EPYC 4545P vs Ryzen 9 8945HX

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.

EPYC 4545P vs Ryzen 9 8945HX 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.

EPYC 4545P vs Ryzen 9 8945HX: Pros, Cons & Final Verdict

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

EPYC 4545P

2025

Why buy it

✅+2% higher PassMark.

Trade-offs

❌Launch MSRP is still $549 MSRP, while Ryzen 9 8945HX mostly shows up through inconsistent older-market listings.
❌18.2% higher power demand at 65W vs 55W.

Ryzen 9 8945HX

2025

Why buy it

✅Draws 55W instead of 65W, a 10W reduction.

Trade-offs

❌Lower PassMark (53,211 vs 54,255).

Quick Answers

So, is EPYC 4545P better than Ryzen 9 8945HX?

Not really, because they are built for different jobs. EPYC 4545P makes more sense for workstation-style multi-core throughput, while Ryzen 9 8945HX is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

For gaming, this matchup is basically a tie in the data we have.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, EPYC 4545P is the stronger fit. You are getting 2% better PassMark, backed by 16 cores and 32 threads.

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

EPYC 4545P is the better buy right now. EPYC 4545P comes in at an unclear MSRP at $549 MSRP versus unclear MSRP, and it still gives you a 0.9% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (98.8 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

EPYC 4545P makes more sense long term for 2026 and beyond. You are getting more multi-core headroom with 16 cores / 32 threads instead of 16/32. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

EPYC 4545P vs Ryzen 9 8945HX Technical Specifications

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

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.

Ryzen 9 8945HX

The Ryzen 9 8945HX is manufactured by AMD. It was released in 2025-04-01. It is based on the Dragon Range (2025) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 53,211 points. Launch price was $700.

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Processing Power

Both the EPYC 4545P and Ryzen 9 8945HX share an identical 16-core/32-thread configuration. Boost clocks reach 5.4 GHz on the EPYC 4545P versus 5.4 GHz on the Ryzen 9 8945HX — identical boost frequencies (base: 3 GHz vs 2.5 GHz). The EPYC 4545P uses the Grado (2025) architecture (4 nm), while the Ryzen 9 8945HX uses Dragon Range (2025) (5 nm). In PassMark, the EPYC 4545P scores 54,255 against the Ryzen 9 8945HX's 53,211 — a 1.9% lead for the EPYC 4545P. Both processors carry 64 MB (total) of L3 cache.

Feature	EPYC 4545P	Ryzen 9 8945HX
Cores / Threads	16 / 32	16 / 32
Boost Clock	5.4 GHz	5.4 GHz
Base Clock	3 GHz+20%	2.5 GHz
L3 Cache	64 MB (total)	64 MB (total)
L2 Cache	1 MB (per core)	1 MB (per core)
Process	4 nm-20%	5 nm
Architecture	Grado (2025)	Dragon Range (2025)
PassMark	54,255+2%	53,211

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Memory & Platform

The EPYC 4545P uses the AM5 socket (PCIe 4.0), while the Ryzen 9 8945HX uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to 5600 memory speed. The EPYC 4545P supports up to 192 of RAM compared to 96 — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 28 PCIe lanes. Chipset compatibility: AM5 (EPYC 4545P) and FL1 (Ryzen 9 8945HX).

Feature	EPYC 4545P	Ryzen 9 8945HX
Socket	AM5	FL1
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	5600	5600
Max RAM Capacity	192+100%	96
RAM Channels	2	2
ECC Support	Yes	Yes
PCIe Lanes	28	28

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Advanced Features

Both processors feature an unlocked multiplier for overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Both support VT-x, VT-d, AMD-V virtualization. Both include integrated graphics — AMD Radeon Graphics (EPYC 4545P) and AMD Radeon 610M (Ryzen 9 8945HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Direct competitor: EPYC 4545P rivals Ryzen 9 7900X; Ryzen 9 8945HX rivals Core Ultra 9 275HX.