EPYC 8434P vs Xeon w7-3555

CPU

GPU

EPYC 8434P

48 Cores96 Thrd200 WWMax: 3.1 GHz2023

Popular choices:

•••••••••

Xeon w7-3555

28 Cores56 Thrd325 WWMax: 4.8 GHz2024

Popular choices:

•••••••••

Performance Spectrum - CPU

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.

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 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 4 shared CPU benchmark tests.
❌Lower PassMark (66,490 vs 67,754).

Xeon w7-3555

2024

Why buy it

✅Better for gaming: +37.3% higher average FPS across 4 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.

EPYC 8434P

2023

Xeon w7-3555

2024

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.

Why buy it

✅Better for gaming: +37.3% higher average FPS across 4 shared CPU benchmark tests.
✅16.7% more PCIe lanes (112 vs 96) for storage and expansion-heavy builds.

Trade-offs

❌Worse for gaming: lower average FPS than Xeon w7-3555 across 4 shared CPU benchmark tests.
❌Lower PassMark (66,490 vs 67,754).

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 overall CPU here. You are getting a 37.3% average FPS lead across 4 shared CPU game tests in our data, 1.9% better PassMark, and the stronger long-term platform, which makes it the stronger all-around choice.

Which one is better for gaming?

If gaming is the priority, Xeon w7-3555 is the better pick here. According to our tests, it delivers 37.3% more average FPS across 4 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 better 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 makes more sense if price matters more than absolute performance. Xeon w7-3555 is 81.2% more expensive on MSRP at $2,749 MSRP versus $1,517 MSRP, and it gives you a 37.3% average FPS lead across 4 shared CPU game tests in our data. EPYC 8434P is also 77.8% better value on MSRP (43.8 vs 24.6 PassMark/$), which is why it is easier to justify for price-conscious builds on paper.

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

Xeon w7-3555 is the more future-proof choice 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 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 8434P Benchmark Check

Xeon w7-3555 Benchmark Check

Path of Exile 2

Preset	EPYC 8434P	Xeon w7-3555
1080p
low	159 FPS	311 FPS
medium	131 FPS	301 FPS
high	110 FPS	242 FPS
ultra	87 FPS	204 FPS
1440p
low	142 FPS	270 FPS
medium	114 FPS	233 FPS
high	90 FPS	175 FPS
ultra	72 FPS	154 FPS
4K
low	68 FPS	184 FPS
medium	58 FPS	157 FPS
high	45 FPS	118 FPS
ultra	37 FPS	106 FPS

Open EPYC 8434P Open Xeon w7-3555

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	EPYC 8434P	Xeon w7-3555
1080p
low	419 FPS	682 FPS
medium	369 FPS	593 FPS
high	300 FPS	482 FPS
ultra	236 FPS	427 FPS
1440p
low	344 FPS	551 FPS
medium	311 FPS	489 FPS
high	260 FPS	415 FPS
ultra	199 FPS	341 FPS
4K
low	212 FPS	324 FPS
medium	195 FPS	288 FPS
high	163 FPS	267 FPS
ultra	132 FPS	234 FPS

Open EPYC 8434P Open Xeon w7-3555

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	EPYC 8434P	Xeon w7-3555
1080p
low	860 FPS	1025 FPS
medium	786 FPS	1057 FPS
high	760 FPS	974 FPS
ultra	682 FPS	834 FPS
1440p
low	663 FPS	1001 FPS
medium	587 FPS	888 FPS
high	558 FPS	802 FPS
ultra	498 FPS	656 FPS
4K
low	435 FPS	600 FPS
medium	344 FPS	517 FPS
high	307 FPS	461 FPS
ultra	250 FPS	397 FPS

Open EPYC 8434P Open Xeon w7-3555

League of Legends

League of Legends

Valorant

Preset	EPYC 8434P	Xeon w7-3555
1080p
low	1023 FPS	1212 FPS
medium	913 FPS	1015 FPS
high	772 FPS	925 FPS
ultra	651 FPS	809 FPS
1440p
low	833 FPS	980 FPS
medium	712 FPS	845 FPS
high	598 FPS	736 FPS
ultra	492 FPS	635 FPS
4K
low	600 FPS	727 FPS
medium	524 FPS	632 FPS
high	451 FPS	557 FPS
ultra	376 FPS	437 FPS

Open EPYC 8434P Open Xeon w7-3555

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of EPYC 8434P and Xeon w7-3555

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. Maximum memory speed reaches 4800 on the EPYC 8434P versus DDR5-4800 on the Xeon w7-3555 — the EPYC 8434P supports 199.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon w7-3555 supports up to 4096 GB of RAM compared to 1152 — 112.2% 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+95900%	DDR5-4800
Max RAM Capacity	1152	4096 GB+372826922%
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

The EPYC 8434P launched at $1517 MSRP, while the Xeon w7-3555 debuted at $2749. On MSRP ($1517 vs $2749), the EPYC 8434P is $1232 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 8434P delivers 43.8 pts/$ vs 24.6 pts/$ for the Xeon w7-3555 — making the EPYC 8434P the 56% better value option.