Celeron 2955U vs Core i3-2125

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 2955U vs Core i3-2125 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 2955U vs Core i3-2125: Pros, Cons & Final Verdict

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

Celeron 2955U

2013

Why buy it

Trade-offs

❌Lower PassMark (2,069 vs 2,082).
❌Smaller total L3 cache (2 MB vs 3 MB).
❌687.7% higher power demand at 512W vs 65W.
❌No boxed cooler included, unlike Core i3-2125.

Core i3-2125

2011

Why buy it

✅+50% larger total L3 cache (3 MB vs 2 MB).
✅Draws 65W instead of 512W, a 447W reduction.
✅60% more PCIe lanes (16 vs 10) for storage and expansion-heavy builds.
✅Includes a boxed cooler (Yes), unlike Celeron 2955U.

Trade-offs

❌Launch MSRP is still $134 MSRP, while Celeron 2955U mostly shows up through inconsistent older-market listings.

Quick Answers

So, is Core i3-2125 better than Celeron 2955U?

Yes. Core i3-2125 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 and 0.6% better PassMark, which is enough to make it the stronger overall pick.

Which one is better for gaming?

If gaming is the priority, Core i3-2125 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, Core i3-2125 is the stronger fit. You are getting 0.6% better PassMark, 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?

Core i3-2125 is the better buy right now. Core i3-2125 comes in at an unclear MSRP at $134 MSRP versus unclear MSRP, and it still gives you a 0.6% average FPS lead across 50 shared CPU game tests in our data. It is also 100.0% better value on MSRP (15.5 vs 0.0 PassMark/$), 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 2955U 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 2955U vs Core i3-2125 Technical Specifications

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

Celeron 2955U

The Celeron 2955U is manufactured by Intel. It was released in 2007-01-01. It is based on the Haswell (2013−2015) architecture. It features 2 cores and 2 threads. Base frequency is 1.4 GHz, with boost up to 1.4 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 2,069 points. Launch price was $69.

Core i3-2125

The Core i3-2125 is manufactured by Intel. It was released in 4 September 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 3.3 GHz, with boost up to 3.3 GHz. L3 cache: 3 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: 2,082 points. Launch price was $170.

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Processing Power

The Celeron 2955U packs 2 cores / 2 threads, matching the Core i3-2125's 2 cores. Boost clocks reach 1.4 GHz on the Celeron 2955U versus 3.3 GHz on the Core i3-2125 — a 80.9% clock advantage for the Core i3-2125 (base: 1.4 GHz vs 3.3 GHz). The Celeron 2955U uses the Haswell (2013−2015) architecture (22 nm), while the Core i3-2125 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Celeron 2955U scores 2,069 against the Core i3-2125's 2,082 — a 0.6% lead for the Core i3-2125. L3 cache: 2 MB (total) on the Celeron 2955U vs 3 MB (total) on the Core i3-2125.

Feature	Celeron 2955U	Core i3-2125
Cores / Threads	2 / 2	2 / 4
Boost Clock	1.4 GHz	3.3 GHz+136%
Base Clock	1.4 GHz	3.3 GHz+136%
L3 Cache	2 MB (total)	3 MB (total)+50%
L2 Cache	256K (per core)	256 kB (per core)
Process	22 nm-31%	32 nm
Architecture	Haswell (2013−2015)	Sandy Bridge (2011−2013)
PassMark	2,069	2,082
Geekbench 6 Single	—	499

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Memory & Platform

The Celeron 2955U uses the FCBGA1168 socket (PCIe 3.0), while the Core i3-2125 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1600 on the Celeron 2955U versus DDR3-1333 on the Core i3-2125 — the Celeron 2955U supports 20% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i3-2125 supports up to 32 GB of RAM compared to 16 GB — 100% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 10 (Celeron 2955U) vs 16 (Core i3-2125) — the Core i3-2125 offers 6 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Wildcat Point-LP (Celeron 2955U) and H61,H67,P67,Z68,B65,Q65,Q67,B75,Q75,H77,Z75,Z77 (Core i3-2125).

Feature	Celeron 2955U	Core i3-2125
Socket	FCBGA1168	LGA1155
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR3L-1600+20%	DDR3-1333
Max RAM Capacity	16 GB	32 GB+100%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	10	16+60%

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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x (Celeron 2955U) vs VT-x, EPT (Core i3-2125). Both include integrated graphics — HD Graphics (Haswell) (Celeron 2955U) and HD Graphics 3000 (Core i3-2125) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 2955U targets Budget, Core i3-2125 targets Budget Desktop. Direct competitor: Celeron 2955U rivals Pentium 2117U; Core i3-2125 rivals A8-3850.