRP	$174-41%	$294
Performance per Dollar	112.3+287%	29.0
Release Date	2022	2017

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