Atom N450 vs Atom N455

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 N450 vs Atom N455 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 N450 vs Atom N455: Pros, Cons & Final Verdict

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

Atom N450

2009

Why buy it

Trade-offs

❌Worse for gaming: lower average FPS than Atom N455 across 47 shared CPU benchmark tests.
❌Lower PassMark (325 vs 345).

Atom N455

2010

Why buy it

✅Better for gaming: +12.5% higher average FPS across 47 shared CPU benchmark tests.

Trade-offs

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

Quick Answers

So, is Atom N455 better than Atom N450?

Yes. Atom N455 is the better all-around CPU here. It gives you a 12.5% average FPS lead across 47 shared CPU game tests in our data, 6.2% better PassMark, and the stronger long-term platform, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Atom N455 is the better pick. According to our tests, it delivers 12.5% more average FPS across 47 shared CPU game tests.

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

For streaming, content creation, and heavier multitasking, Atom N455 is the stronger fit. You are getting 6.2% better PassMark, backed by 1 cores and 2 threads.

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

Atom N455 still makes the most sense overall. Atom N455 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 12.5% average FPS lead across 47 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 2009) and more multi-core headroom with 1 cores / 2 threads instead of 1/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Atom N450 vs Atom N455 Technical Specifications

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

Atom N450

The Atom N450 is manufactured by Intel. It was released in 21 December 2009 (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: 512 kB (per core). Built on 45 nm process technology. Socket: FCBGA559. Thermal design power (TDP): 5.5 Watt. Memory support: DDR2. Passmark benchmark score: 325 points. Launch price was $64.

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.

⚡

Processing Power

Both the Atom N450 and Atom N455 share an identical 1-core/2-thread configuration. Boost clocks reach 1.67 GHz on the Atom N450 versus 1.67 GHz on the Atom N455 — identical boost frequencies (base: 1.66 GHz vs 1.66 GHz). Both are built on the Pinetrail (2009−2011) architecture using a 45 nm process. In PassMark, the Atom N450 scores 325 against the Atom N455's 345 — a 6% lead for the Atom N455. Both processors carry 0 kB of L3 cache.

Feature	Atom N450	Atom N455
Cores / Threads	1 / 2	1 / 2
Boost Clock	1.67 GHz	1.67 GHz
Base Clock	1.66 GHz	1.66 GHz
L3 Cache	0 kB	0 kB
L2 Cache	512 kB (per core)	512K (per core)
Process	45 nm	45 nm
Architecture	Pinetrail (2009−2011)	Pinetrail (2009−2011)
PassMark	325	345+6%

🧠

Memory & Platform

Both processors use the FCBGA559 socket with PCIe 2.0. Both support up to DDR2-667 memory speed. Both support up to 2 GB of RAM. Both feature 1-channel memory with ECC support. Both provide 0 PCIe lanes. Chipset compatibility: Intel NM10 (Atom N450) and Intel NM10 (Atom N455).

Feature	Atom N450	Atom N455
Socket	FCBGA559	FCBGA559
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR2-667	DDR3-667
Max RAM Capacity	2 GB	2 GB
RAM Channels	1	1
ECC Support	No	No
PCIe Lanes	0	0

🔧

Advanced Features

Both include integrated graphics — Intel GMA 3150 (Atom N450) and Intel GMA 3150 (Atom N455) — useful as a fallback for troubleshooting or display output without a dedicated GPU.