Core Ultra 9 275HX vs EPYC 7443

Core Ultra 9 275HX vs EPYC 7443 Performance Spectrum

Core Ultra 9 275HX

24 / 24

56,018

0.0%

56,743

+1.3%

Ryzen Threadripper PRO 3995WX

Ryzen Threadripper 7970X

Ryzen Threadripper PRO 7985WX

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.

Core Ultra 9 275HX vs EPYC 7443 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 EPYC 7443: 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: +27.5% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 200W, a 145W reduction.
✅Newer platform on FCBGA2114 with DDR5 support instead of SP3 and DDR4.
✅Integrated graphics onboard with Intel Arc Graphics, while EPYC 7443 needs a discrete GPU.

Trade-offs

❌Lower PassMark (56,018 vs 56,743).
❌Smaller total L3 cache (36 MB vs 128 MB).
❌Less compelling for workstation-style loads than EPYC 7443, which brings 24 cores / 48 threads and 128 PCIe lanes.

EPYC 7443

2021

Why buy it

✅+1.3% higher PassMark.
✅+255.6% larger total L3 cache (128 MB vs 36 MB).
✅Better for workstations and heavier parallel workloads: 24 cores / 48 threads, plus 128 PCIe lanes vs 24.
✅433.3% more PCIe lanes (128 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.
❌Launch MSRP is still $2,010 MSRP, while Core Ultra 9 275HX mostly shows up through inconsistent older-market listings.
❌263.6% higher power demand at 200W vs 55W.
❌Older platform position on SP3 with DDR4, while Core Ultra 9 275HX moves to FCBGA2114 and DDR5.
❌No integrated graphics, while Core Ultra 9 275HX can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Core Ultra 9 275HX better than EPYC 7443?

Not really, because they are built for different jobs. EPYC 7443 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 streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, EPYC 7443 is the stronger fit. You are getting 1.3% better PassMark, backed by 24 cores and 48 threads. It also has the larger cache pool with 255.6% larger total L3 cache (128 MB vs 36 MB).

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

Core Ultra 9 275HX is still the faster CPU overall, but EPYC 7443 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 $2,010 MSRP, and it still gives you a 27.5% average FPS lead across 50 shared CPU game tests in our data. The compromise is that EPYC 7443 is still stronger for heavier multi-core work with 1.3% better PassMark. EPYC 7443 is also 100.0% better value on MSRP (28.2 vs 0.0 PassMark/$), 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) and a healthier platform with FCBGA2114 and DDR5 instead of SP3. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

Core Ultra 9 275HX vs EPYC 7443 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.

EPYC 7443

The EPYC 7443 is manufactured by AMD. It was released in 15 March 2021 (4 years ago). It is based on the Milan (2021−2023) architecture. It features 24 cores and 48 threads. Base frequency is 2.85 GHz, with boost up to 4 GHz. L3 cache: 128 MB (total). L2 cache: 512 kB (per core). Built on 7 nm+ process technology. Socket: SP3. Thermal design power (TDP): 200 Watt. Memory support: DDR4-3200. Passmark benchmark score: 56,743 points. Launch price was $2,010.

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Processing Power

The Core Ultra 9 275HX packs 24 cores / 24 threads, matching the EPYC 7443's 24 cores. Boost clocks reach 5.4 GHz on the Core Ultra 9 275HX versus 4 GHz on the EPYC 7443 — a 29.8% clock advantage for the Core Ultra 9 275HX (base: 2.7 GHz vs 2.85 GHz). The Core Ultra 9 275HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the EPYC 7443 uses Milan (2021−2023) (7 nm+). In PassMark, the Core Ultra 9 275HX scores 56,018 against the EPYC 7443's 56,743 — a 1.3% lead for the EPYC 7443. L3 cache: 36 MB (total) on the Core Ultra 9 275HX vs 128 MB (total) on the EPYC 7443.

Feature	Core Ultra 9 275HX	EPYC 7443
Cores / Threads	24 / 24	24 / 48
Boost Clock	5.4 GHz+35%	4 GHz
Base Clock	2.7 GHz	2.85 GHz+6%
L3 Cache	36 MB (total)	128 MB (total)+256%
L2 Cache	3 MB (per core)+500%	512 kB (per core)
Process	3 nm-57%	7 nm+
Architecture	Arrow Lake-HX (2025)	Milan (2021−2023)
PassMark	56,018	56,743+1%
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 EPYC 7443 uses SP3 (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 EPYC 7443 — the Core Ultra 9 275HX supports 100% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7443 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 (EPYC 7443). PCIe lanes: 24 (Core Ultra 9 275HX) vs 128 (EPYC 7443) — the EPYC 7443 offers 104 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM870,WM880 (Core Ultra 9 275HX) and SP3 (EPYC 7443).

Feature	Core Ultra 9 275HX	EPYC 7443
Socket	FCBGA2114	SP3
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	128+433%

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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. Both support VT-x, VT-d virtualization. The Core Ultra 9 275HX includes integrated graphics (Intel Arc Graphics), while the EPYC 7443 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; EPYC 7443 rivals Xeon Platinum 8362.