Core i3-2125 vs Celeron B815

Core i3-2125

2 Cores4 Thrd65 WWMax: 3.3 GHz2011

Celeron B815

2 Cores2 Thrd0 WWMax: 1.6 GHz2012

Performance Spectrum - CPU

Core i3-2125

2 / 4

2,082

0.0%

2,093

+0.5%

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.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Core i3-2125 is positioned at rank 892 and the Celeron B815 is on rank 799, so the Celeron B815 offers better cost-efficiency for playing games.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Core i3-2125

Ryzen 9 7950X

MSRP: $194|Avg: $20

20059%

Core i9-10900T

MSRP: $120|Avg: $5

18954%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

13762%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

4146%

Ryzen 9 9950X

MSRP: $649|Avg: $129

3284%

Ryzen 5 8400F

MSRP: $303|Avg: $55

2873%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

1645%

Ryzen 5 2600X

MSRP: $229|Avg: $55

1624%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

1479%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

1479%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

1462%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

1423%

#13

Core i3-9100E

MSRP: $202|Avg: $30

1403%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

1397%

#15

Core i3-8300T

MSRP: $138|Avg: $25

1384%

#299

Core i9-7980XE

MSRP: $1999|Avg: $300

95%

#891

Pentium G6951

MSRP: $89|Avg: $50

100%

#892

Core i3-2125

MSRP: $134|Avg: $15

100%

#894

Celeron G1820

MSRP: $110|Avg: $15

99%

#895

Celeron E1600

MSRP: $53|Avg: $10

99%

#896

Athlon II X2 270u

MSRP: $68|Avg: $10

99%

#897

Core i5-4570TE

MSRP: $202|Avg: $40

98%

#898

Core i3-2130

MSRP: $138|Avg: $138

96%

#901

Core i3-6100E

MSRP: $225|Avg: $50

95%

#902

Core i3-4330TE

MSRP: $138|Avg: $15

94%

#903

Pentium E5700

MSRP: $75|Avg: $15

94%

#905

Athlon II X3 420e

MSRP: $107|Avg: $15

94%

#906

Celeron E1500

MSRP: $53|Avg: $5

93%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Celeron B815

#786

Atom x5-Z8300

MSRP: $20|Avg: N/A

1205%

#787

Atom Z3735G

MSRP: $17|Avg: N/A

1188%

#788

Core i5-480M

MSRP: $81|Avg: $77

1090%

#789

Core i5-460M

MSRP: $80|Avg: $129

1085%

#790

Core i5-2540M

MSRP: $266|Avg: $10

1076%

#792

Core i5-450M

MSRP: $32|Avg: $31

1039%

#793

Core i3-380M

MSRP: $49|Avg: $25

996%

#794

Core i5-430M

MSRP: N/A|Avg: $33

994%

#795

Core 2 Duo T6600

MSRP: N/A|Avg: $4

968%

#799

Celeron B815

MSRP: $86|Avg: $15

100%

#800

Celeron B810

MSRP: $86|Avg: $86

100%

#802

Core i7-1365UE

MSRP: $429|Avg: $429

99%

#804

3020e

MSRP: $100|Avg: $25

99%

#808

Athlon II M320

MSRP: $75|Avg: $15

98%

#809

Celeron B800

MSRP: $80|Avg: $5

98%

#810

Celeron B710

MSRP: $86|Avg: $10

98%

#812

Athlon II Neo K345

MSRP: $50|Avg: $10

98%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Trade-off: The Core i3-2125 leads in gaming performance. However, the Celeron B815 is the stronger candidate for professional workloads, offering 0.5% greater multi-core processing power.

Insight	Core i3-2125	Celeron B815
Gaming	✅ Superior gaming performance	❌ Lower gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm)	🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm)

💎 Value Proposition

Efficiency: Even within a comparison of older hardware, the Celeron B815 stands out as the superior choice. It is effectively 0% cheaper ($15 vs $15) while identifying as the stronger performer.

Insight	Core i3-2125	Celeron B815
Cost Efficiency	❌ Lower cost efficiency	✅ Better overall value (+1%)
Upfront Cost	Equivalent pricing	Equivalent pricing

Performance Check

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Core i3-2125 Benchmark Check

Celeron B815 Benchmark Check

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Core i3-2125 and Celeron B815

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.

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.

⚡

Processing Power

The Core i3-2125 packs 2 cores / 4 threads, matching the Celeron B815's 2 cores. Boost clocks reach 3.3 GHz on the Core i3-2125 versus 1.6 GHz on the Celeron B815 — a 69.4% clock advantage for the Core i3-2125 (base: 3.3 GHz vs 1.6 GHz). Both are built on the Sandy Bridge (2011−2013) architecture using a 32 nm process. In PassMark, the Core i3-2125 scores 2,082 against the Celeron B815's 2,093 — a 0.5% lead for the Celeron B815. L3 cache: 3 MB (total) on the Core i3-2125 vs 2 MB (total) on the Celeron B815.

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

🧠

Memory & Platform

The Core i3-2125 uses the LGA1155 socket (PCIe 2.0), while the Celeron B815 uses PGA988 (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 — 66.7% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: H61,H67,P67,Z68,B65,Q65,Q67,B75,Q75,H77,Z75,Z77 (Core i3-2125) and HM65,HM67,QM67,QM77 (Celeron B815).

Feature	Core i3-2125	Celeron B815
Socket	LGA1155	PGA988
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3-1333	DDR3-1333
Max RAM Capacity	32 GB+100%	16 GB
RAM Channels	2	2
ECC Support	❌	❌
PCIe Lanes	16	16

🔧

Advanced Features

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

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

💰

Value Analysis

The Core i3-2125 launched at $134 MSRP, while the Celeron B815 debuted at $86. At current prices ($15 vs $15), the Celeron B815 is $0 cheaper. In terms of value (PassMark points per dollar), the Core i3-2125 delivers 138.8 pts/$ vs 139.5 pts/$ for the Celeron B815 — making the Celeron B815 the 0.5% better value option.