Core Ultra 9 275HX vs Xeon Platinum 8358

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 Ultra 9 275HX vs Xeon Platinum 8358 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 Ultra 9 275HX vs Xeon Platinum 8358: Pros, Cons & Final Verdict

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

Core Ultra 9 275HX

2025

Why buy it

✅Better for gaming: +20.9% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 250W, a 195W reduction.
✅Newer platform on FCBGA2114 with DDR5 support instead of LGA4189 and DDR4.
✅Integrated graphics onboard with Intel Arc Graphics, while Xeon Platinum 8358 needs a discrete GPU.

Trade-offs

❌Smaller total L3 cache (36 MB vs 48 MB).
❌Less compelling for workstation-style loads than Xeon Platinum 8358, which brings 32 cores / 64 threads and 64 PCIe lanes.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

Xeon Platinum 8358

2021

Why buy it

✅+33.3% larger total L3 cache (48 MB vs 36 MB).
✅Better for workstations and heavier parallel workloads: 32 cores / 64 threads, plus 64 PCIe lanes vs 24.
✅166.7% more PCIe lanes (64 vs 24) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Core Ultra 9 275HX across 50 shared CPU benchmark tests.
❌Lower PassMark (54,416 vs 56,018).
❌Launch MSRP is still $4,607 MSRP, while Core Ultra 9 275HX mostly shows up through inconsistent older-market listings.
❌354.5% higher power demand at 250W vs 55W.
❌Older platform position on LGA4189 with DDR4, while Core Ultra 9 275HX moves to FCBGA2114 and DDR5.

Quick Answers

So, is Core Ultra 9 275HX better than Xeon Platinum 8358?

Not really, because they are built for different jobs. Xeon Platinum 8358 makes more sense for workstation-style multi-core throughput, while Core Ultra 9 275HX 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 Ultra 9 275HX is the better pick. According to our tests, it delivers 20.9% 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, Core Ultra 9 275HX is the stronger fit. You are getting 2.9% better PassMark, backed by 24 cores and 24 threads.

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

Core Ultra 9 275HX is still the faster CPU overall, but Xeon Platinum 8358 is easier to justify if budget matters more than peak performance. Core Ultra 9 275HX comes in at an unclear MSRP at unclear MSRP versus $4,607 MSRP, and it still gives you a 20.9% average FPS lead across 50 shared CPU game tests in our data. Xeon Platinum 8358 is also 100.0% better value on MSRP (11.8 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Core Ultra 9 275HX makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2021), a healthier platform with FCBGA2114 and DDR5 instead of LGA4189, and more multi-core headroom with 24 cores / 24 threads instead of 32/64. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core Ultra 9 275HX vs Xeon Platinum 8358 Technical Specifications

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

Core Ultra 9 275HX

The Core Ultra 9 275HX is manufactured by Intel. It was released in 2025-01-01. It is based on the Arrow Lake-HX (2025) architecture. It features 24 cores and 24 threads. Base frequency is 2.7 GHz, with boost up to 5.4 GHz. L3 cache: 36 MB (total). L2 cache: 3 MB (per core). Built on 3 nm process technology. Socket: FCBGA2114. Thermal design power (TDP): 55 Watt. Memory support: DDR5-6400. Passmark benchmark score: 56,018 points. Launch price was $600.

Xeon Platinum 8358

The Xeon Platinum 8358 is manufactured by Intel. It was released in 2021-04-06. It is based on the Ice Lake-SP (2021) architecture. It features 32 cores and 64 threads. Base frequency is 2.6 GHz, with boost up to 3.4 GHz. L3 cache: 48 MB (total). L2 cache: 1 MB (per core). Built on 10 nm process technology. Socket: LGA4189. Thermal design power (TDP): 250 Watt. Memory support: DDR4-3200. Passmark benchmark score: 54,416 points. Launch price was $3,950.

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Processing Power

The Core Ultra 9 275HX packs 24 cores / 24 threads, while the Xeon Platinum 8358 offers 32 cores / 64 threads — the Xeon Platinum 8358 has 8 more cores. Boost clocks reach 5.4 GHz on the Core Ultra 9 275HX versus 3.4 GHz on the Xeon Platinum 8358 — a 45.5% clock advantage for the Core Ultra 9 275HX (base: 2.7 GHz vs 2.6 GHz). The Core Ultra 9 275HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the Xeon Platinum 8358 uses Ice Lake-SP (2021) (10 nm). In PassMark, the Core Ultra 9 275HX scores 56,018 against the Xeon Platinum 8358's 54,416 — a 2.9% lead for the Core Ultra 9 275HX. L3 cache: 36 MB (total) on the Core Ultra 9 275HX vs 48 MB (total) on the Xeon Platinum 8358.

Feature	Core Ultra 9 275HX	Xeon Platinum 8358
Cores / Threads	24 / 24	32 / 64+33%
Boost Clock	5.4 GHz+59%	3.4 GHz
Base Clock	2.7 GHz+4%	2.6 GHz
L3 Cache	36 MB (total)	48 MB (total)+33%
L2 Cache	3 MB (per core)+200%	1 MB (per core)
Process	3 nm-70%	10 nm
Architecture	Arrow Lake-HX (2025)	Ice Lake-SP (2021)
PassMark	56,018+3%	54,416
Geekbench 6 Single	2,835	—
Geekbench 6 Multi	17,908	—

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Memory & Platform

The Core Ultra 9 275HX uses the FCBGA2114 socket (PCIe 5.0), while the Xeon Platinum 8358 uses LGA4189 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6400 on the Core Ultra 9 275HX versus 3200 on the Xeon Platinum 8358 — the Core Ultra 9 275HX supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Platinum 8358 supports up to 4096 GB of RAM compared to 256 GB — 1500% more capacity for professional workloads. Memory channels: 2 (Core Ultra 9 275HX) vs 8 (Xeon Platinum 8358). PCIe lanes: 24 (Core Ultra 9 275HX) vs 64 (Xeon Platinum 8358) — the Xeon Platinum 8358 offers 40 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM870,WM880 (Core Ultra 9 275HX) and C621A (Xeon Platinum 8358).

Feature	Core Ultra 9 275HX	Xeon Platinum 8358
Socket	FCBGA2114	LGA4189
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-6400+100%	3200
Max RAM Capacity	256 GB	4096 GB+1500%
RAM Channels	2	8+300%
ECC Support	No	Yes
PCIe Lanes	24	64+167%

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Advanced Features

Only the Core Ultra 9 275HX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon Platinum 8358 supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. The Core Ultra 9 275HX includes integrated graphics (Intel Arc Graphics), while the Xeon Platinum 8358 requires a dedicated GPU. Primary use case: Core Ultra 9 275HX targets High-End Gaming Laptop. Direct competitor: Core Ultra 9 275HX rivals Ryzen 9 9955HX; Xeon Platinum 8358 rivals EPYC 7543.