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 E5-1681 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 i5-10400F vs Xeon E5-1681 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 i5-10400F

2020

Why buy it

✅+38.5% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅Costs $1,429 less on MSRP ($160 MSRP vs $1,589 MSRP).
✅Delivers 773.1% more PassMark for each dollar spent, at 81.4 vs 9.3 PassMark/$ ($160 MSRP vs $1,589 MSRP).
✅Draws 65W instead of 135W, a 70W reduction.
✅Includes a boxed cooler (Yes), unlike Xeon E5-1681 V3.

Trade-offs

❌Lower Geekbench multi-core (5,783 vs 9,000).
❌Smaller total L3 cache (12 MB vs 25 MB).
❌Less compelling for workstation-style loads than Xeon E5-1681 V3, which brings 10 cores / 20 threads and 40 PCIe lanes.

Xeon E5-1681 V3

2014

Why buy it

✅+55.6% higher Geekbench multi-core.
✅+108.3% larger total L3 cache (25 MB vs 12 MB).
✅Better for workstations and heavier parallel workloads: 10 cores / 20 threads, plus 40 PCIe lanes vs 16.
✅150% more PCIe lanes (40 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Lower Geekbench single-core performance for gaming (1,050 vs 1,454).
❌Lower PassMark per dollar, at 9.3 vs 81.4 PassMark/$ ($1,589 MSRP vs $160 MSRP).
❌107.7% higher power demand at 135W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Core i5-10400F better than Xeon E5-1681 V3?

Not really, because they are built for different jobs. Xeon E5-1681 V3 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 streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Xeon E5-1681 V3 is the stronger fit. You are getting 55.6% better Geekbench multi-core, backed by 10 cores and 20 threads. It also has the larger cache pool with 108.3% larger total L3 cache (25 MB vs 12 MB).

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

Core i5-10400F is the better buy right now. Core i5-10400F comes in $1,429 cheaper on MSRP at $160 MSRP versus $1,589 MSRP, and it still gives you a 0.6% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon E5-1681 V3 is still stronger for heavier multi-core work with 55.6% better Geekbench multi-core. It is also 773.1% better value on MSRP (81.4 vs 9.3 PassMark/$), 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 i5-10400F makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2014). That makes it the safer long-term bet.

Core i5-10400F vs Xeon E5-1681 V3 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 E5-1681 V3

The Xeon E5-1681 V3 is manufactured by Intel. It was released in 2015-01-01. It is based on the Haswell-EP (2014−2015) architecture. It features 10 cores and 20 threads. Base frequency is 2.9 GHz, with boost up to 3.5 GHz. L3 cache: 25 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011-3. Thermal design power (TDP): 135 Watt. Memory support: DDR4-2133. Passmark benchmark score: 14,820 points. Launch price was $800.

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Processing Power

The Core i5-10400F packs 6 cores / 12 threads, while the Xeon E5-1681 V3 offers 10 cores / 20 threads — the Xeon E5-1681 V3 has 4 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 3.5 GHz on the Xeon E5-1681 V3 — a 20.5% clock advantage for the Core i5-10400F (base: 2.9 GHz vs 2.9 GHz). The Core i5-10400F uses the Comet Lake (2020−2025) architecture (14 nm), while the Xeon E5-1681 V3 uses Haswell-EP (2014−2015) (22 nm). In PassMark, the Core i5-10400F scores 13,029 against the Xeon E5-1681 V3's 14,820 — a 12.9% lead for the Xeon E5-1681 V3. Geekbench 6 single-core — the metric most relevant to gaming — records 1,454 vs 1,050, a 32.3% lead for the Core i5-10400F that directly translates to higher frame rates. Multi-core Geekbench: 5,783 vs 9,000 (43.5% advantage for the Xeon E5-1681 V3). L3 cache: 12 MB (total) on the Core i5-10400F vs 25 MB (total) on the Xeon E5-1681 V3.

Feature	Core i5-10400F	Xeon E5-1681 V3
Cores / Threads	6 / 12	10 / 20+67%
Boost Clock	4.3 GHz+23%	3.5 GHz
Base Clock	2.9 GHz	2.9 GHz
L3 Cache	12 MB (total)	25 MB (total)+108%
L2 Cache	256K (per core)	256K (per core)
Process	14 nm-36%	22 nm
Architecture	Comet Lake (2020−2025)	Haswell-EP (2014−2015)
PassMark	13,029	14,820+14%
Cinebench R23 Multi	8,191	—
Geekbench 6 Single	1,454+38%	1,050
Geekbench 6 Multi	5,783	9,000+56%

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Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Xeon E5-1681 V3 uses LGA2011-3 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i5-10400F versus DDR4-2133 on the Xeon E5-1681 V3 — the Core i5-10400F supports 25% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon E5-1681 V3 supports up to 768 GB of RAM compared to 128 GB — 500% more capacity for professional workloads. Memory channels: 2 (Core i5-10400F) vs 4 (Xeon E5-1681 V3). PCIe lanes: 16 (Core i5-10400F) vs 40 (Xeon E5-1681 V3) — the Xeon E5-1681 V3 offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F) and C612,X99 (Xeon E5-1681 V3).

Feature	Core i5-10400F	Xeon E5-1681 V3
Socket	LGA1200	LGA2011-3
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2666+25%	DDR4-2133
Max RAM Capacity	128 GB	768 GB+500%
RAM Channels	2	4+100%
ECC Support	No	Yes
PCIe Lanes	16	40+150%

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Advanced Features

Virtualization support: VT-x, VT-d (Core i5-10400F) vs Yes (Xeon E5-1681 V3). Primary use case: Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600.

Feature	Core i5-10400F	Xeon E5-1681 V3
Integrated GPU	No	No
Unlocked	No	—
AVX-512	No	No
Virtualization	VT-x, VT-d	Yes
Target Use	Gaming	—

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Value Analysis

At launch, the Core i5-10400F was priced at $160, while the Xeon E5-1681 V3 came in at $1589. On launch pricing ($160 vs $1589), Core i5-10400F was $1429 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-10400F delivers 81.4 pts/$ vs 9.3 pts/$ for the Xeon E5-1681 V3 — making the Core i5-10400F the 158.9% better value option.

Feature	Core i5-10400F	Xeon E5-1681 V3
MSRP	$160-90%	$1589
Performance per Dollar	81.4+775%	9.3
Release Date	2020	2014

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