Core i9-11900KF 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 i9-11900KF 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 i9-11900KF 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 i9-11900KF

2021

Why buy it

✅Better for gaming: +15.4% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 125W instead of 150W, a 25W reduction.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (24,585 vs 24,842).
❌Smaller total L3 cache (16 MB vs 23 MB).
❌Launch MSRP is still $513 MSRP, while Xeon Gold 5415+ mostly shows up through inconsistent older-market listings.
❌Older platform position on LGA1200 with DDR4, while Xeon Gold 5415+ moves to LGA4677 and DDR5.

Xeon Gold 5415+

2023

Why buy it

✅+1% higher PassMark.
✅+40.6% larger total L3 cache (23 MB vs 16 MB).
✅Newer platform on LGA4677 with DDR5 support instead of LGA1200 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-11900KF across 50 shared CPU benchmark tests.
❌20% higher power demand at 150W vs 125W.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Quick Answers

So, is Core i9-11900KF better than Xeon Gold 5415+?

Not really, because they are built for different jobs. Xeon Gold 5415+ makes more sense for workstation-style multi-core throughput, while Core i9-11900KF 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 Gold 5415+ is the stronger fit. You are getting 1% better PassMark, backed by 8 cores and 16 threads. It also has the larger cache pool with 40.6% larger total L3 cache (23 MB vs 16 MB).

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

Core i9-11900KF is the better buy right now. Core i9-11900KF comes in at an unclear MSRP at $513 MSRP versus unclear MSRP, and it still gives you a 15.4% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon Gold 5415+ is still stronger for heavier multi-core work with 1% better PassMark. It is also 100.0% better value on MSRP (47.9 vs 0.0 PassMark/$), 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 5415+ makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), a healthier platform with LGA4677 and DDR5 instead of LGA1200, 40.6% larger total L3 cache (23 MB vs 16 MB), and more multi-core headroom with 8 cores / 16 threads instead of 8/16. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-11900KF vs Xeon Gold 5415+ Technical Specifications

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

Core i9-11900KF

The Core i9-11900KF is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Rocket Lake (2021) architecture. It features 8 cores and 16 threads. Base frequency is 3.5 GHz, with boost up to 5.2 GHz. L3 cache: 16 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 125 Watt. Memory support: DDR4-3200. Passmark benchmark score: 24,585 points. Launch price was $299.

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

Both the Core i9-11900KF and Xeon Gold 5415+ share an identical 8-core/16-thread configuration. Boost clocks reach 5.2 GHz on the Core i9-11900KF versus 4.1 GHz on the Xeon Gold 5415+ — a 23.7% clock advantage for the Core i9-11900KF (base: 3.5 GHz vs 2.9 GHz). The Core i9-11900KF uses the Rocket Lake (2021) architecture (14 nm), while the Xeon Gold 5415+ uses Sapphire Rapids (2023−2024) (10 nm). In PassMark, the Core i9-11900KF scores 24,585 against the Xeon Gold 5415+'s 24,842 — a 1% lead for the Xeon Gold 5415+. L3 cache: 16 MB (total) on the Core i9-11900KF vs 22.5 MB on the Xeon Gold 5415+.

Feature	Core i9-11900KF	Xeon Gold 5415+
Cores / Threads	8 / 16	8 / 16
Boost Clock	5.2 GHz+27%	4.1 GHz
Base Clock	3.5 GHz+21%	2.9 GHz
L3 Cache	16 MB (total)	22.5 MB+41%
L2 Cache	256K (per core)+12700%	2 MB (per core)
Process	14 nm	10 nm-29%
Architecture	Rocket Lake (2021)	Sapphire Rapids (2023−2024)
PassMark	24,585	24,842+1%
Cinebench R23 Multi	15,500	—

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Memory & Platform

The Core i9-11900KF uses the LGA1200 socket (PCIe 4.0), while the Xeon Gold 5415+ uses LGA4677 (PCIe 4.0) — making them incompatible on the same motherboard.