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Ryzen 9 5900X vs Ryzen 9 PRO 7945

CPUCPUGPUGPU
AMD

Ryzen 9 5900X

12 Cores24 Thrd105 WWMax: 4.8 GHz2020
Ryzen family
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Buy on Amazon
VS
AMD

Ryzen 9 PRO 7945

12 Cores24 Thrd65 WWMax: 5.4 GHz2023
Similar parts
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Buy on Amazon

Ryzen 9 5900X vs Ryzen 9 PRO 7945 Performance Spectrum

Ryzen 9 5900X
12 / 24
38,955
0.0%
brand logoRyzen 7 PRO 250
brand logoRyzen 5 7645HX
brand logoRyzen 9 8945H
brand logoRyzen AI 9 HX 375
brand logoRyzen 9 7945HX
brand logoRyzen 9 9950X3D
brand logoRyzen Threadripper 9960X
brand logoRyzen Threadripper PRO 9975WX
Ryzen 9 PRO 7945
12 / 24
46,828
+20.2%
brand logoRyzen 5 7645HX
brand logoRyzen 9 PRO 3900
brand logoRyzen 7 7700X
brand logoRyzen Threadripper PRO 5945WX
brand logoRyzen 9 9955HX3D
brand logoRyzen Threadripper 3990X
brand logoRyzen Threadripper 9960X
brand logoRyzen Threadripper PRO 9975WX

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 9 5900X 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.

Path of Exile 2

Path of Exile 2

1080P
Ryzen 9 5900X
low323 FPS
medium291 FPS
high243 FPS
ultra193 FPS
1080P
Ryzen 9 PRO 7945
low269 FPS
medium244 FPS
high209 FPS
ultra183 FPS
Counter-Strike 2

Counter-Strike 2

1080P
Ryzen 9 5900X
low772 FPS
medium647 FPS
high508 FPS
ultra450 FPS
1080P
Ryzen 9 PRO 7945
low660 FPS
medium567 FPS
high426 FPS
ultra368 FPS
League of Legends

League of Legends

1080P
Ryzen 9 5900X
low832 FPS
medium645 FPS
high558 FPS
ultra459 FPS
1080P
Ryzen 9 PRO 7945
low1025 FPS
medium1118 FPS
high1041 FPS
ultra875 FPS
Valorant

Valorant

1080P
Ryzen 9 5900X
low974 FPS
medium974 FPS
high934 FPS
ultra826 FPS
1080P
Ryzen 9 PRO 7945
low1171 FPS
medium1015 FPS
high981 FPS
ultra854 FPS
Among Us

Among Us

1080P
Ryzen 9 5900X
low60 FPS
medium60 FPS
high60 FPS
ultra60 FPS
1080P
Ryzen 9 PRO 7945
low60 FPS
medium60 FPS
high60 FPS
ultra60 FPS
Apex Legends

Apex Legends

1080P
Ryzen 9 5900X
low300 FPS
medium300 FPS
high300 FPS
ultra300 FPS
1080P
Ryzen 9 PRO 7945
low300 FPS
medium300 FPS
high300 FPS
ultra300 FPS
ARC Raiders

ARC Raiders

1080P
Ryzen 9 5900X
low309 FPS
medium238 FPS
high217 FPS
ultra194 FPS
1080P
Ryzen 9 PRO 7945
low304 FPS
medium232 FPS
high200 FPS
ultra176 FPS
Baldur's Gate 3

Baldur's Gate 3

1080P
Ryzen 9 5900X
low336 FPS
medium297 FPS
high235 FPS
ultra196 FPS
1080P
Ryzen 9 PRO 7945
low282 FPS
medium249 FPS
high193 FPS
ultra157 FPS
Call of Duty: Black Ops 6

Call of Duty: Black Ops 6

1080P
Ryzen 9 5900X
low355 FPS
medium306 FPS
high265 FPS
ultra225 FPS
1080P
Ryzen 9 PRO 7945
low387 FPS
medium347 FPS
high300 FPS
ultra256 FPS
Call of Duty: Warzone

Call of Duty: Warzone

1080P
Ryzen 9 5900X
low259 FPS
medium237 FPS
high200 FPS
ultra188 FPS
1080P
Ryzen 9 PRO 7945
low275 FPS
medium256 FPS
high217 FPS
ultra203 FPS
Check FPS with Custom Builds

Ryzen 9 5900X 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 9 5900X

2020

Why buy it

    Trade-offs

    • ❌Lower Geekbench single-core performance for gaming (2,174 vs 2,206).
    • ❌Lower Cinebench R23 multi-core (21,000 vs 28,905).
    • ❌Lower PassMark per dollar, at 71.0 vs 114.5 PassMark/$ ($549 MSRP vs $409 MSRP).
    • ❌61.5% higher power demand at 105W vs 65W.
    • ❌Older platform position on AM4 with DDR4, while Ryzen 9 PRO 7945 moves to AM5 and DDR5.

    Ryzen 9 PRO 7945

    2023

    Why buy it

    • ✅+1.5% higher Geekbench single-core performance for gaming and desktop responsiveness.
    • ✅Costs $140 less on MSRP ($409 MSRP vs $549 MSRP).
    • ✅Delivers 61.4% more PassMark for each dollar spent, at 114.5 vs 71.0 PassMark/$ ($409 MSRP vs $549 MSRP).
    • ✅Draws 65W instead of 105W, a 40W reduction.
    • ✅Newer platform on AM5 with DDR5 support instead of AM4 and DDR4.

    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 9 5900X?
    Yes. Ryzen 9 PRO 7945 is the better all-around CPU here. It gives you a 1.2% average FPS lead across 50 shared CPU game tests in our data, 37.6% better Cinebench R23 multi-core, 20.2% higher 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 1.2% 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 37.6% better Cinebench R23 multi-core, backed by 12 cores and 24 threads.
    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 $140 cheaper on MSRP at $409 MSRP versus $549 MSRP, and it still gives you a 1.2% average FPS lead across 50 shared CPU game tests in our data. It is also 61.4% better value on MSRP (114.5 vs 71.0 PassMark/$), 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 9 5900X can still make sense as a platform-matched option because it avoids a motherboard and RAM swap, but on MSRP alone you would want to find it meaningfully cheaper in real-world listings before that path becomes easy to justify.
    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, and more multi-core headroom with 12 cores / 24 threads instead of 12/24. That gives you a healthier platform runway for motherboard, RAM, and later CPU upgrades.

    Ryzen 9 5900X vs Ryzen 9 PRO 7945 Technical Specifications

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

    AMD

    Ryzen 9 5900X

    The Ryzen 9 5900X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen3) (2020−2022) architecture. It features 12 cores and 24 threads. Base frequency is 3.7 GHz, with boost up to 4.8 GHz. L3 cache: 64 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4-3200. Passmark benchmark score: 38,955 points. Launch price was $549.

    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 (2023−2025) 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

    Both the Ryzen 9 5900X and Ryzen 9 PRO 7945 share an identical 12-core/24-thread configuration. Boost clocks reach 4.8 GHz on the Ryzen 9 5900X versus 5.4 GHz on the Ryzen 9 PRO 7945 — a 11.8% clock advantage for the Ryzen 9 PRO 7945 (base: 3.7 GHz vs 3.7 GHz). The Ryzen 9 5900X uses the Vermeer (Zen3) (2020−2022) architecture (7 nm, 12 nm), while the Ryzen 9 PRO 7945 uses Raphael (2023−2025) (5 nm). In PassMark, the Ryzen 9 5900X scores 38,955 against the Ryzen 9 PRO 7945's 46,828 — a 18.4% lead for the Ryzen 9 PRO 7945. Cinebench R23 multi-core: 21,000 vs 28,905 (31.7% advantage for the Ryzen 9 PRO 7945). Geekbench 6 single-core — the metric most relevant to gaming — records 2,174 vs 2,206, a 1.5% lead for the Ryzen 9 PRO 7945 that directly translates to higher frame rates. Multi-core Geekbench: 11,888 vs 16,832 (34.4% advantage for the Ryzen 9 PRO 7945). L3 cache: 64 MB on the Ryzen 9 5900X vs 64 MB (total) on the Ryzen 9 PRO 7945.

    FeatureRyzen 9 5900XRyzen 9 PRO 7945
    Cores / Threads
    12 / 24
    12 / 24
    Boost Clock
    4.8 GHz
    5.4 GHz+13%
    Base Clock
    3.7 GHz
    3.7 GHz
    L3 Cache
    64 MB
    64 MB (total)
    L2 Cache
    512K (per core)+51100%
    1 MB (per core)
    Process
    7 nm, 12 nm
    5 nm-29%
    Architecture
    Vermeer (Zen3) (2020−2022)
    Raphael (2023−2025)
    PassMark
    38,955
    46,828+20%
    Cinebench R23 Multi
    21,000
    28,905+38%
    Geekbench 6 Single
    2,174
    2,206+1%
    Geekbench 6 Multi
    11,888
    16,832+42%
    🧠

    Memory & Platform

    The Ryzen 9 5900X uses the AM4 socket (PCIe 4.0), while the Ryzen 9 PRO 7945 uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-3200 on the Ryzen 9 5900X versus DDR5-5200 on the Ryzen 9 PRO 7945 — 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 9 5900X) vs 28 (Ryzen 9 PRO 7945) — the Ryzen 9 PRO 7945 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A320,B350,X370,B450,X470,B550,X570 (Ryzen 9 5900X) and AMD X670E,AMD X670,AMD B650E,AMD B650,AMD A620 (Ryzen 9 PRO 7945).

    FeatureRyzen 9 5900XRyzen 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%
    🔧

    Advanced Features

    Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 9 PRO 7945 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: AMD-V (Ryzen 9 5900X) vs true (Ryzen 9 PRO 7945). The Ryzen 9 PRO 7945 includes integrated graphics (Radeon Graphics), while the Ryzen 9 5900X requires a dedicated GPU. Primary use case: Ryzen 9 5900X targets Workstation. Direct competitor: Ryzen 9 5900X rivals Core i9-12900K; Ryzen 9 PRO 7945 rivals Core i9-13900.

    FeatureRyzen 9 5900XRyzen 9 PRO 7945
    Integrated GPU
    No
    Yes
    IGPU Model
    —
    Radeon Graphics
    Unlocked
    Yes
    Yes
    AVX-512
    No
    Yes
    Virtualization
    AMD-V
    true
    Target Use
    Workstation
    —
    💰

    Value Analysis

    At launch, the Ryzen 9 5900X was priced at $549, while the Ryzen 9 PRO 7945 came in at $409. On launch pricing ($549 vs $409), Ryzen 9 PRO 7945 was $140 cheaper. In terms of value on MSRP (PassMark points per dollar), the Ryzen 9 5900X delivers 71.0 pts/$ vs 114.5 pts/$ for the Ryzen 9 PRO 7945 — making the Ryzen 9 PRO 7945 the 47% better value option.

    FeatureRyzen 9 5900XRyzen 9 PRO 7945
    MSRP
    $549
    $409-26%
    Performance per Dollar
    71.0
    114.5+61%
    Release Date
    2020
    2023
    Search Ryzen 9 5900X on AmazonSearch Ryzen 9 PRO 7945 on Amazon

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