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 i5-10400F

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.

Core i5-10400F

2020

Xeon E5-1681 V3

2014

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.

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 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.

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 in a simple one-size-fits-all way. Xeon E5-1681 V3 makes more sense for workstation-style multi-core throughput, while Core i5-10400F is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Xeon E5-1681 V3 is the better fit. You are getting 55.6% better Geekbench multi-core, backed by 10 cores and 20 threads. It also carries 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 smarter buy today. Core i5-10400F is $1,429 cheaper on MSRP at $160 MSRP versus $1,589 MSRP, and it gives you a 0.6% average FPS lead across 50 shared CPU game tests in our data. The trade-off is that Xeon E5-1681 V3 is still stronger for heavier multi-core work with 55.6% better Geekbench multi-core. It is also 773.1% better value on MSRP (81.4 vs 9.3 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Core i5-10400F is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2014). That makes it the safer long-term pick.

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 i5-10400F Benchmark Check

Xeon E5-1681 V3 Benchmark Check

Path of Exile 2

Preset	Core i5-10400F	Xeon E5-1681 V3
1080p
low	192 FPS	163 FPS
medium	152 FPS	141 FPS
high	123 FPS	115 FPS
ultra	100 FPS	94 FPS
1440p
low	153 FPS	136 FPS
medium	119 FPS	115 FPS
high	97 FPS	91 FPS
ultra	79 FPS	74 FPS
4K
low	82 FPS	63 FPS
medium	70 FPS	57 FPS
high	55 FPS	44 FPS
ultra	43 FPS	35 FPS

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

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-10400F	Xeon E5-1681 V3
1080p
low	326 FPS	330 FPS
medium	318 FPS	296 FPS
high	290 FPS	258 FPS
ultra	253 FPS	213 FPS
1440p
low	326 FPS	284 FPS
medium	292 FPS	260 FPS
high	267 FPS	227 FPS
ultra	234 FPS	185 FPS
4K
low	309 FPS	184 FPS
medium	258 FPS	168 FPS
high	235 FPS	146 FPS
ultra	199 FPS	116 FPS

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

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-10400F	Xeon E5-1681 V3
1080p
low	326 FPS	370 FPS
medium	326 FPS	370 FPS
high	326 FPS	370 FPS
ultra	326 FPS	370 FPS
1440p
low	326 FPS	370 FPS
medium	326 FPS	370 FPS
high	326 FPS	370 FPS
ultra	326 FPS	342 FPS
4K
low	326 FPS	370 FPS
medium	326 FPS	319 FPS
high	289 FPS	290 FPS
ultra	229 FPS	240 FPS

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

League of Legends

League of Legends

Valorant

Preset	Core i5-10400F	Xeon E5-1681 V3
1080p
low	326 FPS	370 FPS
medium	326 FPS	370 FPS
high	326 FPS	370 FPS
ultra	326 FPS	370 FPS
1440p
low	326 FPS	370 FPS
medium	326 FPS	370 FPS
high	326 FPS	370 FPS
ultra	326 FPS	370 FPS
4K
low	326 FPS	370 FPS
medium	326 FPS	370 FPS
high	326 FPS	370 FPS
ultra	326 FPS	331 FPS

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

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-10400F and Xeon E5-1681 V3

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.

⚡

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%

🧠

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. Both support up to DDR4-2666 memory speed. The Xeon E5-1681 V3 supports up to 768 GB of RAM compared to 128 GB — 142.9% 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	DDR4-2133
Max RAM Capacity	128 GB	768 GB+500%
RAM Channels	2	4+100%
ECC Support	No	Yes
PCIe Lanes	16	40+150%

🔧

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	—

💰

Value Analysis

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