A8-3820 vs Celeron J3455E

A8-3820 vs Celeron J3455E Performance Spectrum

A8-3820

4 / 4

2,178

0.0%

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Celeron J3455E

4 / 4

2,193

+0.7%

About PassMark

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.

A8-3820 vs Celeron J3455E 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.

A8-3820 vs Celeron J3455E: Pros, Cons & Final Verdict

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

A8-3820

2011

Why buy it

✅233.3% more PCIe lanes (20 vs 6) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Celeron J3455E.

Trade-offs

❌Lower Geekbench single-core performance for gaming (354 vs 450).
❌Lower PassMark (2,178 vs 2,193).
❌Launch MSRP is still $280 MSRP, while Celeron J3455E mostly shows up through inconsistent older-market listings.
❌550% higher power demand at 65W vs 10W.

Celeron J3455E

2019

Why buy it

✅+27.1% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅Draws 10W instead of 65W, a 55W reduction.

Trade-offs

❌No boxed cooler included, unlike A8-3820.

Quick Answers

So, is Celeron J3455E better than A8-3820?

Yes. Celeron J3455E is the better all-around CPU here. It gives you a 0.6% average FPS lead across 50 shared CPU game tests in our data, 0.7% 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 J3455E is the better pick. According to our tests, it delivers 0.6% 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 J3455E is the stronger fit. You are getting 0.7% better PassMark, backed by 4 cores and 4 threads.

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

Celeron J3455E is still the much better call for a fresh build. Celeron J3455E comes in at an unclear MSRP at unclear MSRP versus $280 MSRP, and it still gives you a 0.6% average FPS lead across 50 shared CPU game tests in our data. A8-3820 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2011 platform. Even with 100.0% better value on paper (7.8 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on FM1.

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

Celeron J3455E makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2011) and more multi-core headroom with 4 cores / 4 threads instead of 4/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

A8-3820 vs Celeron J3455E Technical Specifications

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

A8-3820

The A8-3820 is manufactured by AMD. It was released in 2014-01-01. It is based on the Llano (2011−2012) architecture. It features 4 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FM1. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 2,178 points. Launch price was $90.

Celeron J3455E

The Celeron J3455E is manufactured by Intel. It was released in 2007-01-01. It features 4 cores and 4 threads. Base frequency is 1.5 GHz, with boost up to 2.3 GHz. L3 cache: 2 MB. Built on 14 nm process technology. Thermal design power (TDP): 10 Watt. Memory support: DDR3L/LPDDR3 up to 1866 MT/s; LPDDR4 up to 2400 MT/s. Passmark benchmark score: 2,193 points. Launch price was $69.

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Processing Power

Both the A8-3820 and Celeron J3455E share an identical 4-core/4-thread configuration. Boost clocks reach 2.8 GHz on the A8-3820 versus 2.3 GHz on the Celeron J3455E — a 19.6% clock advantage for the A8-3820 (base: 2.5 GHz vs 1.5 GHz). The A8-3820 is built on the Llano (2011−2012) architecture. In PassMark, the A8-3820 scores 2,178 against the Celeron J3455E's 2,193 — a 0.7% lead for the Celeron J3455E. Geekbench 6 single-core — the metric most relevant to gaming — records 354 vs 450, a 23.9% lead for the Celeron J3455E that directly translates to higher frame rates. L3 cache: 0 kB on the A8-3820 vs 2 MB on the Celeron J3455E.

Feature	A8-3820	Celeron J3455E
Cores / Threads	4 / 4	4 / 4
Boost Clock	2.8 GHz+22%	2.3 GHz
Base Clock	2.5 GHz+67%	1.5 GHz
L3 Cache	0 kB	2 MB
L2 Cache	1 MB (per core)	—
Process	32 nm	14 nm-56%
Architecture	Llano (2011−2012)	—
PassMark	2,178	2,193
Geekbench 6 Single	354	450+27%
Geekbench 6 Multi	—	850

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Memory & Platform

Maximum memory speed reaches DDR3-1866 on the A8-3820 versus DDR4-2400 on the Celeron J3455E — the Celeron J3455E supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The A8-3820 supports up to 32 GB of RAM compared to 8 GB — 300% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 20 (A8-3820) vs 6 (Celeron J3455E) — the A8-3820 offers 14 more lanes for additional GPUs or NVMe drives. Chipset compatibility: A55,A75 (A8-3820) and N/A (SoC) (Celeron J3455E).

Feature	A8-3820	Celeron J3455E
Socket	FM1	—
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR3-1866	DDR4-2400+29%
Max RAM Capacity	32 GB+300%	8 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	20+233%	6

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Advanced Features

Neither processor supports overclocking. Virtualization support: AMD-V (A8-3820) vs VT-x (Celeron J3455E). Both include integrated graphics — Radeon HD 6550D (A8-3820) and HD Graphics 500 (Celeron J3455E) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: A8-3820 targets Budget Desktop, Celeron J3455E targets Low Power. Direct competitor: A8-3820 rivals Core i3-2120; Celeron J3455E rivals Pentium J4205.