Atom N455 vs Sempron 3000+

Atom N455 vs Sempron 3000+ Performance Spectrum

Atom N455

1 / 2

345

0.0%

350

+1.4%

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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 3000+ 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 3000+: 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 3000+ needs a discrete GPU.

Trade-offs

❌Lower PassMark (345 vs 350).
❌725.8% higher power demand at 512W vs 62W.

Sempron 3000+

2005

Why buy it

✅Draws 62W instead of 512W, a 450W reduction.

Trade-offs

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

Quick Answers

So, is Sempron 3000+ better than Atom N455?

Yes. Sempron 3000+ 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 1.4% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Sempron 3000+ 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 3000+ is the stronger fit. You are getting 1.4% better PassMark, backed by 1 cores and 1 threads.

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

Sempron 3000+ still makes the most sense overall. Sempron 3000+ 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 2005). That makes it the safer long-term bet.

Atom N455 vs Sempron 3000+ 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 3000+

The Sempron 3000+ is manufactured by AMD. It was released in 1 October 2005 (20 years ago). It is based on the Palermo (2001−2005) architecture. It features 1 cores and 1 threads. Max frequency: 1.8 GHz. L3 cache: 0 kB. L2 cache: 128 kB. Built on 130 nm process technology. Socket: 939. Thermal design power (TDP): 62 Watt. Memory support: DDR1. Passmark benchmark score: 350 points. Launch price was $50.

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Processing Power

The Atom N455 packs 1 cores / 2 threads, matching the Sempron 3000+'s 1 cores. Boost clocks reach 1.67 GHz on the Atom N455 versus 1.8 GHz on the Sempron 3000+ — a 7.5% clock advantage for the Sempron 3000+. The Atom N455 uses the Pinetrail (2009−2011) architecture (45 nm), while the Sempron 3000+ uses Palermo (2001−2005) (130 nm). In PassMark, the Atom N455 scores 345 against the Sempron 3000+'s 350 — a 1.4% lead for the Sempron 3000+. Both processors carry 0 kB of L3 cache.

Feature	Atom N455	Sempron 3000+
Cores / Threads	1 / 2	1 / 1
Boost Clock	1.67 GHz	1.8 GHz+8%
Base Clock	1.66 GHz	—
L3 Cache	0 kB	0 kB
L2 Cache	512K (per core)+300%	128 kB
Process	45 nm-65%	130 nm
Architecture	Pinetrail (2009−2011)	Palermo (2001−2005)
PassMark	345	350+1%

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Memory & Platform

The Atom N455 uses the FCBGA559 socket (PCIe 2.0), while the Sempron 3000+ uses 939 (PCIe 2.0) — making them incompatible on the same motherboard.