Ryzen Threadripper PRO 9945WX vs Xeon Gold 6423N

Ryzen Threadripper PRO 9945WX vs Xeon Gold 6423N Performance Spectrum

Ryzen Threadripper PRO 9945WX

12 / 24

56,854

0.0%

Ryzen Threadripper PRO 3995WX

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 7985WX

Xeon Gold 6423N

28 / 56

57,434

+1.0%

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 Threadripper PRO 9945WX vs Xeon Gold 6423N 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 Threadripper PRO 9945WX vs Xeon Gold 6423N: Pros, Cons & Final Verdict

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

Ryzen Threadripper PRO 9945WX

2025

Why buy it

✅Better for gaming: +32.6% higher average FPS across 50 shared CPU benchmark tests.
✅+21.9% larger total L3 cache (64 MB vs 53 MB).
✅Costs $821 less on MSRP ($1,340 MSRP vs $2,161 MSRP).
✅Delivers 59.6% more PassMark for each dollar spent, at 42.4 vs 26.6 PassMark/$ ($1,340 MSRP vs $2,161 MSRP).
✅60% more PCIe lanes (128 vs 80) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (56,854 vs 57,434).
❌79.5% higher power demand at 350W vs 195W.

Xeon Gold 6423N

2023

Why buy it

✅+1% higher PassMark.
✅Draws 195W instead of 350W, a 155W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 9945WX across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (53 MB vs 64 MB).
❌Lower PassMark per dollar, at 26.6 vs 42.4 PassMark/$ ($2,161 MSRP vs $1,340 MSRP).

Quick Answers

So, is Ryzen Threadripper PRO 9945WX better than Xeon Gold 6423N?

It depends on what you want from the system. For gaming, Ryzen Threadripper PRO 9945WX is ahead with a 32.6% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon Gold 6423N pulls ahead with 1% better PassMark. Ryzen Threadripper PRO 9945WX also has the bigger cache pool with 21.9% larger total L3 cache (64 MB vs 53 MB).

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

For streaming, content creation, and heavier multitasking, Xeon Gold 6423N is the stronger fit. You are getting 1% better PassMark, backed by 28 cores and 56 threads.

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

Ryzen Threadripper PRO 9945WX is the better buy right now. Ryzen Threadripper PRO 9945WX comes in $821 cheaper on MSRP at $1,340 MSRP versus $2,161 MSRP, and it still gives you a 32.6% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon Gold 6423N is still stronger for heavier multi-core work with 1% better PassMark. It is also 59.6% better value on MSRP (42.4 vs 26.6 PassMark/$), 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 Threadripper PRO 9945WX makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2023) and 21.9% larger total L3 cache (64 MB vs 53 MB). That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen Threadripper PRO 9945WX vs Xeon Gold 6423N Technical Specifications

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

Ryzen Threadripper PRO 9945WX

The Ryzen Threadripper PRO 9945WX is manufactured by AMD. It was released in 2025-01-01. It is based on the Shimada Peak (2025) architecture. It features 12 cores and 24 threads. Base frequency is 4.7 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: sTR5. Thermal design power (TDP): 350 Watt. Memory support: DDR5. Passmark benchmark score: 56,854 points. Launch price was $2,000.

Xeon Gold 6423N

The Xeon Gold 6423N is manufactured by Intel. It was released in 2023-07-01. It features 28 cores and 56 threads. Base frequency is 2 GHz, with boost up to 3.6 GHz. L3 cache: 52.5 MB. Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 195 Watt. Memory support: DDR5-4400. Passmark benchmark score: 57,434 points. Launch price was $2,161.

⚡

Processing Power

The Ryzen Threadripper PRO 9945WX packs 12 cores / 24 threads, while the Xeon Gold 6423N offers 28 cores / 56 threads — the Xeon Gold 6423N has 16 more cores. Boost clocks reach 5.4 GHz on the Ryzen Threadripper PRO 9945WX versus 3.6 GHz on the Xeon Gold 6423N — a 40% clock advantage for the Ryzen Threadripper PRO 9945WX (base: 4.7 GHz vs 2 GHz). The Ryzen Threadripper PRO 9945WX is built on the Shimada Peak (2025) architecture. In PassMark, the Ryzen Threadripper PRO 9945WX scores 56,854 against the Xeon Gold 6423N's 57,434 — a 1% lead for the Xeon Gold 6423N. L3 cache: 64 MB (total) on the Ryzen Threadripper PRO 9945WX vs 52.5 MB on the Xeon Gold 6423N.

Feature	Ryzen Threadripper PRO 9945WX	Xeon Gold 6423N
Cores / Threads	12 / 24	28 / 56+133%
Boost Clock	5.4 GHz+50%	3.6 GHz
Base Clock	4.7 GHz+135%	2 GHz
L3 Cache	64 MB (total)+22%	52.5 MB
L2 Cache	1 MB (per core)	—
Process	4 nm-43%	Intel 7 nm
Architecture	Shimada Peak (2025)	—
PassMark	56,854	57,434+1%

🧠

Memory & Platform

The Ryzen Threadripper PRO 9945WX uses the sTR5 socket (PCIe 4.0), while the Xeon Gold 6423N uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 6400 on the Ryzen Threadripper PRO 9945WX versus 4800 on the Xeon Gold 6423N — the Ryzen Threadripper PRO 9945WX supports 33.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6423N supports up to 4096 of RAM compared to 2048 — 100% more capacity for professional workloads. Both feature 8-channel memory with ECC support. PCIe lanes: 128 (Ryzen Threadripper PRO 9945WX) vs 80 (Xeon Gold 6423N) — the Ryzen Threadripper PRO 9945WX offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: WRX90,TRX50 (Ryzen Threadripper PRO 9945WX) and C741 (Xeon Gold 6423N).

Feature	Ryzen Threadripper PRO 9945WX	Xeon Gold 6423N
Socket	sTR5	LGA4677
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	6400+33%	4800
Max RAM Capacity	2048	4096+100%
RAM Channels	8	8
ECC Support	Yes	Yes
PCIe Lanes	128+60%	80

🔧

Advanced Features

Only the Ryzen Threadripper PRO 9945WX 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 Threadripper PRO 9945WX) vs VT-x, VT-d (Xeon Gold 6423N). Direct competitor: Ryzen Threadripper PRO 9945WX rivals Xeon w7-3545; Xeon Gold 6423N rivals EPYC 9354.

Feature	Ryzen Threadripper PRO 9945WX	Xeon Gold 6423N
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	Yes	No
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d, AMD-V	VT-x, VT-d

💰

Value Analysis

At launch, the Ryzen Threadripper PRO 9945WX was priced at $1340, while the Xeon Gold 6423N came in at $2161. On launch pricing ($1340 vs $2161), Ryzen Threadripper PRO 9945WX was $821 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen Threadripper PRO 9945WX delivers 42.4 pts/$ vs 26.6 pts/$ for the Xeon Gold 6423N — making the Ryzen Threadripper PRO 9945WX the 45.9% better value option.

Feature	Ryzen Threadripper PRO 9945WX	Xeon Gold 6423N
MSRP	$1340-38%	$2161
Performance per Dollar	42.4+59%	26.6
Release Date	2025	2023

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