Ryzen 9 3900 vs Xeon 6357P

Ryzen 9 3900 vs Xeon 6357P Performance Spectrum

Ryzen 9 3900

12 / 24

30,588

+0.6%

Ryzen Threadripper 3970X

Ryzen Threadripper 3990X

Ryzen Threadripper PRO 5995WX

Xeon 6357P

8 / 16

30,401

0.0%

About PassMark

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.

Ryzen 9 3900 vs Xeon 6357P FPS Benchmarks

Predicted gaming performance across popular games. Tested paired with GeForce RTX 5090 to isolate CPU performance.

Search any supported game below to compare 1080p FPS for both components.

Ryzen 9 3900 vs Xeon 6357P: Pros, Cons & Final Verdict

See where each CPU makes more sense in practice: gaming, heavier work, platform cost, power draw, and upgrade path.

Ryzen 9 3900

2019

Why buy it

✅+166.7% larger total L3 cache (64 MB vs 24 MB).
✅Draws 65W instead of 80W, a 15W reduction.
✅20% more PCIe lanes (24 vs 20) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Wraith Prism), unlike Xeon 6357P.

Trade-offs

❌Lower Geekbench single-core performance for gaming (1,713 vs 2,784).
❌Lower Cinebench R23 multi-core (17,700 vs 18,000).
❌Launch MSRP is still $499 MSRP, while Xeon 6357P mostly shows up through inconsistent older-market listings.
❌Older platform position on AM4 with DDR4, while Xeon 6357P moves to LGA1700 and DDR5.

Xeon 6357P

2025

Why buy it

✅+62.5% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅Newer platform on LGA1700 with DDR5 support instead of AM4 and DDR4.
✅AVX-512 support for select workstation, AI, and scientific workloads.

Trade-offs

❌Smaller total L3 cache (24 MB vs 64 MB).
❌23.1% higher power demand at 80W vs 65W.
❌No boxed cooler included, unlike Ryzen 9 3900.

Quick Answers

So, is Xeon 6357P better than Ryzen 9 3900?

Not really, because they are built for different jobs. Xeon 6357P makes more sense for workstation-style multi-core throughput, while Ryzen 9 3900 is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Xeon 6357P is the better pick. According to our tests, it delivers 0.4% 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, Xeon 6357P is the stronger fit. You are getting 1.7% better Cinebench R23 multi-core, backed by 8 cores and 16 threads.

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

Xeon 6357P is still the faster CPU overall, but Ryzen 9 3900 is easier to justify if budget matters more than peak performance. Xeon 6357P comes in at an unclear MSRP at unclear MSRP versus $499 MSRP, and it still gives you a 0.4% average FPS lead across 50 shared CPU game tests in our data. Ryzen 9 3900 is also 100.0% better value on MSRP (61.3 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Xeon 6357P makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2019), a healthier platform with LGA1700 and DDR5 instead of AM4, more multi-core headroom with 8 cores / 16 threads instead of 12/24, and AVX-512 support for heavier modern compute workloads. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Ryzen 9 3900 vs Xeon 6357P Technical Specifications

Side-by-side specs, architecture details, clocks, memory, power, and platform differences.

Ryzen 9 3900

The Ryzen 9 3900 is manufactured by AMD. It was released in 24 September 2019 (6 years ago). It is based on the Matisse (Zen 2) (2019−2020) architecture. It features 12 cores and 24 threads. Base frequency is 3.1 GHz, with boost up to 4.3 GHz. L3 cache: 64 MB. L2 cache: 512 kB (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 30,588 points. Launch price was $499.

Xeon 6357P

The Xeon 6357P is manufactured by Intel. It was released in 24 February 2025 (less than a year ago). It is based on the Raptor Lake-R (2023−2025) architecture. It features 8 cores and 16 threads. Base frequency is 3 GHz, with boost up to 5.1 GHz. L3 cache: 24 MB (total). L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 80 Watt. Memory support: DDR5-4800. Passmark benchmark score: 30,401 points. Launch price was $556.

⚡

Processing Power

The Ryzen 9 3900 packs 12 cores / 24 threads, while the Xeon 6357P offers 8 cores / 16 threads — the Ryzen 9 3900 has 4 more cores. Boost clocks reach 4.3 GHz on the Ryzen 9 3900 versus 5.1 GHz on the Xeon 6357P — a 17% clock advantage for the Xeon 6357P (base: 3.1 GHz vs 3 GHz). The Ryzen 9 3900 uses the Matisse (Zen 2) (2019−2020) architecture (7 nm, 12 nm), while the Xeon 6357P uses Raptor Lake-R (2023−2025) (Intel 7 nm). In PassMark, the Ryzen 9 3900 scores 30,588 against the Xeon 6357P's 30,401 — a 0.6% lead for the Ryzen 9 3900. Cinebench R23 multi-core: 17,700 vs 18,000 (1.7% advantage for the Xeon 6357P). Geekbench 6 single-core — the metric most relevant to gaming — records 1,713 vs 2,784, a 47.6% lead for the Xeon 6357P that directly translates to higher frame rates. Multi-core Geekbench: 10,983 vs 12,769 (15% advantage for the Xeon 6357P). L3 cache: 64 MB on the Ryzen 9 3900 vs 24 MB (total) on the Xeon 6357P.

Feature	Ryzen 9 3900	Xeon 6357P
Cores / Threads	12 / 24+50%	8 / 16
Boost Clock	4.3 GHz	5.1 GHz+19%
Base Clock	3.1 GHz+3%	3 GHz
L3 Cache	64 MB+167%	24 MB (total)
L2 Cache	512 kB (per core)	2 MB (per core)+300%
Process	7 nm, 12 nm	Intel 7 nm
Architecture	Matisse (Zen 2) (2019−2020)	Raptor Lake-R (2023−2025)
PassMark	30,588	30,401
Cinebench R23 Multi	17,700	18,000+2%
Geekbench 6 Single	1,713	2,784+63%
Geekbench 6 Multi	10,983	12,769+16%

🧠

Memory & Platform

The Ryzen 9 3900 uses the AM4 socket (PCIe 4.0), while the Xeon 6357P uses LGA1700 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 3900 versus DDR5-4800 on the Xeon 6357P — the Xeon 6357P supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 9 3900) vs 20 (Xeon 6357P) — the Ryzen 9 3900 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X570,B550,X470,B450 (Ryzen 9 3900) and Server chipsets (Xeon 6357P).

Feature	Ryzen 9 3900	Xeon 6357P
Socket	AM4	LGA1700
PCIe Generation	PCIe 4.0	PCIe 4.0
Max RAM Speed	DDR4-3200	DDR5-4800+50%
Max RAM Capacity	128 GB	128 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	24+20%	20

🔧

Advanced Features

Only the Ryzen 9 3900 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon 6357P supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 3900) vs VT-x, VT-d, EPT (Xeon 6357P). Primary use case: Ryzen 9 3900 targets Workstation Desktop (low power), Xeon 6357P targets Edge Server / Workstation. Direct competitor: Ryzen 9 3900 rivals Core i9-9900; Xeon 6357P rivals Core i7-14700.