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 7945HX

2023

Why buy it

✅+4.6% higher Cinebench R23 multi-core.
✅Draws 55W instead of 120W, a 65W reduction.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Laptop Integrated), unlike Ryzen 9 9900X.

Trade-offs

❌Lower Geekbench single-core performance for gaming (2,774 vs 3,401).

Ryzen 9 9900X

2024

Why buy it

✅+22.6% higher Geekbench single-core performance for gaming and desktop responsiveness.

Trade-offs

❌Lower Cinebench R23 multi-core (33,003 vs 34,521).
❌Launch MSRP is still $499 MSRP, while Ryzen 9 7945HX mostly shows up through inconsistent older-market listings.
❌118.2% higher power demand at 120W vs 55W.
❌No boxed cooler included, unlike Ryzen 9 7945HX.

Ryzen 9 7945HX

2023

Ryzen 9 9900X

2024

Why buy it

✅+4.6% higher Cinebench R23 multi-core.
✅Draws 55W instead of 120W, a 65W reduction.
✅16.7% more PCIe lanes (28 vs 24) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Laptop Integrated), unlike Ryzen 9 9900X.

Why buy it

✅+22.6% higher Geekbench single-core performance for gaming and desktop responsiveness.

Trade-offs

❌Lower Geekbench single-core performance for gaming (2,774 vs 3,401).

Trade-offs

❌Lower Cinebench R23 multi-core (33,003 vs 34,521).
❌Launch MSRP is still $499 MSRP, while Ryzen 9 7945HX mostly shows up through inconsistent older-market listings.
❌118.2% higher power demand at 120W vs 55W.
❌No boxed cooler included, unlike Ryzen 9 7945HX.

Quick Answers

So, is Ryzen 9 9900X better than Ryzen 9 7945HX?

It depends on what matters more to you. For gaming, Ryzen 9 9900X is ahead with a 0.7% average FPS lead across 4 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 9 7945HX pulls ahead with 4.6% better Cinebench R23 multi-core.

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

For streaming, content creation, and heavier multitasking, Ryzen 9 7945HX is the better fit. You are getting 4.6% better Cinebench R23 multi-core, backed by 16 cores and 32 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 $499 MSRP versus unclear MSRP, and it gives you a 0.7% average FPS lead across 4 shared CPU game tests in our data. The trade-off is that Ryzen 9 7945HX is still stronger for heavier multi-core work with 4.6% better Cinebench R23 multi-core. It is also 100.0% better value on MSRP (109.3 vs 0.0 PassMark/$), 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 more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2023). That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

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 7945HX Benchmark Check

Ryzen 9 9900X Benchmark Check

Path of Exile 2

Preset	Ryzen 9 7945HX	Ryzen 9 9900X
1080p
low	301 FPS	287 FPS
medium	276 FPS	259 FPS
high	224 FPS	218 FPS
ultra	190 FPS	190 FPS
1440p
low	271 FPS	270 FPS
medium	226 FPS	218 FPS
high	172 FPS	170 FPS
ultra	153 FPS	152 FPS
4K
low	189 FPS	186 FPS
medium	157 FPS	151 FPS
high	119 FPS	112 FPS
ultra	107 FPS	100 FPS

Open Ryzen 9 7945HX Open Ryzen 9 9900X

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 7945HX	Ryzen 9 9900X
1080p
low	744 FPS	772 FPS
medium	620 FPS	625 FPS
high	466 FPS	467 FPS
ultra	397 FPS	393 FPS
1440p
low	630 FPS	635 FPS
medium	541 FPS	534 FPS
high	419 FPS	412 FPS
ultra	328 FPS	321 FPS
4K
low	355 FPS	356 FPS
medium	309 FPS	303 FPS
high	272 FPS	266 FPS
ultra	230 FPS	224 FPS

Open Ryzen 9 7945HX Open Ryzen 9 9900X

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 7945HX	Ryzen 9 9900X
1080p
low	893 FPS	899 FPS
medium	712 FPS	711 FPS
high	618 FPS	618 FPS
ultra	533 FPS	526 FPS
1440p
low	718 FPS	726 FPS
medium	572 FPS	577 FPS
high	487 FPS	492 FPS
ultra	418 FPS	418 FPS
4K
low	513 FPS	517 FPS
medium	427 FPS	432 FPS
high	383 FPS	388 FPS
ultra	323 FPS	322 FPS

Open Ryzen 9 7945HX Open Ryzen 9 9900X

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 7945HX	Ryzen 9 9900X
1080p
low	1129 FPS	1126 FPS
medium	1006 FPS	989 FPS
high	873 FPS	862 FPS
ultra	768 FPS	766 FPS
1440p
low	900 FPS	891 FPS
medium	790 FPS	774 FPS
high	689 FPS	677 FPS
ultra	584 FPS	580 FPS
4K
low	648 FPS	644 FPS
medium	578 FPS	569 FPS
high	510 FPS	502 FPS
ultra	436 FPS	433 FPS

Open Ryzen 9 7945HX Open Ryzen 9 9900X

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 7945HX and Ryzen 9 9900X

Ryzen 9 7945HX

The Ryzen 9 7945HX is manufactured by AMD. It was released in 2023-03-12. It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on CCD = 5 nm, I/O = 6 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 54,425 points. Launch price was $700.

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.

⚡

Processing Power

The Ryzen 9 7945HX packs 16 cores / 32 threads, while the Ryzen 9 9900X offers 12 cores / 24 threads — the Ryzen 9 7945HX has 4 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 7945HX versus 5.6 GHz on the Ryzen 9 9900X — a 3.6% clock advantage for the Ryzen 9 9900X (base: 2.5 GHz vs 4.4 GHz). The Ryzen 9 7945HX uses the Dragon Range-HX (Zen 4) (2023−2024) architecture (CCD = 5 nm, I/O = 6 nm), while the Ryzen 9 9900X uses Granite Ridge (2024−2025) (4 nm). In PassMark, the Ryzen 9 7945HX scores 54,425 against the Ryzen 9 9900X's 54,530 — a 0.2% lead for the Ryzen 9 9900X. Cinebench R23 multi-core: 34,521 vs 33,003 (4.5% advantage for the Ryzen 9 7945HX). Geekbench 6 single-core — the metric most relevant to gaming — records 2,774 vs 3,401, a 20.3% lead for the Ryzen 9 9900X that directly translates to higher frame rates. Multi-core Geekbench: 16,214 vs 19,756 (19.7% advantage for the Ryzen 9 9900X). Both processors carry 64 MB (total) of L3 cache.

Feature	Ryzen 9 7945HX	Ryzen 9 9900X
Cores / Threads	16 / 32+33%	12 / 24
Boost Clock	5.4 GHz	5.6 GHz+4%
Base Clock	2.5 GHz	4.4 GHz+76%
L3 Cache	64 MB (total)	64 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	CCD = 5 nm, I/O = 6 nm	4 nm-20%
Architecture	Dragon Range-HX (Zen 4) (2023−2024)	Granite Ridge (2024−2025)
PassMark	54,425	54,530
Cinebench R23 Multi	34,521+5%	33,003
Geekbench 6 Single	2,774	3,401+23%
Geekbench 6 Multi	16,214	19,756+22%

🧠

Memory & Platform

The Ryzen 9 7945HX uses the FL1 socket (PCIe 5.0), while the Ryzen 9 9900X uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-5200 memory speed. The Ryzen 9 9900X supports up to 256 GB of RAM compared to 64 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (Ryzen 9 7945HX) vs 24 (Ryzen 9 9900X) — the Ryzen 9 7945HX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FL1 (Ryzen 9 7945HX) and A620,B650,X670,X870 (Ryzen 9 9900X).

Feature	Ryzen 9 7945HX	Ryzen 9 9900X
Socket	FL1	AM5
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-5200	DDR5-5600
Max RAM Capacity	64 GB	256 GB+300%
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. Both support AMD-V virtualization. Both include integrated graphics — Radeon 610M (Ryzen 9 7945HX) and Radeon 610M (Ryzen 9 9900X) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 9 7945HX targets Extreme Gaming / Mobile Workstation. Direct competitor: Ryzen 9 7945HX rivals Core i9-14900HX.

Feature	Ryzen 9 7945HX	Ryzen 9 9900X
Integrated GPU	Yes	Yes
IGPU Model	Radeon 610M	Radeon 610M
Unlocked	Yes	Yes
AVX-512	Yes	Yes
Virtualization	AMD-V	AMD-V
Target Use	Extreme Gaming / Mobile Workstation	—