Atom Z550 vs Sempron LE-1100

Atom Z550 vs Sempron LE-1100 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 Sempron LE-1100 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 Sempron LE-1100: 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 45W, a 43W reduction.

Trade-offs

❌Lower PassMark (375 vs 376).

Sempron LE-1100

2007

Why buy it

✅+0.3% higher PassMark.

Trade-offs

❌1775% higher power demand at 45W vs 2.4W.

Quick Answers

So, is Atom Z550 better than Sempron LE-1100?

It depends on what you want from the system. For gaming, Atom Z550 is ahead with 5.3% higher max boost clock. For rendering, compiling, streaming, and heavier multitasking, Sempron LE-1100 pulls ahead with 0.3% better PassMark.

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

For streaming, content creation, and heavier multitasking, Sempron LE-1100 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?

Atom Z550 still makes the most sense overall. Atom Z550 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 5.3% higher max boost clock.

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 2007). That makes it the safer long-term bet.

Atom Z550 vs Sempron LE-1100 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.

Sempron LE-1100

The Sempron LE-1100 is manufactured by AMD. It was released in 2007-01-01. It is based on the Sparta (2007) architecture. It features 1 cores and 1 threads. Max frequency: 1.9 GHz. L3 cache: 0 kB. L2 cache: 256 kB. Built on 65 nm process technology. Socket: AM2. Thermal design power (TDP): 45 Watt. 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 Sempron LE-1100's 1 cores. Boost clocks reach 2 GHz on the Atom Z550 versus 1.9 GHz on the Sempron LE-1100 — a 5.1% clock advantage for the Atom Z550. The Atom Z550 uses the Silverthorne (2008−2010) architecture (45 nm), while the Sempron LE-1100 uses Sparta (2007) (65 nm). In PassMark, the Atom Z550 scores 375 against the Sempron LE-1100's 376 — a 0.3% lead for the Sempron LE-1100. Both processors carry 0 kB of L3 cache.

Feature	Atom Z550	Sempron LE-1100
Cores / Threads	1 / 2	1 / 1
Boost Clock	2 GHz+5%	1.9 GHz
Base Clock	2 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	512 kB (per core)+100%	256 kB
Process	45 nm-31%	65 nm
Architecture	Silverthorne (2008−2010)	Sparta (2007)
PassMark	375	376

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Memory & Platform

The Atom Z550 uses the PBGA441 socket (PCIe 2.0), while the Sempron LE-1100 uses AM2 (PCIe 2.0) — making them incompatible on the same motherboard.