Ryzen 9 7900X3D 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 7900X3D 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 7900X3D 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 7900X3D

2023

Why buy it

✅Better for gaming: +24.6% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (50,213 vs 51,161).
❌Launch MSRP is still $599 MSRP, while Ryzen 9 8940HX mostly shows up through inconsistent older-market listings.
❌118.2% higher power demand at 120W vs 55W.

Ryzen 9 8940HX

2025

Why buy it

✅+1.9% higher PassMark.
✅Draws 55W instead of 120W, a 65W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7900X3D across 50 shared CPU benchmark tests.

Quick Answers

So, is Ryzen 9 8940HX better than Ryzen 9 7900X3D?

It depends on what you want from the system. For gaming, Ryzen 9 7900X3D is ahead with a 24.6% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 9 8940HX pulls ahead with 1.9% better PassMark. Ryzen 9 7900X3D also has the bigger cache pool with 100% larger total L3 cache (128 MB vs 64 MB).

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

For streaming, content creation, and heavier multitasking, Ryzen 9 8940HX is the stronger fit. You are getting 1.9% better PassMark, backed by 16 cores and 32 threads.

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

Ryzen 9 8940HX is still the faster CPU overall, but Ryzen 9 7900X3D is easier to justify if budget matters more than peak performance. Ryzen 9 8940HX comes in at an unclear MSRP at unclear MSRP versus $599 MSRP, and it still gives you 1.9% better PassMark. The compromise is that Ryzen 9 7900X3D is still the better pure gaming CPU with a 24.6% average FPS lead across 50 shared CPU game tests in our data. Ryzen 9 7900X3D is also 100.0% better value on MSRP (83.8 vs 0.0 PassMark/$), 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 9 8940HX makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2023) and more multi-core headroom with 16 cores / 32 threads instead of 12/24. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Ryzen 9 7900X3D vs Ryzen 9 8940HX Technical Specifications

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

Ryzen 9 7900X3D

The Ryzen 9 7900X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (2023−2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.4 GHz, with boost up to 5.6 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 50,213 points. Launch price was $599.

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 7900X3D 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 7900X3D versus 5.3 GHz on the Ryzen 9 8940HX — a 5.5% clock advantage for the Ryzen 9 7900X3D (base: 4.4 GHz vs 2.4 GHz). The Ryzen 9 7900X3D uses the Raphael (2023−2025) architecture (5 nm, 6 nm), while the Ryzen 9 8940HX uses Dragon Range (2025) (5 nm). In PassMark, the Ryzen 9 7900X3D scores 50,213 against the Ryzen 9 8940HX's 51,161 — a 1.9% lead for the Ryzen 9 8940HX. L3 cache: 128 MB (total) on the Ryzen 9 7900X3D vs 64 MB (total) on the Ryzen 9 8940HX.

Feature	Ryzen 9 7900X3D	Ryzen 9 8940HX
Cores / Threads	12 / 24	16 / 32+33%
Boost Clock	5.6 GHz+6%	5.3 GHz
Base Clock	4.4 GHz+83%	2.4 GHz
L3 Cache	128 MB (total)+100%	64 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	5 nm, 6 nm	5 nm
Architecture	Raphael (2023−2025)	Dragon Range (2025)
PassMark	50,213	51,161+2%
Geekbench 6 Single	—	2,800
Geekbench 6 Multi	—	16,000

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Memory & Platform

The Ryzen 9 7900X3D 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 5200 memory speed. The Ryzen 9 7900X3D 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 7900X3D) and AMD FL1 (Ryzen 9 8940HX).

Feature	Ryzen 9 7900X3D	Ryzen 9 8940HX
Socket	AM5	FL1
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	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 7900X3D 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: VT-x, VT-d, AMD-V (Ryzen 9 7900X3D) vs true (Ryzen 9 8940HX). Both include integrated graphics — AMD Radeon Graphics (Ryzen 9 7900X3D) and Radeon 610M (Ryzen 9 8940HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: Ryzen 9 7900X3D rivals Core i7-14700K.