Atom N455 vs Atom Z670

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 Atom Z670 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 Atom Z670: 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

Trade-offs

❌Lower PassMark (345 vs 375).
❌16966.7% higher power demand at 512W vs 3W.

Atom Z670

2011

Why buy it

✅+8.7% higher PassMark.
✅Draws 3W instead of 512W, a 509W reduction.

Trade-offs

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

Quick Answers

So, is Atom Z670 better than Atom N455?

It depends on what you want from the system. For gaming, Atom N455 is ahead with a 0.2% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Atom Z670 pulls ahead with 8.7% better PassMark.

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

For streaming, content creation, and heavier multitasking, Atom Z670 is the stronger fit. You are getting 8.7% better PassMark, backed by 1 cores and 2 threads.

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

Atom Z670 still makes the most sense overall. Atom Z670 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 8.7% better PassMark.

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

Atom Z670 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2011 vs 2010) 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 N455 vs Atom Z670 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.

Atom Z670

The Atom Z670 is manufactured by Intel. It was released in 11 April 2011 (14 years ago). It is based on the Lincroft (2010−2011) architecture. It features 1 cores and 2 threads. Base frequency is 1.5 GHz, with boost up to 1.5 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 45 nm process technology. Socket: T-PBGA518. Thermal design power (TDP): 3 Watt. Memory support: DDR2. Passmark benchmark score: 375 points. Launch price was $75.

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Processing Power

Both the Atom N455 and Atom Z670 share an identical 1-core/2-thread configuration. Boost clocks reach 1.67 GHz on the Atom N455 versus 1.5 GHz on the Atom Z670 — a 10.7% clock advantage for the Atom N455 (base: 1.66 GHz vs 1.5 GHz). The Atom N455 uses the Pinetrail (2009−2011) architecture (45 nm), while the Atom Z670 uses Lincroft (2010−2011) (45 nm). In PassMark, the Atom N455 scores 345 against the Atom Z670's 375 — a 8.3% lead for the Atom Z670. Both processors carry 0 kB of L3 cache.

Feature	Atom N455	Atom Z670
Cores / Threads	1 / 2	1 / 2
Boost Clock	1.67 GHz+11%	1.5 GHz
Base Clock	1.66 GHz+11%	1.5 GHz
L3 Cache	0 kB	0 kB
L2 Cache	512K (per core)	512K (per core)
Process	45 nm	45 nm
Architecture	Pinetrail (2009−2011)	Lincroft (2010−2011)
PassMark	345	375+9%

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Memory & Platform

The Atom N455 uses the FCBGA559 socket (PCIe 2.0), while the Atom Z670 uses T-PBGA518 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-667 on the Atom N455 versus DDR2-800 on the Atom Z670 — the Atom Z670 supports 19.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. 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 N455) and Intel SM35 (Atom Z670).

Feature	Atom N455	Atom Z670
Socket	FCBGA559	T-PBGA518
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-667	DDR2-800+20%
Max RAM Capacity	2 GB	2 GB
RAM Channels	1	1
ECC Support	No	No
PCIe Lanes	0	0

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Advanced Features

Both include integrated graphics — Intel GMA 3150 (Atom N455) and Intel GMA 600 (Atom Z670) — useful as a fallback for troubleshooting or display output without a dedicated GPU.