Ryzen 9 7900X vs Ryzen 9 8940HX

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.

Ryzen 9 7900X vs Ryzen 9 8940HX 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.

Ryzen 9 7900X vs Ryzen 9 8940HX: Pros, Cons & Final Verdict

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

Ryzen 9 7900X

2022

Why buy it

✅Better for gaming: +5.3% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Launch MSRP is still $549 MSRP, while Ryzen 9 8940HX mostly shows up through inconsistent older-market listings.
❌209.1% higher power demand at 170W vs 55W.

Ryzen 9 8940HX

2025

Why buy it

✅Draws 55W instead of 170W, a 115W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7900X across 50 shared CPU benchmark tests.
❌Lower PassMark (51,161 vs 51,329).

Quick Answers

So, is Ryzen 9 7900X better than Ryzen 9 8940HX?

Yes. Ryzen 9 7900X is the better all-around CPU here. It gives you a 5.3% average FPS lead across 50 shared CPU game tests in our data and 0.3% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 7900X is the better pick. According to our tests, it delivers 5.3% 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 9 7900X is the stronger fit. You are getting 0.3% better PassMark, backed by 12 cores and 24 threads.

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

Ryzen 9 7900X is the better buy right now. Ryzen 9 7900X comes in at an unclear MSRP at $549 MSRP versus unclear MSRP, and it still gives you a 5.3% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (93.5 vs 0.0 PassMark/$), 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 9 8940HX makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2022). That makes it the safer long-term bet.

Ryzen 9 7900X vs Ryzen 9 8940HX Technical Specifications

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

Ryzen 9 7900X

The Ryzen 9 7900X is manufactured by AMD. It was released in 2022-09-27. It is based on the Raphael (Zen4) (2022−2023) architecture. It features 12 cores and 24 threads. Base frequency is 4.7 GHz, with boost up to 5.6 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 170 Watt. Memory support: DDR5-5200. Passmark benchmark score: 51,329 points. Launch price was $549.

Ryzen 9 8940HX

The Ryzen 9 8940HX is manufactured by AMD. It was released in 23 April 2025 (less than a year ago). It is based on the Dragon Range (2025) architecture. It features 16 cores and 32 threads. Base frequency is 2.4 GHz, with boost up to 5.3 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 51,161 points. Launch price was $499.

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Processing Power

The Ryzen 9 7900X packs 12 cores / 24 threads, while the Ryzen 9 8940HX offers 16 cores / 32 threads — the Ryzen 9 8940HX has 4 more cores. Boost clocks reach 5.6 GHz on the Ryzen 9 7900X versus 5.3 GHz on the Ryzen 9 8940HX — a 5.5% clock advantage for the Ryzen 9 7900X (base: 4.7 GHz vs 2.4 GHz). The Ryzen 9 7900X uses the Raphael (Zen4) (2022−2023) architecture (5 nm), while the Ryzen 9 8940HX uses Dragon Range (2025) (5 nm). In PassMark, the Ryzen 9 7900X scores 51,329 against the Ryzen 9 8940HX's 51,161 — a 0.3% lead for the Ryzen 9 7900X. Both processors carry 64 MB (total) of L3 cache.

Feature	Ryzen 9 7900X	Ryzen 9 8940HX
Cores / Threads	12 / 24	16 / 32+33%
Boost Clock	5.6 GHz+6%	5.3 GHz
Base Clock	4.7 GHz+96%	2.4 GHz
L3 Cache	64 MB (total)	64 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	5 nm	5 nm
Architecture	Raphael (Zen4) (2022−2023)	Dragon Range (2025)
PassMark	51,329	51,161
Cinebench R23 Multi	29,557	—
Geekbench 6 Single	—	2,800
Geekbench 6 Multi	—	16,000

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Memory & Platform

The Ryzen 9 7900X uses the AM5 socket (PCIe 5.0), while the Ryzen 9 8940HX uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-5200 memory speed. The Ryzen 9 7900X 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 28 PCIe lanes. Chipset compatibility: AM5 (Ryzen 9 7900X) and AMD FL1 (Ryzen 9 8940HX).

Feature	Ryzen 9 7900X	Ryzen 9 8940HX
Socket	AM5	FL1
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-5200	DDR5-5200
Max RAM Capacity	128 GB+100%	64 GB
RAM Channels	2	2
ECC Support	Yes	No
PCIe Lanes	28	28

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Advanced Features

Only the Ryzen 9 7900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: AMD-V (Ryzen 9 7900X) vs true (Ryzen 9 8940HX). Both include integrated graphics — Radeon Graphics (Ryzen 9 7900X) and Radeon 610M (Ryzen 9 8940HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 9 7900X targets Gaming. Direct competitor: Ryzen 9 7900X rivals Core i9-13900K.