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Ryzen 9 7945HX vs Ryzen 9 9900X3D

CPUCPUGPUGPU
AMD

Ryzen 9 7945HX

16 Cores32 Thrd55 WWMax: 5.4 GHz2023
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VS
AMD

Ryzen 9 9900X3D

12 Cores24 Thrd120 WWMax: 5.5 GHz2025
Ryzen family
·····
Buy on Amazon

Ryzen 9 7945HX vs Ryzen 9 9900X3D Performance Spectrum

Ryzen 9 7945HX
16 / 32
54,425
0.0%
brand logoRyzen 9 8945H
brand logoRyzen 7 7700X
brand logoRyzen 7 8840HX
brand logoRyzen 9 7900
brand logoRyzen 9 9950X3D
brand logoRyzen Threadripper PRO 7965WX
brand logoRyzen Threadripper PRO 5995WX
brand logoRyzen Threadripper 9970X
Ryzen 9 9900X3D
12 / 24
56,301
+3.4%
brand logoRyzen AI Max PRO 385
brand logoRyzen 7 9700X
brand logoRyzen AI Max PRO 390
brand logoRyzen Threadripper PRO 7945WX
brand logoRyzen 9 9950X3D
brand logoRyzen Threadripper PRO 3995WX
brand logoRyzen Threadripper 7970X
brand logoRyzen Threadripper PRO 7985WX

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.

Ryzen 9 7945HX vs Ryzen 9 9900X3D 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.

Path of Exile 2

Path of Exile 2

1080P
Ryzen 9 7945HX
low301 FPS
medium276 FPS
high224 FPS
ultra190 FPS
1080P
Ryzen 9 9900X3D
low281 FPS
medium257 FPS
high220 FPS
ultra191 FPS
Counter-Strike 2

Counter-Strike 2

1080P
Ryzen 9 7945HX
low744 FPS
medium620 FPS
high466 FPS
ultra397 FPS
1080P
Ryzen 9 9900X3D
low824 FPS
medium670 FPS
high497 FPS
ultra410 FPS
League of Legends

League of Legends

1080P
Ryzen 9 7945HX
low893 FPS
medium712 FPS
high618 FPS
ultra533 FPS
1080P
Ryzen 9 9900X3D
low890 FPS
medium722 FPS
high649 FPS
ultra559 FPS
Valorant

Valorant

1080P
Ryzen 9 7945HX
low1129 FPS
medium1006 FPS
high873 FPS
ultra768 FPS
1080P
Ryzen 9 9900X3D
low1116 FPS
medium1001 FPS
high878 FPS
ultra792 FPS
Among Us

Among Us

1080P
Ryzen 9 7945HX
low60 FPS
medium60 FPS
high60 FPS
ultra60 FPS
1080P
Ryzen 9 9900X3D
low60 FPS
medium60 FPS
high60 FPS
ultra60 FPS
Apex Legends

Apex Legends

1080P
Ryzen 9 7945HX
low300 FPS
medium300 FPS
high300 FPS
ultra300 FPS
1080P
Ryzen 9 9900X3D
low300 FPS
medium300 FPS
high300 FPS
ultra300 FPS
ARC Raiders

ARC Raiders

1080P
Ryzen 9 7945HX
low315 FPS
medium245 FPS
high225 FPS
ultra200 FPS
1080P
Ryzen 9 9900X3D
low347 FPS
medium267 FPS
high243 FPS
ultra209 FPS
Baldur's Gate 3

Baldur's Gate 3

1080P
Ryzen 9 7945HX
low276 FPS
medium239 FPS
high184 FPS
ultra150 FPS
1080P
Ryzen 9 9900X3D
low314 FPS
medium271 FPS
high210 FPS
ultra167 FPS
Call of Duty: Black Ops 6

Call of Duty: Black Ops 6

1080P
Ryzen 9 7945HX
low339 FPS
medium306 FPS
high280 FPS
ultra242 FPS
1080P
Ryzen 9 9900X3D
low383 FPS
medium341 FPS
high295 FPS
ultra253 FPS
Call of Duty: Warzone

Call of Duty: Warzone

1080P
Ryzen 9 7945HX
low288 FPS
medium269 FPS
high227 FPS
ultra214 FPS
1080P
Ryzen 9 9900X3D
low266 FPS
medium252 FPS
high213 FPS
ultra200 FPS
Check FPS with Custom Builds

Ryzen 9 7945HX vs Ryzen 9 9900X3D: 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 7945HX

2023

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.
  • ✅Includes a boxed cooler (Laptop Integrated), unlike Ryzen 9 9900X3D.

Trade-offs

  • ❌No 3D V-Cache or similar L3 advantage, which matters in CPU-limited gaming (64 MB vs 128 MB).
  • ❌Lower Geekbench multi-core (16,214 vs 26,000).

Ryzen 9 9900X3D

2025

Why buy it

  • ✅Massive L3 cache advantage with 128 MB vs 64 MB, which is a real win in CPU-limited gaming.

Trade-offs

  • ❌Launch MSRP is still $599 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 9900X3D better than Ryzen 9 7945HX?
Yes. Ryzen 9 9900X3D is the better all-around CPU here. It gives you a 2.1% average FPS lead across 50 shared CPU game tests in our data, 60.4% better Geekbench multi-core, 3.4% higher 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 9 9900X3D is the better pick. According to our tests, it delivers 2.1% more average FPS across 50 shared CPU game tests. It also has a clear cache advantage at 128 MB versus 64 MB.
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, Ryzen 9 9900X3D is the stronger fit. You are getting 60.4% better Geekbench multi-core, backed by 12 cores and 24 threads. It also has the larger cache pool with 100% larger total L3 cache (128 MB vs 64 MB).
Which one is the smarter buy today, not just the cheaper CPU?
Ryzen 9 9900X3D is the better buy right now. Ryzen 9 9900X3D comes in at an unclear MSRP at $599 MSRP versus unclear MSRP, and it still gives you a 2.1% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (94.0 vs 0.0 PassMark/$), 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 9900X3D makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2023), 3D V-Cache and a much larger 128 MB L3 cache instead of 64 MB, and more multi-core headroom with 12 cores / 24 threads instead of 16/32. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 9 7945HX vs Ryzen 9 9900X3D Technical Specifications

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

AMD

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.

AMD

Ryzen 9 9900X3D

The Ryzen 9 9900X3D is manufactured by AMD. It was released in 6 January 2025 (less than a 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 5.5 GHz. L3 cache: 128 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: 56,301 points. Launch price was $599.

⚡

Processing Power

The Ryzen 9 7945HX packs 16 cores / 32 threads, while the Ryzen 9 9900X3D 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 5.5 GHz on the Ryzen 9 9900X3D — a 1.8% clock advantage for the Ryzen 9 9900X3D (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 9900X3D uses Granite Ridge (2024−2025) (4 nm). In PassMark, the Ryzen 9 7945HX scores 54,425 against the Ryzen 9 9900X3D's 56,301 — a 3.4% lead for the Ryzen 9 9900X3D. Geekbench 6 single-core — the metric most relevant to gaming — records 2,774 vs 3,400, a 20.3% lead for the Ryzen 9 9900X3D that directly translates to higher frame rates. Multi-core Geekbench: 16,214 vs 26,000 (46.4% advantage for the Ryzen 9 9900X3D). L3 cache: 64 MB (total) on the Ryzen 9 7945HX vs 128 MB (total) on the Ryzen 9 9900X3D.

FeatureRyzen 9 7945HXRyzen 9 9900X3D
Cores / Threads
16 / 32+33%
12 / 24
Boost Clock
5.4 GHz
5.5 GHz+2%
Base Clock
2.5 GHz
4.4 GHz+76%
L3 Cache
64 MB (total)
128 MB (total)+100%
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
56,301+3%
Cinebench R23 Multi
34,521
—
Geekbench 6 Single
2,774
3,400+23%
Geekbench 6 Multi
16,214
26,000+60%
🧠

Memory & Platform

The Ryzen 9 7945HX uses the FL1 socket (PCIe 5.0), while the Ryzen 9 9900X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5200 on the Ryzen 9 7945HX versus DDR5-5600 on the Ryzen 9 9900X3D — the Ryzen 9 9900X3D supports 7.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 9900X3D supports up to 192 GB of RAM compared to 64 GB — 200% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 28 (Ryzen 9 7945HX) vs 24 (Ryzen 9 9900X3D) — the Ryzen 9 7945HX offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FL1 (Ryzen 9 7945HX) and X670,X670E,X870,X870E (Ryzen 9 9900X3D).

FeatureRyzen 9 7945HXRyzen 9 9900X3D
Socket
FL1
AM5
PCIe Generation
PCIe 5.0
PCIe 5.0
Max RAM Speed
DDR5-5200
DDR5-5600+8%
Max RAM Capacity
64 GB
192 GB+200%
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 AMD Radeon Graphics (2 Cores) (Ryzen 9 9900X3D) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 9 7945HX targets Extreme Gaming / Mobile Workstation, Ryzen 9 9900X3D targets High End Gaming/Creation. Direct competitor: Ryzen 9 7945HX rivals Core i9-14900HX; Ryzen 9 9900X3D rivals Core Ultra 9 285K.

FeatureRyzen 9 7945HXRyzen 9 9900X3D
Integrated GPU
Yes
Yes
IGPU Model
Radeon 610M
AMD Radeon Graphics (2 Cores)
Unlocked
Yes
Yes
AVX-512
Yes
Yes
Virtualization
AMD-V
AMD-V
Target Use
Extreme Gaming / Mobile Workstation
High End Gaming/Creation