Core i9-11900KB vs Ryzen 5 7640HS

Core i9-11900KB vs Ryzen 5 7640HS Performance Spectrum

Core i9-11900KB

8 / 16

22,693

0.0%

22,921

+1.0%

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 5 7640HS 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 5 7640HS: 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

✅+50% larger total L3 cache (24 MB vs 16 MB).
✅100+% more PCIe lanes (20 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel UHD Graphics, while Ryzen 5 7640HS needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 5 7640HS across 50 shared CPU benchmark tests.
❌Lower PassMark (22,693 vs 22,921).
❌Launch MSRP is still $539 MSRP, while Ryzen 5 7640HS mostly shows up through inconsistent older-market listings.
❌85.7% higher power demand at 65W vs 35W.
❌Older platform position on FCBGA1787 with DDR4, while Ryzen 5 7640HS moves to FP8 and DDR5.

Ryzen 5 7640HS

2023

Why buy it

✅Better for gaming: +13.7% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 35W instead of 65W, a 30W reduction.
✅Newer platform on FP8 with DDR5 support instead of FCBGA1787 and DDR4.

Trade-offs

❌Smaller total L3 cache (16 MB vs 24 MB).
❌No integrated graphics, while Core i9-11900KB can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 5 7640HS better than Core i9-11900KB?

Yes. Ryzen 5 7640HS is the better all-around CPU here. It gives you a 13.7% average FPS lead across 50 shared CPU game tests in our data, 1% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 5 7640HS is the better pick. According to our tests, it delivers 13.7% 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, Ryzen 5 7640HS is the stronger fit. You are getting 1% better PassMark, backed by 6 cores and 12 threads.

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

Ryzen 5 7640HS is the easy recommendation for a fresh desktop build. Ryzen 5 7640HS comes in at an unclear MSRP at unclear MSRP versus $539 MSRP, and it still gives you a 13.7% average FPS lead across 50 shared CPU game tests in our data. 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, especially when the gap is already 13.7% in the shared gaming data.

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

Ryzen 5 7640HS makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2021), a healthier platform with FP8 and DDR5 instead of FCBGA1787, and more multi-core headroom with 6 cores / 12 threads instead of 8/16. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-11900KB vs Ryzen 5 7640HS 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 5 7640HS

The Ryzen 5 7640HS is manufactured by AMD. It was released in Janeiro 2023 (2 years ago). It is based on the Phoenix-HS (Zen 4) (2023) architecture. It features 6 cores and 12 threads. Base frequency is 4.3 GHz, with boost up to 5 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP8. Thermal design power (TDP): 35 Watt. Memory support: DDR5. Passmark benchmark score: 22,921 points. Launch price was $299.

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Processing Power

The Core i9-11900KB packs 8 cores / 16 threads, while the Ryzen 5 7640HS offers 6 cores / 12 threads — the Core i9-11900KB has 2 more cores. Boost clocks reach 4.9 GHz on the Core i9-11900KB versus 5 GHz on the Ryzen 5 7640HS — a 2% clock advantage for the Ryzen 5 7640HS (base: 3.3 GHz vs 4.3 GHz). The Core i9-11900KB uses the Tiger Lake-H (2021) architecture (10 nm SuperFin), while the Ryzen 5 7640HS uses Phoenix-HS (Zen 4) (2023) (4 nm). In PassMark, the Core i9-11900KB scores 22,693 against the Ryzen 5 7640HS's 22,921 — a 1% lead for the Ryzen 5 7640HS. L3 cache: 24 MB (total) on the Core i9-11900KB vs 16 MB (total) on the Ryzen 5 7640HS.

Feature	Core i9-11900KB	Ryzen 5 7640HS
Cores / Threads	8 / 16+33%	6 / 12
Boost Clock	4.9 GHz	5 GHz+2%
Base Clock	3.3 GHz	4.3 GHz+30%
L3 Cache	24 MB (total)+50%	16 MB (total)
L2 Cache	1.25 MB (per core)+25%	1 MB (per core)
Process	10 nm SuperFin	4 nm-60%
Architecture	Tiger Lake-H (2021)	Phoenix-HS (Zen 4) (2023)
PassMark	22,693	22,921+1%
Cinebench R23 Multi	12,264	—
Geekbench 6 Multi	10,645	—

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Memory & Platform

The Core i9-11900KB uses the FCBGA1787 socket (PCIe 3.0), while the Ryzen 5 7640HS uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i9-11900KB	Ryzen 5 7640HS
Socket	FCBGA1787	FP8
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-3200	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	20	—

🔧

Advanced Features

Virtualization: VT-x, VT-d (Core i9-11900KB) / not specified (Ryzen 5 7640HS). The Core i9-11900KB includes integrated graphics (Intel UHD Graphics), while the Ryzen 5 7640HS requires a dedicated GPU.