Ryzen Threadripper PRO 9945WX vs Xeon W-3365

Ryzen Threadripper PRO 9945WX vs Xeon W-3365 Performance Spectrum

Ryzen Threadripper PRO 9945WX

12 / 24

56,854

0.0%

Ryzen Threadripper PRO 3995WX

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 7985WX

Xeon W-3365

32 / 64

57,312

+0.8%

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 W-3365 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 W-3365: 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: +15.9% higher average FPS across 50 shared CPU benchmark tests.
✅+33.3% larger total L3 cache (64 MB vs 48 MB).
✅Costs $2,159 less on MSRP ($1,340 MSRP vs $3,499 MSRP).
✅Delivers 159.0% more PassMark for each dollar spent, at 42.4 vs 16.4 PassMark/$ ($1,340 MSRP vs $3,499 MSRP).
✅Newer platform on sTR5 with DDR5 support instead of LGA4189 and DDR4.

Trade-offs

❌Lower PassMark (56,854 vs 57,312).
❌29.6% higher power demand at 350W vs 270W.

Xeon W-3365

2021

Why buy it

✅+0.8% higher PassMark.
✅Draws 270W instead of 350W, a 80W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 9945WX across 50 shared CPU benchmark tests.
❌Smaller total L3 cache (48 MB vs 64 MB).
❌Lower PassMark per dollar, at 16.4 vs 42.4 PassMark/$ ($3,499 MSRP vs $1,340 MSRP).
❌Older platform position on LGA4189 with DDR4, while Ryzen Threadripper PRO 9945WX moves to sTR5 and DDR5.

Quick Answers

So, is Ryzen Threadripper PRO 9945WX better than Xeon W-3365?

It depends on what you want from the system. For gaming, Ryzen Threadripper PRO 9945WX is ahead with a 15.9% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon W-3365 pulls ahead with 0.8% better PassMark. Ryzen Threadripper PRO 9945WX also has the bigger cache pool with 33.3% larger total L3 cache (64 MB vs 48 MB).

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

For streaming, content creation, and heavier multitasking, Xeon W-3365 is the stronger fit. You are getting 0.8% better PassMark, backed by 32 cores and 64 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 $2,159 cheaper on MSRP at $1,340 MSRP versus $3,499 MSRP, and it still gives you a 15.9% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon W-3365 is still stronger for heavier multi-core work with 0.8% better PassMark. It is also 159.0% better value on MSRP (42.4 vs 16.4 PassMark/$), 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 2021), a healthier platform with sTR5 and DDR5 instead of LGA4189, and 33.3% larger total L3 cache (64 MB vs 48 MB). That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen Threadripper PRO 9945WX vs Xeon W-3365 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 W-3365

The Xeon W-3365 is manufactured by Intel. It was released in 2021-07-29. It is based on the Ice Lake-W (2021) architecture. It features 32 cores and 64 threads. Base frequency is 2.7 GHz, with boost up to 4 GHz. L3 cache: 48 MB (total). L2 cache: 1 MB (per core). Built on 10 nm process technology. Socket: LGA4189. Thermal design power (TDP): 270 Watt. Memory support: DDR4-3200. Passmark benchmark score: 57,312 points. Launch price was $3,499.

⚡

Processing Power

The Ryzen Threadripper PRO 9945WX packs 12 cores / 24 threads, while the Xeon W-3365 offers 32 cores / 64 threads — the Xeon W-3365 has 20 more cores. Boost clocks reach 5.4 GHz on the Ryzen Threadripper PRO 9945WX versus 4 GHz on the Xeon W-3365 — a 29.8% clock advantage for the Ryzen Threadripper PRO 9945WX (base: 4.7 GHz vs 2.7 GHz). The Ryzen Threadripper PRO 9945WX uses the Shimada Peak (2025) architecture (4 nm), while the Xeon W-3365 uses Ice Lake-W (2021) (10 nm). In PassMark, the Ryzen Threadripper PRO 9945WX scores 56,854 against the Xeon W-3365's 57,312 — a 0.8% lead for the Xeon W-3365. L3 cache: 64 MB (total) on the Ryzen Threadripper PRO 9945WX vs 48 MB (total) on the Xeon W-3365.

Feature	Ryzen Threadripper PRO 9945WX	Xeon W-3365
Cores / Threads	12 / 24	32 / 64+167%
Boost Clock	5.4 GHz+35%	4 GHz
Base Clock	4.7 GHz+74%	2.7 GHz
L3 Cache	64 MB (total)+33%	48 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	4 nm-60%	10 nm
Architecture	Shimada Peak (2025)	Ice Lake-W (2021)
PassMark	56,854	57,312
Geekbench 6 Single	—	1,960
Geekbench 6 Multi	—	16,817

🧠

Memory & Platform

The Ryzen Threadripper PRO 9945WX uses the sTR5 socket (PCIe 4.0), while the Xeon W-3365 uses LGA4189 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 6400 on the Ryzen Threadripper PRO 9945WX versus DDR4-3200 on the Xeon W-3365 — the Ryzen Threadripper PRO 9945WX supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon W-3365 supports up to 4096 GB of RAM compared to 2048 GB — 100% more capacity for professional workloads. Both feature 8-channel memory with ECC support. PCIe lanes: 128 (Ryzen Threadripper PRO 9945WX) vs 64 (Xeon W-3365) — the Ryzen Threadripper PRO 9945WX offers 64 more lanes for additional GPUs or NVMe drives. Chipset compatibility: WRX90,TRX50 (Ryzen Threadripper PRO 9945WX) and Intel C621A (Xeon W-3365).

Feature	Ryzen Threadripper PRO 9945WX	Xeon W-3365
Socket	sTR5	LGA4189
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	6400+100%	DDR4-3200
Max RAM Capacity	2048 GB	4096 GB+100%
RAM Channels	8	8
ECC Support	Yes	Yes
PCIe Lanes	128+100%	64

🔧

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 true (Xeon W-3365). Direct competitor: Ryzen Threadripper PRO 9945WX rivals Xeon w7-3545; Xeon W-3365 rivals EPYC 7543.

Feature	Ryzen Threadripper PRO 9945WX	Xeon W-3365
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	Yes	No
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d, AMD-V	true

💰

Value Analysis

At launch, the Ryzen Threadripper PRO 9945WX was priced at $1340, while the Xeon W-3365 came in at $3499. On launch pricing ($1340 vs $3499), Ryzen Threadripper PRO 9945WX was $2159 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen Threadripper PRO 9945WX delivers 42.4 pts/$ vs 16.4 pts/$ for the Xeon W-3365 — making the Ryzen Threadripper PRO 9945WX the 88.6% better value option.

Feature	Ryzen Threadripper PRO 9945WX	Xeon W-3365
MSRP	$1340-62%	$3499
Performance per Dollar	42.4+159%	16.4
Release Date	2025	2021

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