Core i5-12400F vs Xeon E-2456

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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Core i5-12400F

2022

Why buy it

✅Draws 65W instead of 80W, a 15W reduction.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Xeon E-2456.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E-2456 across 50 shared CPU benchmark tests.
❌Lower PassMark (19,532 vs 20,705).
❌Launch MSRP is still $174 MSRP, while Xeon E-2456 mostly shows up through inconsistent older-market listings.

Xeon E-2456

2023

Why buy it

✅Better for gaming: +5.3% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌23.1% higher power demand at 80W vs 65W.
❌No boxed cooler included, unlike Core i5-12400F.

Core i5-12400F

2022

Xeon E-2456

2023

Why buy it

✅Draws 65W instead of 80W, a 15W reduction.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Xeon E-2456.

Why buy it

✅Better for gaming: +5.3% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon E-2456 across 50 shared CPU benchmark tests.
❌Lower PassMark (19,532 vs 20,705).
❌Launch MSRP is still $174 MSRP, while Xeon E-2456 mostly shows up through inconsistent older-market listings.

Trade-offs

❌23.1% higher power demand at 80W vs 65W.
❌No boxed cooler included, unlike Core i5-12400F.

Quick Answers

So, is Xeon E-2456 better than Core i5-12400F?

Not in a simple one-size-fits-all way. Xeon E-2456 makes more sense for workstation-style multi-core throughput, while Core i5-12400F is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

If gaming is the priority, Xeon E-2456 is the better pick here. According to our tests, it delivers 5.3% 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 E-2456 is the better fit. You are getting 6% better PassMark, backed by 6 cores and 12 threads.

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

Xeon E-2456 is still the faster CPU overall, but Core i5-12400F makes more sense if price matters more than absolute performance. Xeon E-2456 is at an unclear MSRP at unclear MSRP versus $174 MSRP, and it gives you a 5.3% average FPS lead across 50 shared CPU game tests in our data. Core i5-12400F is also 100.0% better value on MSRP (112.3 vs 0.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Xeon E-2456 is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2022) and more multi-core headroom with 6 cores / 12 threads instead of 6/12. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Core i5-12400F Benchmark Check

Xeon E-2456 Benchmark Check

Path of Exile 2

Preset	Core i5-12400F	Xeon E-2456
1080p
low	183 FPS	267 FPS
medium	168 FPS	253 FPS
high	139 FPS	214 FPS
ultra	119 FPS	183 FPS
1440p
low	153 FPS	235 FPS
medium	132 FPS	199 FPS
high	106 FPS	162 FPS
ultra	89 FPS	142 FPS
4K
low	87 FPS	164 FPS
medium	81 FPS	139 FPS
high	64 FPS	108 FPS
ultra	49 FPS	95 FPS

Open Core i5-12400F Open Xeon E-2456

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-12400F	Xeon E-2456
1080p
low	471 FPS	518 FPS
medium	397 FPS	483 FPS
high	341 FPS	408 FPS
ultra	301 FPS	364 FPS
1440p
low	407 FPS	493 FPS
medium	351 FPS	428 FPS
high	309 FPS	364 FPS
ultra	265 FPS	313 FPS
4K
low	282 FPS	312 FPS
medium	248 FPS	279 FPS
high	229 FPS	259 FPS
ultra	196 FPS	222 FPS

Open Core i5-12400F Open Xeon E-2456

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-12400F	Xeon E-2456
1080p
low	488 FPS	518 FPS
medium	488 FPS	518 FPS
high	488 FPS	518 FPS
ultra	488 FPS	518 FPS
1440p
low	488 FPS	518 FPS
medium	488 FPS	518 FPS
high	485 FPS	518 FPS
ultra	434 FPS	469 FPS
4K
low	442 FPS	502 FPS
medium	389 FPS	448 FPS
high	337 FPS	391 FPS
ultra	274 FPS	327 FPS

Open Core i5-12400F Open Xeon E-2456

League of Legends

League of Legends

Valorant

Preset	Core i5-12400F	Xeon E-2456
1080p
low	488 FPS	518 FPS
medium	488 FPS	518 FPS
high	488 FPS	518 FPS
ultra	488 FPS	518 FPS
1440p
low	488 FPS	518 FPS
medium	488 FPS	518 FPS
high	488 FPS	518 FPS
ultra	473 FPS	518 FPS
4K
low	488 FPS	518 FPS
medium	450 FPS	492 FPS
high	391 FPS	432 FPS
ultra	330 FPS	364 FPS

Open Core i5-12400F Open Xeon E-2456

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-12400F and Xeon E-2456

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-2456

The Xeon E-2456 is manufactured by Intel. It was released in 14 December 2023 (1 year ago). It is based on the Raptor Lake-S (2023−2024) architecture. It features 6 cores and 12 threads. Base frequency is 3.3 GHz, with boost up to 5.1 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): 80 Watt. Memory support: DDR5-4800. Passmark benchmark score: 20,705 points. Launch price was $375.

⚡

Processing Power

Both the Core i5-12400F and Xeon E-2456 share an identical 6-core/12-thread configuration. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 5.1 GHz on the Xeon E-2456 — a 14.7% clock advantage for the Xeon E-2456 (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 E-2456 uses Raptor Lake-S (2023−2024) (Intel 7 nm). In PassMark, the Core i5-12400F scores 19,532 against the Xeon E-2456's 20,705 — a 5.8% lead for the Xeon E-2456. Both processors carry 18 MB (total) of L3 cache.

Feature	Core i5-12400F	Xeon E-2456
Cores / Threads	6 / 12	6 / 12
Boost Clock	4.4 GHz	5.1 GHz+16%
Base Clock	2.5 GHz	3.3 GHz+32%
L3 Cache	18 MB (total)	18 MB (total)
L2 Cache	1.25 MB (per core)	1.25 MB (per core)
Process	Intel 7 nm	Intel 7 nm
Architecture	Alder Lake-S (2022)	Raptor Lake-S (2023−2024)
PassMark	19,532	20,705+6%
Cinebench R23 Multi	12,380	—
Geekbench 6 Single	1,700	—
Geekbench 6 Multi	657	—

🧠

Memory & Platform

Both processors use the LGA1700 socket with PCIe 3.0.

Feature	Core i5-12400F	Xeon E-2456
Socket	LGA1700	LGA1700
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR5-4800, DDR4-3200	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

🔧

Advanced Features

Virtualization: VT-x, VT-d, EPT (Core i5-12400F) / not specified (Xeon E-2456). Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.