EPYC 7542 vs Ryzen 9 7845HX

CPU

GPU

EPYC 7542

32 Cores64 Thrd225 WWMax: 3.4 GHz2019

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Ryzen 9 7845HX

12 Cores24 Thrd55 WWMax: 5.2 GHz2023

Ryzen family

·······

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EPYC 7542 vs Ryzen 9 7845HX Performance Spectrum

EPYC 7542

32 / 64

45,359

+0.9%

Ryzen 5 8600G

Ryzen 9 8945H

Ryzen AI 9 HX 370

Ryzen Threadripper PRO 5945WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

Ryzen 9 7845HX

12 / 24

44,940

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper PRO 5975WX

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

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.

EPYC 7542 vs Ryzen 9 7845HX 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 7542 vs Ryzen 9 7845HX: Pros, Cons & Final Verdict

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

EPYC 7542

2019

Why buy it

✅+0.9% higher PassMark.
✅+100% larger total L3 cache (128 MB vs 64 MB).
✅Better for workstations and heavier parallel workloads: 32 cores / 64 threads, plus 128 PCIe lanes vs 28.
✅357.1% more PCIe lanes (128 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Ryzen 9 7845HX across 50 shared CPU benchmark tests.
❌Launch MSRP is still $3,400 MSRP, while Ryzen 9 7845HX mostly shows up through inconsistent older-market listings.
❌309.1% higher power demand at 225W vs 55W.
❌Older platform position on SP3 with DDR4, while Ryzen 9 7845HX moves to FL1 and DDR5.
❌No integrated graphics, while Ryzen 9 7845HX can still boot and troubleshoot without a discrete GPU.

Ryzen 9 7845HX

2023

Why buy it

✅Better for gaming: +24.0% higher average FPS across 50 shared CPU benchmark tests.
✅Draws 55W instead of 225W, a 170W reduction.
✅Newer platform on FL1 with DDR5 support instead of SP3 and DDR4.
✅Integrated graphics onboard with Radeon 610M, while EPYC 7542 needs a discrete GPU.
✅Includes a boxed cooler (Laptop Integrated), unlike EPYC 7542.

Trade-offs

❌Lower PassMark (44,940 vs 45,359).
❌Smaller total L3 cache (64 MB vs 128 MB).
❌Less compelling for workstation-style loads than EPYC 7542, which brings 32 cores / 64 threads and 128 PCIe lanes.

Quick Answers

So, is Ryzen 9 7845HX better than EPYC 7542?

Not really, because they are built for different jobs. EPYC 7542 makes more sense for workstation-style multi-core throughput, while Ryzen 9 7845HX 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 7542 is the stronger fit. You are getting 0.9% better PassMark, backed by 32 cores and 64 threads. It also has the larger cache pool with 100% larger total L3 cache (128 MB vs 64 MB).

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

Ryzen 9 7845HX is still the faster CPU overall, but EPYC 7542 is easier to justify if budget matters more than peak performance. Ryzen 9 7845HX comes in at an unclear MSRP at unclear MSRP versus $3,400 MSRP, and it still gives you a 24.0% average FPS lead across 50 shared CPU game tests in our data. The compromise is that EPYC 7542 is still stronger for heavier multi-core work with 0.9% better PassMark. EPYC 7542 is also 100.0% better value on MSRP (13.3 vs 0.0 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Ryzen 9 7845HX makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2019) and a healthier platform with FL1 and DDR5 instead of SP3. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 7542 vs Ryzen 9 7845HX Technical Specifications

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

EPYC 7542

The EPYC 7542 is manufactured by AMD. It was released in 7 August 2019 (6 years ago). It is based on the Zen 2 (2017−2020) architecture. It features 32 cores and 64 threads. Base frequency is 2.9 GHz, with boost up to 3.4 GHz. L3 cache: 128 MB (total). L2 cache: 512K (per core). Built on 7 nm, 14 nm process technology. Socket: SP3. Thermal design power (TDP): 225 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 45,359 points. Launch price was $3,400.

Ryzen 9 7845HX

The Ryzen 9 7845HX is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Dragon Range-HX (Zen 4) (2023−2024) architecture. It features 12 cores and 24 threads. Base frequency is 3 GHz, with boost up to 5.2 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: 44,940 points. Launch price was $499.

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Processing Power

The EPYC 7542 packs 32 cores / 64 threads, while the Ryzen 9 7845HX offers 12 cores / 24 threads — the EPYC 7542 has 20 more cores. Boost clocks reach 3.4 GHz on the EPYC 7542 versus 5.2 GHz on the Ryzen 9 7845HX — a 41.9% clock advantage for the Ryzen 9 7845HX (base: 2.9 GHz vs 3 GHz). The EPYC 7542 uses the Zen 2 (2017−2020) architecture (7 nm, 14 nm), while the Ryzen 9 7845HX uses Dragon Range-HX (Zen 4) (2023−2024) (CCD = 5 nm, I/O = 6 nm). In PassMark, the EPYC 7542 scores 45,359 against the Ryzen 9 7845HX's 44,940 — a 0.9% lead for the EPYC 7542. L3 cache: 128 MB (total) on the EPYC 7542 vs 64 MB (total) on the Ryzen 9 7845HX.

Feature	EPYC 7542	Ryzen 9 7845HX
Cores / Threads	32 / 64+167%	12 / 24
Boost Clock	3.4 GHz	5.2 GHz+53%
Base Clock	2.9 GHz	3 GHz+3%
L3 Cache	128 MB (total)+100%	64 MB (total)
L2 Cache	512K (per core)+51100%	1 MB (per core)
Process	7 nm, 14 nm	CCD = 5 nm, I/O = 6 nm-29%
Architecture	Zen 2 (2017−2020)	Dragon Range-HX (Zen 4) (2023−2024)
PassMark	45,359	44,940
Cinebench R23 Multi	—	26,654
Geekbench 6 Single	—	2,697
Geekbench 6 Multi	—	15,039

🧠

Memory & Platform

The EPYC 7542 uses the SP3 socket (PCIe 4.0), while the Ryzen 9 7845HX uses FL1 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 3200 on the EPYC 7542 versus DDR5-5200 on the Ryzen 9 7845HX — the Ryzen 9 7845HX supports 62.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The EPYC 7542 supports up to 4096 GB of RAM compared to 64 GB — 6300% more capacity for professional workloads. Memory channels: 8 (EPYC 7542) vs 2 (Ryzen 9 7845HX). PCIe lanes: 128 (EPYC 7542) vs 28 (Ryzen 9 7845HX) — the EPYC 7542 offers 100 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7542) and FL1 (Ryzen 9 7845HX).

Feature	EPYC 7542	Ryzen 9 7845HX
Socket	SP3	FL1
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	3200	DDR5-5200+63%
Max RAM Capacity	4096 GB+6300%	64 GB
RAM Channels	8+300%	2
ECC Support	Yes	Yes
PCIe Lanes	128+357%	28

🔧

Advanced Features

Only the Ryzen 9 7845HX has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: VT-x, VT-d, AMD-V (EPYC 7542) vs AMD-V (Ryzen 9 7845HX). The Ryzen 9 7845HX includes integrated graphics (Radeon 610M), while the EPYC 7542 requires a dedicated GPU. Primary use case: Ryzen 9 7845HX targets High-end Gaming / Content Creation. Direct competitor: EPYC 7542 rivals Xeon Gold 6248R; Ryzen 9 7845HX rivals Core i9-13900HX.

Feature	EPYC 7542	Ryzen 9 7845HX
Integrated GPU	No	Yes
IGPU Model	None	Radeon 610M
Unlocked	No	Yes
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d, AMD-V	AMD-V
Target Use	—	High-end Gaming / Content Creation