Celeron 2957U vs Celeron B815

CPU

GPU

Celeron 2957U

2 Cores2 Thrd512 WWMax: 1.4 GHz2014

Celeron B815

2 Cores2 Thrd0 WWMax: 1.6 GHz2012

Performance Spectrum - CPU

Celeron 2957U

2 / 2

2,077

0.0%

2,093

+0.8%

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 2957U is positioned at rank 53 and the Celeron B815 is on rank 799, so the Celeron 2957U 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 2957U

#13

Ryzen 3 210

MSRP: $99|Avg: $99

96%

#14

Ryzen 5 PRO 230

MSRP: $150|Avg: $150

95%

#41

Atom x5-Z8300

MSRP: $20|Avg: N/A

212%

#42

Atom Z3735G

MSRP: $17|Avg: N/A

209%

#43

Core i5-480M

MSRP: $81|Avg: $77

192%

#44

Core i5-460M

MSRP: $80|Avg: $129

191%

#45

Core i5-2540M

MSRP: $266|Avg: $10

189%

#47

Core i5-450M

MSRP: $32|Avg: $31

183%

#48

Core i3-380M

MSRP: $49|Avg: $25

175%

#49

Core i5-430M

MSRP: N/A|Avg: $33

175%

#50

Core 2 Duo T6600

MSRP: N/A|Avg: $4

170%

#53

Celeron 2957U

MSRP: N/A|Avg: N/A

100%

#65

Core i5-3320M

MSRP: $225|Avg: N/A

96%

#66

Core i7-4510U

MSRP: $393|Avg: N/A

95%

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 Leadership: The Celeron B815 delivers superior performance across the board. It outperforms the Celeron 2957U in both compute-intensive tasks (0.8% faster) and gaming workloads.

Insight	Celeron 2957U	Celeron B815
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	✅ More affordable ($0)	⚠️ Higher cost ($15)
Longevity	🛑 Legacy (Haswell (2013−2015) / 22 nm)	🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm)

💎 Value Proposition

Insight	Celeron 2957U	Celeron B815
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
Upfront Cost	✅ More affordable ($0)	⚠️ Higher cost ($15)

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 2957U Benchmark Check

Celeron B815 Benchmark Check

Technical Specifications

Side-by-side comparison of Celeron 2957U and Celeron B815

Celeron 2957U

The Celeron 2957U is manufactured by Intel. It was released in 1 January 2014 (11 years ago). 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. L2 cache: 512 kB. Built on 22 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 15 Watt. Memory support: DDR3. Passmark benchmark score: 2,077 points. Launch price was $107.

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

Both the Celeron 2957U and Celeron B815 share an identical 2-core/2-thread configuration. Boost clocks reach 1.4 GHz on the Celeron 2957U versus 1.6 GHz on the Celeron B815 — a 13.3% clock advantage for the Celeron B815 (base: 1.4 GHz vs 1.6 GHz). The Celeron 2957U uses the Haswell (2013−2015) architecture (22 nm), while the Celeron B815 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Celeron 2957U scores 2,077 against the Celeron B815's 2,093 — a 0.8% lead for the Celeron B815. L3 cache: 2 MB on the Celeron 2957U vs 2 MB (total) on the Celeron B815.

Feature	Celeron 2957U	Celeron B815
Cores / Threads	2 / 2	2 / 2
Boost Clock	1.4 GHz	1.6 GHz+14%
Base Clock	1.4 GHz	1.6 GHz+14%
L3 Cache	2 MB	2 MB (total)
L2 Cache	512 kB+100%	256K (per core)
Process	22 nm-31%	32 nm
Architecture	Haswell (2013−2015)	Sandy Bridge (2011−2013)
PassMark	2,077	2,093
Geekbench 6 Single	284	—

🧠

Memory & Platform

The Celeron 2957U uses the FCBGA1168 socket (PCIe 3.0), while the Celeron B815 uses PGA988 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3L-1600 memory speed. Both support up to 16 GB of RAM. Both feature 2-channel memory with ECC support. PCIe lanes: 10 (Celeron 2957U) vs 16 (Celeron B815) — the Celeron B815 offers 6 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Wildcat Point-LP (Celeron 2957U) and HM65,HM67,QM67,QM77 (Celeron B815).

Feature	Celeron 2957U	Celeron B815
Socket	FCBGA1168	PGA988
PCIe Generation	PCIe 3.0+50%	PCIe 2.0
Max RAM Speed	DDR3L-1600	DDR3-1333
Max RAM Capacity	16 GB	16 GB
RAM Channels	2	2
ECC Support	❌	❌
PCIe Lanes	10	16+60%

🔧

Advanced Features

Neither processor supports overclocking. Both support VT-x virtualization. Both include integrated graphics — HD Graphics (Haswell) (Celeron 2957U) and HD Graphics (Sandy Bridge) (Celeron B815) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Celeron 2957U targets Budget, Celeron B815 targets Budget. Direct competitor: Celeron 2957U rivals Pentium 2117U; Celeron B815 rivals Pentium 967.