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

✅Costs $2,200 less on MSRP ($549 MSRP vs $2,749 MSRP).
✅Delivers 187.9% more PassMark for each dollar spent, at 71.0 vs 24.6 PassMark/$ ($549 MSRP vs $2,749 MSRP).
✅Draws 105W instead of 325W, a 220W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w7-3555 across 4 shared CPU benchmark tests.
❌Lower Geekbench multi-core (11,888 vs 17,120).
❌Less compelling for workstation-style loads than Xeon w7-3555, which brings 28 cores / 56 threads and 112 PCIe lanes.
❌Older platform position on AM4 with DDR4, while Xeon w7-3555 moves to LGA4677 and DDR5.

Xeon w7-3555

2024

Why buy it

✅Better for gaming: +17.9% higher average FPS across 4 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 112 PCIe lanes vs 24.
✅Newer platform on LGA4677 with DDR5 support instead of AM4 and DDR4.
✅366.7% more PCIe lanes (112 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Lower PassMark per dollar, at 24.6 vs 71.0 PassMark/$ ($2,749 MSRP vs $549 MSRP).
❌209.5% higher power demand at 325W vs 105W.

Ryzen 9 5900X

2020

Xeon w7-3555

2024

Why buy it

✅Costs $2,200 less on MSRP ($549 MSRP vs $2,749 MSRP).
✅Delivers 187.9% more PassMark for each dollar spent, at 71.0 vs 24.6 PassMark/$ ($549 MSRP vs $2,749 MSRP).
✅Draws 105W instead of 325W, a 220W reduction.

Why buy it

✅Better for gaming: +17.9% higher average FPS across 4 shared CPU benchmark tests.
✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 112 PCIe lanes vs 24.
✅Newer platform on LGA4677 with DDR5 support instead of AM4 and DDR4.
✅366.7% more PCIe lanes (112 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w7-3555 across 4 shared CPU benchmark tests.
❌Lower Geekbench multi-core (11,888 vs 17,120).
❌Less compelling for workstation-style loads than Xeon w7-3555, which brings 28 cores / 56 threads and 112 PCIe lanes.
❌Older platform position on AM4 with DDR4, while Xeon w7-3555 moves to LGA4677 and DDR5.

Trade-offs

❌Lower PassMark per dollar, at 24.6 vs 71.0 PassMark/$ ($2,749 MSRP vs $549 MSRP).
❌209.5% higher power demand at 325W vs 105W.

Quick Answers

So, is Xeon w7-3555 better than Ryzen 9 5900X?

Not in a simple one-size-fits-all way. Xeon w7-3555 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 gaming?

If gaming is the priority, Xeon w7-3555 is the better pick here. According to our tests, it delivers 17.9% 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, Xeon w7-3555 is the better fit. You are getting 44% better Geekbench multi-core, backed by 28 cores and 56 threads.

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

Xeon w7-3555 is still the faster CPU overall, but Ryzen 9 5900X makes more sense if price matters more than absolute performance. Xeon w7-3555 is 400.7% more expensive on MSRP at $2,749 MSRP versus $549 MSRP, and it gives you a 17.9% average FPS lead across 4 shared CPU game tests in our data. Ryzen 9 5900X is also 187.9% better value on MSRP (71.0 vs 24.6 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Xeon w7-3555 is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2020), a healthier platform with LGA4677 and DDR5 instead of AM4, more multi-core headroom with 28 cores / 56 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 w7-3555 Benchmark Check

Path of Exile 2

Preset	Ryzen 9 5900X	Xeon w7-3555
1080p
low	323 FPS	311 FPS
medium	291 FPS	301 FPS
high	243 FPS	242 FPS
ultra	193 FPS	204 FPS
1440p
low	307 FPS	270 FPS
medium	248 FPS	233 FPS
high	192 FPS	175 FPS
ultra	157 FPS	154 FPS
4K
low	193 FPS	184 FPS
medium	156 FPS	157 FPS
high	115 FPS	118 FPS
ultra	103 FPS	106 FPS

Open Ryzen 9 5900X Open Xeon w7-3555

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 5900X	Xeon w7-3555
1080p
low	772 FPS	682 FPS
medium	647 FPS	593 FPS
high	508 FPS	482 FPS
ultra	450 FPS	427 FPS
1440p
low	619 FPS	551 FPS
medium	536 FPS	489 FPS
high	443 FPS	415 FPS
ultra	364 FPS	341 FPS
4K
low	365 FPS	324 FPS
medium	318 FPS	288 FPS
high	289 FPS	267 FPS
ultra	255 FPS	234 FPS

Open Ryzen 9 5900X Open Xeon w7-3555

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 5900X	Xeon w7-3555
1080p
low	832 FPS	1025 FPS
medium	645 FPS	1057 FPS
high	558 FPS	974 FPS
ultra	459 FPS	834 FPS
1440p
low	721 FPS	1001 FPS
medium	565 FPS	888 FPS
high	488 FPS	802 FPS
ultra	407 FPS	656 FPS
4K
low	511 FPS	600 FPS
medium	421 FPS	517 FPS
high	374 FPS	461 FPS
ultra	308 FPS	397 FPS

Open Ryzen 9 5900X Open Xeon w7-3555

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 5900X	Xeon w7-3555
1080p
low	974 FPS	1212 FPS
medium	974 FPS	1015 FPS
high	934 FPS	925 FPS
ultra	826 FPS	809 FPS
1440p
low	959 FPS	980 FPS
medium	843 FPS	845 FPS
high	726 FPS	736 FPS
ultra	617 FPS	635 FPS
4K
low	694 FPS	727 FPS
medium	621 FPS	632 FPS
high	541 FPS	557 FPS
ultra	437 FPS	437 FPS

Open Ryzen 9 5900X Open Xeon w7-3555

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 5900X and Xeon w7-3555

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 w7-3555

The Xeon w7-3555 is manufactured by Intel. It was released in 24 August 2024 (1 year ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 28 cores and 56 threads. Base frequency is 2.7 GHz, with boost up to 4.8 GHz. L3 cache: 75 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 325 Watt. Memory support: DDR5-4800. Passmark benchmark score: 67,754 points. Launch price was $2,339.

⚡

Processing Power

The Ryzen 9 5900X packs 12 cores / 24 threads, while the Xeon w7-3555 offers 28 cores / 56 threads — the Xeon w7-3555 has 16 more cores. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 4.8 GHz on the Xeon w7-3555 — identical boost frequencies (base: 3.7 GHz vs 2.7 GHz). The Ryzen 9 5900X uses the Vermeer (Zen3) (2020−2022) architecture (7 nm, 12 nm), while the Xeon w7-3555 uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Xeon w7-3555's 67,754 — a 54% lead for the Xeon w7-3555. Geekbench 6 single-core — the metric most relevant to gaming — records 2,174 vs 2,300, a 5.6% lead for the Xeon w7-3555 that directly translates to higher frame rates. Multi-core Geekbench: 11,888 vs 17,120 (36.1% advantage for the Xeon w7-3555). L3 cache: 64 MB on the Ryzen 9 5900X vs 75 MB on the Xeon w7-3555.

Feature	Ryzen 9 5900X	Xeon w7-3555
Cores / Threads	12 / 24	28 / 56+133%
Boost Clock	4.8 GHz	4.8 GHz
Base Clock	3.7 GHz+37%	2.7 GHz
L3 Cache	64 MB	75 MB+17%
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	67,754+74%
Cinebench R23 Multi	21,000	—
Geekbench 6 Single	2,174	2,300+6%
Geekbench 6 Multi	11,888	17,120+44%

🧠

Memory & Platform

The Ryzen 9 5900X uses the AM4 socket (PCIe 4.0), while the Xeon w7-3555 uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 5900X versus DDR5-4800 on the Xeon w7-3555 — the Xeon w7-3555 supports 22.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon w7-3555 supports up to 4096 GB of RAM compared to 128 GB — 187.9% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 5900X) vs 8 (Xeon w7-3555). PCIe lanes: 24 (Ryzen 9 5900X) vs 112 (Xeon w7-3555) — the Xeon w7-3555 offers 88 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X) and W790 (Xeon w7-3555).

Feature	Ryzen 9 5900X	Xeon w7-3555
Socket	AM4	LGA4677
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	DDR4-3200	DDR5-4800+25%
Max RAM Capacity	128 GB	4096 GB+3100%
RAM Channels	2	8+300%
ECC Support	Yes	Yes
PCIe Lanes	24	112+367%

🔧

Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the Xeon w7-3555 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 5900X) vs true (Xeon w7-3555). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K; Xeon w7-3555 rivals Threadripper PRO 7965WX.

Feature	Ryzen 9 5900X	Xeon w7-3555
Integrated GPU	No	No
IGPU Model	—	None
Unlocked	Yes	Yes
AVX-512	No	Yes
Virtualization	AMD-V	true
Target Use	Workstation	—

💰

Value Analysis

The Ryzen 9 5900X launched at $549 MSRP, while the Xeon w7-3555 debuted at $2749. On MSRP ($549 vs $2749), the Ryzen 9 5900X is $2200 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 5900X delivers 71.0 pts/$ vs 24.6 pts/$ for the Xeon w7-3555 — making the Ryzen 9 5900X the 96.9% better value option.