Ryzen 9 5900X vs Ryzen Threadripper PRO 9945WX

AMD

Ryzen 9 5900X

12 Cores24 Thrd105 WWMax: 4.8 GHz2020
VS
AMD

Ryzen Threadripper PRO 9945WX

12 Cores24 Thrd350 WWMax: 5.4 GHz2025

Ryzen 9 5900X vs Ryzen Threadripper PRO 9945WX Performance Spectrum

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 5900X vs Ryzen Threadripper PRO 9945WX 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 9 5900X vs Ryzen Threadripper PRO 9945WX: 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 5900X

2020

Why buy it

  • βœ…Costs $791 less on MSRP ($549 MSRP vs $1,340 MSRP).
  • βœ…Delivers 67.2% more PassMark for each dollar spent, at 71.0 vs 42.4 PassMark/$ ($549 MSRP vs $1,340 MSRP).
  • βœ…Draws 105W instead of 350W, a 245W reduction.

Trade-offs

  • ❌Lower PassMark (38,955 vs 56,854).
  • ❌Less compelling for workstation-style loads than Ryzen Threadripper PRO 9945WX, which brings 12 cores / 24 threads and 128 PCIe lanes.
  • ❌Older platform position on AM4 with DDR4, while Ryzen Threadripper PRO 9945WX moves to sTR5 and DDR5.

Ryzen Threadripper PRO 9945WX

2025

Why buy it

  • βœ…Better for workstations and heavier parallel workloads: 12 cores / 24 threads, plus 128 PCIe lanes vs 24.
  • βœ…Newer platform on sTR5 with DDR5 support instead of AM4 and DDR4.
  • βœ…433.3% more PCIe lanes (128 vs 24) for storage and expansion-heavy builds.

Trade-offs

  • ❌Lower PassMark per dollar, at 42.4 vs 71.0 PassMark/$ ($1,340 MSRP vs $549 MSRP).
  • ❌233.3% higher power demand at 350W vs 105W.

Quick Answers

So, is Ryzen Threadripper PRO 9945WX better than Ryzen 9 5900X?
Not really, because they are built for different jobs. Ryzen Threadripper PRO 9945WX makes more sense for workstation-style multi-core throughput, while Ryzen 9 5900X is the more practical desktop choice for gaming, platform cost, and everyday use.
Which one is better for gaming?
If gaming is the priority, Ryzen Threadripper PRO 9945WX is the better pick. According to our tests, it delivers 1.6% more average FPS across 50 shared CPU game tests.
Which one is better for streaming, content creation, and heavy multitasking?
For streaming, content creation, and heavier multitasking, Ryzen Threadripper PRO 9945WX is the stronger fit. You are getting 45.9% better PassMark, backed by 12 cores and 24 threads.
Which one is the smarter buy today, not just the cheaper CPU?
Ryzen Threadripper PRO 9945WX is still the faster CPU overall, but Ryzen 9 5900X is easier to justify if budget matters more than peak performance. Ryzen Threadripper PRO 9945WX comes in 144.1% more expensive on MSRP at $1,340 MSRP versus $549 MSRP, and it still gives you a 1.6% average FPS lead across 50 shared CPU game tests in our data. Ryzen 9 5900X is also 67.2% better value on MSRP (71.0 vs 42.4 PassMark/$), 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 Threadripper PRO 9945WX makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2020), a healthier platform with sTR5 and DDR5 instead of AM4, more multi-core headroom with 12 cores / 24 threads instead of 12/24, and AVX-512 support for heavier modern compute workloads. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 9 5900X vs Ryzen Threadripper PRO 9945WX Technical Specifications

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

AMD

Ryzen 9 5900X

The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020βˆ’2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.

AMD

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.

⚑

Processing Power

Both the Ryzen 9 5900X and Ryzen Threadripper PRO 9945WX share an identical 12-core/24-thread configuration. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 5.4 GHz on the Ryzen Threadripper PRO 9945WX β€” a 11.8% clock advantage for the Ryzen Threadripper PRO 9945WX (base: 3.7 GHz vs 4.7 GHz). The Ryzen 9 5900X uses the Vermeer (Zen3) (2020βˆ’2022) architecture (7 nm, 12 nm), while the Ryzen Threadripper PRO 9945WX uses Shimada Peak (2025) (4 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Ryzen Threadripper PRO 9945WX's 56,854 β€” a 37.4% lead for the Ryzen Threadripper PRO 9945WX. L3 cache: 64 MB on the Ryzen 9 5900X vs 64 MB (total) on the Ryzen Threadripper PRO 9945WX.

FeatureRyzen 9 5900XRyzen Threadripper PRO 9945WX
Cores / Threads
12 / 24
12 / 24
Boost Clock
4.8 GHz
5.4 GHz+13%
Base Clock
3.7 GHz
4.7 GHz+27%
L3 Cache
64 MB
64 MB (total)
L2 Cache
512K (per core)+51100%
1 MB (per core)
Process
7 nm, 12 nm
4 nm-43%
Architecture
Vermeer (Zen3) (2020βˆ’2022)
Shimada Peak (2025)
PassMark
38,955
56,854+46%
Cinebench R23 Multi
21,000
β€”
Geekbench 6 Single
2,174
β€”
Geekbench 6 Multi
11,888
β€”
🧠

Memory & Platform

The Ryzen 9 5900X uses the AM4 socket (PCIe 4.0), while the Ryzen Threadripper PRO 9945WX uses sTR5 (PCIe 4.0) β€” making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 5900X versus 6400 on the Ryzen Threadripper PRO 9945WX β€” the Ryzen Threadripper PRO 9945WX supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen Threadripper PRO 9945WX supports up to 2048 GB of RAM compared to 128 GB β€” 1500% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 5900X) vs 8 (Ryzen Threadripper PRO 9945WX). PCIe lanes: 24 (Ryzen 9 5900X) vs 128 (Ryzen Threadripper PRO 9945WX) β€” the Ryzen Threadripper PRO 9945WX offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X) and WRX90,TRX50 (Ryzen Threadripper PRO 9945WX).

FeatureRyzen 9 5900XRyzen Threadripper PRO 9945WX
Socket
AM4
sTR5
PCIe Generation
PCIe 4.0
PCIe 4.0
Max RAM Speed
DDR4-3200
6400+100%
Max RAM Capacity
128 GB
2048 GB+1500%
RAM Channels
2
8+300%
ECC Support
Yes
Yes
PCIe Lanes
24
128+433%
πŸ”§

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Ryzen Threadripper PRO 9945WX supports AVX-512 instructions β€” important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 5900X) vs VT-x, VT-d, AMD-V (Ryzen Threadripper PRO 9945WX). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K; Ryzen Threadripper PRO 9945WX rivals Xeon w7-3545.

FeatureRyzen 9 5900XRyzen Threadripper PRO 9945WX
Integrated GPU
No
No
IGPU Model
β€”
None
Unlocked
Yes
Yes
AVX-512
No
Yes
Virtualization
AMD-V
VT-x, VT-d, AMD-V
Target Use
Workstation
β€”
πŸ’°

Value Analysis

At launch, the Ryzen 9 5900X was priced at $549, while the Ryzen Threadripper PRO 9945WX came in at $1340. On launch pricing ($549 vs $1340), Ryzen 9 5900X was $791 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 5900X delivers 71.0 pts/$ vs 42.4 pts/$ for the Ryzen Threadripper PRO 9945WX β€” making the Ryzen 9 5900X the 50.3% better value option.

FeatureRyzen 9 5900XRyzen Threadripper PRO 9945WX
MSRP
$549-59%
$1340
Performance per Dollar
71.0+67%
42.4
Release Date
2020
2025

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