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: +15.9% higher average FPS across 2 shared CPU benchmark tests.
✅+66.2% larger total L3 cache (64 MB vs 39 MB).
✅Costs $3,900 less on MSRP ($549 MSRP vs $4,449 MSRP).
✅Delivers 665.0% more PassMark for each dollar spent, at 71.0 vs 9.3 PassMark/$ ($549 MSRP vs $4,449 MSRP).
✅Draws 105W instead of 205W, a 100W reduction.

Trade-offs

❌Lower PassMark (38,955 vs 41,267).
❌Less compelling for workstation-style loads than Xeon W-3275, which brings 28 cores / 56 threads and 64 PCIe lanes.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon W-3275

2019

Why buy it

✅+5.9% higher PassMark.
✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 64 PCIe lanes vs 24.
✅166.7% more PCIe lanes (64 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 2 shared CPU benchmark tests.
❌Smaller total L3 cache (39 MB vs 64 MB).
❌Lower PassMark per dollar, at 9.3 vs 71.0 PassMark/$ ($4,449 MSRP vs $549 MSRP).
❌95.2% higher power demand at 205W vs 105W.

Ryzen 9 5900X

2020

Xeon W-3275

2019

Why buy it

✅Better for gaming: +15.9% higher average FPS across 2 shared CPU benchmark tests.
✅+66.2% larger total L3 cache (64 MB vs 39 MB).
✅Costs $3,900 less on MSRP ($549 MSRP vs $4,449 MSRP).
✅Delivers 665.0% more PassMark for each dollar spent, at 71.0 vs 9.3 PassMark/$ ($549 MSRP vs $4,449 MSRP).
✅Draws 105W instead of 205W, a 100W reduction.

Why buy it

✅+5.9% higher PassMark.
✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 64 PCIe lanes vs 24.
✅166.7% more PCIe lanes (64 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark (38,955 vs 41,267).
❌Less compelling for workstation-style loads than Xeon W-3275, which brings 28 cores / 56 threads and 64 PCIe lanes.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 2 shared CPU benchmark tests.
❌Smaller total L3 cache (39 MB vs 64 MB).
❌Lower PassMark per dollar, at 9.3 vs 71.0 PassMark/$ ($4,449 MSRP vs $549 MSRP).
❌95.2% higher power demand at 205W vs 105W.

Quick Answers

So, is Ryzen 9 5900X better than Xeon W-3275?

Not in a simple one-size-fits-all way. Xeon W-3275 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 W-3275 is the better fit. You are getting 5.9% better PassMark, backed by 28 cores and 56 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 $3,900 cheaper on MSRP at $549 MSRP versus $4,449 MSRP, and it gives you a 15.9% average FPS lead across 2 shared CPU game tests in our data. The trade-off is that Xeon W-3275 is still stronger for heavier multi-core work with 5.9% better PassMark. It is also 665.0% better value on MSRP (71.0 vs 9.3 PassMark/$), 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 9 5900X is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2019) and 66.2% larger total L3 cache (64 MB vs 39 MB). That makes it the safer long-term pick.

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 W-3275 Benchmark Check

Path of Exile 2

Preset	Ryzen 9 5900X	Xeon W-3275
1080p
low	323 FPS	198 FPS
medium	291 FPS	162 FPS
high	243 FPS	132 FPS
ultra	193 FPS	106 FPS
1440p
low	307 FPS	159 FPS
medium	248 FPS	125 FPS
high	192 FPS	100 FPS
ultra	157 FPS	83 FPS
4K
low	193 FPS	87 FPS
medium	156 FPS	74 FPS
high	115 FPS	58 FPS
ultra	103 FPS	47 FPS

Open Ryzen 9 5900X Open Xeon W-3275

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 5900X	Xeon W-3275
1080p
low	772 FPS	607 FPS
medium	647 FPS	522 FPS
high	508 FPS	420 FPS
ultra	450 FPS	371 FPS
1440p
low	619 FPS	514 FPS
medium	536 FPS	447 FPS
high	443 FPS	370 FPS
ultra	364 FPS	306 FPS
4K
low	365 FPS	306 FPS
medium	318 FPS	266 FPS
high	289 FPS	243 FPS
ultra	255 FPS	213 FPS

Open Ryzen 9 5900X Open Xeon W-3275

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 5900X	Xeon W-3275
1080p
low	832 FPS	1025 FPS
medium	645 FPS	928 FPS
high	558 FPS	876 FPS
ultra	459 FPS	793 FPS
1440p
low	721 FPS	808 FPS
medium	565 FPS	715 FPS
high	488 FPS	675 FPS
ultra	407 FPS	605 FPS
4K
low	511 FPS	519 FPS
medium	421 FPS	429 FPS
high	374 FPS	387 FPS
ultra	308 FPS	315 FPS

Open Ryzen 9 5900X Open Xeon W-3275

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 5900X	Xeon W-3275
1080p
low	974 FPS	1032 FPS
medium	974 FPS	1014 FPS
high	934 FPS	885 FPS
ultra	826 FPS	773 FPS
1440p
low	959 FPS	932 FPS
medium	843 FPS	804 FPS
high	726 FPS	702 FPS
ultra	617 FPS	603 FPS
4K
low	694 FPS	680 FPS
medium	621 FPS	591 FPS
high	541 FPS	521 FPS
ultra	437 FPS	437 FPS

Open Ryzen 9 5900X Open Xeon W-3275

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 5900X and Xeon W-3275

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 W-3275

The Xeon W-3275 is manufactured by Intel. It was released in 3 June 2019 (6 years ago). It is based on the Cascade Lake (2019−2020) architecture. It features 28 cores and 56 threads. Base frequency is 2.5 GHz, with boost up to 4.6 GHz. L3 cache: 38.5 MB. L2 cache: 28 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 205 Watt. Memory support: DDR4-2933. Passmark benchmark score: 41,267 points. Launch price was $4,449.

⚡

Processing Power

The Ryzen 9 5900X packs 12 cores / 24 threads, while the Xeon W-3275 offers 28 cores / 56 threads — the Xeon W-3275 has 16 more cores. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 4.6 GHz on the Xeon W-3275 — a 4.3% clock advantage for the Ryzen 9 5900X (base: 3.7 GHz vs 2.5 GHz). The Ryzen 9 5900X uses the Vermeer (Zen3) (2020−2022) architecture (7 nm, 12 nm), while the Xeon W-3275 uses Cascade Lake (2019−2020) (14 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Xeon W-3275's 41,267 — a 5.8% lead for the Xeon W-3275. L3 cache: 64 MB on the Ryzen 9 5900X vs 38.5 MB on the Xeon W-3275.

Feature	Ryzen 9 5900X	Xeon W-3275
Cores / Threads	12 / 24	28 / 56+133%
Boost Clock	4.8 GHz+4%	4.6 GHz
Base Clock	3.7 GHz+48%	2.5 GHz
L3 Cache	64 MB+66%	38.5 MB
L2 Cache	512K (per core)	28 MB+5500%
Process	7 nm, 12 nm-50%	14 nm
Architecture	Vermeer (Zen3) (2020−2022)	Cascade Lake (2019−2020)
PassMark	38,955	41,267+6%
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 W-3275 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 5900X versus 3200 on the Xeon W-3275 — the Xeon W-3275 supports 199.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon W-3275 supports up to 1024 of RAM compared to 128 GB — 155.6% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 5900X) vs 6 (Xeon W-3275). PCIe lanes: 24 (Ryzen 9 5900X) vs 64 (Xeon W-3275) — the Xeon W-3275 offers 40 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X) and C621 (Xeon W-3275).

Feature	Ryzen 9 5900X	Xeon W-3275
Socket	AM4	LGA3647
PCIe Generation	PCIe 4.0+33%	PCIe 3.0
Max RAM Speed	DDR4-3200	3200+79900%
Max RAM Capacity	128 GB+13107100%	1024
RAM Channels	2	6+200%
ECC Support	Yes	Yes
PCIe Lanes	24	64+167%

🔧

Advanced Features

Only the Ryzen 9 5900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon W-3275 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 5900X) vs VT-x, VT-d (Xeon W-3275). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K; Xeon W-3275 rivals Threadripper 3970X.

Feature	Ryzen 9 5900X	Xeon W-3275
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 W-3275 debuted at $4449. On MSRP ($549 vs $4449), the Ryzen 9 5900X is $3900 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 5900X delivers 71.0 pts/$ vs 9.3 pts/$ for the Xeon W-3275 — making the Ryzen 9 5900X the 153.8% better value option.