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: +18.9% higher average FPS across 50 shared CPU benchmark tests.
✅+66.2% larger total L3 cache (64 MB vs 39 MB).
✅Costs $9,460 less on MSRP ($549 MSRP vs $10,009 MSRP).
✅Delivers 1756.3% more PassMark for each dollar spent, at 71.0 vs 3.8 PassMark/$ ($549 MSRP vs $10,009 MSRP).
✅Draws 105W instead of 205W, a 100W reduction.

Trade-offs

❌Less compelling for workstation-style loads than Xeon Platinum 8180, which brings 28 cores / 56 threads and 48 PCIe lanes.

Xeon Platinum 8180

2017

Why buy it

✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 48 PCIe lanes vs 24.
✅100% more PCIe lanes (48 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 50 shared CPU benchmark tests.
❌Lower PassMark (38,259 vs 38,955).
❌Smaller total L3 cache (39 MB vs 64 MB).
❌Lower PassMark per dollar, at 3.8 vs 71.0 PassMark/$ ($10,009 MSRP vs $549 MSRP).
❌95.2% higher power demand at 205W vs 105W.

Ryzen 9 5900X

2020

Xeon Platinum 8180

2017

Why buy it

✅Better for gaming: +18.9% higher average FPS across 50 shared CPU benchmark tests.
✅+66.2% larger total L3 cache (64 MB vs 39 MB).
✅Costs $9,460 less on MSRP ($549 MSRP vs $10,009 MSRP).
✅Delivers 1756.3% more PassMark for each dollar spent, at 71.0 vs 3.8 PassMark/$ ($549 MSRP vs $10,009 MSRP).
✅Draws 105W instead of 205W, a 100W reduction.

Why buy it

✅Better for workstations and heavier parallel workloads: 28 cores / 56 threads, plus 48 PCIe lanes vs 24.
✅100% more PCIe lanes (48 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Less compelling for workstation-style loads than Xeon Platinum 8180, which brings 28 cores / 56 threads and 48 PCIe lanes.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 50 shared CPU benchmark tests.
❌Lower PassMark (38,259 vs 38,955).
❌Smaller total L3 cache (39 MB vs 64 MB).
❌Lower PassMark per dollar, at 3.8 vs 71.0 PassMark/$ ($10,009 MSRP vs $549 MSRP).
❌95.2% higher power demand at 205W vs 105W.

Quick Answers

So, is Ryzen 9 5900X better than Xeon Platinum 8180?

Not in a simple one-size-fits-all way. Xeon Platinum 8180 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, Ryzen 9 5900X is the better pick here. According to our tests, it delivers 18.9% more average FPS across 50 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Ryzen 9 5900X is the better fit. You are getting 1.8% better PassMark, backed by 12 cores and 24 threads. It also carries the larger cache pool with 66.2% larger total L3 cache (64 MB vs 39 MB).

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

Ryzen 9 5900X is the smarter buy today. Ryzen 9 5900X is $9,460 cheaper on MSRP at $549 MSRP versus $10,009 MSRP, and it gives you a 18.9% average FPS lead across 50 shared CPU game tests in our data. It is also 1756.3% better value on MSRP (71.0 vs 3.8 PassMark/$), 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 2017), 66.2% larger total L3 cache (64 MB vs 39 MB), and more multi-core headroom with 12 cores / 24 threads instead of 28/56. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

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 Platinum 8180 Benchmark Check

Path of Exile 2

Preset	Ryzen 9 5900X	Xeon Platinum 8180
1080p
low	323 FPS	192 FPS
medium	291 FPS	156 FPS
high	243 FPS	127 FPS
ultra	193 FPS	99 FPS
1440p
low	307 FPS	158 FPS
medium	248 FPS	124 FPS
high	192 FPS	97 FPS
ultra	157 FPS	77 FPS
4K
low	193 FPS	72 FPS
medium	156 FPS	60 FPS
high	115 FPS	47 FPS
ultra	103 FPS	39 FPS

Open Ryzen 9 5900X Open Xeon Platinum 8180

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 5900X	Xeon Platinum 8180
1080p
low	772 FPS	442 FPS
medium	647 FPS	386 FPS
high	508 FPS	315 FPS
ultra	450 FPS	259 FPS
1440p
low	619 FPS	381 FPS
medium	536 FPS	336 FPS
high	443 FPS	277 FPS
ultra	364 FPS	220 FPS
4K
low	365 FPS	238 FPS
medium	318 FPS	211 FPS
high	289 FPS	187 FPS
ultra	255 FPS	154 FPS

Open Ryzen 9 5900X Open Xeon Platinum 8180

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 5900X	Xeon Platinum 8180
1080p
low	832 FPS	956 FPS
medium	645 FPS	897 FPS
high	558 FPS	866 FPS
ultra	459 FPS	781 FPS
1440p
low	721 FPS	722 FPS
medium	565 FPS	626 FPS
high	488 FPS	595 FPS
ultra	407 FPS	532 FPS
4K
low	511 FPS	462 FPS
medium	421 FPS	365 FPS
high	374 FPS	326 FPS
ultra	308 FPS	267 FPS

Open Ryzen 9 5900X Open Xeon Platinum 8180

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 5900X	Xeon Platinum 8180
1080p
low	974 FPS	929 FPS
medium	974 FPS	848 FPS
high	934 FPS	733 FPS
ultra	826 FPS	636 FPS
1440p
low	959 FPS	738 FPS
medium	843 FPS	647 FPS
high	726 FPS	556 FPS
ultra	617 FPS	476 FPS
4K
low	694 FPS	532 FPS
medium	621 FPS	474 FPS
high	541 FPS	417 FPS
ultra	437 FPS	360 FPS

Open Ryzen 9 5900X Open Xeon Platinum 8180

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 5900X and Xeon Platinum 8180

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 Platinum 8180

The Xeon Platinum 8180 is manufactured by Intel. It was released in 11 July 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 28 cores and 56 threads. Base frequency is 2.5 GHz, with boost up to 3.8 GHz. L3 cache: 38.5 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 205 Watt. Memory support: DDR4-2666. Passmark benchmark score: 38,259 points. Launch price was $10,009.

⚡

Processing Power

The Ryzen 9 5900X packs 12 cores / 24 threads, while the Xeon Platinum 8180 offers 28 cores / 56 threads — the Xeon Platinum 8180 has 16 more cores. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 3.8 GHz on the Xeon Platinum 8180 — a 23.3% 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 Platinum 8180 uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Xeon Platinum 8180's 38,259 — a 1.8% lead for the Ryzen 9 5900X. L3 cache: 64 MB on the Ryzen 9 5900X vs 38.5 MB (total) on the Xeon Platinum 8180.

Feature	Ryzen 9 5900X	Xeon Platinum 8180
Cores / Threads	12 / 24	28 / 56+133%
Boost Clock	4.8 GHz+26%	3.8 GHz
Base Clock	3.7 GHz+48%	2.5 GHz
L3 Cache	64 MB+66%	38.5 MB (total)
L2 Cache	512K (per core)	1 MB (per core)+100%
Process	7 nm, 12 nm-50%	14 nm
Architecture	Vermeer (Zen3) (2020−2022)	Skylake (server) (2017−2018)
PassMark	38,955+2%	38,259
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 Platinum 8180 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. The Xeon Platinum 8180 supports up to 768 GB of RAM compared to 128 GB — 142.9% more capacity for professional workloads. Memory channels: 2 (Ryzen 9 5900X) vs 6 (Xeon Platinum 8180). PCIe lanes: 24 (Ryzen 9 5900X) vs 48 (Xeon Platinum 8180) — the Xeon Platinum 8180 offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X) and Intel C621 (Xeon Platinum 8180).

Feature	Ryzen 9 5900X	Xeon Platinum 8180
Socket	AM4	LGA3647
PCIe Generation	PCIe 4.0+33%	PCIe 3.0
Max RAM Speed	DDR4-3200	DDR4-2666
Max RAM Capacity	128 GB	768 GB+500%
RAM Channels	2	6+200%
ECC Support	Yes	Yes
PCIe Lanes	24	48+100%

🔧

Advanced Features

Virtualization: AMD-V (Ryzen 9 5900X) / not specified (Xeon Platinum 8180). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K.

Feature	Ryzen 9 5900X	Xeon Platinum 8180
Integrated GPU	No	No
Unlocked	Yes	—
AVX-512	No	—
Virtualization	AMD-V	—
Target Use	Workstation	—

💰

Value Analysis

The Ryzen 9 5900X launched at $549 MSRP, while the Xeon Platinum 8180 debuted at $10009. On MSRP ($549 vs $10009), the Ryzen 9 5900X is $9460 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 5900X delivers 71.0 pts/$ vs 3.8 pts/$ for the Xeon Platinum 8180 — making the Ryzen 9 5900X the 179.6% better value option.