Atom Z550 vs Mobile Sempron 3300+

Atom Z550 vs Mobile Sempron 3300+ Performance Spectrum

Atom Z550

1 / 2

375

0.0%

376

+0.3%

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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.

Atom Z550 vs Mobile Sempron 3300+ 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.

Atom Z550 vs Mobile Sempron 3300+: Pros, Cons & Final Verdict

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

Atom Z550

2009

Why buy it

✅Draws 2W instead of 128W, a 126W reduction.

Trade-offs

❌Lower PassMark (375 vs 376).

Mobile Sempron 3300+

2005

Why buy it

✅+0.3% higher PassMark.

Trade-offs

❌5233.3% higher power demand at 128W vs 2.4W.

Quick Answers

So, is Mobile Sempron 3300+ better than Atom Z550?

Yes. Mobile Sempron 3300+ is the better all-around CPU here. It gives you 0.3% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

For gaming, this matchup is basically a tie in the data we have.

Which one is better for streaming, content creation, and heavy multitasking?

For streaming, content creation, and heavier multitasking, Mobile Sempron 3300+ is the stronger fit. You are getting 0.3% better PassMark, backed by 1 cores and 1 threads.

Which one is the smarter buy today, not just the cheaper CPU?

Mobile Sempron 3300+ still makes the most sense overall. Mobile Sempron 3300+ comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 0.3% higher PassMark.

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

Atom Z550 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2009 vs 2005). That makes it the safer long-term bet.

Atom Z550 vs Mobile Sempron 3300+ Technical Specifications

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

Atom Z550

The Atom Z550 is manufactured by Intel. It was released in 8 April 2009 (16 years ago). It is based on the Silverthorne (2008−2010) architecture. It features 1 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: PBGA441. Thermal design power (TDP): 2.4 Watt. Memory support: unknown. Passmark benchmark score: 375 points. Launch price was $69.

Mobile Sempron 3300+

The Mobile Sempron 3300+ is manufactured by AMD. It was released in 1 June 2005 (20 years ago). It is based on the Roma (2005) architecture. It features 1 cores and 1 threads. Max frequency: 2 GHz. L2 cache: 128 kB. Built on 90 nm process technology. Socket: 745. Thermal design power (TDP): 128 kB. Passmark benchmark score: 376 points. Launch price was $69.

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Processing Power

The Atom Z550 packs 1 cores / 2 threads, matching the Mobile Sempron 3300+'s 1 cores. Boost clocks reach 2 GHz on the Atom Z550 versus 2 GHz on the Mobile Sempron 3300+ — identical boost frequencies. The Atom Z550 uses the Silverthorne (2008−2010) architecture (45 nm), while the Mobile Sempron 3300+ uses Roma (2005) (90 nm). In PassMark, the Atom Z550 scores 375 against the Mobile Sempron 3300+'s 376 — a 0.3% lead for the Mobile Sempron 3300+.

Feature	Atom Z550	Mobile Sempron 3300+
Cores / Threads	1 / 2	1 / 1
Boost Clock	2 GHz	2 GHz
Base Clock	2 GHz	—
L3 Cache	0 kB	—
L2 Cache	512 kB (per core)+300%	128 kB
Process	45 nm-50%	90 nm
Architecture	Silverthorne (2008−2010)	Roma (2005)
PassMark	375	376

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Memory & Platform

The Atom Z550 uses the PBGA441 socket (PCIe 2.0), while the Mobile Sempron 3300+ uses 745 (PCIe 2.0) — making them incompatible on the same motherboard.