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 i9-13900K vs Xeon Gold 6423N 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 i9-13900K vs Xeon Gold 6423N: Pros, Cons & Final Verdict

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

Core i9-13900K

2022

Why buy it

✅Better for gaming: +34.7% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $1,562 less on MSRP ($599 MSRP vs $2,161 MSRP).
✅Delivers 266.7% more PassMark for each dollar spent, at 97.5 vs 26.6 PassMark/$ ($599 MSRP vs $2,161 MSRP).
✅Draws 125W instead of 195W, a 70W reduction.
✅Integrated graphics onboard with Intel UHD Graphics 770, while Xeon Gold 6423N needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (36 MB vs 53 MB).
❌Less compelling for workstation-style loads than Xeon Gold 6423N, which brings 28 cores / 56 threads and 80 PCIe lanes.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon Gold 6423N

2023

Why buy it

✅+45.8% larger total L3 cache (53 MB vs 36 MB).
✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 80 PCIe lanes vs 20.
✅300% more PCIe lanes (80 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-13900K across 50 shared CPU benchmark tests.
❌Lower PassMark (57,434 vs 58,373).
❌Lower PassMark per dollar, at 26.6 vs 97.5 PassMark/$ ($2,161 MSRP vs $599 MSRP).
❌56% higher power demand at 195W vs 125W.
❌No integrated graphics, while Core i9-13900K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i9-13900K better than Xeon Gold 6423N?

Not really, because they are built for different jobs. Xeon Gold 6423N makes more sense for workstation-style multi-core throughput, while Core i9-13900K is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Core i9-13900K is the better pick. According to our tests, it delivers 34.7% 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, Core i9-13900K is the stronger fit. You are getting 1.6% better PassMark, backed by 24 cores and 32 threads.

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

Core i9-13900K is the better buy right now. Core i9-13900K comes in $1,562 cheaper on MSRP at $599 MSRP versus $2,161 MSRP, and it still gives you a 34.7% average FPS lead across 50 shared CPU game tests in our data. It is also 266.7% better value on MSRP (97.5 vs 26.6 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Xeon Gold 6423N makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2022), 45.8% larger total L3 cache (53 MB vs 36 MB), and AVX-512 support for heavier modern compute workloads. That makes it the safer long-term bet.

Core i9-13900K vs Xeon Gold 6423N Technical Specifications

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

Core i9-13900K

The Core i9-13900K is manufactured by Intel. It was released in 27 September 2022 (3 years ago). It is based on the Raptor Lake, Raptor Cove, Gracemont (2022) architecture. It features 24 cores and 32 threads. Base frequency is 3 GHz, with boost up to 5.7 GHz. L3 cache: 36 MB (total). L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 125 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 58,373 points. Launch price was $589.

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.

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Processing Power

The Core i9-13900K packs 24 cores / 32 threads, while the Xeon Gold 6423N offers 28 cores / 56 threads — the Xeon Gold 6423N has 4 more cores. Boost clocks reach 5.7 GHz on the Core i9-13900K versus 3.6 GHz on the Xeon Gold 6423N — a 45.2% clock advantage for the Core i9-13900K (base: 3 GHz vs 2 GHz). The Core i9-13900K is built on the Raptor Lake, Raptor Cove, Gracemont (2022) architecture. In PassMark, the Core i9-13900K scores 58,373 against the Xeon Gold 6423N's 57,434 — a 1.6% lead for the Core i9-13900K. L3 cache: 36 MB (total) on the Core i9-13900K vs 52.5 MB on the Xeon Gold 6423N.

Feature	Core i9-13900K	Xeon Gold 6423N
Cores / Threads	24 / 32	28 / 56+17%
Boost Clock	5.7 GHz+58%	3.6 GHz
Base Clock	3 GHz+50%	2 GHz
L3 Cache	36 MB (total)	52.5 MB+46%
L2 Cache	2 MB (per core)	—
Process	Intel 7 nm	Intel 7 nm
Architecture	Raptor Lake, Raptor Cove, Gracemont (2022)	—
PassMark	58,373+2%	57,434
Cinebench R23 Multi	40,000	—
Geekbench 6 Single	2,985	—
Geekbench 6 Multi	19,967	—

🧠

Memory & Platform

The Core i9-13900K uses the LGA1700 socket (PCIe 5.0), while the Xeon Gold 6423N uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Core i9-13900K versus 4800 on the Xeon Gold 6423N — the Core i9-13900K supports 16.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6423N supports up to 4096 GB of RAM compared to 192 GB — 2033.3% more capacity for professional workloads. Memory channels: 2 (Core i9-13900K) vs 8 (Xeon Gold 6423N). PCIe lanes: 20 (Core i9-13900K) vs 80 (Xeon Gold 6423N) — the Xeon Gold 6423N offers 60 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel Z790,Intel Z690 (Core i9-13900K) and C741 (Xeon Gold 6423N).

Feature	Core i9-13900K	Xeon Gold 6423N
Socket	LGA1700	LGA4677
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-5600+17%	4800
Max RAM Capacity	192 GB	4096 GB+2033%
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	20	80+300%

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Advanced Features

Only the Core i9-13900K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon Gold 6423N supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core i9-13900K) vs VT-x, VT-d (Xeon Gold 6423N). The Core i9-13900K includes integrated graphics (Intel UHD Graphics 770), while the Xeon Gold 6423N requires a dedicated GPU. Primary use case: Core i9-13900K targets Desktop. Direct competitor: Xeon Gold 6423N rivals EPYC 9354.

Feature	Core i9-13900K	Xeon Gold 6423N
Integrated GPU	Yes	No
IGPU Model	Intel UHD Graphics 770	None
Unlocked	Yes	No
AVX-512	No	Yes
Virtualization	true	VT-x, VT-d
Target Use	Desktop	—

💰

Value Analysis

At launch, the Core i9-13900K was priced at $599, while the Xeon Gold 6423N came in at $2161. On launch pricing ($599 vs $2161), Core i9-13900K was $1562 cheaper. In terms of value on MSRP (PassMark points per dollar), the Core i9-13900K delivers 97.5 pts/$ vs 26.6 pts/$ for the Xeon Gold 6423N — making the Core i9-13900K the 114.3% better value option.

Feature	Core i9-13900K	Xeon Gold 6423N
MSRP	$599-72%	$2161
Performance per Dollar	97.5+267%	26.6
Release Date	2022	2023

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