Core i5-10400F 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.

Core i5-10400F vs Xeon E-2456 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 i5-10400F vs Xeon E-2456: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Core i5-10400F

2020

Why buy it

✅Draws 65W instead of 80W, a 15W reduction.
✅100+% more PCIe lanes (16 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 (13,029 vs 20,705).
❌Smaller total L3 cache (12 MB vs 18 MB).
❌Launch MSRP is still $160 MSRP, while Xeon E-2456 mostly shows up through inconsistent older-market listings.
❌Older platform position on LGA1200 with DDR4, while Xeon E-2456 moves to LGA1700 and DDR5.

Xeon E-2456

2023

Why buy it

✅Better for gaming: +24.1% higher average FPS across 50 shared CPU benchmark tests.
✅+50% larger total L3 cache (18 MB vs 12 MB).
✅Newer platform on LGA1700 with DDR5 support instead of LGA1200 and DDR4.

Trade-offs

❌23.1% higher power demand at 80W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Xeon E-2456 better than Core i5-10400F?

Not really, because they are built for different jobs. Xeon E-2456 makes more sense for workstation-style multi-core throughput, while Core i5-10400F 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 E-2456 is the better pick. According to our tests, it delivers 24.1% 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 stronger fit. You are getting 58.9% better PassMark, backed by 6 cores and 12 threads. It also has the larger cache pool with 50% larger total L3 cache (18 MB vs 12 MB).

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

Xeon E-2456 is still the faster CPU overall, but Core i5-10400F is easier to justify if budget matters more than peak performance. Xeon E-2456 comes in at an unclear MSRP at unclear MSRP versus $160 MSRP, and it still gives you a 24.1% average FPS lead across 50 shared CPU game tests in our data. Core i5-10400F is also 100.0% better value on MSRP (81.4 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Xeon E-2456 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020), a healthier platform with LGA1700 and DDR5 instead of LGA1200, 50% larger total L3 cache (18 MB vs 12 MB), and more multi-core headroom with 6 cores / 12 threads instead of 6/12. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i5-10400F vs Xeon E-2456 Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Core i5-10400F

The Core i5-10400F is manufactured by Intel. It was released in 30 April 2020 (5 years ago). It is based on the Comet Lake (2020−2025) architecture. It features 6 cores and 12 threads. Base frequency is 2.9 GHz, with boost up to 4.3 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 13,029 points. Launch price was $155.

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.

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Processing Power

Both the Core i5-10400F and Xeon E-2456 share an identical 6-core/12-thread configuration. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 5.1 GHz on the Xeon E-2456 — a 17% clock advantage for the Xeon E-2456 (base: 2.9 GHz vs 3.3 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Xeon E-2456 uses Raptor Lake-S (2023−2024) (Intel 7 nm). In PassMark, the Core i5-10400F scores 13,029 against the Xeon E-2456's 20,705 — a 45.5% lead for the Xeon E-2456. L3 cache: 12 MB (total) on the Core i5-10400F vs 18 MB (total) on the Xeon E-2456.

Feature	Core i5-10400F	Xeon E-2456
Cores / Threads	6 / 12	6 / 12
Boost Clock	4.3 GHz	5.1 GHz+19%
Base Clock	2.9 GHz	3.3 GHz+14%
L3 Cache	12 MB (total)	18 MB (total)+50%
L2 Cache	256K (per core)+20380%	1.25 MB (per core)
Process	14 nm	Intel 7 nm-50%
Architecture	Comet Lake (2020−2025)	Raptor Lake-S (2023−2024)
PassMark	13,029	20,705+59%
Cinebench R23 Multi	8,191	—
Geekbench 6 Single	1,454	—
Geekbench 6 Multi	5,783	—

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Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Xeon E-2456 uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard.

Feature	Core i5-10400F	Xeon E-2456
Socket	LGA1200	LGA1700
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2666	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i5-10400F) / not specified (Xeon E-2456). Primary use case: Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.