Celeron 5305U vs Core i3-3227U

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 5305U vs Core i3-3227U 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 5305U vs Core i3-3227U: Pros, Cons & Final Verdict

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

Celeron 5305U

2020

Why buy it

✅+20% higher Geekbench single-core performance for gaming and desktop responsiveness.
✅Draws 15W instead of 512W, a 497W reduction.

Trade-offs

❌Lower Geekbench multi-core (865 vs 900).
❌Smaller total L3 cache (2 MB vs 3 MB).

Core i3-3227U

2013

Why buy it

✅+4% higher Geekbench multi-core.
✅+50% larger total L3 cache (3 MB vs 2 MB).
✅33.3% more PCIe lanes (16 vs 12) for storage and expansion-heavy builds.

Trade-offs

❌Lower Geekbench single-core performance for gaming (400 vs 480).
❌3313.3% higher power demand at 512W vs 15W.

Quick Answers

So, is Celeron 5305U better than Core i3-3227U?

It depends on what you want from the system. For gaming, Celeron 5305U is ahead with a 2.8% average FPS lead across 34 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Core i3-3227U pulls ahead with 4% better Geekbench multi-core. Core i3-3227U also has the bigger cache pool with 50% larger total L3 cache (3 MB vs 2 MB).

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

For streaming, content creation, and heavier multitasking, Core i3-3227U is the stronger fit. You are getting 4% better Geekbench multi-core, backed by 2 cores and 4 threads. It also has the larger cache pool with 50% larger total L3 cache (3 MB vs 2 MB).

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

Celeron 5305U still makes the most sense overall. Celeron 5305U comes in at an unclear MSRP at unclear MSRP versus unclear MSRP, and it still gives you a 2.8% average FPS lead across 34 shared CPU game tests in our data.

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

Celeron 5305U makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2020 vs 2013). That makes it the safer long-term bet.

Celeron 5305U vs Core i3-3227U Technical Specifications

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

Celeron 5305U

The Celeron 5305U is manufactured by Intel. It was released in 2007-01-01. It is based on the Comet Lake-U (2019−2020) architecture. It features 2 cores and 2 threads. Base frequency is 2.3 GHz, with boost up to 2.3 GHz. L3 cache: 2 MB. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2400, LPDDR3-2133. Passmark benchmark score: 1,307 points. Launch price was $69.

Core i3-3227U

The Core i3-3227U is manufactured by Intel. It was released in 8 January 2013 (12 years ago). It is based on the Ivy Bridge (2012−2013) architecture. It features 2 cores and 4 threads. Base frequency is 1.9 GHz, with boost up to 1.9 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: BGA1023. Thermal design power (TDP): 17 Watt. Memory support: DDR3. Passmark benchmark score: 1,299 points. Launch price was $225.

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Processing Power

The Celeron 5305U packs 2 cores / 2 threads, matching the Core i3-3227U's 2 cores. Boost clocks reach 2.3 GHz on the Celeron 5305U versus 1.9 GHz on the Core i3-3227U — a 19% clock advantage for the Celeron 5305U (base: 2.3 GHz vs 1.9 GHz). The Celeron 5305U uses the Comet Lake-U (2019−2020) architecture (14 nm), while the Core i3-3227U uses Ivy Bridge (2012−2013) (22 nm). In PassMark, the Celeron 5305U scores 1,307 against the Core i3-3227U's 1,299 — a 0.6% lead for the Celeron 5305U. Geekbench 6 single-core — the metric most relevant to gaming — records 480 vs 400, a 18.2% lead for the Celeron 5305U that directly translates to higher frame rates. Multi-core Geekbench: 865 vs 900 (4% advantage for the Core i3-3227U). L3 cache: 2 MB on the Celeron 5305U vs 3 MB (total) on the Core i3-3227U.

Feature	Celeron 5305U	Core i3-3227U
Cores / Threads	2 / 2	2 / 4
Boost Clock	2.3 GHz+21%	1.9 GHz
Base Clock	2.3 GHz+21%	1.9 GHz
L3 Cache	2 MB	3 MB (total)+50%
L2 Cache	—	256K (per core)
Process	14 nm-36%	22 nm
Architecture	Comet Lake-U (2019−2020)	Ivy Bridge (2012−2013)
PassMark	1,307	1,299
Geekbench 6 Single	480+20%	400
Geekbench 6 Multi	865	900+4%

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Memory & Platform

The Celeron 5305U uses the FCBGA1528 socket (PCIe 3.0), while the Core i3-3227U uses BGA1023 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Celeron 5305U versus DDR3-1600 on the Core i3-3227U — the Celeron 5305U supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 5305U supports up to 64 GB of RAM compared to 32 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Celeron 5305U) vs 16 (Core i3-3227U) — the Core i3-3227U offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Comet Lake-U (Celeron 5305U) and HM77,HM76 (Core i3-3227U).

Feature	Celeron 5305U	Core i3-3227U
Socket	FCBGA1528	BGA1023
PCIe Generation	PCIe 3.0	PCIe 3.0
Max RAM Speed	DDR4-2400+50%	DDR3-1600
Max RAM Capacity	64 GB+100%	32 GB
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	12	16+33%

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Advanced Features

Neither processor supports overclocking. Both support VT-x, VT-d virtualization. Both include integrated graphics — UHD Graphics (Comet Lake) (Celeron 5305U) and Intel HD Graphics 4000 (Core i3-3227U) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 5305U targets Budget, Core i3-3227U targets Legacy Ultrabook. Direct competitor: Celeron 5305U rivals Pentium Gold 6405U; Core i3-3227U rivals AMD A6-4455M.

Feature	Celeron 5305U	Core i3-3227U
Integrated GPU	Yes	Yes
IGPU Model	UHD Graphics (Comet Lake)	Intel HD Graphics 4000
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x, VT-d	VT-x, VT-d
Target Use	Budget	Legacy Ultrabook