Celeron G555 vs Celeron N4000C

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 G555 vs Celeron N4000C 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 G555 vs Celeron N4000C: Pros, Cons & Final Verdict

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

Celeron G555

2012

Why buy it

✅100+% more PCIe lanes (16 vs 0) for storage and expansion-heavy builds.
✅Integrated graphics onboard with Intel HD Graphics (Sandy Bridge), while Celeron N4000C needs a discrete GPU.
✅Includes a boxed cooler (Intel Stock), unlike Celeron N4000C.

Trade-offs

❌Lower PassMark (1,427 vs 1,430).
❌Smaller total L3 cache (2 MB vs 4 MB).
❌Launch MSRP is still $52 MSRP, while Celeron N4000C mostly shows up through inconsistent older-market listings.
❌983.3% higher power demand at 65W vs 6W.

Celeron N4000C

2019

Why buy it

✅+0.2% higher PassMark.
✅+100% larger total L3 cache (4 MB vs 2 MB).
✅Draws 6W instead of 65W, a 59W reduction.

Trade-offs

❌No integrated graphics, while Celeron G555 can still boot and troubleshoot without a discrete GPU.
❌No boxed cooler included, unlike Celeron G555.

Quick Answers

So, is Celeron N4000C better than Celeron G555?

It depends on what you want from the system. For gaming, Celeron G555 is ahead with a 0.5% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Celeron N4000C pulls ahead with 0.2% better PassMark. Celeron N4000C also has the bigger cache pool with 100% larger total L3 cache (4 MB vs 2 MB).

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

For streaming, content creation, and heavier multitasking, Celeron N4000C is the stronger fit. You are getting 0.2% better PassMark, backed by 2 cores and 2 threads. It also has the larger cache pool with 100% larger total L3 cache (4 MB vs 2 MB).

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

Celeron N4000C is still the much better call for a fresh build. Celeron N4000C comes in at an unclear MSRP at unclear MSRP versus $52 MSRP, and it still gives you 0.2% better PassMark. Celeron G555 only looks stronger on raw value math because it is extremely cheap, but that usually means used-market pricing on an obsolete 2012 platform. Even with 100.0% better value on paper (27.4 vs 0.0 PassMark/$), 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?

Celeron N4000C makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2019 vs 2012), 100% larger total L3 cache (4 MB vs 2 MB), and 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.

Celeron G555 vs Celeron N4000C Technical Specifications

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

Celeron G555

The Celeron G555 is manufactured by Intel. It was released in 1 September 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.7 GHz, with boost up to 2.7 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: 1,427 points. Launch price was $89.

Celeron N4000C

The Celeron N4000C is manufactured by Intel. It was released in 2007-01-01. It features 2 cores and 2 threads. Base frequency is 1.1 GHz, with boost up to 2.6 GHz. L3 cache: 4 MB. Built on 14 nm process technology. Socket: FCBGA1090. Thermal design power (TDP): 6 Watt. Memory support: DDR4/LPDDR4 up to 2400 MT/s. Passmark benchmark score: 1,430 points. Launch price was $69.

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Processing Power

Both the Celeron G555 and Celeron N4000C share an identical 2-core/2-thread configuration. Boost clocks reach 2.7 GHz on the Celeron G555 versus 2.6 GHz on the Celeron N4000C — a 3.8% clock advantage for the Celeron G555 (base: 2.7 GHz vs 1.1 GHz). The Celeron G555 is built on the Sandy Bridge (2011−2013) architecture. In PassMark, the Celeron G555 scores 1,427 against the Celeron N4000C's 1,430 — a 0.2% lead for the Celeron N4000C. L3 cache: 2 MB (total) on the Celeron G555 vs 4 MB on the Celeron N4000C.

Feature	Celeron G555	Celeron N4000C
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.7 GHz+4%	2.6 GHz
Base Clock	2.7 GHz+145%	1.1 GHz
L3 Cache	2 MB (total)	4 MB+100%
L2 Cache	256 kB (per core)	—
Process	32 nm	14 nm-56%
Architecture	Sandy Bridge (2011−2013)	—
PassMark	1,427	1,430
Geekbench 6 Single	398	—
Geekbench 6 Multi	742	—

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Memory & Platform

The Celeron G555 uses the LGA1155 socket (PCIe 2.0), while the Celeron N4000C uses FCBGA1090 (PCIe 3.0) — making them incompatible on the same motherboard.

Feature	Celeron G555	Celeron N4000C
Socket	LGA1155	FCBGA1090
PCIe Generation	PCIe 2.0	PCIe 3.0+50%
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	32 GB	—
RAM Channels	2	—
ECC Support	No	—
PCIe Lanes	16	—

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Advanced Features

Virtualization: VT-x (Celeron G555) / not specified (Celeron N4000C). The Celeron G555 includes integrated graphics (Intel HD Graphics (Sandy Bridge)), while the Celeron N4000C requires a dedicated GPU. Primary use case: Celeron G555 targets Desktop. Direct competitor: Celeron G555 rivals Pentium G630.