Core i9-10940X vs Ryzen 7 7840H

Core i9-10940X vs Ryzen 7 7840H Performance Spectrum

Core i9-10940X

14 / 28

27,684

0.0%

27,832

+0.5%

Ryzen Threadripper 3990X

Ryzen Threadripper PRO 9965WX

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 i9-10940X vs Ryzen 7 7840H 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 i9-10940X vs Ryzen 7 7840H: Pros, Cons & Final Verdict

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

Core i9-10940X

2019

Why buy it

✅+20.3% larger total L3 cache (19 MB vs 16 MB).
✅100+% more PCIe lanes (48 vs 0) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 7 7840H across 50 shared CPU benchmark tests.
❌Lower PassMark (27,684 vs 27,832).
❌Launch MSRP is still $784 MSRP, while Ryzen 7 7840H mostly shows up through inconsistent older-market listings.
❌371.4% higher power demand at 165W vs 35W.
❌Older platform position on LGA2066 with DDR4, while Ryzen 7 7840H moves to FP8 and DDR5.

Ryzen 7 7840H

2023

Why buy it

✅Better for gaming: +15.5% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 35W instead of 165W, a 130W reduction.
✅Newer platform on FP8 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

❌Smaller total L3 cache (16 MB vs 19 MB).

Quick Answers

So, is Ryzen 7 7840H better than Core i9-10940X?

Yes. Ryzen 7 7840H is the better all-around CPU here. It gives you a 15.5% average FPS lead across 50 shared CPU game tests in our data, 0.5% 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 7 7840H is the better pick. According to our tests, it delivers 15.5% 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 7 7840H is the stronger fit. You are getting 0.5% better PassMark, backed by 8 cores and 16 threads.

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

Ryzen 7 7840H is still the faster CPU overall, but Core i9-10940X is easier to justify if budget matters more than peak performance. Ryzen 7 7840H comes in at an unclear MSRP at unclear MSRP versus $784 MSRP, and it still gives you a 15.5% average FPS lead across 50 shared CPU game tests in our data. Core i9-10940X is also 100.0% better value on MSRP (35.3 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Ryzen 7 7840H makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2019), a healthier platform with FP8 and DDR5 instead of LGA2066, and more multi-core headroom with 8 cores / 16 threads instead of 14/28. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-10940X vs Ryzen 7 7840H Technical Specifications

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

Core i9-10940X

The Core i9-10940X is manufactured by Intel. It was released in 19 October 2019 (6 years ago). It is based on the Cascade Lake-X (2019) architecture. It features 14 cores and 28 threads. Base frequency is 3.3 GHz, with boost up to 4.8 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2933. Passmark benchmark score: 27,684 points. Launch price was $299.

Ryzen 7 7840H

The Ryzen 7 7840H is manufactured by AMD. It was released in Janeiro 2023 (2 years ago). It is based on the Phoenix (2023−2024) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 5.1 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: DDR5-5600. Passmark benchmark score: 27,832 points. Launch price was $299.

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Processing Power

The Core i9-10940X packs 14 cores / 28 threads, while the Ryzen 7 7840H offers 8 cores / 16 threads — the Core i9-10940X has 6 more cores. Boost clocks reach 4.8 GHz on the Core i9-10940X versus 5.1 GHz on the Ryzen 7 7840H — a 6.1% clock advantage for the Ryzen 7 7840H (base: 3.3 GHz vs 3.8 GHz). The Core i9-10940X uses the Cascade Lake-X (2019) architecture (14 nm), while the Ryzen 7 7840H uses Phoenix (2023−2024) (4 nm). In PassMark, the Core i9-10940X scores 27,684 against the Ryzen 7 7840H's 27,832 — a 0.5% lead for the Ryzen 7 7840H. L3 cache: 19.25 MB (total) on the Core i9-10940X vs 16 MB (total) on the Ryzen 7 7840H.

Feature	Core i9-10940X	Ryzen 7 7840H
Cores / Threads	14 / 28+75%	8 / 16
Boost Clock	4.8 GHz	5.1 GHz+6%
Base Clock	3.3 GHz	3.8 GHz+15%
L3 Cache	19.25 MB (total)+20%	16 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	14 nm	4 nm-71%
Architecture	Cascade Lake-X (2019)	Phoenix (2023−2024)
PassMark	27,684	27,832
Cinebench R23 Multi	19,000	—
Geekbench 6 Single	1,450	—
Geekbench 6 Multi	11,000	—

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Memory & Platform

The Core i9-10940X uses the LGA2066 socket (PCIe 3.0), while the Ryzen 7 7840H uses FP8 (PCIe 4.0) — making them incompatible on the same motherboard.

Feature	Core i9-10940X	Ryzen 7 7840H
Socket	LGA2066	FP8
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2933	—
Max RAM Capacity	256 GB	—
RAM Channels	4	—
ECC Support	No	—
PCIe Lanes	48	—

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Advanced Features

Virtualization: VT-x, VT-d (Core i9-10940X) / not specified (Ryzen 7 7840H). Primary use case: Core i9-10940X targets High-End Desktop.