Core Ultra 9 275HX vs EPYC 4545P

Core Ultra 9 275HX vs EPYC 4545P Performance Spectrum

Core Ultra 9 275HX

24 / 24

56,018

+3.2%

54,255

0.0%

Ryzen Threadripper PRO 7965WX

Ryzen Threadripper PRO 5995WX

Ryzen Threadripper 9970X

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 4545P 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 4545P: 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: +6.6% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 65W, a 10W reduction.

Trade-offs

❌Smaller total L3 cache (36 MB vs 64 MB).
❌Less compelling for workstation-style loads than EPYC 4545P, which brings 16 cores / 32 threads and 28 PCIe lanes.
❌No AVX-512 support for niche heavy compute workloads where it can matter.

EPYC 4545P

2025

Why buy it

✅+77.8% larger total L3 cache (64 MB vs 36 MB).
✅Better for workstations and heavier parallel workloads: 16 cores / 32 threads, plus 28 PCIe lanes vs 24.
✅16.7% more PCIe lanes (28 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 (54,255 vs 56,018).
❌Launch MSRP is still $549 MSRP, while Core Ultra 9 275HX mostly shows up through inconsistent older-market listings.
❌18.2% higher power demand at 65W vs 55W.

Quick Answers

So, is Core Ultra 9 275HX better than EPYC 4545P?

Not really, because they are built for different jobs. EPYC 4545P 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 6.6% 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 3.2% 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 EPYC 4545P 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 $549 MSRP, and it still gives you a 6.6% average FPS lead across 50 shared CPU game tests in our data. EPYC 4545P is also 100.0% better value on MSRP (98.8 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

EPYC 4545P makes more sense long term for 2026 and beyond. You are getting 77.8% larger total L3 cache (64 MB vs 36 MB) and AVX-512 support for heavier modern compute workloads. That makes it the safer long-term bet.

Core Ultra 9 275HX vs EPYC 4545P 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 4545P

The EPYC 4545P is manufactured by AMD. It was released in 13 May 2025 (less than a year ago). It is based on the Grado (2025) architecture. It features 16 cores and 32 threads. Base frequency is 3 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 54,255 points. Launch price was $549.

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Processing Power

The Core Ultra 9 275HX packs 24 cores / 24 threads, while the EPYC 4545P offers 16 cores / 32 threads — the Core Ultra 9 275HX has 8 more cores. Boost clocks reach 5.4 GHz on the Core Ultra 9 275HX versus 5.4 GHz on the EPYC 4545P — identical boost frequencies (base: 2.7 GHz vs 3 GHz). The Core Ultra 9 275HX uses the Arrow Lake-HX (2025) architecture (3 nm), while the EPYC 4545P uses Grado (2025) (4 nm). In PassMark, the Core Ultra 9 275HX scores 56,018 against the EPYC 4545P's 54,255 — a 3.2% lead for the Core Ultra 9 275HX. L3 cache: 36 MB (total) on the Core Ultra 9 275HX vs 64 MB (total) on the EPYC 4545P.

Feature	Core Ultra 9 275HX	EPYC 4545P
Cores / Threads	24 / 24+50%	16 / 32
Boost Clock	5.4 GHz	5.4 GHz
Base Clock	2.7 GHz	3 GHz+11%
L3 Cache	36 MB (total)	64 MB (total)+78%
L2 Cache	3 MB (per core)+200%	1 MB (per core)
Process	3 nm-25%	4 nm
Architecture	Arrow Lake-HX (2025)	Grado (2025)
PassMark	56,018+3%	54,255
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 4545P uses AM5 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-6400 on the Core Ultra 9 275HX versus 5600 on the EPYC 4545P — the Core Ultra 9 275HX supports 14.3% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core Ultra 9 275HX supports up to 256 GB of RAM compared to 192 GB — 33.3% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Core Ultra 9 275HX) vs 28 (EPYC 4545P) — the EPYC 4545P offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM870,WM880 (Core Ultra 9 275HX) and AM5 (EPYC 4545P).

Feature	Core Ultra 9 275HX	EPYC 4545P
Socket	FCBGA2114	AM5
PCIe Generation	PCIe 5.0+25%	PCIe 4.0
Max RAM Speed	DDR5-6400+14%	5600
Max RAM Capacity	256 GB+33%	192 GB
RAM Channels	2	2
ECC Support	No	Yes
PCIe Lanes	24	28+17%

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Advanced Features

Both processors feature an unlocked multiplier for overclocking. Only the EPYC 4545P supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Core Ultra 9 275HX) vs VT-x, VT-d, AMD-V (EPYC 4545P). Both include integrated graphics — Intel Arc Graphics (Core Ultra 9 275HX) and AMD Radeon Graphics (EPYC 4545P) — useful as a fallback for troubleshooting or display output without 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 4545P rivals Ryzen 9 7900X.

Feature	Core Ultra 9 275HX	EPYC 4545P
Integrated GPU	Yes	Yes
IGPU Model	Intel Arc Graphics	AMD Radeon Graphics
Unlocked	Yes	Yes
AVX-512	No	Yes
Virtualization	VT-x, VT-d	VT-x, VT-d, AMD-V
Target Use	High-End Gaming Laptop	—