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: +46.7% higher average FPS across 50 shared CPU benchmark tests.
✅+111.6% larger total L3 cache (64 MB vs 30 MB).
✅Draws 105W instead of 140W, a 35W reduction.

Trade-offs

❌Less compelling for workstation-style loads than Xeon Gold 6238, which brings 22 cores / 44 threads and 48 PCIe lanes.
❌Launch MSRP is still $549 MSRP, while Xeon Gold 6238 mostly shows up through inconsistent older-market listings.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon Gold 6238

2019

Why buy it

✅Better for workstations and heavier parallel workloads: 22 cores / 44 threads, plus 48 PCIe lanes vs 24.
✅100% more PCIe lanes (48 vs 24) for storage and expansion-heavy builds.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 5900X across 50 shared CPU benchmark tests.
❌Lower PassMark (29,118 vs 38,955).
❌Smaller total L3 cache (30 MB vs 64 MB).
❌33.3% higher power demand at 140W vs 105W.

Ryzen 9 5900X

2020

Xeon Gold 6238

2019

Why buy it

✅Better for gaming: +46.7% higher average FPS across 50 shared CPU benchmark tests.
✅+111.6% larger total L3 cache (64 MB vs 30 MB).
✅Draws 105W instead of 140W, a 35W reduction.

Why buy it

✅Better for workstations and heavier parallel workloads: 22 cores / 44 threads, plus 48 PCIe lanes vs 24.
✅100% more PCIe lanes (48 vs 24) for storage and expansion-heavy builds.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Less compelling for workstation-style loads than Xeon Gold 6238, which brings 22 cores / 44 threads and 48 PCIe lanes.
❌Launch MSRP is still $549 MSRP, while Xeon Gold 6238 mostly shows up through inconsistent older-market listings.
❌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 50 shared CPU benchmark tests.
❌Lower PassMark (29,118 vs 38,955).
❌Smaller total L3 cache (30 MB vs 64 MB).
❌33.3% higher power demand at 140W vs 105W.

Quick Answers

So, is Ryzen 9 5900X better than Xeon Gold 6238?

Not in a simple one-size-fits-all way. Xeon Gold 6238 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 46.7% 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 33.8% better PassMark, backed by 12 cores and 24 threads. It also carries the larger cache pool with 111.6% larger total L3 cache (64 MB vs 30 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 at an unclear MSRP at $549 MSRP versus unclear MSRP, and it gives you a 46.7% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (71.0 vs 0.0 PassMark/$), 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), 111.6% larger total L3 cache (64 MB vs 30 MB), and more multi-core headroom with 12 cores / 24 threads instead of 22/44. 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 Gold 6238 Benchmark Check

Path of Exile 2

Preset	Ryzen 9 5900X	Xeon Gold 6238
1080p
low	323 FPS	187 FPS
medium	291 FPS	152 FPS
high	243 FPS	124 FPS
ultra	193 FPS	96 FPS
1440p
low	307 FPS	146 FPS
medium	248 FPS	115 FPS
high	192 FPS	92 FPS
ultra	157 FPS	72 FPS
4K
low	193 FPS	68 FPS
medium	156 FPS	57 FPS
high	115 FPS	45 FPS
ultra	103 FPS	36 FPS

Open Ryzen 9 5900X Open Xeon Gold 6238

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Ryzen 9 5900X	Xeon Gold 6238
1080p
low	772 FPS	214 FPS
medium	647 FPS	189 FPS
high	508 FPS	162 FPS
ultra	450 FPS	137 FPS
1440p
low	619 FPS	185 FPS
medium	536 FPS	168 FPS
high	443 FPS	144 FPS
ultra	364 FPS	121 FPS
4K
low	365 FPS	121 FPS
medium	318 FPS	110 FPS
high	289 FPS	100 FPS
ultra	255 FPS	83 FPS

Open Ryzen 9 5900X Open Xeon Gold 6238

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Ryzen 9 5900X	Xeon Gold 6238
1080p
low	832 FPS	700 FPS
medium	645 FPS	563 FPS
high	558 FPS	510 FPS
ultra	459 FPS	440 FPS
1440p
low	721 FPS	560 FPS
medium	565 FPS	456 FPS
high	488 FPS	413 FPS
ultra	407 FPS	356 FPS
4K
low	511 FPS	407 FPS
medium	421 FPS	317 FPS
high	374 FPS	282 FPS
ultra	308 FPS	226 FPS

Open Ryzen 9 5900X Open Xeon Gold 6238

League of Legends

League of Legends

Valorant

Preset	Ryzen 9 5900X	Xeon Gold 6238
1080p
low	974 FPS	728 FPS
medium	974 FPS	728 FPS
high	934 FPS	699 FPS
ultra	826 FPS	610 FPS
1440p
low	959 FPS	728 FPS
medium	843 FPS	639 FPS
high	726 FPS	550 FPS
ultra	617 FPS	468 FPS
4K
low	694 FPS	501 FPS
medium	621 FPS	449 FPS
high	541 FPS	400 FPS
ultra	437 FPS	345 FPS

Open Ryzen 9 5900X Open Xeon Gold 6238

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Ryzen 9 5900X and Xeon Gold 6238

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 6238

The Xeon Gold 6238 is manufactured by Intel. It was released in 2 April 2019 (6 years ago). It is based on the Cascade Lake (2019−2020) architecture. It features 22 cores and 44 threads. Base frequency is 2.1 GHz, with boost up to 3.7 GHz. L3 cache: 30.25 MB. L2 cache: 22 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 140 Watt. Memory support: DDR4-2933. Passmark benchmark score: 29,118 points. Launch price was $2,612.

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Processing Power

The Ryzen 9 5900X packs 12 cores / 24 threads, while the Xeon Gold 6238 offers 22 cores / 44 threads — the Xeon Gold 6238 has 10 more cores. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 3.7 GHz on the Xeon Gold 6238 — a 25.9% 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 6238 uses Cascade Lake (2019−2020) (14 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Xeon Gold 6238's 29,118 — a 28.9% lead for the Ryzen 9 5900X. L3 cache: 64 MB on the Ryzen 9 5900X vs 30.25 MB on the Xeon Gold 6238.

Feature	Ryzen 9 5900X	Xeon Gold 6238
Cores / Threads	12 / 24	22 / 44+83%
Boost Clock	4.8 GHz+30%	3.7 GHz
Base Clock	3.7 GHz+76%	2.1 GHz
L3 Cache	64 MB+112%	30.25 MB
L2 Cache	512K (per core)	22 MB+4300%
Process	7 nm, 12 nm-50%	14 nm
Architecture	Vermeer (Zen3) (2020−2022)	Cascade Lake (2019−2020)
PassMark	38,955+34%	29,118
Cinebench R23 Multi	21,000	—
Geekbench 6 Single	2,174	—
Geekbench 6 Multi	11,888	—

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Memory & Platform

The Ryzen 9 5900X uses the AM4 socket (PCIe 4.0), while the Xeon Gold 6238 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 5900X versus 2933 on the Xeon Gold 6238 — the Xeon Gold 6238 supports 199.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6238 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 Gold 6238). PCIe lanes: 24 (Ryzen 9 5900X) vs 48 (Xeon Gold 6238) — the Xeon Gold 6238 offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X) and C621 (Xeon Gold 6238).

Feature	Ryzen 9 5900X	Xeon Gold 6238
Socket	AM4	LGA3647
PCIe Generation	PCIe 4.0+33%	PCIe 3.0
Max RAM Speed	DDR4-3200	2933+73225%
Max RAM Capacity	128 GB+13107100%	1024
RAM Channels	2	6+200%
ECC Support	Yes	Yes
PCIe Lanes	24	48+100%

🔧

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 6238 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 6238). Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K; Xeon Gold 6238 rivals EPYC 7402.