EPYC 4345P vs Xeon Platinum 8280

CPU

GPU

EPYC 4345P

8 Cores16 Thrd65 WWMax: 5.5 GHz2025

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Xeon Platinum 8280

28 Cores56 Thrd205 WWMax: 4 GHz2019

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EPYC 4345P vs Xeon Platinum 8280 Performance Spectrum

EPYC 4345P

8 / 16

36,006

0.0%

Ryzen 7 PRO 6860Z

Ryzen AI 7 PRO 350

Ryzen 7 5800XT

Ryzen Threadripper 2990WX

Ryzen AI Max+ PRO 395

Ryzen Threadripper PRO 9955WX

Ryzen Threadripper PRO 3995WX

Ryzen Threadripper 7970X

Xeon Platinum 8280

28 / 56

36,830

+2.3%

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 4345P vs Xeon Platinum 8280 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 4345P vs Xeon Platinum 8280: Pros, Cons & Final Verdict

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

EPYC 4345P

2025

Why buy it

✅Better for gaming: +15.8% higher average FPS across 50 shared CPU benchmark tests.
✅Costs $9,680 less on MSRP ($329 MSRP vs $10,009 MSRP).
✅Delivers 2874.2% more PassMark for each dollar spent, at 109.4 vs 3.7 PassMark/$ ($329 MSRP vs $10,009 MSRP).
✅Draws 65W instead of 205W, a 140W reduction.
✅Newer platform on AM5 with DDR5 support instead of LGA3647 and DDR4.

Trade-offs

❌Lower PassMark (36,006 vs 36,830).
❌Smaller total L3 cache (32 MB vs 39 MB).

Xeon Platinum 8280

2019

Why buy it

✅+2.3% higher PassMark.
✅+20.3% larger total L3 cache (39 MB vs 32 MB).
✅71.4% more PCIe lanes (48 vs 28) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than EPYC 4345P across 50 shared CPU benchmark tests.
❌Lower PassMark per dollar, at 3.7 vs 109.4 PassMark/$ ($10,009 MSRP vs $329 MSRP).
❌215.4% higher power demand at 205W vs 65W.
❌Older platform position on LGA3647 with DDR4, while EPYC 4345P moves to AM5 and DDR5.
❌No integrated graphics, while EPYC 4345P can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is EPYC 4345P better than Xeon Platinum 8280?

It depends on what you want from the system. For gaming, EPYC 4345P is ahead with a 15.8% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Xeon Platinum 8280 pulls ahead with 2.3% better PassMark. Xeon Platinum 8280 also has the bigger cache pool with 20.3% larger total L3 cache (39 MB vs 32 MB).

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

For streaming, content creation, and heavier multitasking, Xeon Platinum 8280 is the stronger fit. You are getting 2.3% better PassMark, backed by 28 cores and 56 threads. It also has the larger cache pool with 20.3% larger total L3 cache (39 MB vs 32 MB).

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

EPYC 4345P is the better buy right now. EPYC 4345P comes in $9,680 cheaper on MSRP at $329 MSRP versus $10,009 MSRP, and it still gives you a 15.8% average FPS lead across 50 shared CPU game tests in our data. The compromise is that Xeon Platinum 8280 is still stronger for heavier multi-core work with 2.3% better PassMark. It is also 2874.2% better value on MSRP (109.4 vs 3.7 PassMark/$), 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 4345P makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2025 vs 2019) and a healthier platform with AM5 and DDR5 instead of LGA3647. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 4345P vs Xeon Platinum 8280 Technical Specifications

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

EPYC 4345P

The EPYC 4345P 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 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 5.5 GHz. L3 cache: 32 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: 36,006 points. Launch price was $329.

Xeon Platinum 8280

The Xeon Platinum 8280 is manufactured by Intel. It was released in 11 December 2018 (6 years ago). It is based on the Cascade Lake-SP (2018) architecture. It features 28 cores and 56 threads. Base frequency is 2.7 GHz, with boost up to 4 GHz. L3 cache: 38.5 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 205 Watt. Memory support: DDR4-2933. Passmark benchmark score: 36,830 points. Launch price was $10,009.

⚡

Processing Power

The EPYC 4345P packs 8 cores / 16 threads, while the Xeon Platinum 8280 offers 28 cores / 56 threads — the Xeon Platinum 8280 has 20 more cores. Boost clocks reach 5.5 GHz on the EPYC 4345P versus 4 GHz on the Xeon Platinum 8280 — a 31.6% clock advantage for the EPYC 4345P (base: 3.8 GHz vs 2.7 GHz). The EPYC 4345P uses the Grado (2025) architecture (4 nm), while the Xeon Platinum 8280 uses Cascade Lake-SP (2018) (14 nm). In PassMark, the EPYC 4345P scores 36,006 against the Xeon Platinum 8280's 36,830 — a 2.3% lead for the Xeon Platinum 8280. L3 cache: 32 MB (total) on the EPYC 4345P vs 38.5 MB (total) on the Xeon Platinum 8280.

Feature	EPYC 4345P	Xeon Platinum 8280
Cores / Threads	8 / 16	28 / 56+250%
Boost Clock	5.5 GHz+38%	4 GHz
Base Clock	3.8 GHz+41%	2.7 GHz
L3 Cache	32 MB (total)	38.5 MB (total)+20%
L2 Cache	1 MB (per core)	1 MB (per core)
Process	4 nm-71%	14 nm
Architecture	Grado (2025)	Cascade Lake-SP (2018)
PassMark	36,006	36,830+2%

🧠

Memory & Platform

The EPYC 4345P uses the AM5 socket (PCIe 4.0), while the Xeon Platinum 8280 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 5600 on the EPYC 4345P versus 2933 on the Xeon Platinum 8280 — the EPYC 4345P supports 90.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Platinum 8280 supports up to 1536 of RAM compared to 128 — 1100% more capacity for professional workloads. Memory channels: 2 (EPYC 4345P) vs 6 (Xeon Platinum 8280). PCIe lanes: 28 (EPYC 4345P) vs 48 (Xeon Platinum 8280) — the Xeon Platinum 8280 offers 20 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AM5 (EPYC 4345P) and LGA3647 (Xeon Platinum 8280).

Feature	EPYC 4345P	Xeon Platinum 8280
Socket	AM5	LGA3647
PCIe Generation	PCIe 4.0+33%	PCIe 3.0
Max RAM Speed	5600+91%	2933
Max RAM Capacity	128	1536+1100%
RAM Channels	2	6+200%
ECC Support	Yes	Yes
PCIe Lanes	28	48+71%

🔧

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 4345P) vs VT-x, VT-d (Xeon Platinum 8280). The EPYC 4345P includes integrated graphics (AMD Radeon Graphics), while the Xeon Platinum 8280 requires a dedicated GPU. Direct competitor: EPYC 4345P rivals Xeon E-2488; Xeon Platinum 8280 rivals EPYC 7702.

Feature	EPYC 4345P	Xeon Platinum 8280
Integrated GPU	Yes	No
IGPU Model	AMD Radeon Graphics	None
Unlocked	No	No
AVX-512	Yes	Yes
Virtualization	AMD-V, IOMMU	VT-x, VT-d

💰

Value Analysis

At launch, the EPYC 4345P was priced at $329, while the Xeon Platinum 8280 came in at $10009. On launch pricing ($329 vs $10009), EPYC 4345P was $9680 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 4345P delivers 109.4 pts/$ vs 3.7 pts/$ for the Xeon Platinum 8280 — making the EPYC 4345P the 187% better value option.

Feature	EPYC 4345P	Xeon Platinum 8280
MSRP	$329-97%	$10009
Performance per Dollar	109.4+2857%	3.7
Release Date	2025	2019

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