A6-5400K vs Celeron G550

A6-5400K vs Celeron G550 Performance Spectrum

A6-5400K

2 / 2

1,279

+0.3%

Ryzen Threadripper PRO 3955WX

Ryzen Threadripper PRO 7955WX

Ryzen Threadripper 3990X

Celeron G550

2 / 2

1,275

0.0%

Celeron N3000

Pentium T3400

Pentium Dual-Core E2200

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.

A6-5400K vs Celeron G550 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.

A6-5400K vs Celeron G550: Pros, Cons & Final Verdict

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

A6-5400K

2012

Why buy it

✅+2.9% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅Includes a boxed cooler (Yes), unlike Celeron G550.

Trade-offs

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

Celeron G550

2012

Why buy it

Trade-offs

❌Lower Geekbench single-core performance for gaming (379 vs 390).
❌Lower PassMark (1,275 vs 1,279).
❌Launch MSRP is still $52 MSRP, while A6-5400K mostly shows up through inconsistent older-market listings.
❌No boxed cooler included, unlike A6-5400K.

Quick Answers

So, is A6-5400K better than Celeron G550?

Yes. A6-5400K is the better all-around CPU here. It gives you a 2.1% average FPS lead across 50 shared CPU game tests in our data, 0.3% 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, A6-5400K is the better pick. According to our tests, it delivers 2.1% 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, A6-5400K is the stronger fit. You are getting 0.3% better PassMark, backed by 2 cores and 2 threads.

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

A6-5400K is still the much better call for a fresh build. A6-5400K comes in at an unclear MSRP at unclear MSRP versus $52 MSRP, and it still gives you a 2.1% average FPS lead across 50 shared CPU game tests in our data. Celeron G550 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2012 platform. Even with 100.0% better value on paper (24.5 vs 0.0 PassMark/$), it really only makes sense as a cheap stopgap or a niche existing-platform option for someone already on LGA1155.

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

A6-5400K makes more sense long term for 2026 and beyond. You are getting more multi-core headroom with 2 cores / 2 threads instead of 2/2. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

A6-5400K vs Celeron G550 Technical Specifications

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

A6-5400K

The A6-5400K is manufactured by AMD. It was released in 2014-01-01. It is based on the Trinity (2012−2013) architecture. It features 2 cores and 2 threads. Base frequency is 3.6 GHz, with boost up to 3.8 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FM2. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,279 points. Launch price was $70.

Celeron G550

The Celeron G550 is manufactured by Intel. It was released in 1 June 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 2 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,275 points. Launch price was $80.

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Processing Power

Both the A6-5400K and Celeron G550 share an identical 2-core/2-thread configuration. Boost clocks reach 3.8 GHz on the A6-5400K versus 2.6 GHz on the Celeron G550 — a 37.5% clock advantage for the A6-5400K (base: 3.6 GHz vs 2.6 GHz). The A6-5400K uses the Trinity (2012−2013) architecture (32 nm), while the Celeron G550 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the A6-5400K scores 1,279 against the Celeron G550's 1,275 — a 0.3% lead for the A6-5400K. Geekbench 6 single-core — the metric most relevant to gaming — records 390 vs 379, a 2.9% lead for the A6-5400K that directly translates to higher frame rates. L3 cache: 0 kB on the A6-5400K vs 2 MB (total) on the Celeron G550.

Feature	A6-5400K	Celeron G550
Cores / Threads	2 / 2	2 / 2
Boost Clock	3.8 GHz+46%	2.6 GHz
Base Clock	3.6 GHz+38%	2.6 GHz
L3 Cache	0 kB	2 MB (total)
L2 Cache	1 MB (per core)+300%	256 kB (per core)
Process	32 nm	32 nm
Architecture	Trinity (2012−2013)	Sandy Bridge (2011−2013)
PassMark	1,279	1,275
Geekbench 6 Single	390+3%	379
Geekbench 6 Multi	—	663

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Memory & Platform

The A6-5400K uses the FM2 socket (PCIe 2.0), while the Celeron G550 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1866 on the A6-5400K versus DDR3-1066 on the Celeron G550 — the A6-5400K supports 75% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 32 GB of RAM. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: A55,A75,A85X,A88X (A6-5400K) and H61,B65,H67,Z68 (Celeron G550).

Feature	A6-5400K	Celeron G550
Socket	FM2	LGA1155
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1866+75%	DDR3-1066
Max RAM Capacity	32 GB	32 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	16

🔧

Advanced Features

Only the A6-5400K has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Virtualization support: AMD-V (A6-5400K) vs VT-x (Celeron G550). Both include integrated graphics — Radeon HD 7540D (A6-5400K) and HD Graphics (Sandy Bridge) (Celeron G550) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: A6-5400K targets Budget Desktop, Celeron G550 targets Budget. Direct competitor: A6-5400K rivals Pentium G2120; Celeron G550 rivals Pentium G630.