Core i9-13900KF vs Ryzen 9 7945HX3D

CPU

GPU

Core i9-13900KF

24 Cores32 Thrd125 WWMax: 5.7 GHz2022

Core family

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Ryzen 9 7945HX3D

16 Cores32 Thrd55 WWMax: 5.4 GHz2023

Ryzen family

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Core i9-13900KF vs Ryzen 9 7945HX3D Performance Spectrum

Core i9-13900KF

24 / 32

57,743

0.0%

57,803

+0.1%

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

Ryzen Threadripper 7970X

Ryzen 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.

Core i9-13900KF vs Ryzen 9 7945HX3D 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.

Core i9-13900KF vs Ryzen 9 7945HX3D: Pros, Cons & Final Verdict

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

Core i9-13900KF

2022

Why buy it

✅Better for gaming: +4.9% higher average FPS across 50 shared CPU benchmark tests.

Trade-offs

❌Lower PassMark (57,743 vs 57,803).
❌Smaller total L3 cache (36 MB vs 128 MB).
❌Launch MSRP is still $599 MSRP, while Ryzen 9 7945HX3D mostly shows up through inconsistent older-market listings.
❌127.3% higher power demand at 125W vs 55W.
❌No integrated graphics, while Ryzen 9 7945HX3D can still boot and troubleshoot without a discrete GPU.

Ryzen 9 7945HX3D

2023

Why buy it

✅+0.1% higher PassMark.
✅+255.6% larger total L3 cache (128 MB vs 36 MB).
✅Draws 55W instead of 125W, a 70W reduction.
✅40% more PCIe lanes (28 vs 20) for storage and expansion-heavy builds.
✅Integrated graphics onboard with AMD Radeon 610M, while Core i9-13900KF needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-13900KF across 50 shared CPU benchmark tests.

Quick Answers

So, is Ryzen 9 7945HX3D better than Core i9-13900KF?

It depends on what you want from the system. For gaming, Core i9-13900KF is ahead with a 4.9% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Ryzen 9 7945HX3D pulls ahead with 0.1% better PassMark. Ryzen 9 7945HX3D also has the bigger cache pool with 255.6% larger total L3 cache (128 MB vs 36 MB).

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

For streaming, content creation, and heavier multitasking, Ryzen 9 7945HX3D is the stronger fit. You are getting 0.1% better PassMark, backed by 16 cores and 32 threads. It also has the larger cache pool with 255.6% larger total L3 cache (128 MB vs 36 MB).

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

Ryzen 9 7945HX3D is still the faster CPU overall, but Core i9-13900KF is easier to justify if budget matters more than peak performance. Ryzen 9 7945HX3D comes in at an unclear MSRP at unclear MSRP versus $599 MSRP, and it still gives you 0.1% better PassMark. The compromise is that Core i9-13900KF is still the better pure gaming CPU with a 4.9% average FPS lead across 50 shared CPU game tests in our data. Core i9-13900KF is also 100.0% better value on MSRP (96.4 vs 0.0 PassMark/$), 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 7945HX3D makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2022), 255.6% larger total L3 cache (128 MB vs 36 MB), and more multi-core headroom with 16 cores / 32 threads instead of 24/32. That extra cache should keep paying off in CPU-limited games and high-refresh builds.

Core i9-13900KF vs Ryzen 9 7945HX3D Technical Specifications

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

Core i9-13900KF

The Core i9-13900KF is manufactured by Intel. It was released in 27 September 2022 (3 years ago). It is based on the Raptor Lake, Raptor Cove, Gracemont (2022) architecture. It features 24 cores and 32 threads. Base frequency is 3 GHz, with boost up to 5.7 GHz. L3 cache: 36 MB (total). L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 125 W, 253 Watt. Memory support: DDR5-5600, DDR4-3200. Passmark benchmark score: 57,743 points. Launch price was $564.

Ryzen 9 7945HX3D

The Ryzen 9 7945HX3D is manufactured by AMD. It was released in 2023-07-27. It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.3 GHz, with boost up to 5.4 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5-5200. Passmark benchmark score: 57,803 points. Launch price was $800.

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Processing Power

The Core i9-13900KF packs 24 cores / 32 threads, while the Ryzen 9 7945HX3D offers 16 cores / 32 threads — the Core i9-13900KF has 8 more cores. Boost clocks reach 5.7 GHz on the Core i9-13900KF versus 5.4 GHz on the Ryzen 9 7945HX3D — a 5.4% clock advantage for the Core i9-13900KF (base: 3 GHz vs 2.3 GHz). The Core i9-13900KF uses the Raptor Lake, Raptor Cove, Gracemont (2022) architecture (Intel 7 nm), while the Ryzen 9 7945HX3D uses Dragon Range-HX (Zen 4) (2023−2024) (5 nm). In PassMark, the Core i9-13900KF scores 57,743 against the Ryzen 9 7945HX3D's 57,803 — a 0.1% lead for the Ryzen 9 7945HX3D. L3 cache: 36 MB (total) on the Core i9-13900KF vs 128 MB (total) on the Ryzen 9 7945HX3D.

Feature	Core i9-13900KF	Ryzen 9 7945HX3D
Cores / Threads	24 / 32+50%	16 / 32
Boost Clock	5.7 GHz+6%	5.4 GHz
Base Clock	3 GHz+30%	2.3 GHz
L3 Cache	36 MB (total)	128 MB (total)+256%
L2 Cache	2 MB (per core)+100%	1 MB (per core)
Process	Intel 7 nm	5 nm-29%
Architecture	Raptor Lake, Raptor Cove, Gracemont (2022)	Dragon Range-HX (Zen 4) (2023−2024)
PassMark	57,743	57,803
Cinebench R23 Multi	39,565	—
Geekbench 6 Single	2,946	—
Geekbench 6 Multi	19,878	—

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Memory & Platform

The Core i9-13900KF uses the LGA1700 socket (PCIe 5.0), while the Ryzen 9 7945HX3D uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Core i9-13900KF versus 5200 on the Ryzen 9 7945HX3D — the Core i9-13900KF supports 7.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i9-13900KF supports up to 192 GB of RAM compared to 128 GB — 50% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (Core i9-13900KF) vs 28 (Ryzen 9 7945HX3D) — the Ryzen 9 7945HX3D offers 8 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel Z790,Intel Z690 (Core i9-13900KF) and FL1 (Ryzen 9 7945HX3D).

Feature	Core i9-13900KF	Ryzen 9 7945HX3D
Socket	LGA1700	FL1
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	DDR5-5600+8%	5200
Max RAM Capacity	192 GB+50%	128 GB
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	20	28+40%

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Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 9 7945HX3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: true (Core i9-13900KF) vs VT-x, VT-d, AMD-V (Ryzen 9 7945HX3D). The Ryzen 9 7945HX3D includes integrated graphics (AMD Radeon 610M), while the Core i9-13900KF requires a dedicated GPU. Primary use case: Core i9-13900KF targets Desktop. Direct competitor: Ryzen 9 7945HX3D rivals Core Ultra 9 285HX.

Feature	Core i9-13900KF	Ryzen 9 7945HX3D
Integrated GPU	No	Yes
IGPU Model	—	AMD Radeon 610M
Unlocked	Yes	Yes
AVX-512	No	Yes
Virtualization	true	VT-x, VT-d, AMD-V
Target Use	Desktop	—

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Value Analysis

At launch, the Core i9-13900KF was priced at $599, while the Ryzen 9 7945HX3D came in at $0. On launch pricing ($599 vs $0), Ryzen 9 7945HX3D was $599 cheaper.

Feature	Core i9-13900KF	Ryzen 9 7945HX3D
MSRP	$599	$0-100%
Performance per Dollar	96.4	—
Release Date	2022	2023

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