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 5900X

2020

Why buy it

✅Better for gaming: +13.1% higher average FPS across 49 shared CPU benchmark tests.
✅Costs $3,034 less on MSRP ($549 MSRP vs $3,583 MSRP).
✅Delivers 320.6% more PassMark for each dollar spent, at 71.0 vs 16.9 PassMark/$ ($549 MSRP vs $3,583 MSRP).
✅Draws 105W instead of 225W, a 120W reduction.

Trade-offs

❌Lower PassMark (38,955 vs 60,449).
❌Less compelling for workstation-style loads than Xeon Gold 6448Y, which brings 32 cores / 64 threads and 80 PCIe lanes.
❌Older platform position on AM4 with DDR4, while Xeon Gold 6448Y moves to LGA4677 and DDR5.

Xeon Gold 6448Y

2023

Why buy it

✅+55.2% higher PassMark.
✅Better for workstations and heavier parallel workloads: 32 cores / 64 threads, plus 80 PCIe lanes vs 24.
✅Newer platform on LGA4677 with DDR5 support instead of AM4 and DDR4.
✅233.3% more PCIe lanes (80 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 49 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 16.9 vs 71.0 PassMark/$ ($3,583 MSRP vs $549 MSRP).
❌114.3% higher power demand at 225W vs 105W.

Ryzen 9 5900X

2020

Xeon Gold 6448Y

2023

Why buy it

✅Better for gaming: +13.1% higher average FPS across 49 shared CPU benchmark tests.
✅Costs $3,034 less on MSRP ($549 MSRP vs $3,583 MSRP).
✅Delivers 320.6% more PassMark for each dollar spent, at 71.0 vs 16.9 PassMark/$ ($549 MSRP vs $3,583 MSRP).
✅Draws 105W instead of 225W, a 120W reduction.

Why buy it

✅+55.2% higher PassMark.
✅Better for workstations and heavier parallel workloads: 32 cores / 64 threads, plus 80 PCIe lanes vs 24.
✅Newer platform on LGA4677 with DDR5 support instead of AM4 and DDR4.
✅233.3% more PCIe lanes (80 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (38,955 vs 60,449).
❌Less compelling for workstation-style loads than Xeon Gold 6448Y, which brings 32 cores / 64 threads and 80 PCIe lanes.
❌Older platform position on AM4 with DDR4, while Xeon Gold 6448Y moves to LGA4677 and DDR5.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 49 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 16.9 vs 71.0 PassMark/$ ($3,583 MSRP vs $549 MSRP).
❌114.3% higher power demand at 225W vs 105W.

Quick Answers

So, is Ryzen 9 5900X better than Xeon Gold 6448Y?

Not in a simple one-size-fits-all way. Xeon Gold 6448Y makes more sense for workstation-style multi-core throughput, while Ryzen 9 5900X is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

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

For streaming, content creation, and heavier multitasking, Xeon Gold 6448Y is the better fit. You are getting 55.2% better PassMark, backed by 32 cores and 64 threads.

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

Ryzen 9 5900X is the smarter buy today. Ryzen 9 5900X is $3,034 cheaper on MSRP at $549 MSRP versus $3,583 MSRP, and it gives you a 13.1% average FPS lead across 49 shared CPU game tests in our data. The trade-off is that Xeon Gold 6448Y is still stronger for heavier multi-core work with 55.2% better PassMark. It is also 320.6% better value on MSRP (71.0 vs 16.9 PassMark/$), 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?

Xeon Gold 6448Y is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020), a healthier platform with LGA4677 and DDR5 instead of AM4, more multi-core headroom with 32 cores / 64 threads instead of 12/24, and AVX-512 support for heavier modern compute workloads. That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

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 5900X Benchmark Check

Xeon Gold 6448Y Benchmark Check

Path of Exile 2

Preset	Ryzen 9 5900X	Xeon Gold 6448Y
1080p
low	323 FPS	200 FPS
medium	291 FPS	165 FPS
high	243 FPS	137 FPS
ultra	193 FPS	107 FPS
1440p
low	307 FPS	159 FPS
medium	248 FPS	124 FPS
high	192 FPS	98 FPS
ultra	157 FPS	77 FPS
4K
low	193 FPS	73 FPS
medium	156 FPS	61 FPS
high	115 FPS	48 FPS
ultra	103 FPS	39 FPS

Open Ryzen 9 5900X Open Xeon Gold 6448Y

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 5900X	Xeon Gold 6448Y
1080p
low	772 FPS	303 FPS
medium	647 FPS	269 FPS
high	508 FPS	224 FPS
ultra	450 FPS	199 FPS
1440p
low	619 FPS	261 FPS
medium	536 FPS	234 FPS
high	443 FPS	201 FPS
ultra	364 FPS	168 FPS
4K
low	365 FPS	163 FPS
medium	318 FPS	149 FPS
high	289 FPS	138 FPS
ultra	255 FPS	124 FPS

Open Ryzen 9 5900X Open Xeon Gold 6448Y

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 5900X	Xeon Gold 6448Y
1080p
low	832 FPS	1025 FPS
medium	645 FPS	1006 FPS
high	558 FPS	929 FPS
ultra	459 FPS	843 FPS
1440p
low	721 FPS	878 FPS
medium	565 FPS	780 FPS
high	488 FPS	710 FPS
ultra	407 FPS	638 FPS
4K
low	511 FPS	550 FPS
medium	421 FPS	453 FPS
high	374 FPS	392 FPS
ultra	308 FPS	321 FPS

Open Ryzen 9 5900X Open Xeon Gold 6448Y

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 5900X	Xeon Gold 6448Y
1080p
low	974 FPS	972 FPS
medium	974 FPS	875 FPS
high	934 FPS	756 FPS
ultra	826 FPS	649 FPS
1440p
low	959 FPS	754 FPS
medium	843 FPS	661 FPS
high	726 FPS	568 FPS
ultra	617 FPS	488 FPS
4K
low	694 FPS	549 FPS
medium	621 FPS	489 FPS
high	541 FPS	430 FPS
ultra	437 FPS	367 FPS

Open Ryzen 9 5900X Open Xeon Gold 6448Y

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 5900X and Xeon Gold 6448Y

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) (2020−2022) 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.

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 5900X packs 12 cores / 24 threads, while the Xeon Gold 6448Y offers 32 cores / 64 threads — the Xeon Gold 6448Y has 20 more cores. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 4.1 GHz on the Xeon Gold 6448Y — a 15.7% clock advantage for the Ryzen 9 5900X (base: 3.7 GHz vs 2.1 GHz). The Ryzen 9 5900X uses the Vermeer (Zen3) (2020−2022) architecture (7 nm, 12 nm), while the Xeon Gold 6448Y uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Xeon Gold 6448Y's 60,449 — a 43.2% lead for the Xeon Gold 6448Y. L3 cache: 64 MB on the Ryzen 9 5900X vs 60 MB on the Xeon Gold 6448Y.

Feature	Ryzen 9 5900X	Xeon Gold 6448Y
Cores / Threads	12 / 24	32 / 64+167%
Boost Clock	4.8 GHz+17%	4.1 GHz
Base Clock	3.7 GHz+76%	2.1 GHz
L3 Cache	64 MB+7%	60 MB
L2 Cache	512K (per core)	2 MB (per core)+300%
Process	7 nm, 12 nm	Intel 7 nm
Architecture	Vermeer (Zen3) (2020−2022)	Sapphire Rapids (2023−2024)
PassMark	38,955	60,449+55%
Cinebench R23 Multi	21,000	—
Geekbench 6 Single	2,174	—
Geekbench 6 Multi	11,888	—

🧠

Memory & Platform

The Ryzen 9 5900X uses the AM4 socket (PCIe 4.0), while the Xeon Gold 6448Y uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 5900X versus 4800 on the Xeon Gold 6448Y — the Xeon Gold 6448Y supports 199.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6448Y supports up to 4096 of RAM compared to 128 GB — 187.9% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 5900X) vs 8 (Xeon Gold 6448Y). PCIe lanes: 24 (Ryzen 9 5900X) vs 80 (Xeon Gold 6448Y) — the Xeon Gold 6448Y offers 56 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X) and C741 (Xeon Gold 6448Y).

Feature	Ryzen 9 5900X	Xeon Gold 6448Y
Socket	AM4	LGA4677
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	DDR4-3200	4800+119900%
Max RAM Capacity	128 GB+3276700%	4096
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	24	80+233%

🔧

Advanced Features

Only the Ryzen 9 5900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon Gold 6448Y supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 5900X) vs VT-x, VT-d (Xeon Gold 6448Y). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K; Xeon Gold 6448Y rivals EPYC 9354.

Feature	Ryzen 9 5900X	Xeon Gold 6448Y
Integrated GPU	No	No
IGPU Model	—	None
Unlocked	Yes	No
AVX-512	No	Yes
Virtualization	AMD-V	VT-x, VT-d
Target Use	Workstation	—

💰

Value Analysis

The Ryzen 9 5900X launched at $549 MSRP, while the Xeon Gold 6448Y debuted at $3583. On MSRP ($549 vs $3583), the Ryzen 9 5900X is $3034 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 5900X delivers 71.0 pts/$ vs 16.9 pts/$ for the Xeon Gold 6448Y — making the Ryzen 9 5900X the 123.2% better value option.