Chipversus Index
Jump to Section

Mobile Pentium 4 2.40 vs Mobile Sempron SI-42

CPUCPUGPUGPU
Intel

Mobile Pentium 4 2.40

1 Cores2 Thrd60 WWMax: 2.4 GHz2003
Similar parts
·······
Buy on Amazon
VS
AMD

Mobile Sempron SI-42

1 Cores1 Thrd512 WWMax: 2.1 GHz2009
Similar parts
·······
Buy on Amazon

Mobile Pentium 4 2.40 vs Mobile Sempron SI-42 Performance Spectrum

Mobile Pentium 4 2.40
1 / 2
345
+3.9%
brand logoAtom Z510
brand logoPentium III 1400S
brand logoAtom N270
brand logoCeleron 2.20
brand logoCore Ultra 7 268V
brand logoXeon W-3335
brand logoXeon w7-3545
brand logoXeon w9-3575X
Mobile Sempron SI-42
1 / 1
332
0.0%
brand logoAthlon XP 1700+
brand logoAthlon XP 2000+
brand logoAthlon XP 2200+
brand logoRyzen 5 5600G
brand logoRyzen Threadripper PRO 3955WX
brand logoRyzen Threadripper PRO 7955WX
brand logoRyzen Threadripper 3990X
brand logoRyzen Threadripper 7970X

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.

Mobile Pentium 4 2.40 vs Mobile Sempron SI-42 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
Mobile Pentium 4 2.40
low9 FPS
medium9 FPS
high9 FPS
ultra9 FPS
1080P
Mobile Sempron SI-42
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Counter-Strike 2

Counter-Strike 2

1080P
Mobile Pentium 4 2.40
low9 FPS
medium9 FPS
high9 FPS
ultra9 FPS
1080P
Mobile Sempron SI-42
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
League of Legends

League of Legends

1080P
Mobile Pentium 4 2.40
low9 FPS
medium9 FPS
high9 FPS
ultra9 FPS
1080P
Mobile Sempron SI-42
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Valorant

Valorant

1080P
Mobile Pentium 4 2.40
low9 FPS
medium9 FPS
high9 FPS
ultra9 FPS
1080P
Mobile Sempron SI-42
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Among Us

Among Us

1080P
Mobile Pentium 4 2.40
low9 FPS
medium9 FPS
high9 FPS
ultra9 FPS
1080P
Mobile Sempron SI-42
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Apex Legends

Apex Legends

1080P
Mobile Pentium 4 2.40
low9 FPS
medium9 FPS
high9 FPS
ultra9 FPS
1080P
Mobile Sempron SI-42
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
ARC Raiders

ARC Raiders

1080P
Mobile Pentium 4 2.40
low9 FPS
medium9 FPS
high9 FPS
ultra9 FPS
1080P
Mobile Sempron SI-42
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Baldur's Gate 3

Baldur's Gate 3

1080P
Mobile Pentium 4 2.40
low9 FPS
medium9 FPS
high9 FPS
ultra9 FPS
1080P
Mobile Sempron SI-42
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Call of Duty: Black Ops 6

Call of Duty: Black Ops 6

1080P
Mobile Pentium 4 2.40
low9 FPS
medium9 FPS
high9 FPS
ultra9 FPS
1080P
Mobile Sempron SI-42
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Call of Duty: Warzone

Call of Duty: Warzone

1080P
Mobile Pentium 4 2.40
low9 FPS
medium9 FPS
high9 FPS
ultra9 FPS
1080P
Mobile Sempron SI-42
low8 FPS
medium8 FPS
high8 FPS
ultra8 FPS
Check FPS with Custom Builds

Mobile Pentium 4 2.40 vs Mobile Sempron SI-42: Pros, Cons & Final Verdict

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

Mobile Pentium 4 2.40

2003

Why buy it

  • ✅Better for gaming: +12.5% higher average FPS across 50 shared CPU benchmark tests.
  • ✅Draws 60W instead of 512W, a 452W reduction.

Trade-offs

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

Mobile Sempron SI-42

2009

Why buy it

    Trade-offs

    • ❌Worse for gaming: lower average FPS than Mobile Pentium 4 2.40 across 50 shared CPU benchmark tests.
    • ❌Lower PassMark (332 vs 345).
    • ❌753.3% higher power demand at 512W vs 60W.

    Quick Answers

    So, is Mobile Pentium 4 2.40 better than Mobile Sempron SI-42?
    Yes. Mobile Pentium 4 2.40 is the better all-around CPU here. It gives you a 12.5% average FPS lead across 50 shared CPU game tests in our data and 3.9% better PassMark, which is enough to make it the stronger overall pick.
    Which one is better for gaming?
    If gaming is the priority, Mobile Pentium 4 2.40 is the better pick. According to our tests, it delivers 12.5% 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, Mobile Pentium 4 2.40 is the stronger fit. You are getting 3.9% better PassMark, backed by 1 cores and 2 threads.
    Which one is the smarter buy today, not just the cheaper CPU?
    Mobile Pentium 4 2.40 still makes the most sense overall. Mobile Pentium 4 2.40 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 12.5% average FPS lead across 50 shared CPU game tests in our data.
    Which one is more future-proof for 2026 and beyond?
    Mobile Sempron SI-42 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2009 vs 2003). That makes it the safer long-term bet.

    Mobile Pentium 4 2.40 vs Mobile Sempron SI-42 Technical Specifications

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

    Intel

    Mobile Pentium 4 2.40

    The Mobile Pentium 4 2.40 is manufactured by Intel. It was released in Junho 2003 (22 years ago). It is based on the Northwood (2002−2004) architecture. It features 1 cores and 2 threads. Max frequency: 2.4 GHz. L3 cache: 0 kB. L2 cache: 512 kB. Built on 130 nm process technology. Socket: PGA478. Thermal design power (TDP): 60 Watt. Memory support: DDR1, DDR2. Passmark benchmark score: 345 points. Launch price was $69.

    AMD

    Mobile Sempron SI-42

    The Mobile Sempron SI-42 is manufactured by AMD. It was released in 1 September 2009 (16 years ago). It is based on the Sable (2008−2009) architecture. It features 1 cores and 1 threads. Max frequency: 2.1 GHz. L2 cache: 512 kB. Built on 65 nm process technology. Socket: S1g2. Thermal design power (TDP): 512 kB. Passmark benchmark score: 332 points. Launch price was $69.

    ⚡

    Processing Power

    The Mobile Pentium 4 2.40 packs 1 cores / 2 threads, matching the Mobile Sempron SI-42's 1 cores. Boost clocks reach 2.4 GHz on the Mobile Pentium 4 2.40 versus 2.1 GHz on the Mobile Sempron SI-42 — a 13.3% clock advantage for the Mobile Pentium 4 2.40. The Mobile Pentium 4 2.40 uses the Northwood (2002−2004) architecture (130 nm), while the Mobile Sempron SI-42 uses Sable (2008−2009) (65 nm). In PassMark, the Mobile Pentium 4 2.40 scores 345 against the Mobile Sempron SI-42's 332 — a 3.8% lead for the Mobile Pentium 4 2.40.

    FeatureMobile Pentium 4 2.40Mobile Sempron SI-42
    Cores / Threads
    1 / 2
    1 / 1
    Boost Clock
    2.4 GHz+14%
    2.1 GHz
    L3 Cache
    0 kB
    —
    L2 Cache
    512 kB
    512 kB
    Process
    130 nm
    65 nm-50%
    Architecture
    Northwood (2002−2004)
    Sable (2008−2009)
    PassMark
    345+4%
    332
    🧠

    Memory & Platform

    The Mobile Pentium 4 2.40 uses the PGA478 socket (PCIe 1.1), while the Mobile Sempron SI-42 uses S1g2 (PCIe 2.0) — making them incompatible on the same motherboard.

    FeatureMobile Pentium 4 2.40Mobile Sempron SI-42
    Socket
    PGA478
    S1g2
    PCIe Generation
    PCIe 1.1
    PCIe 2.0+82%