Atom N455 vs Sempron LE-1100

Atom N455 vs Sempron LE-1100 Performance Spectrum

Atom N455

1 / 2

345

0.0%

376

+9.0%

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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 N455 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 N455 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 N455

2010

Why buy it

✅Integrated graphics onboard with Intel GMA 3150, while Sempron LE-1100 needs a discrete GPU.

Trade-offs

❌Lower PassMark (345 vs 376).
❌1037.8% higher power demand at 512W vs 45W.

Sempron LE-1100

2007

Why buy it

✅Draws 45W instead of 512W, a 467W reduction.

Trade-offs

❌No integrated graphics, while Atom N455 can still boot and troubleshoot without a discrete GPU.

Quick Answers

So, is Sempron LE-1100 better than Atom N455?

Yes. Sempron LE-1100 is the better all-around CPU here. It gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data and 9% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Sempron LE-1100 is the better pick. According to our tests, it delivers 0.2% 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, Sempron LE-1100 is the stronger fit. You are getting 9% better PassMark, backed by 1 cores and 1 threads.

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

Sempron LE-1100 still makes the most sense overall. Sempron LE-1100 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 0.2% average FPS lead across 50 shared CPU game tests in our data.

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

Atom N455 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2010 vs 2007). That makes it the safer long-term bet.

Atom N455 vs Sempron LE-1100 Technical Specifications

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

Atom N455

The Atom N455 is manufactured by Intel. It was released in 1 June 2010 (15 years ago). It is based on the Pinetrail (2009−2011) architecture. It features 1 cores and 2 threads. Base frequency is 1.66 GHz, with boost up to 1.67 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 45 nm process technology. Socket: FCBGA559. Thermal design power (TDP): 6.5 Watt. Memory support: DDR3. Passmark benchmark score: 345 points. Launch price was $64.

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 N455 packs 1 cores / 2 threads, matching the Sempron LE-1100's 1 cores. Boost clocks reach 1.67 GHz on the Atom N455 versus 1.9 GHz on the Sempron LE-1100 — a 12.9% clock advantage for the Sempron LE-1100. The Atom N455 uses the Pinetrail (2009−2011) architecture (45 nm), while the Sempron LE-1100 uses Sparta (2007) (65 nm). In PassMark, the Atom N455 scores 345 against the Sempron LE-1100's 376 — a 8.6% lead for the Sempron LE-1100. Both processors carry 0 kB of L3 cache.

Feature	Atom N455	Sempron LE-1100
Cores / Threads	1 / 2	1 / 1
Boost Clock	1.67 GHz	1.9 GHz+14%
Base Clock	1.66 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	512K (per core)+100%	256 kB
Process	45 nm-31%	65 nm
Architecture	Pinetrail (2009−2011)	Sparta (2007)
PassMark	345	376+9%

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Memory & Platform

The Atom N455 uses the FCBGA559 socket (PCIe 2.0), while the Sempron LE-1100 uses AM2 (PCIe 2.0) — making them incompatible on the same motherboard.