Core i9-11900KB vs Ryzen 7 6800H

Core i9-11900KB vs Ryzen 7 6800H Performance Spectrum

Core i9-11900KB

8 / 16

22,693

0.0%

22,932

+1.1%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 9945WX

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 i9-11900KB vs Ryzen 7 6800H 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 i9-11900KB vs Ryzen 7 6800H: Pros, Cons & Final Verdict

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

Core i9-11900KB

2021

Why buy it

✅Better for gaming: +5.5% higher average FPS across 50 shared CPU benchmark tests.
✅+50% larger total L3 cache (24 MB vs 16 MB).

Trade-offs

❌Lower Cinebench R23 multi-core (12,264 vs 12,957).
❌Launch MSRP is still $539 MSRP, while Ryzen 7 6800H mostly shows up through inconsistent older-market listings.
❌44.4% higher power demand at 65W vs 45W.
❌Older platform position on FCBGA1787 with DDR4, while Ryzen 7 6800H moves to FP7 and DDR5.

Ryzen 7 6800H

2022

Why buy it

✅+5.7% higher Cinebench R23 multi-core.
✅Draws 45W instead of 65W, a 20W reduction.
✅Newer platform on FP7 with DDR5 support instead of FCBGA1787 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-11900KB across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (16 MB vs 24 MB).

Quick Answers

So, is Ryzen 7 6800H better than Core i9-11900KB?

It depends on what you want from the system. For gaming, Core i9-11900KB is ahead with a 5.5% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 7 6800H pulls ahead with 5.7% better Cinebench R23 multi-core. Core i9-11900KB also has the bigger cache pool with 50% larger total L3 cache (24 MB vs 16 MB).

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

For streaming, content creation, and heavier multitasking, Ryzen 7 6800H is the stronger fit. You are getting 5.7% better Cinebench R23 multi-core, backed by 8 cores and 16 threads.

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

Ryzen 7 6800H is the easy recommendation for a fresh desktop build. Ryzen 7 6800H comes in at an unclear MSRP at unclear MSRP versus $539 MSRP, and it still gives you 5.7% better Cinebench R23 multi-core. Core i9-11900KB only looks good on raw value math because it is a cheap legacy laptop chip, not because it is a real desktop gaming recommendation. It simply does not keep up in modern games.

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

Ryzen 7 6800H makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2022 vs 2021), a healthier platform with FP7 and DDR5 instead of FCBGA1787, 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 i9-11900KB vs Ryzen 7 6800H Technical Specifications

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

Core i9-11900KB

The Core i9-11900KB is manufactured by Intel. It was released in Maio 2021 (4 years ago). It is based on the Tiger Lake-H (2021) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 4.9 GHz. L3 cache: 24 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1787. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 22,693 points. Launch price was $539.

Ryzen 7 6800H

The Ryzen 7 6800H is manufactured by AMD. It was released in Janeiro 2022 (3 years ago). It is based on the Rembrandt-H (Zen 3+) (2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.2 GHz, with boost up to 4.7 GHz. L3 cache: 16 MB (total). L2 cache: 512K (per core). Built on 6 nm process technology. Socket: FP7. Thermal design power (TDP): 45 Watt. Memory support: DDR5. Passmark benchmark score: 22,932 points. Launch price was $299.

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Processing Power

Both the Core i9-11900KB and Ryzen 7 6800H share an identical 8-core/16-thread configuration. Boost clocks reach 4.9 GHz on the Core i9-11900KB versus 4.7 GHz on the Ryzen 7 6800H — a 4.2% clock advantage for the Core i9-11900KB (base: 3.3 GHz vs 3.2 GHz). The Core i9-11900KB uses the Tiger Lake-H (2021) architecture (10 nm SuperFin), while the Ryzen 7 6800H uses Rembrandt-H (Zen 3+) (2022) (6 nm). In PassMark, the Core i9-11900KB scores 22,693 against the Ryzen 7 6800H's 22,932 — a 1% lead for the Ryzen 7 6800H. Cinebench R23 multi-core: 12,264 vs 12,957 (5.5% advantage for the Ryzen 7 6800H). Multi-core Geekbench: 10,645 vs 8,861 (18.3% advantage for the Core i9-11900KB). L3 cache: 24 MB (total) on the Core i9-11900KB vs 16 MB (total) on the Ryzen 7 6800H.

Feature	Core i9-11900KB	Ryzen 7 6800H
Cores / Threads	8 / 16	8 / 16
Boost Clock	4.9 GHz+4%	4.7 GHz
Base Clock	3.3 GHz+3%	3.2 GHz
L3 Cache	24 MB (total)+50%	16 MB (total)
L2 Cache	1.25 MB (per core)	512K (per core)+40860%
Process	10 nm SuperFin	6 nm-40%
Architecture	Tiger Lake-H (2021)	Rembrandt-H (Zen 3+) (2022)
PassMark	22,693	22,932+1%
Cinebench R23 Multi	12,264	12,957+6%
Geekbench 6 Single	—	1,845
Geekbench 6 Multi	10,645+20%	8,861

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Memory & Platform

The Core i9-11900KB uses the FCBGA1787 socket (PCIe 3.0), while the Ryzen 7 6800H uses FP7 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Core i9-11900KB versus DDR5-4800 on the Ryzen 7 6800H — the Ryzen 7 6800H supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i9-11900KB supports up to 128 GB of RAM compared to 64 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 20 PCIe lanes. Chipset compatibility: Mobile (Core i9-11900KB) and SoC (Ryzen 7 6800H).

Feature	Core i9-11900KB	Ryzen 7 6800H
Socket	FCBGA1787	FP7
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-3200	DDR5-4800+50%
Max RAM Capacity	128 GB+100%	64 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	20	20

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Advanced Features

Only the Core i9-11900KB has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Core i9-11900KB supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core i9-11900KB) vs AMD-V (SVM) (Ryzen 7 6800H). Both include integrated graphics — Intel UHD Graphics (Core i9-11900KB) and Radeon 680M (Ryzen 7 6800H) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 7 6800H targets Gaming. Direct competitor: Ryzen 7 6800H rivals Core i7-12700H.