Core i9-9990XE vs Xeon 6357P

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.

Core i9-9990XE 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.

Core i9-9990XE 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.

Core i9-9990XE

2019

Why buy it

✅Better for gaming: +21.8% higher average FPS across 50 shared CPU benchmark tests.
✅120% more PCIe lanes (44 vs 20) for storage and expansion-heavy builds.

Trade-offs

❌Smaller total L3 cache (19 MB vs 24 MB).
❌Launch MSRP is still $2,000 MSRP, while Xeon 6357P mostly shows up through inconsistent older-market listings.
❌218.8% higher power demand at 255W vs 80W.
❌Older platform position on LGA2066 with DDR4, while Xeon 6357P moves to LGA1700 and DDR5.

Xeon 6357P

2025

Why buy it

✅+24.7% larger total L3 cache (24 MB vs 19 MB).
✅Draws 80W instead of 255W, a 175W reduction.
✅Newer platform on LGA1700 with DDR5 support instead of LGA2066 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Core i9-9990XE across 50 shared CPU benchmark tests.
❌Lower Geekbench multi-core (12,769 vs 16,199).

Quick Answers

So, is Core i9-9990XE better than Xeon 6357P?

Not really, because they are built for different jobs. Xeon 6357P makes more sense for workstation-style multi-core throughput, while Core i9-9990XE is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Core i9-9990XE is the better pick. According to our tests, it delivers 21.8% 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, Core i9-9990XE is the stronger fit. You are getting 26.9% better Geekbench multi-core, backed by 14 cores and 28 threads.

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

Core i9-9990XE is the better buy right now. Core i9-9990XE comes in at an unclear MSRP at $2,000 MSRP versus unclear MSRP, and it still gives you a 21.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (15.1 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit 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 LGA2066, and 24.7% larger total L3 cache (24 MB vs 19 MB). That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core i9-9990XE vs Xeon 6357P Technical Specifications

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

Core i9-9990XE

The Core i9-9990XE is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 14 cores and 28 threads. Base frequency is 4 GHz, with boost up to 5.1 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 255 Watt. Memory support: DDR4 Quad-channel. Passmark benchmark score: 30,162 points. Launch price was $2,800.

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.

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Processing Power

The Core i9-9990XE packs 14 cores / 28 threads, while the Xeon 6357P offers 8 cores / 16 threads — the Core i9-9990XE has 6 more cores. Boost clocks reach 5.1 GHz on the Core i9-9990XE versus 5.1 GHz on the Xeon 6357P — identical boost frequencies (base: 4 GHz vs 3 GHz). The Core i9-9990XE uses the Skylake (server) (2017−2018) architecture (14 nm), while the Xeon 6357P uses Raptor Lake-R (2023−2025) (Intel 7 nm). In PassMark, the Core i9-9990XE scores 30,162 against the Xeon 6357P's 30,401 — a 0.8% lead for the Xeon 6357P. Geekbench 6 single-core — the metric most relevant to gaming — records 1,392 vs 2,784, a 66.7% lead for the Xeon 6357P that directly translates to higher frame rates. Multi-core Geekbench: 16,199 vs 12,769 (23.7% advantage for the Core i9-9990XE). L3 cache: 19.25 MB (total) on the Core i9-9990XE vs 24 MB (total) on the Xeon 6357P.

Feature	Core i9-9990XE	Xeon 6357P
Cores / Threads	14 / 28+75%	8 / 16
Boost Clock	5.1 GHz	5.1 GHz
Base Clock	4 GHz+33%	3 GHz
L3 Cache	19.25 MB (total)	24 MB (total)+25%
L2 Cache	1 MB (per core)	2 MB (per core)+100%
Process	14 nm	Intel 7 nm-50%
Architecture	Skylake (server) (2017−2018)	Raptor Lake-R (2023−2025)
PassMark	30,162	30,401
Cinebench R23 Multi	—	18,000
Geekbench 6 Single	1,392	2,784+100%
Geekbench 6 Multi	16,199+27%	12,769

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Memory & Platform

The Core i9-9990XE uses the LGA2066 socket (PCIe 3.0), while the Xeon 6357P uses LGA1700 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2666 on the Core i9-9990XE versus DDR5-4800 on the Xeon 6357P — the Xeon 6357P supports 80% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Memory channels: 4 (Core i9-9990XE) vs 2 (Xeon 6357P). PCIe lanes: 44 (Core i9-9990XE) vs 20 (Xeon 6357P) — the Core i9-9990XE offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X299 (Core i9-9990XE) and Server chipsets (Xeon 6357P).

Feature	Core i9-9990XE	Xeon 6357P
Socket	LGA2066	LGA1700
PCIe Generation	PCIe 3.0	PCIe 4.0+33%
Max RAM Speed	DDR4-2666	DDR5-4800+80%
Max RAM Capacity	128 GB	128 GB
RAM Channels	4+100%	2
ECC Support	No	Yes
PCIe Lanes	44+120%	20

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Advanced Features

Only the Core i9-9990XE has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d (Core i9-9990XE) vs VT-x, VT-d, EPT (Xeon 6357P). Primary use case: Core i9-9990XE targets HEDT, Xeon 6357P targets Edge Server / Workstation. Direct competitor: Core i9-9990XE rivals Threadripper 2970WX; Xeon 6357P rivals Core i7-14700.