EPYC 8434P vs Xeon w7-3555

EPYC 8434P vs Xeon w7-3555 Performance Spectrum

EPYC 8434P

48 / 96

66,490

0.0%

Ryzen Threadripper 3990X

Ryzen Threadripper 9960X

Ryzen Threadripper PRO 9975WX

Ryzen Threadripper PRO 7985WX

Xeon w7-3555

28 / 56

67,754

+1.9%

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 8434P vs Xeon w7-3555 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 8434P vs Xeon w7-3555: Pros, Cons & Final Verdict

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

EPYC 8434P

2023

Why buy it

✅+70.7% larger total L3 cache (128 MB vs 75 MB).
✅Costs $1,232 less on MSRP ($1,517 MSRP vs $2,749 MSRP).
✅Delivers 77.8% more PassMark for each dollar spent, at 43.8 vs 24.6 PassMark/$ ($1,517 MSRP vs $2,749 MSRP).
✅Draws 200W instead of 325W, a 125W reduction.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w7-3555 across 50 shared CPU benchmark tests.
❌Lower PassMark (66,490 vs 67,754).

Xeon w7-3555

2024

Why buy it

✅Better for gaming: +17.6% higher average FPS across 50 shared CPU benchmark tests.
✅16.7% more PCIe lanes (112 vs 96) for storage and expansion-heavy builds.

Trade-offs

❌Smaller total L3 cache (75 MB vs 128 MB).
❌Lower PassMark per dollar, at 24.6 vs 43.8 PassMark/$ ($2,749 MSRP vs $1,517 MSRP).
❌62.5% higher power demand at 325W vs 200W.

Quick Answers

So, is Xeon w7-3555 better than EPYC 8434P?

Yes. Xeon w7-3555 is the better all-around CPU here. It gives you a 17.6% average FPS lead across 50 shared CPU game tests in our data, 1.9% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Xeon w7-3555 is the better pick. According to our tests, it delivers 17.6% 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, Xeon w7-3555 is the stronger fit. You are getting 1.9% better PassMark, backed by 28 cores and 56 threads.

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

Xeon w7-3555 is still the faster CPU overall, but EPYC 8434P is easier to justify if budget matters more than peak performance. Xeon w7-3555 comes in 81.2% more expensive on MSRP at $2,749 MSRP versus $1,517 MSRP, and it still gives you a 17.6% average FPS lead across 50 shared CPU game tests in our data. EPYC 8434P is also 77.8% better value on MSRP (43.8 vs 24.6 PassMark/$), which is why it can still make sense for tighter-budget builds on paper.

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

Xeon w7-3555 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2024 vs 2023) and more multi-core headroom with 28 cores / 56 threads instead of 48/96. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

EPYC 8434P vs Xeon w7-3555 Technical Specifications

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

EPYC 8434P

The EPYC 8434P is manufactured by AMD. It was released in 18 September 2023 (2 years ago). It is based on the Siena (2023−2024) architecture. It features 48 cores and 96 threads. Base frequency is 2.5 GHz, with boost up to 3.1 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: SP6. Thermal design power (TDP): 200 Watt. Memory support: DDR5. Passmark benchmark score: 66,490 points. Launch price was $2,700.

Xeon w7-3555

The Xeon w7-3555 is manufactured by Intel. It was released in 24 August 2024 (1 year ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 28 cores and 56 threads. Base frequency is 2.7 GHz, with boost up to 4.8 GHz. L3 cache: 75 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 325 Watt. Memory support: DDR5-4800. Passmark benchmark score: 67,754 points. Launch price was $2,339.

⚡

Processing Power

The EPYC 8434P packs 48 cores / 96 threads, while the Xeon w7-3555 offers 28 cores / 56 threads — the EPYC 8434P has 20 more cores. Boost clocks reach 3.1 GHz on the EPYC 8434P versus 4.8 GHz on the Xeon w7-3555 — a 43% clock advantage for the Xeon w7-3555 (base: 2.5 GHz vs 2.7 GHz). The EPYC 8434P uses the Siena (2023−2024) architecture (5 nm), while the Xeon w7-3555 uses Sapphire Rapids (2023−2024) (Intel 7 nm). In PassMark, the EPYC 8434P scores 66,490 against the Xeon w7-3555's 67,754 — a 1.9% lead for the Xeon w7-3555. L3 cache: 128 MB (total) on the EPYC 8434P vs 75 MB on the Xeon w7-3555.

Feature	EPYC 8434P	Xeon w7-3555
Cores / Threads	48 / 96+71%	28 / 56
Boost Clock	3.1 GHz	4.8 GHz+55%
Base Clock	2.5 GHz	2.7 GHz+8%
L3 Cache	128 MB (total)+71%	75 MB
L2 Cache	1 MB (per core)	2 MB (per core)+100%
Process	5 nm-29%	Intel 7 nm
Architecture	Siena (2023−2024)	Sapphire Rapids (2023−2024)
PassMark	66,490	67,754+2%
Geekbench 6 Single	—	2,300
Geekbench 6 Multi	—	17,120

🧠

Memory & Platform

The EPYC 8434P uses the SP6 socket (PCIe 4.0), while the Xeon w7-3555 uses LGA4677 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to 4800 memory speed. The Xeon w7-3555 supports up to 4096 GB of RAM compared to 1152 GB — 255.6% more capacity for professional workloads. Memory channels: 6 (EPYC 8434P) vs 8 (Xeon w7-3555). PCIe lanes: 96 (EPYC 8434P) vs 112 (Xeon w7-3555) — the Xeon w7-3555 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP6 (EPYC 8434P) and W790 (Xeon w7-3555).

Feature	EPYC 8434P	Xeon w7-3555
Socket	SP6	LGA4677
PCIe Generation	PCIe 4.0	PCIe 5.0+25%
Max RAM Speed	4800	DDR5-4800
Max RAM Capacity	1152 GB	4096 GB+256%
RAM Channels	6	8+33%
ECC Support	Yes	Yes
PCIe Lanes	96	112+17%

🔧

Advanced Features

Only the Xeon w7-3555 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 (EPYC 8434P) vs true (Xeon w7-3555). Direct competitor: EPYC 8434P rivals Xeon Platinum 8452Y; Xeon w7-3555 rivals Threadripper PRO 7965WX.

Feature	EPYC 8434P	Xeon w7-3555
Integrated GPU	No	No
IGPU Model	None	None
Unlocked	No	Yes
AVX-512	Yes	Yes
Virtualization	VT-x, VT-d	true

💰

Value Analysis

At launch, the EPYC 8434P was priced at $1517, while the Xeon w7-3555 came in at $2749. On launch pricing ($1517 vs $2749), EPYC 8434P was $1232 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 8434P delivers 43.8 pts/$ vs 24.6 pts/$ for the Xeon w7-3555 — making the EPYC 8434P the 56% better value option.

Feature	EPYC 8434P	Xeon w7-3555
MSRP	$1517-45%	$2749
Performance per Dollar	43.8+78%	24.6
Release Date	2023	2024

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