Ryzen 9 9955HX3D vs Xeon Gold 6448Y

CPU

GPU

Ryzen 9 9955HX3D

16 Cores32 Thrd55 WWMax: 5.4 GHz2025

Ryzen family

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Xeon Gold 6448Y

32 Cores64 Thrd225 WWMax: 4.1 GHz2023

Similar parts

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Ryzen 9 9955HX3D vs Xeon Gold 6448Y Performance Spectrum

Ryzen 9 9955HX3D

16 / 32

61,578

+1.9%

Ryzen 7 7700

Ryzen Threadripper PRO 5945WX

Ryzen 9 PRO 7945

Ryzen Threadripper 3960X

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

Ryzen Threadripper PRO 7985WX

Xeon Gold 6448Y

32 / 64

60,449

0.0%

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 9 9955HX3D vs Xeon Gold 6448Y 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 9955HX3D vs Xeon Gold 6448Y: 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 9955HX3D

2025

Why buy it

✅Better for gaming: +6.4% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $2,834 less on MSRP ($749 MSRP vs $3,583 MSRP).
✅Delivers 387.3% more PassMark for each dollar spent, at 82.2 vs 16.9 PassMark/$ ($749 MSRP vs $3,583 MSRP).
✅Draws 55W instead of 225W, a 170W reduction.
✅Integrated graphics onboard with AMD Radeon 610M, while Xeon Gold 6448Y needs a discrete GPU.

Trade-offs

❌Less compelling for workstation-style loads than Xeon Gold 6448Y, which brings 32 cores / 64 threads and 80 PCIe lanes.

Xeon Gold 6448Y

2023

Why buy it

✅Better for workstations and heavier parallel workloads: 32 cores / 64 threads, plus 80 PCIe lanes vs 28.
✅185.7% more PCIe lanes (80 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 9955HX3D across 50 shared CPU benchmark tests.
❌Lower PassMark (60,449 vs 61,578).
❌Lower PassMark per dollar, at 16.9 vs 82.2 PassMark/$ ($3,583 MSRP vs $749 MSRP).
❌309.1% higher power demand at 225W vs 55W.
❌No integrated graphics, while Ryzen 9 9955HX3D can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Ryzen 9 9955HX3D better than Xeon Gold 6448Y?

Not really, because they are built for different jobs. Xeon Gold 6448Y makes more sense for workstation-style multi-core throughput, while Ryzen 9 9955HX3D 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 9 9955HX3D is the better pick. According to our tests, it delivers 6.4% more average FPS across 50 shared CPU game tests. It also has a clear cache advantage at 128 MB versus 60 MB.

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

For streaming, content creation, and heavier multitasking, Ryzen 9 9955HX3D is the stronger fit. You are getting 1.9% better PassMark, backed by 16 cores and 32 threads. It also has the larger cache pool with 113.3% larger total L3 cache (128 MB vs 60 MB).

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

Ryzen 9 9955HX3D is the better buy right now. Ryzen 9 9955HX3D comes in $2,834 cheaper on MSRP at $749 MSRP versus $3,583 MSRP, and it still gives you a 6.4% average FPS lead across 50 shared CPU game tests in our data. It is also 387.3% better value on MSRP (82.2 vs 16.9 PassMark/$), 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 9 9955HX3D makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2023), 3D V-Cache and a much larger 128 MB L3 cache instead of 60 MB, and more multi-core headroom with 16 cores / 32 threads instead of 32/64. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 9 9955HX3D vs Xeon Gold 6448Y Technical Specifications

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

Ryzen 9 9955HX3D

The Ryzen 9 9955HX3D 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: 128 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: 61,578 points. Launch price was $700.

Xeon Gold 6448Y

The Xeon Gold 6448Y is manufactured by Intel. It was released in 10 January 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 32 cores and 64 threads. Base frequency is 2.1 GHz, with boost up to 4.1 GHz. L3 cache: 60 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 225 Watt. Memory support: DDR5-4800, DDR5-4400. Passmark benchmark score: 60,449 points. Launch price was $3,583.

⚡

Processing Power

The Ryzen 9 9955HX3D packs 16 cores / 32 threads, while the Xeon Gold 6448Y offers 32 cores / 64 threads — the Xeon Gold 6448Y has 16 more cores. Boost clocks reach 5.4 GHz on the Ryzen 9 9955HX3D versus 4.1 GHz on the Xeon Gold 6448Y — a 27.4% clock advantage for the Ryzen 9 9955HX3D (base: 2.5 GHz vs 2.1 GHz). The Ryzen 9 9955HX3D uses the Fire Range-HX (Zen 5) (2025) architecture (4 nm), while the Xeon Gold 6448Y uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the Ryzen 9 9955HX3D scores 61,578 against the Xeon Gold 6448Y's 60,449 — a 1.9% lead for the Ryzen 9 9955HX3D. L3 cache: 128 MB (total) on the Ryzen 9 9955HX3D vs 60 MB on the Xeon Gold 6448Y.

Feature	Ryzen 9 9955HX3D	Xeon Gold 6448Y
Cores / Threads	16 / 32	32 / 64+100%
Boost Clock	5.4 GHz+32%	4.1 GHz
Base Clock	2.5 GHz+19%	2.1 GHz
L3 Cache	128 MB (total)+113%	60 MB
L2 Cache	1 MB (per core)	2 MB (per core)+100%
Process	4 nm-43%	Intel 7 nm
Architecture	Fire Range-HX (Zen 5) (2025)	Sapphire Rapids (2023−2024)
PassMark	61,578+2%	60,449

🧠

Memory & Platform

The Ryzen 9 9955HX3D uses the FL1 socket (PCIe 5.0), while the Xeon Gold 6448Y uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 5600 on the Ryzen 9 9955HX3D versus 4800 on the Xeon Gold 6448Y — the Ryzen 9 9955HX3D supports 16.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6448Y supports up to 4096 of RAM compared to 96 — 4166.7% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 9955HX3D) vs 8 (Xeon Gold 6448Y). PCIe lanes: 28 (Ryzen 9 9955HX3D) vs 80 (Xeon Gold 6448Y) — the Xeon Gold 6448Y offers 52 more lanes for additional GPUs or NVMe drives. Chipset compatibility: FL1 (Ryzen 9 9955HX3D) and C741 (Xeon Gold 6448Y).

Feature	Ryzen 9 9955HX3D	Xeon Gold 6448Y
Socket	FL1	LGA4677
PCIe Generation	PCIe 5.0	PCIe 5.0
Max RAM Speed	5600+17%	4800
Max RAM Capacity	96	4096+4167%
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	28	80+186%

🔧

Advanced Features

Only the Ryzen 9 9955HX3D 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 9 9955HX3D) vs VT-x, VT-d (Xeon Gold 6448Y). The Ryzen 9 9955HX3D includes integrated graphics (AMD Radeon 610M), while the Xeon Gold 6448Y requires a dedicated GPU. Direct competitor: Ryzen 9 9955HX3D rivals Core Ultra 9 185H; Xeon Gold 6448Y rivals EPYC 9354.

Feature	Ryzen 9 9955HX3D	Xeon Gold 6448Y
Integrated GPU	Yes	No
IGPU Model	AMD Radeon 610M	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 9 9955HX3D was priced at $749, while the Xeon Gold 6448Y came in at $3583. On launch pricing ($749 vs $3583), Ryzen 9 9955HX3D was $2834 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 9955HX3D delivers 82.2 pts/$ vs 16.9 pts/$ for the Xeon Gold 6448Y — making the Ryzen 9 9955HX3D the 131.9% better value option.

Feature	Ryzen 9 9955HX3D	Xeon Gold 6448Y
MSRP	$749-79%	$3583
Performance per Dollar	82.2+386%	16.9
Release Date	2025	2023

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