EPYC 4545P vs Ryzen 9 7945HX

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 7945HX 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 7945HX: 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

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7945HX across 50 shared CPU benchmark tests.
❌Lower PassMark (54,255 vs 54,425).
❌Launch MSRP is still $549 MSRP, while Ryzen 9 7945HX mostly shows up through inconsistent older-market listings.
❌18.2% higher power demand at 65W vs 55W.
❌No boxed cooler included, unlike Ryzen 9 7945HX.

Ryzen 9 7945HX

2023

Why buy it

✅Better for gaming: +8.4% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 65W, a 10W reduction.
✅Includes a boxed cooler (Laptop Integrated), unlike EPYC 4545P.

Trade-offs

❌Fewer obvious downsides in this matchup outside of normal market pricing swings.

Quick Answers

So, is Ryzen 9 7945HX 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 Ryzen 9 7945HX is the more practical desktop choice for gaming, platform cost, and everyday use.

Which one is better for gaming?

If gaming is the priority, Ryzen 9 7945HX is the better pick. According to our tests, it delivers 8.4% 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, Ryzen 9 7945HX is the stronger fit. You are getting 0.3% better PassMark, backed by 16 cores and 32 threads.

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

Ryzen 9 7945HX is still the faster CPU overall, but EPYC 4545P is easier to justify if budget matters more than peak performance. Ryzen 9 7945HX comes in at an unclear MSRP at unclear MSRP versus $549 MSRP, and it still gives you a 8.4% average FPS lead across 50 shared CPU game tests in our data. EPYC 4545P is also 100.0% better value on MSRP (98.8 vs 0.0 PassMark/$), 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 a newer CPU generation (2025 vs 2023). That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 4545P vs Ryzen 9 7945HX 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 7945HX

The Ryzen 9 7945HX is manufactured by AMD. It was released in 2023-03-12. It is based on the Dragon Range-HX (Zen 4) (2023−2024) 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 CCD = 5 nm, I/O = 6 nm process technology. Socket: FL1. Thermal design power (TDP): 55 Watt. Memory support: DDR5. Passmark benchmark score: 54,425 points. Launch price was $700.

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Processing Power

Both the EPYC 4545P and Ryzen 9 7945HX 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 7945HX — identical boost frequencies (base: 3 GHz vs 2.5 GHz). The EPYC 4545P uses the Grado (2025) architecture (4 nm), while the Ryzen 9 7945HX uses Dragon Range-HX (Zen 4) (2023−2024) (CCD = 5 nm, I/O = 6 nm). In PassMark, the EPYC 4545P scores 54,255 against the Ryzen 9 7945HX's 54,425 — a 0.3% lead for the Ryzen 9 7945HX. Both processors carry 64 MB (total) of L3 cache.

Feature	EPYC 4545P	Ryzen 9 7945HX
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%	CCD = 5 nm, I/O = 6 nm
Architecture	Grado (2025)	Dragon Range-HX (Zen 4) (2023−2024)
PassMark	54,255	54,425
Cinebench R23 Multi	—	34,521
Geekbench 6 Single	—	2,774
Geekbench 6 Multi	—	16,214

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Memory & Platform

The EPYC 4545P uses the AM5 socket (PCIe 4.0), while the Ryzen 9 7945HX uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 5600 on the EPYC 4545P versus DDR5-5200 on the Ryzen 9 7945HX — the EPYC 4545P supports 7.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 4545P supports up to 192 GB of RAM compared to 64 GB — 200% 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 7945HX).

Feature	EPYC 4545P	Ryzen 9 7945HX
Socket	AM5	FL1
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	5600+8%	DDR5-5200
Max RAM Capacity	192 GB+200%	64 GB
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. Virtualization support: VT-x, VT-d, AMD-V (EPYC 4545P) vs AMD-V (Ryzen 9 7945HX). Both include integrated graphics — AMD Radeon Graphics (EPYC 4545P) and Radeon 610M (Ryzen 9 7945HX) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Ryzen 9 7945HX targets Extreme Gaming / Mobile Workstation. Direct competitor: EPYC 4545P rivals Ryzen 9 7900X; Ryzen 9 7945HX rivals Core i9-14900HX.

Feature	EPYC 4545P	Ryzen 9 7945HX
Integrated GPU	Yes	Yes
IGPU Model	AMD Radeon Graphics	Radeon 610M
Unlocked	Yes	Yes
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d, AMD-V	AMD-V
Target Use	—	Extreme Gaming / Mobile Workstation