Core i9-9920X vs Xeon Gold 5415+

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 i9-9920X vs Xeon Gold 5415+ 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 i9-9920X vs Xeon Gold 5415+: Pros, Cons & Final Verdict

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

Core i9-9920X

2018

Why buy it

✅+0.5% higher PassMark.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Gold 5415+ across 50 shared CPU benchmark tests.
❌Launch MSRP is still $1,189 MSRP, while Xeon Gold 5415+ mostly shows up through inconsistent older-market listings.
❌Older platform position on LGA2066 with DDR4, while Xeon Gold 5415+ moves to LGA4677 and DDR5.

Xeon Gold 5415+

2023

Why buy it

✅Better for gaming: +5.3% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 150W instead of 165W, a 15W reduction.
✅Newer platform on LGA4677 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

❌Lower PassMark (24,842 vs 24,974).

Quick Answers

So, is Xeon Gold 5415+ better than Core i9-9920X?

Not really, because they are built for different jobs. Xeon Gold 5415+ makes more sense for workstation-style multi-core throughput, while Core i9-9920X 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, Core i9-9920X is the stronger fit. You are getting 0.5% better PassMark, backed by 12 cores and 24 threads.

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

Xeon Gold 5415+ is still the much better call for a fresh build. Xeon Gold 5415+ comes in at an unclear MSRP at unclear MSRP versus $1,189 MSRP, and it still gives you a 5.3% average FPS lead across 50 shared CPU game tests in our data. Core i9-9920X only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2018 platform. Even with 100.0% better value on paper (21.0 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA2066.

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

Xeon Gold 5415+ makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2018) and a healthier platform with LGA4677 and DDR5 instead of LGA2066. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-9920X vs Xeon Gold 5415+ Technical Specifications

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

Core i9-9920X

The Core i9-9920X is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 12 cores and 24 threads. Base frequency is 3.5 GHz, with boost up to 4.5 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2666. Passmark benchmark score: 24,974 points. Launch price was $1,189.

Xeon Gold 5415+

The Xeon Gold 5415+ is manufactured by Intel. It was released in 10 January 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 8 cores and 16 threads. Base frequency is 2.9 GHz, with boost up to 4.1 GHz. L3 cache: 22.5 MB. L2 cache: 2 MB (per core). Built on 10 nm process technology. Socket: LGA4677. Thermal design power (TDP): 150 Watt. Memory support: DDR5-4400. Passmark benchmark score: 24,842 points. Launch price was $1,076.

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Processing Power

The Core i9-9920X packs 12 cores / 24 threads, while the Xeon Gold 5415+ offers 8 cores / 16 threads — the Core i9-9920X has 4 more cores. Boost clocks reach 4.5 GHz on the Core i9-9920X versus 4.1 GHz on the Xeon Gold 5415+ — a 9.3% clock advantage for the Core i9-9920X (base: 3.5 GHz vs 2.9 GHz). The Core i9-9920X uses the Skylake (server) (2017−2018) architecture (14 nm), while the Xeon Gold 5415+ uses Sapphire Rapids (2023−2024) (10 nm). In PassMark, the Core i9-9920X scores 24,974 against the Xeon Gold 5415+'s 24,842 — a 0.5% lead for the Core i9-9920X. L3 cache: 19.25 MB (total) on the Core i9-9920X vs 22.5 MB on the Xeon Gold 5415+.

Feature	Core i9-9920X	Xeon Gold 5415+
Cores / Threads	12 / 24+50%	8 / 16
Boost Clock	4.5 GHz+10%	4.1 GHz
Base Clock	3.5 GHz+21%	2.9 GHz
L3 Cache	19.25 MB (total)	22.5 MB+17%
L2 Cache	1 MB (per core)	2 MB (per core)+100%
Process	14 nm	10 nm-29%
Architecture	Skylake (server) (2017−2018)	Sapphire Rapids (2023−2024)
PassMark	24,974	24,842

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Memory & Platform

The Core i9-9920X uses the LGA2066 socket (PCIe 3.0), while the Xeon Gold 5415+ uses LGA4677 (PCIe 4.0) — making them incompatible on the same motherboard.