EPYC 8534P vs EPYC 9255

AMD

EPYC 8534P

64 Cores128 Thrd200 WWMax: 3.1 GHz2023
EPYC family
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VS
AMD

EPYC 9255

24 Cores48 Thrd200 WWMax: 4.8 GHz2024
EPYC family
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EPYC 8534P vs EPYC 9255 Performance Spectrum

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 8534P vs EPYC 9255 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 8534P vs EPYC 9255: Pros, Cons & Final Verdict

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

EPYC 8534P

2023

Why buy it

    Trade-offs

    • Worse for gaming: lower average FPS than EPYC 9255 across 50 shared CPU benchmark tests.
    • Lower PassMark (71,900 vs 75,809).
    • Lower PassMark per dollar, at 13.0 vs 30.4 PassMark/$ ($5,529 MSRP vs $2,495 MSRP).

    EPYC 9255

    2024

    Why buy it

    • Better for gaming: +16.3% higher average FPS across 50 shared CPU benchmark tests.
    • Costs $3,034 less on MSRP ($2,495 MSRP vs $5,529 MSRP).
    • Delivers 133.7% more PassMark for each dollar spent, at 30.4 vs 13.0 PassMark/$ ($2,495 MSRP vs $5,529 MSRP).
    • 33.3% more PCIe lanes (128 vs 96) for storage and expansion-heavy builds.

    Trade-offs

    • Fewer obvious downsides in this matchup outside of normal market pricing swings.

    Quick Answers

    So, is EPYC 9255 better than EPYC 8534P?
    Yes. EPYC 9255 is the better all-around CPU here. It gives you a 16.3% average FPS lead across 50 shared CPU game tests in our data, 5.4% 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, EPYC 9255 is the better pick. According to our tests, it delivers 16.3% 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, EPYC 9255 is the stronger fit. You are getting 5.4% better PassMark, backed by 24 cores and 48 threads.
    Which one is the smarter buy today, not just the cheaper CPU?
    EPYC 9255 is the better buy right now. EPYC 9255 comes in $3,034 cheaper on MSRP at $2,495 MSRP versus $5,529 MSRP, and it still gives you a 16.3% average FPS lead across 50 shared CPU game tests in our data. It is also 133.7% better value on MSRP (30.4 vs 13.0 PassMark/$), 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 9255 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 24 cores / 48 threads instead of 64/128. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

    EPYC 8534P vs EPYC 9255 Technical Specifications

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

    AMD

    EPYC 8534P

    The EPYC 8534P 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 64 cores and 128 threads. Base frequency is 2.3 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: 71,900 points. Launch price was $4,950.

    AMD

    EPYC 9255

    The EPYC 9255 is manufactured by AMD. It was released in 10 October 2024 (1 year ago). It is based on the Turin (2024) architecture. It features 24 cores and 48 threads. Base frequency is 3.25 GHz, with boost up to 4.8 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: SP5. Thermal design power (TDP): 200 Watt. Memory support: DDR5. Passmark benchmark score: 75,809 points. Launch price was $2,495.

    Processing Power

    The EPYC 8534P packs 64 cores / 128 threads, while the EPYC 9255 offers 24 cores / 48 threads — the EPYC 8534P has 40 more cores. Boost clocks reach 3.1 GHz on the EPYC 8534P versus 4.8 GHz on the EPYC 9255 — a 43% clock advantage for the EPYC 9255 (base: 2.3 GHz vs 3.25 GHz). The EPYC 8534P uses the Siena (2023−2024) architecture (5 nm), while the EPYC 9255 uses Turin (2024) (4 nm). In PassMark, the EPYC 8534P scores 71,900 against the EPYC 9255's 75,809 — a 5.3% lead for the EPYC 9255. Both processors carry 128 MB (total) of L3 cache.

    FeatureEPYC 8534PEPYC 9255
    Cores / Threads
    64 / 128+167%
    24 / 48
    Boost Clock
    3.1 GHz
    4.8 GHz+55%
    Base Clock
    2.3 GHz
    3.25 GHz+41%
    L3 Cache
    128 MB (total)
    128 MB (total)
    L2 Cache
    1 MB (per core)
    1 MB (per core)
    Process
    5 nm
    4 nm-20%
    Architecture
    Siena (2023−2024)
    Turin (2024)
    PassMark
    71,900
    75,809+5%
    Geekbench 6 Single
    1,678
    Geekbench 6 Multi
    18,882
    🧠

    Memory & Platform

    The EPYC 8534P uses the SP6 socket (PCIe 4.0), while the EPYC 9255 uses SP5 (PCIe 5.0) — making them incompatible on the same motherboard. Both support up to DDR5-4800 memory speed. The EPYC 9255 supports up to 6144 GB of RAM compared to 1152 GB 433.3% more capacity for professional workloads. Memory channels: 6 (EPYC 8534P) vs 12 (EPYC 9255). PCIe lanes: 96 (EPYC 8534P) vs 128 (EPYC 9255) — the EPYC 9255 offers 32 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SP6 (EPYC 8534P) and SP5 (EPYC 9255).

    FeatureEPYC 8534PEPYC 9255
    Socket
    SP6
    SP5
    PCIe Generation
    PCIe 4.0
    PCIe 5.0+25%
    Max RAM Speed
    DDR5-4800
    4800
    Max RAM Capacity
    1152 GB
    6144 GB+433%
    RAM Channels
    6
    12+100%
    ECC Support
    Yes
    Yes
    PCIe Lanes
    96
    128+33%
    🔧

    Advanced Features

    Neither processor supports overclocking. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Virtualization support: AMD-V (EPYC 8534P) vs VT-x, VT-d, SEV-SNP (EPYC 9255). Primary use case: EPYC 8534P targets Cloud Server. Direct competitor: EPYC 8534P rivals Xeon Platinum 8452Y; EPYC 9255 rivals Xeon Platinum 8480+.

    FeatureEPYC 8534PEPYC 9255
    Integrated GPU
    No
    No
    IGPU Model
    None
    None
    Unlocked
    No
    No
    AVX-512
    Yes
    Yes
    Virtualization
    AMD-V
    VT-x, VT-d, SEV-SNP
    Target Use
    Cloud Server
    💰

    Value Analysis

    At launch, the EPYC 8534P was priced at $5529, while the EPYC 9255 came in at $2495. On launch pricing ($5529 vs $2495), EPYC 9255 was $3034 cheaper. In terms of value on MSRP (PassMark points per dollar), the EPYC 8534P delivers 13.0 pts/$ vs 30.4 pts/$ for the EPYC 9255 — making the EPYC 9255 the 80.1% better value option.

    FeatureEPYC 8534PEPYC 9255
    MSRP
    $5529
    $2495-55%
    Performance per Dollar
    13.0
    30.4+134%
    Release Date
    2023
    2024

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