Core i9-11900KF vs Ryzen 7 PRO 7840U

Core i9-11900KF vs Ryzen 7 PRO 7840U Performance Spectrum

Core i9-11900KF

8 / 16

24,585

+0.2%

24,531

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

About PassMark

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 Ryzen 7 PRO 7840U 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 Ryzen 7 PRO 7840U: 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: +4.6% higher average FPS across 50 shared CPU benchmark tests.
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $513 MSRP, while Ryzen 7 PRO 7840U mostly shows up through inconsistent older-market listings.
❌1462.5% higher power demand at 125W vs 8W.
❌Older platform position on LGA1200 with DDR4, while Ryzen 7 PRO 7840U moves to FP7/FP8 and DDR5.

Ryzen 7 PRO 7840U

2023

Why buy it

✅Draws 8W instead of 125W, a 117W reduction.
✅Newer platform on FP7/FP8 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.
❌Lower PassMark (24,531 vs 24,585).

Quick Answers

So, is Core i9-11900KF better than Ryzen 7 PRO 7840U?

Yes. Core i9-11900KF is the better all-around CPU here. It gives you a 4.6% average FPS lead across 50 shared CPU game tests in our data and 0.2% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i9-11900KF is the better pick. According to our tests, it delivers 4.6% 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 i9-11900KF is the stronger fit. You are getting 0.2% better PassMark, backed by 8 cores and 16 threads.

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 $513 MSRP versus unclear MSRP, and it still gives you a 4.6% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (47.9 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Ryzen 7 PRO 7840U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021) and a healthier platform with FP7/FP8 and DDR5 instead of LGA1200. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-11900KF vs Ryzen 7 PRO 7840U 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.

Ryzen 7 PRO 7840U

The Ryzen 7 PRO 7840U is manufactured by AMD. It was released in 3 May 2023 (2 years ago). It is based on the Phoenix (Zen 4) (2023) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 5.1 GHz. L3 cache: 16 MB. L2 cache: 8 MB. Built on 4 nm process technology. Socket: FP7/FP8. Thermal design power (TDP): 28 Watt. Memory support: LPDDR5x, DDR5. Passmark benchmark score: 24,531 points. Launch price was $299.

⚡

Processing Power

Both the Core i9-11900KF and Ryzen 7 PRO 7840U share an identical 8-core/16-thread configuration. Boost clocks reach 5.2 GHz on the Core i9-11900KF versus 5.1 GHz on the Ryzen 7 PRO 7840U — a 1.9% clock advantage for the Core i9-11900KF (base: 3.5 GHz vs 3.3 GHz). The Core i9-11900KF uses the Rocket Lake (2021) architecture (14 nm), while the Ryzen 7 PRO 7840U uses Phoenix (Zen 4) (2023) (4 nm). In PassMark, the Core i9-11900KF scores 24,585 against the Ryzen 7 PRO 7840U's 24,531 — a 0.2% lead for the Core i9-11900KF. L3 cache: 16 MB (total) on the Core i9-11900KF vs 16 MB on the Ryzen 7 PRO 7840U.

Feature	Core i9-11900KF	Ryzen 7 PRO 7840U
Cores / Threads	8 / 16	8 / 16
Boost Clock	5.2 GHz+2%	5.1 GHz
Base Clock	3.5 GHz+6%	3.3 GHz
L3 Cache	16 MB (total)	16 MB
L2 Cache	256K (per core)+3100%	8 MB
Process	14 nm	4 nm-71%
Architecture	Rocket Lake (2021)	Phoenix (Zen 4) (2023)
PassMark	24,585	24,531
Cinebench R23 Multi	15,500	—

🧠

Memory & Platform

The Core i9-11900KF uses the LGA1200 socket (PCIe 4.0), while the Ryzen 7 PRO 7840U uses FP7/FP8 (PCIe 4.0) — making them incompatible on the same motherboard.