Celeron M 743 vs Celeron N2840

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.

Celeron M 743 vs Celeron N2840 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.

Celeron M 743 vs Celeron N2840: Pros, Cons & Final Verdict

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

Celeron M 743

2009

Why buy it

✅Draws 1W instead of 7W, a 6W reduction.

Trade-offs

❌Lower PassMark (1,324 vs 1,331).
❌Launch MSRP is still $107 MSRP, while Celeron N2840 mostly shows up through inconsistent older-market listings.
❌No integrated graphics, while Celeron N2840 can still boot and troubleshoot without a discrete GPU.

Celeron N2840

2014

Why buy it

✅100+% more PCIe lanes (4 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics (Bay Trail), while Celeron M 743 needs a discrete GPU.

Trade-offs

❌600% higher power demand at 7W vs 1W.

Quick Answers

So, is Celeron N2840 better than Celeron M 743?

Yes. Celeron N2840 is the better all-around CPU here. It gives you a 0.9% average FPS lead across 50 shared CPU game tests in our data, 0.5% 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, Celeron N2840 is the better pick. According to our tests, it delivers 0.9% 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, Celeron N2840 is the stronger fit. You are getting 0.5% better PassMark, backed by 2 cores and 2 threads.

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

Celeron N2840 is the easy recommendation for a fresh desktop build. Celeron N2840 comes in at an unclear MSRP at unclear MSRP versus $107 MSRP, and it still gives you a 0.9% average FPS lead across 50 shared CPU game tests in our data. Celeron M 743 only looks good on raw value math because it is a cheap legacy laptop chip, not because it is a real desktop gaming recommendation. It simply does not keep up in modern games, especially when the gap is already 0.9% in the shared gaming data.

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

Celeron N2840 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2014 vs 2009) and more multi-core headroom with 2 cores / 2 threads instead of 1/1. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Celeron M 743 vs Celeron N2840 Technical Specifications

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

Celeron M 743

The Celeron M 743 is manufactured by Intel. It was released in 1 September 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 1 cores and 1 threads. Max frequency: 1.3 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: BGA965. Thermal design power (TDP): 1 MB. Passmark benchmark score: 1,324 points. Launch price was $107.

Celeron N2840

The Celeron N2840 is manufactured by Intel. It was released in 2007-01-01. It is based on the Bay Trail-M (2013−2014) architecture. It features 2 cores and 2 threads. Base frequency is 2.16 GHz, with boost up to 2.58 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: 1,331 points. Launch price was $69.

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Processing Power

The Celeron M 743 packs 1 cores / 1 threads, while the Celeron N2840 offers 2 cores / 2 threads — the Celeron N2840 has 1 more core. Boost clocks reach 1.3 GHz on the Celeron M 743 versus 2.58 GHz on the Celeron N2840 — a 66% clock advantage for the Celeron N2840. The Celeron M 743 uses the Penryn (2008−2011) architecture (45 nm), while the Celeron N2840 uses Bay Trail-M (2013−2014) (22 nm). In PassMark, the Celeron M 743 scores 1,324 against the Celeron N2840's 1,331 — a 0.5% lead for the Celeron N2840.

Feature	Celeron M 743	Celeron N2840
Cores / Threads	1 / 1	2 / 2+100%
Boost Clock	1.3 GHz	2.58 GHz+98%
Base Clock	—	2.16 GHz
L3 Cache	—	0 kB
L2 Cache	1 MB	512K (per core)+51100%
Process	45 nm	22 nm-51%
Architecture	Penryn (2008−2011)	Bay Trail-M (2013−2014)
PassMark	1,324	1,331
Geekbench 6 Single	—	230
Geekbench 6 Multi	—	430

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Memory & Platform

The Celeron M 743 uses the BGA965 socket (PCIe 1.1), while the Celeron N2840 uses FCBGA1170 (PCIe 2.0) — making them incompatible on the same motherboard.

Feature	Celeron M 743	Celeron N2840
Socket	BGA965	FCBGA1170
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	—	DDR3L-1333
Max RAM Capacity	—	8 GB
RAM Channels	—	2
ECC Support	—	No
PCIe Lanes	—	4

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Advanced Features

Virtualization: not specified (Celeron M 743) / VT-x (Celeron N2840). The Celeron N2840 includes integrated graphics (Intel HD Graphics (Bay Trail)), while the Celeron M 743 requires a dedicated GPU. Primary use case: Celeron N2840 targets Netbook. Direct competitor: Celeron N2840 rivals AMD A6-6310.