Atom E3845 vs Celeron N2820

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.

Head-to-Head Verdict, Benchmarks, Value & Long-Term Outlook

This comparison brings together gaming FPS, productivity performance, platform differences, power efficiency, pricing context, and upgrade path so you can see which CPU actually makes more sense.

Atom E3845

2013

Why buy it

✅+0.9% higher PassMark.

Trade-offs

❌42.9% higher power demand at 10W vs 7W.

Celeron N2820

2013

Why buy it

✅Draws 7W instead of 10W, a 3W reduction.

Trade-offs

❌Lower PassMark (1,061 vs 1,071).

Atom E3845

2013

Celeron N2820

2013

Why buy it

✅+0.9% higher PassMark.

Why buy it

✅Draws 7W instead of 10W, a 3W reduction.

Trade-offs

❌42.9% higher power demand at 10W vs 7W.

Trade-offs

❌Lower PassMark (1,061 vs 1,071).

Quick Answers

So, is Atom E3845 better than Celeron N2820?

It depends on what matters more to you. For gaming, Celeron N2820 is ahead with 25.1% higher max boost clock. For rendering, compiling, streaming, and heavier multitasking, Atom E3845 pulls ahead with 0.9% better PassMark.

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

For streaming, content creation, and heavier multitasking, Atom E3845 is the better fit. You are getting 0.9% better PassMark, backed by 4 cores and 4 threads.

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

Atom E3845 still looks like the safer overall buy. Atom E3845 is at an unclear MSRP at unclear MSRP versus unclear MSRP, and it gives you 0.9% better PassMark.

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

Atom E3845 is the more future-proof choice for 2026 and beyond. You are getting more multi-core headroom with 4 cores / 4 threads instead of 2/2. That extra compute headroom should age better as games, background tasks, and creator workloads get heavier.

Games Benchmarks

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Atom E3845 Benchmark Check

Celeron N2820 Benchmark Check

Path of Exile 2

Preset	Atom E3845	Celeron N2820
1080p
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	27 FPS
1440p
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	27 FPS
4K
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	27 FPS

Open Atom E3845 Open Celeron N2820

Path of Exile 2

Path of Exile 2

Counter-Strike 2

Preset	Atom E3845	Celeron N2820
1080p
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	27 FPS
1440p
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	27 FPS
4K
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	22 FPS

Open Atom E3845 Open Celeron N2820

Counter-Strike 2

Counter-Strike 2

League of Legends

Preset	Atom E3845	Celeron N2820
1080p
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	27 FPS
1440p
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	27 FPS
4K
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	27 FPS

Open Atom E3845 Open Celeron N2820

League of Legends

League of Legends

Valorant

Preset	Atom E3845	Celeron N2820
1080p
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	27 FPS
1440p
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	27 FPS
4K
low	27 FPS	27 FPS
medium	27 FPS	27 FPS
high	27 FPS	27 FPS
ultra	27 FPS	27 FPS

Open Atom E3845 Open Celeron N2820

Valorant

Valorant

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Atom E3845 and Celeron N2820

Atom E3845

The Atom E3845 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 4 cores and 4 threads. Max frequency: 1.91 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 10 Watt. Memory support: DDR3. Passmark benchmark score: 1,071 points. Launch price was $69.

Celeron N2820

The Celeron N2820 is manufactured by Intel. It was released in 1 December 2013 (12 years ago). It is based on the Bay Trail-M (2013−2014) architecture. It features 2 cores and 2 threads. Base frequency is 2.13 GHz, with boost up to 2.39 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 7.5 Watt. Memory support: DDR3. Passmark benchmark score: 1,061 points. Launch price was $107.

⚡

Processing Power

The Atom E3845 packs 4 cores / 4 threads, while the Celeron N2820 offers 2 cores / 2 threads — the Atom E3845 has 2 more cores. Boost clocks reach 1.91 GHz on the Atom E3845 versus 2.39 GHz on the Celeron N2820 — a 22.3% clock advantage for the Celeron N2820. The Atom E3845 uses the Bay Trail-I (2013) architecture (22 nm), while the Celeron N2820 uses Bay Trail-M (2013−2014) (22 nm). In PassMark, the Atom E3845 scores 1,071 against the Celeron N2820's 1,061 — a 0.9% lead for the Atom E3845. Both processors carry 0 kB of L3 cache.

Feature	Atom E3845	Celeron N2820
Cores / Threads	4 / 4+100%	2 / 2
Boost Clock	1.91 GHz	2.39 GHz+25%
Base Clock	—	2.13 GHz
L3 Cache	0 kB	0 kB
L2 Cache	512 kB (per core)	512K (per core)
Process	22 nm	22 nm
Architecture	Bay Trail-I (2013)	Bay Trail-M (2013−2014)
PassMark	1,071	1,061
Geekbench 6 Single	—	220
Geekbench 6 Multi	—	400

🧠

Memory & Platform

Both processors use the FCBGA1170 socket with PCIe 2.0. Both support up to DDR3L-1333 memory speed. Both support up to 8 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 4 PCIe lanes. Chipset compatibility: Intel FCBGA1170 (Atom E3845) and SoC (Celeron N2820).

Feature	Atom E3845	Celeron N2820
Socket	FCBGA1170	FCBGA1170
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3L-1333	DDR3L-1066
Max RAM Capacity	8 GB	8 GB
RAM Channels	2	2
ECC Support	Yes	No
PCIe Lanes	4	4

🔧

Advanced Features

Virtualization: not specified (Atom E3845) / VT-x (Celeron N2820). Both include integrated graphics — Intel HD Graphics (Bay Trail) (Atom E3845) and Intel HD Graphics (Bay Trail) (Celeron N2820) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron N2820 targets Netbook. Direct competitor: Celeron N2820 rivals AMD A6-6310.

Feature	Atom E3845	Celeron N2820
Integrated GPU	Yes	Yes
IGPU Model	Intel HD Graphics (Bay Trail)	Intel HD Graphics (Bay Trail)
Unlocked	—	No
AVX-512	—	No
Virtualization	—	VT-x
Target Use	—	Netbook