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

✅Costs $2,001 less on MSRP ($160 MSRP vs $2,161 MSRP).
✅Delivers 206.4% more PassMark for each dollar spent, at 81.4 vs 26.6 PassMark/$ ($160 MSRP vs $2,161 MSRP).
✅Draws 65W instead of 195W, a 130W reduction.
✅Includes a boxed cooler (Yes), unlike Xeon Gold 6423N.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Gold 6423N across 6 shared CPU benchmark tests.
❌Lower PassMark (13,029 vs 57,434).
❌Smaller total L3 cache (12 MB vs 53 MB).
❌Less compelling for workstation-style loads than Xeon Gold 6423N, which brings 28 cores / 56 threads and 80 PCIe lanes.
❌Older platform position on LGA1200 with DDR4, while Xeon Gold 6423N moves to LGA4677 and DDR5.

Xeon Gold 6423N

2023

Why buy it

✅Better for gaming: +51.9% higher average FPS across 6 shared CPU benchmark tests.
✅+337.5% larger total L3 cache (53 MB vs 12 MB).
✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 80 PCIe lanes vs 16.
✅Newer platform on LGA4677 with DDR5 support instead of LGA1200 and DDR4.
✅400% more PCIe lanes (80 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 26.6 vs 81.4 PassMark/$ ($2,161 MSRP vs $160 MSRP).
❌200% higher power demand at 195W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Core i5-10400F

2020

Xeon Gold 6423N

2023

Why buy it

✅Costs $2,001 less on MSRP ($160 MSRP vs $2,161 MSRP).
✅Delivers 206.4% more PassMark for each dollar spent, at 81.4 vs 26.6 PassMark/$ ($160 MSRP vs $2,161 MSRP).
✅Draws 65W instead of 195W, a 130W reduction.
✅Includes a boxed cooler (Yes), unlike Xeon Gold 6423N.

Why buy it

✅Better for gaming: +51.9% higher average FPS across 6 shared CPU benchmark tests.
✅+337.5% larger total L3 cache (53 MB vs 12 MB).
✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 80 PCIe lanes vs 16.
✅Newer platform on LGA4677 with DDR5 support instead of LGA1200 and DDR4.
✅400% more PCIe lanes (80 vs 16) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Gold 6423N across 6 shared CPU benchmark tests.
❌Lower PassMark (13,029 vs 57,434).
❌Smaller total L3 cache (12 MB vs 53 MB).
❌Less compelling for workstation-style loads than Xeon Gold 6423N, which brings 28 cores / 56 threads and 80 PCIe lanes.
❌Older platform position on LGA1200 with DDR4, while Xeon Gold 6423N moves to LGA4677 and DDR5.

Trade-offs

❌Lower PassMark per dollar, at 26.6 vs 81.4 PassMark/$ ($2,161 MSRP vs $160 MSRP).
❌200% higher power demand at 195W vs 65W.
❌No boxed cooler included, unlike Core i5-10400F.

Quick Answers

So, is Xeon Gold 6423N better than Core i5-10400F?

Not in a simple one-size-fits-all way. Xeon Gold 6423N 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 gaming?

If gaming is the priority, Xeon Gold 6423N is the better pick here. According to our tests, it delivers 51.9% more average FPS across 6 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Xeon Gold 6423N is the better fit. You are getting 340.8% better PassMark, backed by 28 cores and 56 threads. It also carries the larger cache pool with 337.5% larger total L3 cache (53 MB vs 12 MB).

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

Xeon Gold 6423N is still the faster CPU overall, but Core i5-10400F makes more sense if price matters more than absolute performance. Xeon Gold 6423N is 1250.6% more expensive on MSRP at $2,161 MSRP versus $160 MSRP, and it gives you a 51.9% average FPS lead across 6 shared CPU game tests in our data. Core i5-10400F is also 206.4% better value on MSRP (81.4 vs 26.6 PassMark/$), 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 Gold 6423N is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020), a healthier platform with LGA4677 and DDR5 instead of LGA1200, 337.5% larger total L3 cache (53 MB vs 12 MB), more multi-core headroom with 28 cores / 56 threads instead of 6/12, and AVX-512 support for heavier modern compute workloads. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

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 Gold 6423N Benchmark Check

Path of Exile 2

Preset	Core i5-10400F	Xeon Gold 6423N
1080p
low	192 FPS	194 FPS
medium	152 FPS	157 FPS
high	123 FPS	127 FPS
ultra	100 FPS	100 FPS
1440p
low	153 FPS	157 FPS
medium	119 FPS	123 FPS
high	97 FPS	96 FPS
ultra	79 FPS	76 FPS
4K
low	82 FPS	72 FPS
medium	70 FPS	60 FPS
high	55 FPS	47 FPS
ultra	43 FPS	38 FPS

Open Core i5-10400F Open Xeon Gold 6423N

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Core i5-10400F	Xeon Gold 6423N
1080p
low	326 FPS	237 FPS
medium	318 FPS	211 FPS
high	290 FPS	175 FPS
ultra	253 FPS	142 FPS
1440p
low	326 FPS	199 FPS
medium	292 FPS	181 FPS
high	267 FPS	155 FPS
ultra	234 FPS	120 FPS
4K
low	309 FPS	124 FPS
medium	258 FPS	115 FPS
high	235 FPS	101 FPS
ultra	199 FPS	82 FPS

Open Core i5-10400F Open Xeon Gold 6423N

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Core i5-10400F	Xeon Gold 6423N
1080p
low	326 FPS	945 FPS
medium	326 FPS	827 FPS
high	326 FPS	782 FPS
ultra	326 FPS	693 FPS
1440p
low	326 FPS	748 FPS
medium	326 FPS	645 FPS
high	326 FPS	610 FPS
ultra	326 FPS	541 FPS
4K
low	326 FPS	480 FPS
medium	326 FPS	379 FPS
high	289 FPS	337 FPS
ultra	229 FPS	275 FPS

Open Core i5-10400F Open Xeon Gold 6423N

League of Legends

League of Legends

Valorant

Preset	Core i5-10400F	Xeon Gold 6423N
1080p
low	326 FPS	924 FPS
medium	326 FPS	835 FPS
high	326 FPS	719 FPS
ultra	326 FPS	621 FPS
1440p
low	326 FPS	713 FPS
medium	326 FPS	628 FPS
high	326 FPS	538 FPS
ultra	326 FPS	460 FPS
4K
low	326 FPS	515 FPS
medium	326 FPS	461 FPS
high	326 FPS	404 FPS
ultra	326 FPS	349 FPS

Open Core i5-10400F Open Xeon Gold 6423N

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i5-10400F and Xeon Gold 6423N

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 Gold 6423N

The Xeon Gold 6423N is manufactured by Intel. It was released in 2023-07-01. It features 28 cores and 56 threads. Base frequency is 2 GHz, with boost up to 3.6 GHz. L3 cache: 52.5 MB. Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 195 Watt. Memory support: DDR5-4400. Passmark benchmark score: 57,434 points. Launch price was $2,161.

⚡

Processing Power

The Core i5-10400F packs 6 cores / 12 threads, while the Xeon Gold 6423N offers 28 cores / 56 threads — the Xeon Gold 6423N has 22 more cores. Boost clocks reach 4.3 GHz on the Core i5-10400F versus 3.6 GHz on the Xeon Gold 6423N — a 17.7% clock advantage for the Core i5-10400F (base: 2.9 GHz vs 2 GHz). The Core i5-10400F is built on the Comet Lake (2020−2025) architecture. In PassMark, the Core i5-10400F scores 13,029 against the Xeon Gold 6423N's 57,434 — a 126% lead for the Xeon Gold 6423N. L3 cache: 12 MB (total) on the Core i5-10400F vs 52.5 MB on the Xeon Gold 6423N.

Feature	Core i5-10400F	Xeon Gold 6423N
Cores / Threads	6 / 12	28 / 56+367%
Boost Clock	4.3 GHz+19%	3.6 GHz
Base Clock	2.9 GHz+45%	2 GHz
L3 Cache	12 MB (total)	52.5 MB+338%
L2 Cache	256K (per core)	—
Process	14 nm	Intel 7 nm-50%
Architecture	Comet Lake (2020−2025)	—
PassMark	13,029	57,434+341%
Cinebench R23 Multi	8,191	—
Geekbench 6 Single	1,454	—
Geekbench 6 Multi	5,783	—

🧠

Memory & Platform

The Core i5-10400F uses the LGA1200 socket (PCIe 3.0), while the Xeon Gold 6423N uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i5-10400F versus 4800 on the Xeon Gold 6423N — the Xeon Gold 6423N supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6423N supports up to 4096 of RAM compared to 128 GB — 187.9% more capacity for professional workloads. Memory channels: 2 (Core i5-10400F) vs 8 (Xeon Gold 6423N). PCIe lanes: 16 (Core i5-10400F) vs 80 (Xeon Gold 6423N) — the Xeon Gold 6423N offers 64 more lanes for additional GPUs or NVMe drives. Chipset compatibility: H410,B460,H470,Z490,H510,B560,H570,Z590 (Core i5-10400F) and C741 (Xeon Gold 6423N).

Feature	Core i5-10400F	Xeon Gold 6423N
Socket	LGA1200	LGA4677
PCIe Generation	PCIe 3.0	PCIe 5.0+67%
Max RAM Speed	DDR4-2666	4800+119900%
Max RAM Capacity	128 GB+3276700%	4096
RAM Channels	2	8+300%
ECC Support	No	Yes
PCIe Lanes	16	80+400%

🔧

Advanced Features

Neither processor supports overclocking. Only the Xeon Gold 6423N supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. Primary use case: Core i5-10400F targets Gaming. Direct competitor: Core i5-10400F rivals Ryzen 5 3600; Xeon Gold 6423N rivals EPYC 9354.

Feature	Core i5-10400F	Xeon Gold 6423N
Integrated GPU	No	No
IGPU Model	—	None
Unlocked	No	No
AVX-512	No	Yes
Virtualization	VT-x, VT-d	VT-x, VT-d
Target Use	Gaming	—

💰

Value Analysis

The Core i5-10400F launched at $160 MSRP, while the Xeon Gold 6423N debuted at $2161. On MSRP ($160 vs $2161), the Core i5-10400F is $2001 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i5-10400F delivers 81.4 pts/$ vs 26.6 pts/$ for the Xeon Gold 6423N — making the Core i5-10400F the 101.6% better value option.