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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

EPYC 4545P

2025

Why buy it

Trade-offs

❌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

✅+0.3% higher PassMark.
✅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.

EPYC 4545P

2025

Ryzen 9 7945HX

2023

Why buy it

✅+0.3% higher PassMark.
✅Draws 55W instead of 65W, a 10W reduction.
✅Includes a boxed cooler (Laptop Integrated), unlike EPYC 4545P.

Trade-offs

❌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.

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 in a simple one-size-fits-all way. EPYC 4545P makes more sense for workstation-style multi-core throughput, while Ryzen 9 7945HX is the better mainstream desktop choice for gaming, platform cost, and day-to-day practicality.

Which one is better for gaming?

For gaming, the two CPUs are effectively a wash in the available data.

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

For streaming, content creation, and heavier multitasking, Ryzen 9 7945HX is the better 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 makes more sense if price matters more than absolute performance. Ryzen 9 7945HX is at an unclear MSRP at unclear MSRP versus $549 MSRP, and it gives you a 2.6% average FPS lead across 2 shared CPU game tests in our data. EPYC 4545P is also 100.0% better value on MSRP (98.8 vs 0.0 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

EPYC 4545P is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2023). That should give you a better long-term upgrade path for motherboard, RAM, and future CPU swaps.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

EPYC 4545P Benchmark Check

Ryzen 9 7945HX Benchmark Check

Path of Exile 2

Preset	EPYC 4545P	Ryzen 9 7945HX
1080p
low	286 FPS	301 FPS
medium	262 FPS	276 FPS
high	215 FPS	224 FPS
ultra	181 FPS	190 FPS
1440p
low	262 FPS	271 FPS
medium	218 FPS	226 FPS
high	167 FPS	172 FPS
ultra	148 FPS	153 FPS
4K
low	182 FPS	189 FPS
medium	151 FPS	157 FPS
high	115 FPS	119 FPS
ultra	102 FPS	107 FPS

Open EPYC 4545P Open Ryzen 9 7945HX

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 4545P	Ryzen 9 7945HX
1080p
low	674 FPS	744 FPS
medium	580 FPS	620 FPS
high	434 FPS	466 FPS
ultra	375 FPS	397 FPS
1440p
low	567 FPS	630 FPS
medium	506 FPS	541 FPS
high	392 FPS	419 FPS
ultra	312 FPS	328 FPS
4K
low	320 FPS	355 FPS
medium	289 FPS	309 FPS
high	255 FPS	272 FPS
ultra	219 FPS	230 FPS

Open EPYC 4545P Open Ryzen 9 7945HX

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 4545P	Ryzen 9 7945HX
1080p
low	850 FPS	893 FPS
medium	679 FPS	712 FPS
high	601 FPS	618 FPS
ultra	515 FPS	533 FPS
1440p
low	679 FPS	718 FPS
medium	543 FPS	572 FPS
high	469 FPS	487 FPS
ultra	398 FPS	418 FPS
4K
low	484 FPS	513 FPS
medium	401 FPS	427 FPS
high	360 FPS	383 FPS
ultra	302 FPS	323 FPS

Open EPYC 4545P Open Ryzen 9 7945HX

League of Legends

League of Legends

Valorant

Preset	EPYC 4545P	Ryzen 9 7945HX
1080p
low	1072 FPS	1129 FPS
medium	966 FPS	1006 FPS
high	843 FPS	873 FPS
ultra	760 FPS	768 FPS
1440p
low	842 FPS	900 FPS
medium	747 FPS	790 FPS
high	652 FPS	689 FPS
ultra	566 FPS	584 FPS
4K
low	619 FPS	648 FPS
medium	553 FPS	578 FPS
high	487 FPS	510 FPS
ultra	421 FPS	436 FPS

Open EPYC 4545P Open Ryzen 9 7945HX

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 4545P and Ryzen 9 7945HX

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 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 4545P supports up to 192 of RAM compared to 64 GB — 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 7945HX).

Feature	EPYC 4545P	Ryzen 9 7945HX
Socket	AM5	FL1
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	5600+111900%	DDR5-5200
Max RAM Capacity	192	64 GB+34952433%
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