Atom E3815 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 E3815 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 E3815 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 E3815

2013

Why buy it

✅+5.8% higher PassMark.
✅100+% more PCIe lanes (4 vs 0) for storage and expansion-heavy builds.

Trade-offs

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

Atom N455

2010

Why buy it

Trade-offs

❌Lower PassMark (345 vs 365).

Quick Answers

So, is Atom E3815 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 E3815 pulls ahead with 5.8% better PassMark.

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

For streaming, content creation, and heavier multitasking, Atom E3815 is the stronger fit. You are getting 5.8% better PassMark, backed by 1 cores and 1 threads.

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

Atom E3815 still makes the most sense overall. Atom E3815 comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you 5.8% better PassMark.

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

Atom E3815 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2010) and more multi-core headroom with 1 cores / 1 threads instead of 1/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Atom E3815 vs Atom N455 Technical Specifications

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

Atom E3815

The Atom E3815 is manufactured by Intel. It was released in 8 October 2013 (12 years ago). It is based on the Bay Trail-I (2013) architecture. It features 1 cores and 1 threads. Max frequency: 1.47 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 512 kB. Memory support: DDR3. Passmark benchmark score: 365 points. Launch price was $134.

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

The Atom E3815 packs 1 cores / 1 threads, matching the Atom N455's 1 cores. Boost clocks reach 1.47 GHz on the Atom E3815 versus 1.67 GHz on the Atom N455 — a 12.7% clock advantage for the Atom N455. The Atom E3815 uses the Bay Trail-I (2013) architecture (22 nm), while the Atom N455 uses Pinetrail (2009−2011) (45 nm). In PassMark, the Atom E3815 scores 365 against the Atom N455's 345 — a 5.6% lead for the Atom E3815. Both processors carry 0 kB of L3 cache.

Feature	Atom E3815	Atom N455
Cores / Threads	1 / 1	1 / 2
Boost Clock	1.47 GHz	1.67 GHz+14%
Base Clock	—	1.66 GHz
L3 Cache	0 kB	0 kB
L2 Cache	512 kB (per core)	512K (per core)
Process	22 nm-51%	45 nm
Architecture	Bay Trail-I (2013)	Pinetrail (2009−2011)
PassMark	365+6%	345

🧠

Memory & Platform

The Atom E3815 uses the FCBGA1170 socket (PCIe 2.0), while the Atom N455 uses FCBGA559 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1066 on the Atom E3815 versus DDR3-667 on the Atom N455 — the Atom E3815 supports 59.8% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom E3815 supports up to 8 GB of RAM compared to 2 GB — 300% more capacity for professional workloads. Both feature 1-channel memory with ECC support. PCIe lanes: 4 (Atom E3815) vs 0 (Atom N455) — the Atom E3815 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel FCBGA1170 (Atom E3815) and Intel NM10 (Atom N455).

Feature	Atom E3815	Atom N455
Socket	FCBGA1170	FCBGA559
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3L-1066+60%	DDR3-667
Max RAM Capacity	8 GB+300%	2 GB
RAM Channels	1	1
ECC Support	Yes	No
PCIe Lanes	4	0

🔧

Advanced Features

Both include integrated graphics — Intel HD Graphics (Bay Trail) (Atom E3815) and Intel GMA 3150 (Atom N455) — useful as a fallback for troubleshooting or display output without a dedicated GPU.