Intel Celeron B840: specs and benchmarks

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Summary

Intel started Celeron B840 sales 1 July 2011 at a recommended price of $86. This is a Sandy Bridge architecture notebook processor primarily aimed at office systems. It has 2 cores and 2 threads, and is based on 32 nm manufacturing technology, with a maximum frequency of 1900 MHz and a locked multiplier.

Compatibility-wise, this is FCPGA988,PGA988 processor with a TDP of 35 Watt. It supports DDR3 memory.

It provides poor benchmark performance at 0.66% of a leader's which is AMD Ryzen Threadripper PRO 7995WX.

Ryzen Threadripper PRO 7995WXRyzen ThreadripperPRO 7995WX
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General info

Celeron B840 processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance ranking2594
Place by popularitynot in top-100
Market segmentLaptop
SeriesIntel Celeron
Architecture codenameSandy Bridge (2011−2013)
Release date1 July 2011 (12 years old)
Launch price (MSRP)$86of 305 (Core i7-870)
Current price$133 (1.5x MSRP)of 17802 (Threadripper PRO 7995WX)

Technical specs

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores2 (Dual-core)
Threads2
Base clock speed1.9 GHzof 4.7 (FX-9590)
Boost clock speed1.9 GHzof 6.2 (Core i9-14900KS)
L1 cache64K (per core)of 7475.2 (Apple M2 Pro 10-Core)
L2 cache256K (per core)of 36864 (Apple M2 Max)
L3 cache2 MB (shared)of 768 (EPYC 7373X)
Chip lithography32 nmof 3 (Apple M3 Max 16-Core)
Die size131 mm2
Maximum core temperature100 °Cof 110 (Atom x7-E3950)
Number of transistors504 millionof 9900000 (Ryzen 5 7645HX)
64 bit support+
Windows 11 compatibility-
Unlocked multiplierNo

Compatibility

Information on Celeron B840 compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1of 8 (Opteron 842)
SocketFCPGA988,PGA988
Power consumption (TDP)35 Wattof 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Celeron B840. You'll probably need this information if you require some particular technology.

AES-NI-
FMA+
Enhanced SpeedStep (EIST)+
My WiFi+
Turbo Boost Technology-
Hyper-Threading Technology-
Idle States+
Thermal Monitoring+
Flex Memory Access+
Demand Based Switching-
FDI+
Fast Memory Access+
StatusDiscontinued

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT-
EDB+
Anti-Theft-

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d-
VT-x+

Memory specs

Types, maximum amount and channel number of RAM supported by Celeron B840's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR3of 5600 (Ryzen 9 7940HS)
Maximum memory size16 GBof 786 (Xeon E5-2670 v3)
Max memory channels2of 12 (Xeon Platinum 9221)
Maximum memory bandwidth21.3 GB/sof 460.8 (EPYC 9124)
ECC memory support-

Graphics specifications

General parameters of a GPU integrated into Celeron B840.

Integrated graphics cardIntel® HD Graphics for 2nd Generation Intel® Processors
Quick Sync Video-
Clear Video HD-
Graphics max frequency1 GHz
InTru 3D-

Graphics interfaces

Available interfaces and connections of Celeron B840's integrated GPU.

Number of displays supported2
eDP+
DisplayPort+
HDMI+
SDVO+
CRT+

Peripherals

Specifications and connection types of supported peripherals.

PCIe version2.0of 5 (Core i9-12900K)
PCI Express lanes16of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Celeron B840. Overall benchmark performance is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Celeron B840 0.66

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Benchmark coverage: 68%

Celeron B840 1015

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 42%

Celeron B840 328

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 42%

Celeron B840 597

Gaming performance

Relative perfomance

Overall Celeron B840 performance compared to nearest competitors among notebook CPUs.


AMD equivalent

According to our data, the closest AMD alternative to Celeron B840 is A6-4400M, which is nearly equal in speed and lower by 6 positions in our ranking.

A6-4400MA64400M
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Here are some closest AMD rivals to Celeron B840:

Intel Celeron B840 100
AMD A4-4300M 98.48
AMD A6-9220e 96.97

Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

Recommended GPUs

People consider these graphics cards to be good for Celeron B840, according to our PC configuration statistics.

These are the fastest graphics cards for Celeron B840 in our user configuration statistics. There is a total of 42 configurations based on Celeron B840 in our database.

User ratings: view and submit

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.


1.8 13 votes

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Questions and comments

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