EPYC 7551P vs Xeon Gold 6426Y

CPU

GPU

EPYC 7551P

32 Cores64 Thrd180 WWMax: 3 GHz2017

Popular choices:

•••••••••

Xeon Gold 6426Y

16 Cores32 Thrd185 WWMax: 4.1 GHz2023

Popular choices:

•••••••••

Performance Spectrum - CPU

EPYC 7551P

32 / 64

38,111

+0.4%

Ryzen Threadripper 9960X

Ryzen Threadripper 7970X

Xeon Gold 6426Y

16 / 32

37,944

0.0%

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.

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 7551P

2017

Why buy it

✅+0.4% higher PassMark.
✅+70.7% larger total L3 cache (64 MB vs 38 MB).
✅Costs $45 less on MSRP ($2,100 MSRP vs $2,145 MSRP).
✅Draws 180W instead of 185W, a 5W reduction.
✅60% more PCIe lanes (128 vs 80) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Gold 6426Y across 4 shared CPU benchmark tests.
❌Older platform position on TR4 with DDR4, while Xeon Gold 6426Y moves to LGA4677 and DDR5.

Xeon Gold 6426Y

2023

Why buy it

✅Better for gaming: +64.1% higher average FPS across 4 shared CPU benchmark tests.
✅Newer platform on LGA4677 with DDR5 support instead of TR4 and DDR4.

Trade-offs

❌Lower PassMark (37,944 vs 38,111).
❌Smaller total L3 cache (38 MB vs 64 MB).
❌
2.1% HIGHER MSRP
$2,145 MSRPvs$2,100 MSRP

EPYC 7551P

2017

Xeon Gold 6426Y

2023

Why buy it

✅+0.4% higher PassMark.
✅+70.7% larger total L3 cache (64 MB vs 38 MB).
✅Costs $45 less on MSRP ($2,100 MSRP vs $2,145 MSRP).
✅Draws 180W instead of 185W, a 5W reduction.
✅60% more PCIe lanes (128 vs 80) for storage and expansion-heavy builds.

Why buy it

✅Better for gaming: +64.1% higher average FPS across 4 shared CPU benchmark tests.
✅Newer platform on LGA4677 with DDR5 support instead of TR4 and DDR4.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon Gold 6426Y across 4 shared CPU benchmark tests.
❌Older platform position on TR4 with DDR4, while Xeon Gold 6426Y moves to LGA4677 and DDR5.

Trade-offs

❌Lower PassMark (37,944 vs 38,111).
❌Smaller total L3 cache (38 MB vs 64 MB).
❌
2.1% HIGHER MSRP
$2,145 MSRPvs$2,100 MSRP

Quick Answers

So, is EPYC 7551P better than Xeon Gold 6426Y?

It depends on what matters more to you. For gaming, Xeon Gold 6426Y is ahead with a 64.1% average FPS lead across 4 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, EPYC 7551P pulls ahead with 0.4% better PassMark. EPYC 7551P also has the bigger cache pool with 70.7% larger total L3 cache (64 MB vs 38 MB).

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

For streaming, content creation, and heavier multitasking, EPYC 7551P is the better fit. You are getting 0.4% better PassMark, backed by 32 cores and 64 threads. It also carries the larger cache pool with 70.7% larger total L3 cache (64 MB vs 38 MB).

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

EPYC 7551P is the smarter buy today. EPYC 7551P is $45 cheaper on MSRP at $2,100 MSRP versus $2,145 MSRP, and it gives you 0.4% better PassMark. The trade-off is that Xeon Gold 6426Y is still the better pure gaming CPU with a 64.1% average FPS lead across 4 shared CPU game tests in our data. It is also 2.6% better value on MSRP (18.1 vs 17.7 PassMark/$), so the better CPU is not just faster, it is also the cleaner value play on paper.

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

Xeon Gold 6426Y is the more future-proof choice for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2017) and a healthier platform with LGA4677 and DDR5 instead of TR4. 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 7551P Benchmark Check

Xeon Gold 6426Y Benchmark Check

Path of Exile 2

Preset	EPYC 7551P	Xeon Gold 6426Y
1080p
low	187 FPS	196 FPS
medium	165 FPS	160 FPS
high	132 FPS	132 FPS
ultra	105 FPS	103 FPS
1440p
low	153 FPS	158 FPS
medium	127 FPS	123 FPS
high	97 FPS	97 FPS
ultra	78 FPS	76 FPS
4K
low	71 FPS	73 FPS
medium	63 FPS	60 FPS
high	48 FPS	47 FPS
ultra	39 FPS	39 FPS

Open EPYC 7551P Open Xeon Gold 6426Y

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 7551P	Xeon Gold 6426Y
1080p
low	207 FPS	576 FPS
medium	188 FPS	503 FPS
high	160 FPS	406 FPS
ultra	131 FPS	361 FPS
1440p
low	178 FPS	497 FPS
medium	163 FPS	439 FPS
high	141 FPS	365 FPS
ultra	111 FPS	304 FPS
4K
low	112 FPS	311 FPS
medium	103 FPS	278 FPS
high	92 FPS	251 FPS
ultra	75 FPS	225 FPS

Open EPYC 7551P Open Xeon Gold 6426Y

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 7551P	Xeon Gold 6426Y
1080p
low	620 FPS	949 FPS
medium	518 FPS	949 FPS
high	466 FPS	927 FPS
ultra	399 FPS	842 FPS
1440p
low	517 FPS	875 FPS
medium	432 FPS	777 FPS
high	378 FPS	708 FPS
ultra	325 FPS	637 FPS
4K
low	383 FPS	548 FPS
medium	308 FPS	451 FPS
high	270 FPS	391 FPS
ultra	220 FPS	321 FPS

Open EPYC 7551P Open Xeon Gold 6426Y

League of Legends

League of Legends

Valorant

Preset	EPYC 7551P	Xeon Gold 6426Y
1080p
low	834 FPS	949 FPS
medium	758 FPS	886 FPS
high	651 FPS	766 FPS
ultra	561 FPS	657 FPS
1440p
low	667 FPS	762 FPS
medium	584 FPS	668 FPS
high	500 FPS	574 FPS
ultra	420 FPS	493 FPS
4K
low	475 FPS	555 FPS
medium	427 FPS	494 FPS
high	375 FPS	435 FPS
ultra	320 FPS	371 FPS

Open EPYC 7551P Open Xeon Gold 6426Y

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 7551P and Xeon Gold 6426Y

EPYC 7551P

The EPYC 7551P is manufactured by AMD. It was released in 29 June 2017 (8 years ago). It is based on the Naples (2017−2018) architecture. It features 32 cores and 64 threads. Base frequency is 2 GHz, with boost up to 3 GHz. L3 cache: 64 MB (total). L2 cache: 512K (per core). Built on 14 nm process technology. Socket: TR4. Thermal design power (TDP): 180 Watt. Memory support: DDR4 Eight-channel. Passmark benchmark score: 38,111 points. Launch price was $2,100.

Xeon Gold 6426Y

The Xeon Gold 6426Y is manufactured by Intel. It was released in 10 January 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 16 cores and 32 threads. Base frequency is 2.5 GHz, with boost up to 4.1 GHz. L3 cache: 37.5 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 185 Watt. Memory support: DDR5-4800, DDR5-4400. Passmark benchmark score: 37,944 points. Launch price was $1,517.

⚡

Processing Power

The EPYC 7551P packs 32 cores / 64 threads, while the Xeon Gold 6426Y offers 16 cores / 32 threads — the EPYC 7551P has 16 more cores. Boost clocks reach 3 GHz on the EPYC 7551P versus 4.1 GHz on the Xeon Gold 6426Y — a 31% clock advantage for the Xeon Gold 6426Y (base: 2 GHz vs 2.5 GHz). The EPYC 7551P uses the Naples (2017−2018) architecture (14 nm), while the Xeon Gold 6426Y uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the EPYC 7551P scores 38,111 against the Xeon Gold 6426Y's 37,944 — a 0.4% lead for the EPYC 7551P. L3 cache: 64 MB (total) on the EPYC 7551P vs 37.5 MB on the Xeon Gold 6426Y.

Feature	EPYC 7551P	Xeon Gold 6426Y
Cores / Threads	32 / 64+100%	16 / 32
Boost Clock	3 GHz	4.1 GHz+37%
Base Clock	2 GHz	2.5 GHz+25%
L3 Cache	64 MB (total)+71%	37.5 MB
L2 Cache	512K (per core)	2 MB (per core)+300%
Process	14 nm	Intel 7 nm-50%
Architecture	Naples (2017−2018)	Sapphire Rapids (2023−2024)
PassMark	38,111	37,944

🧠

Memory & Platform

The EPYC 7551P uses the TR4 socket (PCIe 4.0), while the Xeon Gold 6426Y uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 2666 on the EPYC 7551P versus 4800 on the Xeon Gold 6426Y — the Xeon Gold 6426Y supports 57.2% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6426Y supports up to 4096 of RAM compared to 2048 — 66.7% more capacity for professional workloads. Both feature 8-channel memory with ECC support. PCIe lanes: 128 (EPYC 7551P) vs 80 (Xeon Gold 6426Y) — the EPYC 7551P offers 48 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP3 (EPYC 7551P) and LGA4677 (Xeon Gold 6426Y).

Feature	EPYC 7551P	Xeon Gold 6426Y
Socket	TR4	LGA4677
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	2666	4800+80%
Max RAM Capacity	2048	4096+100%
RAM Channels	8	8
ECC Support	Yes	Yes
PCIe Lanes	128+60%	80

🔧

Advanced Features

Neither processor supports overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: AMD-V, IOMMU (EPYC 7551P) vs VT-x, VT-d (Xeon Gold 6426Y). Direct competitor: EPYC 7551P rivals Xeon Platinum 8160; Xeon Gold 6426Y rivals EPYC 8124P.

Feature	EPYC 7551P	Xeon Gold 6426Y
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	No
AVX-512	Yes	Yes
Virtualization	AMD-V, IOMMU	VT-x, VT-d

💰

Value Analysis

The EPYC 7551P launched at $2100 MSRP, while the Xeon Gold 6426Y debuted at $2145. On MSRP ($2100 vs $2145), the EPYC 7551P is $45 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 7551P delivers 18.1 pts/$ vs 17.7 pts/$ for the Xeon Gold 6426Y — making the EPYC 7551P the 2.6% better value option.