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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Ryzen 9 9955HX

2025

Why buy it

✅Draws 55W instead of 350W, a 295W reduction.
✅Integrated graphics onboard with Radeon 610M, while Ryzen Threadripper PRO 9945WX needs a discrete GPU.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 9945WX across 4 shared CPU benchmark tests.
❌Lower PassMark (55,711 vs 56,854).
❌Less compelling for workstation-style loads than Ryzen Threadripper PRO 9945WX, which brings 12 cores / 24 threads and 128 PCIe lanes.

Ryzen Threadripper PRO 9945WX

2025

Why buy it

✅Better for gaming: +4.9% higher average FPS across 4 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 12 cores / 24 threads, plus 128 PCIe lanes vs 28.
✅357.1% more PCIe lanes (128 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $1,340 MSRP, while Ryzen 9 9955HX mostly shows up through inconsistent older-market listings.
❌536.4% higher power demand at 350W vs 55W.
❌No integrated graphics, while Ryzen 9 9955HX can still boot and troubleshoot without a discrete GPU.

Ryzen 9 9955HX

2025

Ryzen Threadripper PRO 9945WX

2025

Why buy it

✅Draws 55W instead of 350W, a 295W reduction.
✅Integrated graphics onboard with Radeon 610M, while Ryzen Threadripper PRO 9945WX needs a discrete GPU.

Why buy it

✅Better for gaming: +4.9% higher average FPS across 4 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 12 cores / 24 threads, plus 128 PCIe lanes vs 28.
✅357.1% more PCIe lanes (128 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen Threadripper PRO 9945WX across 4 shared CPU benchmark tests.
❌Lower PassMark (55,711 vs 56,854).
❌Less compelling for workstation-style loads than Ryzen Threadripper PRO 9945WX, which brings 12 cores / 24 threads and 128 PCIe lanes.

Trade-offs

❌Launch MSRP is still $1,340 MSRP, while Ryzen 9 9955HX mostly shows up through inconsistent older-market listings.
❌536.4% higher power demand at 350W vs 55W.
❌No integrated graphics, while Ryzen 9 9955HX can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen Threadripper PRO 9945WX better than Ryzen 9 9955HX?

Not in a simple one-size-fits-all way. Ryzen Threadripper PRO 9945WX makes more sense for workstation-style multi-core throughput, while Ryzen 9 9955HX is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

If gaming is the priority, Ryzen Threadripper PRO 9945WX is the better pick here. According to our tests, it delivers 4.9% more average FPS across 4 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 better fit. You are getting 2.1% 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 the smarter buy today. Ryzen Threadripper PRO 9945WX is at an unclear MSRP at $1,340 MSRP versus unclear MSRP, and it gives you a 4.9% average FPS lead across 4 shared CPU game tests in our data. It is also 100.0% better value on MSRP (42.4 vs 0.0 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

Which one is more future-proof for 2026 and beyond?

Ryzen Threadripper PRO 9945WX is the safer long-term CPU choice because it gives you more overall headroom and a better platform outlook.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Ryzen 9 9955HX Benchmark Check

Ryzen Threadripper PRO 9945WX Benchmark Check

Path of Exile 2

Preset	Ryzen 9 9955HX	Ryzen Threadripper PRO 9945WX
1080p
low	284 FPS	278 FPS
medium	261 FPS	253 FPS
high	214 FPS	216 FPS
ultra	180 FPS	188 FPS
1440p
low	260 FPS	262 FPS
medium	217 FPS	214 FPS
high	167 FPS	169 FPS
ultra	147 FPS	152 FPS
4K
low	181 FPS	180 FPS
medium	151 FPS	147 FPS
high	115 FPS	111 FPS
ultra	102 FPS	98 FPS

Open Ryzen 9 9955HX Open Ryzen Threadripper PRO 9945WX

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 9955HX	Ryzen Threadripper PRO 9945WX
1080p
low	666 FPS	786 FPS
medium	577 FPS	649 FPS
high	433 FPS	483 FPS
ultra	369 FPS	408 FPS
1440p
low	564 FPS	645 FPS
medium	503 FPS	552 FPS
high	389 FPS	426 FPS
ultra	305 FPS	331 FPS
4K
low	318 FPS	362 FPS
medium	288 FPS	314 FPS
high	253 FPS	275 FPS
ultra	214 FPS	232 FPS

Open Ryzen 9 9955HX Open Ryzen Threadripper PRO 9945WX

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 9955HX	Ryzen Threadripper PRO 9945WX
1080p
low	848 FPS	886 FPS
medium	678 FPS	704 FPS
high	600 FPS	622 FPS
ultra	515 FPS	534 FPS
1440p
low	678 FPS	712 FPS
medium	542 FPS	566 FPS
high	469 FPS	488 FPS
ultra	397 FPS	414 FPS
4K
low	482 FPS	507 FPS
medium	399 FPS	418 FPS
high	359 FPS	375 FPS
ultra	301 FPS	315 FPS

Open Ryzen 9 9955HX Open Ryzen Threadripper PRO 9945WX

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 9955HX	Ryzen Threadripper PRO 9945WX
1080p
low	1071 FPS	1106 FPS
medium	966 FPS	991 FPS
high	843 FPS	867 FPS
ultra	759 FPS	781 FPS
1440p
low	840 FPS	860 FPS
medium	746 FPS	759 FPS
high	651 FPS	664 FPS
ultra	564 FPS	576 FPS
4K
low	618 FPS	632 FPS
medium	553 FPS	562 FPS
high	487 FPS	496 FPS
ultra	420 FPS	429 FPS

Open Ryzen 9 9955HX Open Ryzen Threadripper PRO 9945WX

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 9955HX and Ryzen Threadripper PRO 9945WX

Ryzen 9 9955HX

The Ryzen 9 9955HX is manufactured by AMD. It was released in 2025-01-01. It is based on the Fire Range-HX (Zen 5) (2025) 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 4 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 55,711 points. Launch price was $650.

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.

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Processing Power

The Ryzen 9 9955HX packs 16 cores / 32 threads, while the Ryzen Threadripper PRO 9945WX offers 12 cores / 24 threads — the Ryzen 9 9955HX has 4 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 9955HX versus 5.4 GHz on the Ryzen Threadripper PRO 9945WX — identical boost frequencies (base: 2.5 GHz vs 4.7 GHz). The Ryzen 9 9955HX uses the Fire Range-HX (Zen 5) (2025) architecture (4 nm), while the Ryzen Threadripper PRO 9945WX uses Shimada Peak (2025) (4 nm). In PassMark, the Ryzen 9 9955HX scores 55,711 against the Ryzen Threadripper PRO 9945WX's 56,854 — a 2% lead for the Ryzen Threadripper PRO 9945WX. Both processors carry 64 MB (total) of L3 cache.

Feature	Ryzen 9 9955HX	Ryzen Threadripper PRO 9945WX
Cores / Threads	16 / 32+33%	12 / 24
Boost Clock	5.4 GHz	5.4 GHz
Base Clock	2.5 GHz	4.7 GHz+88%
L3 Cache	64 MB (total)	64 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	4 nm	4 nm
Architecture	Fire Range-HX (Zen 5) (2025)	Shimada Peak (2025)
PassMark	55,711	56,854+2%
Cinebench R23 Multi	38,010	—
Geekbench 6 Single	3,219	—
Geekbench 6 Multi	19,563	—

🧠

Memory & Platform

The Ryzen 9 9955HX uses the FL1 socket (PCIe 5.0), while the Ryzen Threadripper PRO 9945WX uses sTR5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-5600 on the Ryzen 9 9955HX versus 6400 on the Ryzen Threadripper PRO 9945WX — the Ryzen Threadripper PRO 9945WX supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen Threadripper PRO 9945WX supports up to 2048 of RAM compared to 96 GB — 182.1% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 9955HX) vs 8 (Ryzen Threadripper PRO 9945WX). PCIe lanes: 28 (Ryzen 9 9955HX) vs 128 (Ryzen Threadripper PRO 9945WX) — the Ryzen Threadripper PRO 9945WX offers 100 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD FL1 (Ryzen 9 9955HX) and WRX90,TRX50 (Ryzen Threadripper PRO 9945WX).

Feature	Ryzen 9 9955HX	Ryzen Threadripper PRO 9945WX
Socket	FL1	sTR5
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-5600	6400+127900%
Max RAM Capacity	96 GB+4915100%	2048
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	28	128+357%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: true (Ryzen 9 9955HX) vs VT-x, VT-d, AMD-V (Ryzen Threadripper PRO 9945WX). The Ryzen 9 9955HX includes integrated graphics (Radeon 610M), while the Ryzen Threadripper PRO 9945WX requires a dedicated GPU. Direct competitor: Ryzen 9 9955HX rivals Core Ultra 9 275HX; Ryzen Threadripper PRO 9945WX rivals Xeon w7-3545.