Ryzen 9 7940HX vs Ryzen 9 9900X

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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Ryzen 9 7940HX

2024

Why buy it

✅Draws 55W instead of 120W, a 65W reduction.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (53,628 vs 54,530).

Ryzen 9 9900X

2024

Why buy it

Trade-offs

❌Launch MSRP is still $499 MSRP, while Ryzen 9 7940HX mostly shows up through inconsistent older-market listings.
❌118.2% higher power demand at 120W vs 55W.

Ryzen 9 7940HX

2024

Ryzen 9 9900X

2024

Why buy it

✅Draws 55W instead of 120W, a 65W reduction.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.

Why buy it

Trade-offs

❌Lower PassMark (53,628 vs 54,530).

Trade-offs

❌Launch MSRP is still $499 MSRP, while Ryzen 9 7940HX mostly shows up through inconsistent older-market listings.
❌118.2% higher power demand at 120W vs 55W.

Quick Answers

So, is Ryzen 9 9900X better than Ryzen 9 7940HX?

Yes. Ryzen 9 9900X is the better overall CPU here. You are getting a 1.3% average FPS lead across 4 shared CPU game tests in our data and 1.7% better PassMark, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 9900X is the better pick here. According to our tests, it delivers 1.3% more average FPS across 4 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 9 9900X is the better fit. You are getting 1.7% better PassMark, backed by 12 cores and 24 threads.

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

Ryzen 9 9900X is the smarter buy today. Ryzen 9 9900X is at an unclear MSRP at $499 MSRP versus unclear MSRP, and it gives you a 1.3% average FPS lead across 4 shared CPU game tests in our data. It is also 100.0% better value on MSRP (109.3 vs 0.0 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Ryzen 9 9900X is the safer long-term CPU choice because it gives you more overall headroom and a better platform outlook.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Ryzen 9 7940HX Benchmark Check

Ryzen 9 9900X Benchmark Check

Path of Exile 2

Preset	Ryzen 9 7940HX	Ryzen 9 9900X
1080p
low	293 FPS	287 FPS
medium	268 FPS	259 FPS
high	217 FPS	218 FPS
ultra	183 FPS	190 FPS
1440p
low	268 FPS	270 FPS
medium	223 FPS	218 FPS
high	169 FPS	170 FPS
ultra	150 FPS	152 FPS
4K
low	186 FPS	186 FPS
medium	154 FPS	151 FPS
high	117 FPS	112 FPS
ultra	105 FPS	100 FPS

Open Ryzen 9 7940HX Open Ryzen 9 9900X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 7940HX	Ryzen 9 9900X
1080p
low	683 FPS	772 FPS
medium	574 FPS	625 FPS
high	433 FPS	467 FPS
ultra	369 FPS	393 FPS
1440p
low	579 FPS	635 FPS
medium	502 FPS	534 FPS
high	390 FPS	412 FPS
ultra	305 FPS	321 FPS
4K
low	326 FPS	356 FPS
medium	286 FPS	303 FPS
high	253 FPS	266 FPS
ultra	213 FPS	224 FPS

Open Ryzen 9 7940HX Open Ryzen 9 9900X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 7940HX	Ryzen 9 9900X
1080p
low	888 FPS	899 FPS
medium	708 FPS	711 FPS
high	615 FPS	618 FPS
ultra	531 FPS	526 FPS
1440p
low	714 FPS	726 FPS
medium	570 FPS	577 FPS
high	485 FPS	492 FPS
ultra	416 FPS	418 FPS
4K
low	511 FPS	517 FPS
medium	425 FPS	432 FPS
high	381 FPS	388 FPS
ultra	322 FPS	322 FPS

Open Ryzen 9 7940HX Open Ryzen 9 9900X

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 7940HX	Ryzen 9 9900X
1080p
low	1128 FPS	1126 FPS
medium	1006 FPS	989 FPS
high	873 FPS	862 FPS
ultra	768 FPS	766 FPS
1440p
low	898 FPS	891 FPS
medium	788 FPS	774 FPS
high	687 FPS	677 FPS
ultra	583 FPS	580 FPS
4K
low	646 FPS	644 FPS
medium	576 FPS	569 FPS
high	508 FPS	502 FPS
ultra	434 FPS	433 FPS

Open Ryzen 9 7940HX Open Ryzen 9 9900X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 7940HX and Ryzen 9 9900X

Ryzen 9 7940HX

The Ryzen 9 7940HX is manufactured by AMD. It was released in 2024-01-01. It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.4 GHz, with boost up to 5.2 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: 53,628 points. Launch price was $600.

Ryzen 9 9900X

The Ryzen 9 9900X is manufactured by AMD. It was released in 15 August 2024 (1 year ago). It is based on the Granite Ridge (2024−2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.4 GHz, with boost up to 5.6 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5. Passmark benchmark score: 54,530 points. Launch price was $499.

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Processing Power

The Ryzen 9 7940HX packs 16 cores / 32 threads, while the Ryzen 9 9900X offers 12 cores / 24 threads — the Ryzen 9 7940HX has 4 more cores. Boost clocks reach 5.2 GHz on the Ryzen 9 7940HX versus 5.6 GHz on the Ryzen 9 9900X — a 7.4% clock advantage for the Ryzen 9 9900X (base: 2.4 GHz vs 4.4 GHz). The Ryzen 9 7940HX uses the Dragon Range-HX (Zen 4) (2023−2024) architecture (5 nm), while the Ryzen 9 9900X uses Granite Ridge (2024−2025) (4 nm). In PassMark, the Ryzen 9 7940HX scores 53,628 against the Ryzen 9 9900X's 54,530 — a 1.7% lead for the Ryzen 9 9900X. Both processors carry 64 MB (total) of L3 cache.

Feature	Ryzen 9 7940HX	Ryzen 9 9900X
Cores / Threads	16 / 32+33%	12 / 24
Boost Clock	5.2 GHz	5.6 GHz+8%
Base Clock	2.4 GHz	4.4 GHz+83%
L3 Cache	64 MB (total)	64 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	5 nm	4 nm-20%
Architecture	Dragon Range-HX (Zen 4) (2023−2024)	Granite Ridge (2024−2025)
PassMark	53,628	54,530+2%
Cinebench R23 Multi	—	33,003
Geekbench 6 Single	—	3,401
Geekbench 6 Multi	—	19,756

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Memory & Platform

The Ryzen 9 7940HX uses the FL1 socket (PCIe 5.0), while the Ryzen 9 9900X uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 5200 on the Ryzen 9 7940HX versus DDR5-5600 on the Ryzen 9 9900X — the Ryzen 9 7940HX supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 9900X supports up to 256 GB of RAM compared to 128 — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (Ryzen 9 7940HX) vs 24 (Ryzen 9 9900X) — the Ryzen 9 7940HX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FL1 (Ryzen 9 7940HX) and A620,B650,X670,X870 (Ryzen 9 9900X).

Feature	Ryzen 9 7940HX	Ryzen 9 9900X
Socket	FL1	AM5
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	5200+103900%	DDR5-5600
Max RAM Capacity	128	256 GB+209715100%
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	28+17%	24

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, AMD-V (Ryzen 9 7940HX) vs AMD-V (Ryzen 9 9900X). Both include integrated graphics — AMD Radeon 610M (Ryzen 9 7940HX) and Radeon 610M (Ryzen 9 9900X) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: Ryzen 9 7940HX rivals Core i9-13900HX.