Atom E3815 vs Atom Z670

Atom E3815

1 Cores1 Thrd512 WWMax: 1.47 GHz2013

Atom Z670

1 Cores2 Thrd3 WWMax: 1.5 GHz2011

Performance Spectrum - CPU

Atom E3815

1 / 1

365

0.0%

375

+2.7%

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 Atom E3815 is positioned at rank 1103 and the Atom Z670 is on rank 1095, so the Atom Z670 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 Atom E3815

#1091

Atom x5-Z8300

MSRP: $20|Avg: N/A

3214%

#1092

Atom Z3735G

MSRP: $17|Avg: N/A

3166%

#1093

Core i5-480M

MSRP: $81|Avg: $77

2907%

#1094

Core i5-460M

MSRP: $80|Avg: $129

2894%

#1095

Core i5-2540M

MSRP: $266|Avg: $10

2867%

#1097

Core i5-450M

MSRP: $32|Avg: $31

2769%

#1098

Core i3-380M

MSRP: $49|Avg: $25

2655%

#1099

Core i5-430M

MSRP: N/A|Avg: $33

2651%

#1100

Core 2 Duo T6600

MSRP: N/A|Avg: $4

2579%

#1103

Atom E3815

MSRP: N/A|Avg: N/A

100%

#1104

Pentium 997

MSRP: $134|Avg: $10

99%

#1105

Pentium A1018

MSRP: $132|Avg: $15

99%

#1106

Core i5-2430M

MSRP: $225|Avg: N/A

98%

#1108

Pentium Dual Core T4500

MSRP: $150|Avg: $30

98%

#1109

Celeron B820

MSRP: $86|Avg: $15

97%

#1110

Pentium B980

MSRP: $125|Avg: $35

96%

#1111

Celeron 867

MSRP: $86|Avg: $15

96%

#1112

Pentium B970

MSRP: $125|Avg: $39

96%

#1113

Core i5-2410M

MSRP: $225|Avg: N/A

95%

#1114

Pentium T2370

MSRP: $86|Avg: $10

95%

#1115

Pentium N3710

MSRP: $161|Avg: $50

94%

#1116

Core m3-7Y30

MSRP: $281|Avg: $281

94%

#1117

Pentium 977

MSRP: $134|Avg: $10

94%

#1118

Core i7-2715QE

MSRP: $378|Avg: $50

93%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Atom Z670

#1083

Atom x5-Z8300

MSRP: $20|Avg: N/A

3128%

#1084

Atom Z3735G

MSRP: $17|Avg: N/A

3082%

#1085

Core i5-480M

MSRP: $81|Avg: $77

2829%

#1086

Core i5-460M

MSRP: $80|Avg: $129

2817%

#1087

Core i5-2540M

MSRP: $266|Avg: $10

2791%

#1089

Core i5-450M

MSRP: $32|Avg: $31

2695%

#1090

Core i3-380M

MSRP: $49|Avg: $25

2584%

#1091

Core i5-430M

MSRP: N/A|Avg: $33

2580%

#1092

Core 2 Duo T6600

MSRP: N/A|Avg: $4

2511%

#1095

Atom Z670

MSRP: N/A|Avg: N/A

100%

#1096

Core i7-2635QM

MSRP: $378|Avg: N/A

100%

#1097

Celeron 877

MSRP: $86|Avg: $15

100%

#1098

Celeron Dual-Core SU2300

MSRP: $134|Avg: $50

99%

#1099

Core i5-3337U

MSRP: $225|Avg: N/A

99%

#1100

Core i5-2450M

MSRP: $225|Avg: N/A

98%

#1101

Core i5-7Y57

MSRP: $281|Avg: $281

98%

#1102

Core i5-7Y54

MSRP: $281|Avg: $100

98%

#1104

Pentium 997

MSRP: $134|Avg: $10

97%

#1105

Pentium A1018

MSRP: $132|Avg: $15

96%

#1106

Core i5-2430M

MSRP: $225|Avg: N/A

96%

#1108

Pentium Dual Core T4500

MSRP: $150|Avg: $30

95%

#1109

Celeron B820

MSRP: $86|Avg: $15

95%

#1110

Pentium B980

MSRP: $125|Avg: $35

94%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Performance Leadership: The Atom Z670 delivers superior performance across the board. It outperforms the Atom E3815 in both compute-intensive tasks (2.7% faster) and gaming workloads.

Insight	Atom E3815	Atom Z670
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	Equivalent pricing	Equivalent pricing
Longevity	🛑 Legacy (Bay Trail-I (2013) / 22 nm)	🛑 Legacy (Lincroft (2010−2011) / 45 nm)

💎 Value Proposition

Insight	Atom E3815	Atom Z670
Cost Efficiency	❌ Lower cost efficiency	❌ Lower cost efficiency
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.

Atom E3815 Benchmark Check

Atom Z670 Benchmark Check

Technical Specifications

Side-by-side comparison of Atom E3815 and Atom Z670

Atom E3815

The Atom E3815 is manufactured by Intel. It was released in 8 October 2013 (12 years ago). It is based on the Bay Trail-I (2013) architecture. It features 1 cores and 1 threads. Max frequency: 1.47 GHz. L3 cache: 0 kB. L2 cache: 512 kB (per core). Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 512 kB. Memory support: DDR3. Passmark benchmark score: 365 points. Launch price was $134.

Atom Z670

The Atom Z670 is manufactured by Intel. It was released in 11 April 2011 (14 years ago). It is based on the Lincroft (2010−2011) architecture. It features 1 cores and 2 threads. Base frequency is 1.5 GHz, with boost up to 1.5 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 45 nm process technology. Socket: T-PBGA518. Thermal design power (TDP): 3 Watt. Memory support: DDR2. Passmark benchmark score: 375 points. Launch price was $75.

⚡

Processing Power

The Atom E3815 packs 1 cores / 1 threads, matching the Atom Z670's 1 cores. Boost clocks reach 1.47 GHz on the Atom E3815 versus 1.5 GHz on the Atom Z670 — a 2% clock advantage for the Atom Z670. The Atom E3815 uses the Bay Trail-I (2013) architecture (22 nm), while the Atom Z670 uses Lincroft (2010−2011) (45 nm). In PassMark, the Atom E3815 scores 365 against the Atom Z670's 375 — a 2.7% lead for the Atom Z670. Both processors carry 0 kB of L3 cache.

Feature	Atom E3815	Atom Z670
Cores / Threads	1 / 1	1 / 2
Boost Clock	1.47 GHz	1.5 GHz+2%
Base Clock	—	1.5 GHz
L3 Cache	0 kB	0 kB
L2 Cache	512 kB (per core)	512K (per core)
Process	22 nm-51%	45 nm
Architecture	Bay Trail-I (2013)	Lincroft (2010−2011)
PassMark	365	375+3%

🧠

Memory & Platform

The Atom E3815 uses the FCBGA1170 socket (PCIe 2.0), while the Atom Z670 uses T-PBGA518 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3L-1066 on the Atom E3815 versus DDR2-800 on the Atom Z670 — the Atom E3815 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom E3815 supports up to 8 GB of RAM compared to 2 GB — 120% more capacity for professional workloads. Both feature 1-channel memory with ECC support. PCIe lanes: 4 (Atom E3815) vs 0 (Atom Z670) — the Atom E3815 offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel FCBGA1170 (Atom E3815) and Intel SM35 (Atom Z670).

Feature	Atom E3815	Atom Z670
Socket	FCBGA1170	T-PBGA518
PCIe Generation	PCIe 2.0	PCIe 2.0
Max RAM Speed	DDR3L-1066+50%	DDR2-800
Max RAM Capacity	8 GB+300%	2 GB
RAM Channels	1	1
ECC Support	✅	❌
PCIe Lanes	4	0

🔧

Advanced Features

Both include integrated graphics — Intel HD Graphics (Bay Trail) (Atom E3815) and Intel GMA 600 (Atom Z670) — useful as a fallback for troubleshooting or display output without a dedicated GPU.