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.

Overview

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.

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.

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

Performance Per Dollar

Based on actual market prices and performance synthetic scores.

FPS Benchmarks

Predicted performance for Atom E3815 across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Technical Analysis

Detailed breakdown of Atom E3815 specifications and capabilities.

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Processing Power

The Atom E3815 is a 1-core / 1-thread processor based on the Bay Trail-I (2013) architecture, manufactured on a 22 nm process node. It reaches a maximum boost clock of 1.47 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 0 kB of L3 cache, plus 512 kB (per core) of L2 cache and 64 kB (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 365, placing it in the Entry Level performance tier as a Legacy generation product.

Specification	Atom E3815
Cores / ThreadsPhysical/logical processing units	1C / 1T
Max Boost ClockPeak single-core speed under boost	1.47 GHz
ArchitectureCPU microarchitecture design	Bay Trail-I (2013)
Process NodeFabrication technology — smaller = more efficient	22 nm
L3 CacheShared cache — reduces memory latency for all cores	0 kB
L2 CachePer-core fast cache for frequently accessed data	512 kB (per core)
L1 CacheUltra-fast per-core cache	64 kB (per core)
64-bit Support	Yes
Windows 11 Compatible	No
PassMark ScoreOverall multi-threaded benchmark score	365

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Memory & Platform

The Atom E3815 fits into the FCBGA1170 socket and supports PCIe 2.0 with 4 total PCIe lanes for expansion cards and storage. It supports DDR3 memory at speeds up to DDR3L-1066 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 8 GB across 1 channels (dual-channel doubles bandwidth). It supports ECC memory, providing error-correcting capabilities — essential for mission-critical workloads and servers. Integrated graphics: Intel HD Graphics (Bay Trail) — allows display output without a dedicated GPU, useful for troubleshooting and light tasks.

Specification	Atom E3815
TypeDesktop or Laptop processor	Laptop
SeriesProduct family	Atom
SocketMotherboard socket required	FCBGA1170
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth	PCIe 2.0
PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion	4
RAM TypeSupported memory standard	DDR3
Max RAM SpeedMaximum officially supported memory frequency	DDR3L-1066
Max RAM CapacityMaximum installable memory	8 GB
RAM ChannelsDual-channel doubles bandwidth vs single-channel	1
ECC SupportError-Correcting Code memory — prevents data corruption	Yes
Integrated GPUBuilt-in graphics processor	Intel HD Graphics (Bay Trail)
Compatible ChipsetsMotherboard chipsets that support this CPU	Intel FCBGA1170
Max CPUs in ConfigMulti-socket support for servers	1

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Power & Cooling

The Atom E3815 has a rated TDP (Thermal Design Power) of 512 kB — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed.

Specification	Atom E3815
TDPThermal Design Power — heat output under sustained workload	512 kB

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Value Analysis

Performance ranking position: #3642 out of all indexed processors.

Specification	Atom E3815
Launch PriceOriginal retail price at launch	$134
Performance RankPosition in overall performance ranking	#3642
Release DateLaunch date	8 October 2013 (12 years ago)
Release Year	2013
DesignerArchitecture designer (e.g. Intel, AMD)	Intel
ManufacturerFabrication foundry (e.g. TSMC)	Intel

Specifications Reference

Raw spec sheet for quick lookup. The analysis cards above explain what these fields mean in practice.

4 categories

General Information

8 specs

Type	Laptop
Series	Atom
Designer	Intel
Launch Price	$134
Manufacturer	Intel
Release Date	8 October 2013 (12 years ago)
Architecture Codename	Bay Trail-I (2013)
Performance Ranking Position	3642

Technical Specifications

9 specs

Cores	1
Threads	1
L1 Cache	64 kB (per core)
L2 Cache	512 kB (per core)
L3 Cache	0 kB
Max Frequency	1.47 GHz
64-Bit Support	+
Process Technology	22 nm
Windows 11 Compatible	-