Celeron B815 vs Celeron M 900

Celeron B815

2 Cores2 Thrd0 WWMax: 1.6 GHz2012

Celeron M 900

1 Cores1 Thrd1 WWMax: 2.2 GHz2009

Performance Spectrum - CPU

Celeron B815

2 / 2

2,093

0.0%

2,101

+0.4%

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 Celeron B815 is positioned at rank 799 and the Celeron M 900 is on rank 797, so the Celeron M 900 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 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 Per Dollar Celeron M 900

#785

Atom x5-Z8300

MSRP: $20|Avg: N/A

1201%

#786

Atom Z3735G

MSRP: $17|Avg: N/A

1183%

#787

Core i5-480M

MSRP: $81|Avg: $77

1086%

#788

Core i5-460M

MSRP: $80|Avg: $129

1081%

#789

Core i5-2540M

MSRP: $266|Avg: $10

1072%

#791

Core i5-450M

MSRP: $32|Avg: $31

1035%

#792

Core i3-380M

MSRP: $49|Avg: $25

992%

#793

Core i5-430M

MSRP: N/A|Avg: $33

991%

#794

Core 2 Duo T6600

MSRP: N/A|Avg: $4

964%

#797

Celeron M 900

MSRP: $86|Avg: $10

100%

#799

Celeron B815

MSRP: $86|Avg: $15

100%

#801

Celeron B810

MSRP: $86|Avg: $86

100%

#803

Core i7-1365UE

MSRP: $429|Avg: $429

99%

#805

3020e

MSRP: $100|Avg: $25

98%

#809

Athlon II M320

MSRP: $75|Avg: $15

98%

#810

Celeron B800

MSRP: $80|Avg: $5

98%

#811

Celeron B710

MSRP: $86|Avg: $10

98%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Celeron M 900 delivers superior performance across the board. It outperforms the Celeron B815 in both compute-intensive tasks (0.4% faster) and gaming workloads.

Insight	Celeron B815	Celeron M 900
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($15)	✅ More affordable ($10)
Longevity	🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm)	🛑 Legacy (Penryn (2008−2011) / 45 nm)

💎 Value Proposition

Efficiency: Even within a comparison of older hardware, the Celeron M 900 stands out as the superior choice. It is effectively 33% cheaper ($10 vs $15) while identifying as the stronger performer.

Insight	Celeron B815	Celeron M 900
Cost Efficiency	❌ Lower cost efficiency	✅ Better overall value (+51%)
Upfront Cost	⚠️ Higher cost ($15)	✅ More affordable ($10)

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.

Celeron B815 Benchmark Check

Celeron M 900 Benchmark Check

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Celeron B815 and Celeron M 900

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.

Celeron M 900

The Celeron M 900 is manufactured by Intel. It was released in 1 April 2009 (16 years ago). It is based on the Penryn (2008−2011) architecture. It features 1 cores and 1 threads. Max frequency: 2.2 GHz. L2 cache: 1 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 1 MB. Passmark benchmark score: 2,101 points. Launch price was $70.

⚡

Processing Power

The Celeron B815 packs 2 cores / 2 threads, while the Celeron M 900 offers 1 cores / 1 threads — the Celeron B815 has 1 more core. Boost clocks reach 1.6 GHz on the Celeron B815 versus 2.2 GHz on the Celeron M 900 — a 31.6% clock advantage for the Celeron M 900. The Celeron B815 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Celeron M 900 uses Penryn (2008−2011) (45 nm). In PassMark, the Celeron B815 scores 2,093 against the Celeron M 900's 2,101 — a 0.4% lead for the Celeron M 900.

Feature	Celeron B815	Celeron M 900
Cores / Threads	2 / 2+100%	1 / 1
Boost Clock	1.6 GHz	2.2 GHz+38%
Base Clock	1.6 GHz	—
L3 Cache	2 MB (total)	—
L2 Cache	256K (per core)	1 MB+300%
Process	32 nm-29%	45 nm
Architecture	Sandy Bridge (2011−2013)	Penryn (2008−2011)
PassMark	2,093	2,101

🧠

Memory & Platform

The Celeron B815 uses the PGA988 socket (PCIe 2.0), while the Celeron M 900 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.

Feature	Celeron B815	Celeron M 900
Socket	PGA988	PGA478
PCIe Generation	PCIe 2.0+82%	PCIe 1.1
Max RAM Speed	DDR3-1333	—
Max RAM Capacity	16 GB	—
RAM Channels	2	—
ECC Support	❌	—
PCIe Lanes	16	—

🔧

Advanced Features

Virtualization: VT-x (Celeron B815) / not specified (Celeron M 900). The Celeron B815 includes integrated graphics (HD Graphics (Sandy Bridge)), while the Celeron M 900 requires a dedicated GPU. Primary use case: Celeron B815 targets Budget. Direct competitor: Celeron B815 rivals Pentium 967.

Feature	Celeron B815	Celeron M 900
Integrated GPU	Yes	—
IGPU Model	HD Graphics (Sandy Bridge)	—
Unlocked	No	—
AVX-512	No	—
Virtualization	VT-x	—
Target Use	Budget	—

💰

Value Analysis

The Celeron B815 launched at $86 MSRP, while the Celeron M 900 debuted at $86. At current prices ($15 vs $10), the Celeron M 900 is $5 cheaper. In terms of value (PassMark points per dollar), the Celeron B815 delivers 139.5 pts/$ vs 210.1 pts/$ for the Celeron M 900 — making the Celeron M 900 the 40.4% better value option.