Celeron B840 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.

Celeron B840 vs Celeron N2820 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 B840 vs Celeron N2820: Pros, Cons & Final Verdict

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

Celeron B840

2011

Why buy it

✅+104.5% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅300% more PCIe lanes (16 vs 4) for storage and expansion-heavy builds.

Trade-offs

❌Launch MSRP is still $86 MSRP, while Celeron N2820 mostly shows up through inconsistent older-market listings.

Celeron N2820

2013

Why buy it

Trade-offs

❌Lower Geekbench single-core performance for gaming (220 vs 450).
❌Lower Geekbench multi-core (400 vs 790).

Quick Answers

So, is Celeron B840 better than Celeron N2820?

Yes. Celeron B840 is the better all-around CPU here. It gives you a 1.8% average FPS lead across 50 shared CPU game tests in our data, 97.5% better Geekbench multi-core, and 0.4% higher PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Celeron B840 is the better pick. According to our tests, it delivers 1.8% 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 B840 is the stronger fit. You are getting 97.5% better Geekbench multi-core, backed by 2 cores and 2 threads.

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

Celeron B840 is the better buy right now. Celeron B840 comes in at an unclear MSRP at $86 MSRP versus unclear MSRP, and it still gives you a 1.8% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (12.4 vs 0.0 PassMark/$), so you are getting the faster CPU without taking a value hit on paper.

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

Celeron N2820 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2013 vs 2011). That makes it the safer long-term bet.

Celeron B840 vs Celeron N2820 Technical Specifications

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

Celeron B840

The Celeron B840 is manufactured by Intel. It was released in 1 July 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.9 GHz, with boost up to 1.9 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,065 points. Launch price was $86.

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.

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Processing Power

Both the Celeron B840 and Celeron N2820 share an identical 2-core/2-thread configuration. Boost clocks reach 1.9 GHz on the Celeron B840 versus 2.39 GHz on the Celeron N2820 — a 22.8% clock advantage for the Celeron N2820 (base: 1.9 GHz vs 2.13 GHz). The Celeron B840 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Celeron N2820 uses Bay Trail-M (2013−2014) (22 nm). In PassMark, the Celeron B840 scores 1,065 against the Celeron N2820's 1,061 — a 0.4% lead for the Celeron B840. Geekbench 6 single-core — the metric most relevant to gaming — records 450 vs 220, a 68.7% lead for the Celeron B840 that directly translates to higher frame rates. Multi-core Geekbench: 790 vs 400 (65.5% advantage for the Celeron B840). L3 cache: 2 MB (total) on the Celeron B840 vs 0 kB on the Celeron N2820.

Feature	Celeron B840	Celeron N2820
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.9 GHz	2.39 GHz+26%
Base Clock	1.9 GHz	2.13 GHz+12%
L3 Cache	2 MB (total)	0 kB
L2 Cache	256K (per core)	512K (per core)+100%
Process	32 nm	22 nm-31%
Architecture	Sandy Bridge (2011−2013)	Bay Trail-M (2013−2014)
PassMark	1,065	1,061
Geekbench 6 Single	450+105%	220
Geekbench 6 Multi	790+98%	400

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Memory & Platform

The Celeron B840 uses the PGA988 socket (PCIe 2.0), while the Celeron N2820 uses FCBGA1170 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 1333 on the Celeron B840 versus DDR3L-1066 on the Celeron N2820 — the Celeron B840 supports 25% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron B840 supports up to 16 GB of RAM compared to 8 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Celeron B840) vs 4 (Celeron N2820) — the Celeron B840 offers 12 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM65,HM67,QM67 (Celeron B840) and SoC (Celeron N2820).

Feature	Celeron B840	Celeron N2820
Socket	PGA988	FCBGA1170
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	1333+25%	DDR3L-1066
Max RAM Capacity	16 GB+100%	8 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16+300%	4

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Advanced Features

Neither processor supports overclocking. Virtualization support: true (Celeron B840) vs VT-x (Celeron N2820). Both include integrated graphics — Intel HD Graphics (Sandy Bridge) (Celeron B840) 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 B840 targets Budget, Celeron N2820 targets Netbook. Direct competitor: Celeron B840 rivals Pentium B940; Celeron N2820 rivals AMD A6-6310.

Feature	Celeron B840	Celeron N2820
Integrated GPU	Yes	Yes
IGPU Model	Intel HD Graphics (Sandy Bridge)	Intel HD Graphics (Bay Trail)
Unlocked	No	No
AVX-512	No	No
Virtualization	true	VT-x
Target Use	Budget	Netbook