Core i9-10900K vs Ryzen 5 PRO 8640U

Core i9-10900K vs Ryzen 5 PRO 8640U Performance Spectrum

Core i9-10900K

10 / 20

22,382

0.0%

22,373

0.0%

Ryzen Threadripper PRO 3955WX

Ryzen 9 9900X3D

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 i9-10900K vs Ryzen 5 PRO 8640U 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 i9-10900K vs Ryzen 5 PRO 8640U: Pros, Cons & Final Verdict

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

Core i9-10900K

2020

Why buy it

✅+25% larger total L3 cache (20 MB vs 16 MB).
✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with UHD Graphics 630, while Ryzen 5 PRO 8640U needs a discrete GPU.

Trade-offs

❌Launch MSRP is still $499 MSRP, while Ryzen 5 PRO 8640U mostly shows up through inconsistent older-market listings.
❌346.4% higher power demand at 125W vs 28W.
❌Older platform position on LGA1200 with DDR4, while Ryzen 5 PRO 8640U moves to FP7 and DDR5.

Ryzen 5 PRO 8640U

2024

Why buy it

✅Draws 28W instead of 125W, a 97W reduction.
✅Newer platform on FP7 with DDR5 support instead of LGA1200 and DDR4.

Trade-offs

❌Lower PassMark (22,373 vs 22,382).
❌Smaller total L3 cache (16 MB vs 20 MB).
❌No integrated graphics, while Core i9-10900K can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core i9-10900K better than Ryzen 5 PRO 8640U?

Yes. Core i9-10900K is the better all-around CPU here. It gives you a 2.8% average FPS lead across 50 shared CPU game tests in our data and 0% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i9-10900K is the better pick. According to our tests, it delivers 2.8% 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 i9-10900K is the stronger fit. You are getting 0% better PassMark, backed by 10 cores and 20 threads. It also has the larger cache pool with 25% larger total L3 cache (20 MB vs 16 MB).

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

Core i9-10900K is the better buy right now. Core i9-10900K comes in at an unclear MSRP at $499 MSRP versus unclear MSRP, and it still gives you a 2.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (44.9 vs 0.0 PassMark/$), 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 5 PRO 8640U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2020) and a healthier platform with FP7 and DDR5 instead of LGA1200. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-10900K vs Ryzen 5 PRO 8640U Technical Specifications

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

Core i9-10900K

The Core i9-10900K is manufactured by Intel. It was released in 30 April 2020 (5 years ago). It is based on the Comet Lake (2020−2025) architecture. It features 10 cores and 20 threads. Base frequency is 3.7 GHz, with boost up to 5.2 GHz. L3 cache: 20 MB (total). L2 cache: 256 kB (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 125 Watt. Memory support: DDR4. Passmark benchmark score: 22,382 points. Launch price was $488.

Ryzen 5 PRO 8640U

The Ryzen 5 PRO 8640U is manufactured by AMD. It was released in 16 April 2024 (1 year ago). It is based on the Hawk Point (2024−2025) architecture. It features 6 cores and 12 threads. Base frequency is 3.5 GHz, with boost up to 4.9 GHz. L3 cache: 16 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: FP7. Thermal design power (TDP): 28 Watt. Memory support: DDR5. Passmark benchmark score: 22,373 points. Launch price was $299.

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Processing Power

The Core i9-10900K packs 10 cores / 20 threads, while the Ryzen 5 PRO 8640U offers 6 cores / 12 threads — the Core i9-10900K has 4 more cores. Boost clocks reach 5.2 GHz on the Core i9-10900K versus 4.9 GHz on the Ryzen 5 PRO 8640U — a 5.9% clock advantage for the Core i9-10900K (base: 3.7 GHz vs 3.5 GHz). The Core i9-10900K uses the Comet Lake (2020−2025) architecture (14 nm), while the Ryzen 5 PRO 8640U uses Hawk Point (2024−2025) (4 nm). In PassMark, the Core i9-10900K scores 22,382 against the Ryzen 5 PRO 8640U's 22,373 — a 0% lead for the Core i9-10900K. L3 cache: 20 MB (total) on the Core i9-10900K vs 16 MB (total) on the Ryzen 5 PRO 8640U.

Feature	Core i9-10900K	Ryzen 5 PRO 8640U
Cores / Threads	10 / 20+67%	6 / 12
Boost Clock	5.2 GHz+6%	4.9 GHz
Base Clock	3.7 GHz+6%	3.5 GHz
L3 Cache	20 MB (total)+25%	16 MB (total)
L2 Cache	256 kB (per core)	1 MB (per core)+300%
Process	14 nm	4 nm-71%
Architecture	Comet Lake (2020−2025)	Hawk Point (2024−2025)
PassMark	22,382	22,373

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Memory & Platform

The Core i9-10900K uses the LGA1200 socket (PCIe 3.0), while the Ryzen 5 PRO 8640U uses FP7 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i9-10900K	Ryzen 5 PRO 8640U
Socket	LGA1200	FP7
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2933	—
Max RAM Capacity	128 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i9-10900K) / not specified (Ryzen 5 PRO 8640U). The Core i9-10900K includes integrated graphics (UHD Graphics 630), while the Ryzen 5 PRO 8640U requires a dedicated GPU. Primary use case: Core i9-10900K targets Desktop.