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 Celeron B840 is manufactured by Intel. It was released in 1 July 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 1.9 GHz, with boost up to 1.9 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: 1,065 points. Launch price was $86.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. The Celeron B840 is positioned at rank #1028 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. 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 Celeron B840

#1016

Atom x5-Z8300

MSRP: $20|Avg: N/A

2370%

#1017

Atom Z3735G

MSRP: $17|Avg: N/A

2335%

#1018

Core i5-480M

MSRP: $81|Avg: $77

2144%

#1019

Core i5-460M

MSRP: $80|Avg: $129

2134%

#1020

Core i5-2540M

MSRP: $266|Avg: $10

2115%

#1022

Core i5-450M

MSRP: $32|Avg: $31

2042%

#1023

Core i3-380M

MSRP: $49|Avg: $25

1958%

#1024

Core i5-430M

MSRP: N/A|Avg: $33

1955%

#1025

Core 2 Duo T6600

MSRP: N/A|Avg: $4

1902%

#1028

Celeron B840

MSRP: $86|Avg: $15

100%

#1029

Celeron M 743

MSRP: $107|Avg: $15

100%

#1030

Core i7-3612QM

MSRP: $378|Avg: N/A

100%

#1031

Pentium 967

MSRP: $134|Avg: $10

99%

#1032

Core i5-4400E

MSRP: $266|Avg: $50

99%

#1034

Pentium Dual Core T4400

MSRP: $107|Avg: $5

97%

#1037

Core i7-8665UE

MSRP: $409|Avg: $409

96%

#1038

Celeron T3300

MSRP: $86|Avg: $15

94%

#1039

Celeron Dual-Core T3300

MSRP: $86|Avg: $30

94%

#1042

Core i7-3612QE

MSRP: $426|Avg: $50

93%

#1043

A10-7300

MSRP: $150|Avg: $50

93%

Based on actual market prices and performance synthetic scores.

FPS Benchmarks

Predicted performance for Celeron B840 across popular games. Tested paired with RTX 4090 to isolate CPU performance.

Technical Analysis

Detailed breakdown of Celeron B840 specifications and capabilities.

⚡

Processing Power

The Celeron B840 is a 2-core / 2-thread processor based on the Sandy Bridge (2011−2013) architecture, manufactured on a 32 nm process node. It reaches a maximum boost clock of 1.9 GHz from a base frequency of 1.9 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. It carries 2 MB (total) of L3 cache, plus 256K (per core) of L2 cache and 64K (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 1,065, placing it in the Entry Level performance tier as a Legacy generation product. Geekbench 6 single-core (the most relevant metric for gaming FPS) records 450, while multi-core reaches 790.

Specification	Celeron B840
Cores / ThreadsPhysical/logical processing units	2C / 2T
Max Boost ClockPeak single-core speed under boost	1.9 GHz
Base ClockGuaranteed minimum operating frequency	1.9 GHz
ArchitectureCPU microarchitecture design	Sandy Bridge (2011−2013)
Process NodeFabrication technology — smaller = more efficient	32 nm
L3 CacheShared cache — reduces memory latency for all cores	2 MB (total)
L2 CachePer-core fast cache for frequently accessed data	256K (per core)
L1 CacheUltra-fast per-core cache	64K (per core)
Die SizePhysical silicon area of the processor	131 mm2
Transistor CountMore transistors = more capabilities	504 million
Bus SpeedData bus frequency	4 × 5 GT/s
Max TemperatureMaximum safe operating temperature (Tjmax)	100 °C
64-bit Support	Yes
Windows 11 Compatible	No
PassMark ScoreOverall multi-threaded benchmark score	1,065
Geekbench 6 SingleSingle-core performance — most relevant for gaming	450
Geekbench 6 MultiMulti-core parallel workload performance	790

🧠

Memory & Platform

The Celeron B840 fits into the PGA988 socket and supports PCIe 2.0 with 16 total PCIe lanes for expansion cards and storage. It supports DDR3 memory at speeds up to 1333 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 16 across 2 channels (dual-channel doubles bandwidth). Integrated graphics: Intel HD Graphics (Sandy Bridge) — allows display output without a dedicated GPU, useful for troubleshooting and light tasks.

Specification	Celeron B840
TypeDesktop or Laptop processor	Laptop
SeriesProduct family	Intel Celeron
SocketMotherboard socket required	PGA988
PCIe GenerationPeripheral interconnect speed — affects GPU and SSD bandwidth	PCIe 2.0
PCIe LanesTotal available lanes for GPUs, NVMe drives, and expansion	16
RAM TypeSupported memory standard	DDR3
Max RAM SpeedMaximum officially supported memory frequency	1333
Max RAM CapacityMaximum installable memory	16
RAM ChannelsDual-channel doubles bandwidth vs single-channel	2
ECC SupportError-Correcting Code memory — prevents data corruption	No
Integrated GPUBuilt-in graphics processor	Intel HD Graphics (Sandy Bridge)
Compatible ChipsetsMotherboard chipsets that support this CPU	HM65,HM67,QM67
Max CPUs in ConfigMulti-socket support for servers	1 (Uniprocessor)

🔧

Advanced Features

The Celeron B840 is primarily designed for Budget. Virtualization: true — enables running virtual machines efficiently (important for development and server workloads). Its primary market competitor is the Pentium B940.

Specification	Celeron B840
Primary Use CaseIntended workload category	Budget
OverclockingWhether CPU clock can be manually increased	🔒 Locked
AVX-512Advanced vector instructions for AI/ML workloads	❌ Not Supported
VirtualizationHardware-assisted virtualization technology	true
Direct CompetitorMarket equivalent from rival manufacturer	Pentium B940

🌡️

Power & Cooling

The Celeron B840 has a rated TDP (Thermal Design Power) of 35 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. It ships with the false stock cooler. Recommended cooling: Stock.

Specification	Celeron B840
TDPThermal Design Power — heat output under sustained workload	35 Watt
Max TemperatureMaximum safe junction temperature (Tjmax)	100 °C
Included CoolerStock cooler bundled in the box	false
Recommended CoolerSuggested aftermarket cooling solution	Stock

💰

Value Analysis

At an average price of $15 (MSRP: $86), the Celeron B840 delivers 71 PassMark points per dollar. It currently holds Rank #1028 in the overall cost-benefit ranking — this ranking factors in performance-per-dollar relative to all available processors. Performance ranking position: #3080 out of all indexed processors.

Specification	Celeron B840
MSRPManufacturer's Suggested Retail Price	$86
Avg Price (30d)Average market price over the last 30 days	$15
Launch PriceOriginal retail price at launch	$86
Cost-Benefit RankPosition in overall value ranking	#1028
Performance RankPosition in overall performance ranking	#3080
Release DateLaunch date	1 July 2011 (14 years ago)
Release Year	2011
DesignerArchitecture designer (e.g. Intel, AMD)	Intel
ManufacturerFabrication foundry (e.g. TSMC)	Intel