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 E3-1225 v3 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 E3-1225 v3: 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: +123.2% higher average FPS across 50 shared CPU benchmark tests.
✅+125% larger total L3 cache (18 MB vs 8 MB).
✅Costs $50 less on MSRP ($174 MSRP vs $224 MSRP).
✅Delivers 372.3% more PassMark for each dollar spent, at 112.3 vs 23.8 PassMark/$ ($174 MSRP vs $224 MSRP).
✅Draws 65W instead of 84W, a 19W reduction.

Trade-offs

❌No integrated graphics, while Xeon E3-1225 v3 can still boot and troubleshoot without a discrete GPU.

Xeon E3-1225 v3

2013

Why buy it

✅Integrated graphics onboard with HD Graphics P4600, while Core i5-12400F needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i5-12400F across 50 shared CPU benchmark tests.
❌Lower Cinebench R23 multi-core (2,000 vs 12,380).
❌Smaller total L3 cache (8 MB vs 18 MB).
❌Lower PassMark per dollar, at 23.8 vs 112.3 PassMark/$ ($224 MSRP vs $174 MSRP).
❌29.2% higher power demand at 84W vs 65W.

Quick Answers

So, is Core i5-12400F better than Xeon E3-1225 v3?

Not really, because they are built for different jobs. Xeon E3-1225 v3 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, Core i5-12400F is the better pick. According to our tests, it delivers 123.2% 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, Core i5-12400F is the stronger fit. You are getting 519% better Cinebench R23 multi-core, backed by 6 cores and 12 threads. It also has the larger cache pool with 125% larger total L3 cache (18 MB vs 8 MB).

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 $50 cheaper on MSRP at $174 MSRP versus $224 MSRP, and it still gives you a 123.2% average FPS lead across 50 shared CPU game tests in our data. It is also 372.3% better value on MSRP (112.3 vs 23.8 PassMark/$), 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 2013), a healthier platform with LGA1700 and DDR5 instead of LGA1150, 125% larger total L3 cache (18 MB vs 8 MB), and more multi-core headroom with 6 cores / 12 threads instead of 4/4. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-12400F vs Xeon E3-1225 v3 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 E3-1225 v3

The Xeon E3-1225 v3 is manufactured by Intel. It was released in 2 June 2013 (12 years ago). It is based on the Haswell-WS (2013−2014) architecture. It features 4 cores and 4 threads. Base frequency is 3.2 GHz, with boost up to 3.6 GHz. L3 cache: 8192 kB (total). L2 cache: 256 kB (per core). Built on 22 nm process technology. Socket: LGA1150. Thermal design power (TDP): 84 Watt. Memory support: DDR3, DDR4. Passmark benchmark score: 5,324 points. Launch price was $384.

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Processing Power

The Core i5-12400F packs 6 cores / 12 threads, while the Xeon E3-1225 v3 offers 4 cores / 4 threads — the Core i5-12400F has 2 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 3.6 GHz on the Xeon E3-1225 v3 — a 20% clock advantage for the Core i5-12400F (base: 2.5 GHz vs 3.2 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon E3-1225 v3 uses Haswell-WS (2013−2014) (22 nm). In PassMark, the Core i5-12400F scores 19,532 against the Xeon E3-1225 v3's 5,324 — a 114.3% lead for the Core i5-12400F. Cinebench R23 multi-core: 12,380 vs 2,000 (144.4% advantage for the Core i5-12400F). Geekbench 6 single-core — the metric most relevant to gaming — records 1,700 vs 1,108, a 42.2% lead for the Core i5-12400F that directly translates to higher frame rates. Multi-core Geekbench: 657 vs 3,324 (134% advantage for the Xeon E3-1225 v3). L3 cache: 18 MB (total) on the Core i5-12400F vs 8192 kB (total) on the Xeon E3-1225 v3.

Feature	Core i5-12400F	Xeon E3-1225 v3
Cores / Threads	6 / 12+50%	4 / 4
Boost Clock	4.4 GHz+22%	3.6 GHz
Base Clock	2.5 GHz	3.2 GHz+28%
L3 Cache	18 MB (total)+125%	8192 kB (total)
L2 Cache	1.25 MB (per core)+400%	256 kB (per core)
Process	Intel 7 nm-68%	22 nm
Architecture	Alder Lake-S (2022)	Haswell-WS (2013−2014)
PassMark	19,532+267%	5,324
Cinebench R23 Multi	12,380+519%	2,000
Geekbench 6 Single	1,700+53%	1,108
Geekbench 6 Multi	657	3,324+406%

🧠

Memory & Platform

The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Xeon E3-1225 v3 uses LGA1150 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-12400F versus DDR3-1600 on the Xeon E3-1225 v3 — the Core i5-12400F supports 200% 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 32 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i5-12400F) vs 16 (Xeon E3-1225 v3) — 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 C226,B85,Q87,H81,Z87 (Xeon E3-1225 v3).

Feature	Core i5-12400F	Xeon E3-1225 v3
Socket	LGA1700	LGA1150
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR5-4800, DDR4-3200+200%	DDR3-1600
Max RAM Capacity	128 GB+300%	32 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 (Xeon E3-1225 v3). The Xeon E3-1225 v3 includes integrated graphics (HD Graphics P4600), while the Core i5-12400F requires a dedicated GPU. Primary use case: Core i5-12400F targets Gaming Performance/Value, Xeon E3-1225 v3 targets Workstation. Direct competitor: Core i5-12400F rivals Ryzen 5 5600; Xeon E3-1225 v3 rivals Core i5-4570.

Feature	Core i5-12400F	Xeon E3-1225 v3
Integrated GPU	No	Yes
IGPU Model	—	HD Graphics P4600
Unlocked	—	No
AVX-512	—	No
Virtualization	VT-x, VT-d, EPT	VT-x, VT-d
Target Use	Gaming Performance/Value	Workstation

💰

Value Analysis

At launch, the Core i5-12400F was priced at $174, while the Xeon E3-1225 v3 came in at $224. On launch pricing ($174 vs $224), Core i5-12400F was $50 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-12400F delivers 112.3 pts/$ vs 23.8 pts/$ for the Xeon E3-1225 v3 — making the Core i5-12400F the 130.1% better value option.

Feature	Core i5-12400F	Xeon E3-1225 v3
MSRP	$174-22%	$224
Performance per Dollar	112.3+372%	23.8
Release Date	2022	2013

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