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 B815 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 B815 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 B815

2012

Why buy it

✅+0.5% higher PassMark.
✅Costs $48 less on MSRP ($86 MSRP vs $134 MSRP).
✅Delivers 56.6% more PassMark for each dollar spent, at 24.3 vs 15.5 PassMark/$ ($86 MSRP vs $134 MSRP).

Trade-offs

❌Smaller total L3 cache (2 MB vs 3 MB).
❌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).
✅Includes a boxed cooler (Yes), unlike Celeron B815.

Trade-offs

❌Lower PassMark (2,082 vs 2,093).
❌Lower PassMark per dollar, at 15.5 vs 24.3 PassMark/$ ($134 MSRP vs $86 MSRP).

Quick Answers

So, is Celeron B815 better than Core i3-2125?

It depends on what you want from the system. For gaming, Core i3-2125 is ahead with a 0.4% average FPS lead across 50 shared CPU game tests in our data. For rendering, compiling, streaming, and heavier multitasking, Celeron B815 pulls ahead with 0.5% better PassMark. Core i3-2125 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, Celeron B815 is the stronger fit. You are getting 0.5% better PassMark, backed by 2 cores and 2 threads.

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

Celeron B815 is the better buy right now. Celeron B815 comes in $48 cheaper on MSRP at $86 MSRP versus $134 MSRP, and it still gives you 0.5% better PassMark. The compromise is that Core i3-2125 is still the better pure gaming CPU with a 0.4% average FPS lead across 50 shared CPU game tests in our data. It is also 56.6% better value on MSRP (24.3 vs 15.5 PassMark/$), 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 B815 makes more sense long term for 2026 and beyond. You are getting a newer CPU generation (2012 vs 2011) and more multi-core headroom with 2 cores / 2 threads instead of 2/4. That extra compute headroom is more likely to matter as games, background tasks, and creator workloads get heavier.

Celeron B815 vs Core i3-2125 Technical Specifications

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

Celeron B815

The Celeron B815 is manufactured by Intel. It was released in 1 January 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.6 GHz, with boost up to 1.6 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 2,093 points. Launch price was $86.

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 B815 packs 2 cores / 2 threads, matching the Core i3-2125's 2 cores. Boost clocks reach 1.6 GHz on the Celeron B815 versus 3.3 GHz on the Core i3-2125 — a 69.4% clock advantage for the Core i3-2125 (base: 1.6 GHz vs 3.3 GHz). Both are built on the Sandy Bridge (2011−2013) architecture using a 32 nm process. In PassMark, the Celeron B815 scores 2,093 against the Core i3-2125's 2,082 — a 0.5% lead for the Celeron B815. L3 cache: 2 MB (total) on the Celeron B815 vs 3 MB (total) on the Core i3-2125.

Feature	Celeron B815	Core i3-2125
Cores / Threads	2 / 2	2 / 4
Boost Clock	1.6 GHz	3.3 GHz+106%
Base Clock	1.6 GHz	3.3 GHz+106%
L3 Cache	2 MB (total)	3 MB (total)+50%
L2 Cache	256K (per core)	256 kB (per core)
Process	32 nm	32 nm
Architecture	Sandy Bridge (2011−2013)	Sandy Bridge (2011−2013)
PassMark	2,093	2,082
Geekbench 6 Single	—	499

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Memory & Platform

The Celeron B815 uses the PGA988 socket (PCIe 2.0), while the Core i3-2125 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1333 memory speed. 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. Both provide 16 PCIe lanes. Chipset compatibility: HM65,HM67,QM67,QM77 (Celeron B815) and H61,H67,P67,Z68,B65,Q65,Q67,B75,Q75,H77,Z75,Z77 (Core i3-2125).

Feature	Celeron B815	Core i3-2125
Socket	PGA988	LGA1155
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1333	DDR3-1333
Max RAM Capacity	16 GB	32 GB+100%
RAM Channels	2	2
ECC Support	No	No
PCIe Lanes	16	16

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Advanced Features

Neither processor supports overclocking. Virtualization support: VT-x (Celeron B815) vs VT-x, EPT (Core i3-2125). Both include integrated graphics — HD Graphics (Sandy Bridge) (Celeron B815) and HD Graphics 3000 (Core i3-2125) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron B815 targets Budget, Core i3-2125 targets Budget Desktop. Direct competitor: Celeron B815 rivals Pentium 967; Core i3-2125 rivals A8-3850.

Feature	Celeron B815	Core i3-2125
Integrated GPU	Yes	Yes
IGPU Model	HD Graphics (Sandy Bridge)	HD Graphics 3000
Unlocked	No	No
AVX-512	No	No
Virtualization	VT-x	VT-x, EPT
Target Use	Budget	Budget Desktop

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Value Analysis

At launch, the Celeron B815 was priced at $86, while the Core i3-2125 came in at $134. On launch pricing ($86 vs $134), Celeron B815 was $48 cheaper. In terms of value on MSRP (PassMark points per dollar), the Celeron B815 delivers 24.3 pts/$ vs 15.5 pts/$ for the Core i3-2125 — making the Celeron B815 the 44.1% better value option.

Feature	Celeron B815	Core i3-2125
MSRP	$86-36%	$134
Performance per Dollar	24.3+57%	15.5
Release Date	2012	2011

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