Ryzen 7 5800X vs Ryzen 9 PRO 7945

AMD

Ryzen 7 5800X

8 Cores16 Thrd105 WWMax: 4.7 GHz2020
VS
AMD

Ryzen 9 PRO 7945

12 Cores24 Thrd65 WWMax: 5.4 GHz2023

Ryzen 7 5800X vs Ryzen 9 PRO 7945 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.

Ryzen 7 5800X vs Ryzen 9 PRO 7945 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.

Ryzen 7 5800X vs Ryzen 9 PRO 7945: Pros, Cons & Final Verdict

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

Ryzen 7 5800X

2020

Why buy it

    Trade-offs

    • ❌Worse for gaming: lower average FPS than Ryzen 9 PRO 7945 across 50 shared CPU benchmark tests.
    • ❌Lower PassMark (27,712 vs 46,828).
    • ❌Smaller total L3 cache (32 MB vs 64 MB).
    • ❌Lower PassMark per dollar, at 61.7 vs 114.5 PassMark/$ ($449 MSRP vs $409 MSRP).
    • ❌61.5% higher power demand at 105W vs 65W.

    Ryzen 9 PRO 7945

    2023

    Why buy it

    • βœ…Better for gaming: +17.9% higher average FPS across 50 shared CPU benchmark tests.
    • βœ…+100% larger total L3 cache (64 MB vs 32 MB).
    • βœ…Costs $40 less on MSRP ($409 MSRP vs $449 MSRP).
    • βœ…Delivers 85.5% more PassMark for each dollar spent, at 114.5 vs 61.7 PassMark/$ ($409 MSRP vs $449 MSRP).
    • βœ…Draws 65W instead of 105W, a 40W reduction.

    Trade-offs

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

    Quick Answers

    So, is Ryzen 9 PRO 7945 better than Ryzen 7 5800X?
    Yes. Ryzen 9 PRO 7945 is the better all-around CPU here. It gives you a 17.9% average FPS lead across 50 shared CPU game tests in our data, 69% 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, Ryzen 9 PRO 7945 is the better pick. According to our tests, it delivers 17.9% 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, Ryzen 9 PRO 7945 is the stronger fit. You are getting 69% better PassMark, backed by 12 cores and 24 threads. It also has the larger cache pool with 100% larger total L3 cache (64 MB vs 32 MB).
    Which one is the smarter buy today, not just the cheaper CPU?
    Ryzen 9 PRO 7945 is the better buy right now. Ryzen 9 PRO 7945 comes in $40 cheaper on MSRP at $409 MSRP versus $449 MSRP, and it still gives you a 17.9% average FPS lead across 50 shared CPU game tests in our data. It is also 85.5% better value on MSRP (114.5 vs 61.7 PassMark/$), so you are getting the faster CPU without taking a value hit on paper. That said, if you already own a compatible AM4 + DDR4 setup, Ryzen 7 5800X can still make sense as a platform-matched option because it avoids a motherboard and RAM swap.
    Which one is more future-proof for 2026 and beyond?
    Ryzen 9 PRO 7945 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2023 vs 2020), a healthier platform with AM5 and DDR5 instead of AM4, 100% larger total L3 cache (64 MB vs 32 MB), and more multi-core headroom with 12 cores / 24 threads instead of 8/16. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

    Ryzen 7 5800X vs Ryzen 9 PRO 7945 Technical Specifications

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

    AMD

    Ryzen 7 5800X

    The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020βˆ’2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 27,712 points. Launch price was $449.

    AMD

    Ryzen 9 PRO 7945

    The Ryzen 9 PRO 7945 is manufactured by AMD. It was released in 13 June 2023 (2 years ago). It is based on the Raphael (2023βˆ’2025) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 5.4 GHz. L3 cache: 64 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 46,828 points. Launch price was $499.

    ⚑

    Processing Power

    The Ryzen 7 5800X packs 8 cores / 16 threads, while the Ryzen 9 PRO 7945 offers 12 cores / 24 threads β€” the Ryzen 9 PRO 7945 has 4 more cores. Boost clocks reach 4.7 GHz on the Ryzen 7 5800X versus 5.4 GHz on the Ryzen 9 PRO 7945 β€” a 13.9% clock advantage for the Ryzen 9 PRO 7945 (base: 3.8 GHz vs 3.7 GHz). The Ryzen 7 5800X uses the Vermeer (Zen 3) (2020βˆ’2022) architecture (7 nm, 12 nm), while the Ryzen 9 PRO 7945 uses Raphael (2023βˆ’2025) (5 nm). In PassMark, the Ryzen 7 5800X scores 27,712 against the Ryzen 9 PRO 7945's 46,828 β€” a 51.3% lead for the Ryzen 9 PRO 7945. L3 cache: 32 MB on the Ryzen 7 5800X vs 64 MB (total) on the Ryzen 9 PRO 7945.

    FeatureRyzen 7 5800XRyzen 9 PRO 7945
    Cores / Threads
    8 / 16
    12 / 24+50%
    Boost Clock
    4.7 GHz
    5.4 GHz+15%
    Base Clock
    3.8 GHz+3%
    3.7 GHz
    L3 Cache
    32 MB
    64 MB (total)+100%
    L2 Cache
    512K (per core)+51100%
    1 MB (per core)
    Process
    7 nm, 12 nm
    5 nm-29%
    Architecture
    Vermeer (Zen 3) (2020βˆ’2022)
    Raphael (2023βˆ’2025)
    PassMark
    27,712
    46,828+69%
    Cinebench R23 Multi
    β€”
    28,905
    Geekbench 6 Single
    β€”
    2,206
    Geekbench 6 Multi
    β€”
    16,832
    🧠

    Memory & Platform

    The Ryzen 7 5800X uses the AM4 socket (PCIe 4.0), while the Ryzen 9 PRO 7945 uses AM5 (PCIe 5.0) β€” making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 7 5800X versus DDR5-5200 on the Ryzen 9 PRO 7945 β€” the Ryzen 9 PRO 7945 supports 62.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 128 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 24 (Ryzen 7 5800X) vs 28 (Ryzen 9 PRO 7945) β€” the Ryzen 9 PRO 7945 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 500 series,AMD 400 series,AMD 300 series (Ryzen 7 5800X) and AMD X670E,AMD X670,AMD B650E,AMD B650,AMD A620 (Ryzen 9 PRO 7945).

    FeatureRyzen 7 5800XRyzen 9 PRO 7945
    Socket
    AM4
    AM5
    PCIe Generation
    PCIe 4.0
    PCIe 5.0+25%
    Max RAM Speed
    DDR4-3200
    DDR5-5200+63%
    Max RAM Capacity
    128 GB
    128 GB
    RAM Channels
    2
    2
    ECC Support
    Yes
    Yes
    PCIe Lanes
    24
    28+17%
    πŸ”§

    Advanced Features

    Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 9 PRO 7945 supports AVX-512 instructions β€” important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 7 5800X) vs true (Ryzen 9 PRO 7945). The Ryzen 9 PRO 7945 includes integrated graphics (Radeon Graphics), while the Ryzen 7 5800X requires a dedicated GPU. Primary use case: Ryzen 7 5800X targets Desktop. Direct competitor: Ryzen 9 PRO 7945 rivals Core i9-13900.

    FeatureRyzen 7 5800XRyzen 9 PRO 7945
    Integrated GPU
    No
    Yes
    IGPU Model
    β€”
    Radeon Graphics
    Unlocked
    Yes
    Yes
    AVX-512
    No
    Yes
    Virtualization
    AMD-V
    true
    Target Use
    Desktop
    β€”
    πŸ’°

    Value Analysis

    At launch, the Ryzen 7 5800X was priced at $449, while the Ryzen 9 PRO 7945 came in at $409. On launch pricing ($449 vs $409), Ryzen 9 PRO 7945 was $40 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 7 5800X delivers 61.7 pts/$ vs 114.5 pts/$ for the Ryzen 9 PRO 7945 β€” making the Ryzen 9 PRO 7945 the 59.9% better value option.

    FeatureRyzen 7 5800XRyzen 9 PRO 7945
    MSRP
    $449
    $409-9%
    Performance per Dollar
    61.7
    114.5+86%
    Release Date
    2020
    2023

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