Celeron 1000M vs B840

VS

Aggregate performance score

Celeron B840
2011
2 cores / 2 threads, 35 Watt
0.63
Celeron 1000M
2013
2 cores / 2 threads, 35 Watt
0.70
+11.1%

Celeron 1000M outperforms Celeron B840 by a moderate 11% based on our aggregate benchmark results.

Primary details

Comparing Celeron B840 and Celeron 1000M processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking27812725
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel CeleronIntel Celeron
Power efficiency1.641.82
Architecture codenameSandy Bridge (2011−2013)Ivy Bridge (2012−2013)
Release date1 July 2011 (13 years ago)20 January 2013 (11 years ago)
Launch price (MSRP)$86$86

Detailed specifications

Celeron B840 and Celeron 1000M basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores2 (Dual-core)2 (Dual-core)
Threads22
Base clock speed1.9 GHz1.8 GHz
Boost clock speed1.9 GHz1.8 GHz
Bus typeDMI 2.0no data
Bus rate4 × 5 GT/s5 GT/s
Multiplier19no data
L1 cache128 KB64K (per core)
L2 cache512 KB256K (per core)
L3 cache2 MB (shared)2 MB (shared)
Chip lithography32 nm22 nm
Die size131 mm2118 mm2
Maximum core temperature100 °C105 °C
Maximum case temperature (TCase)no data105 °C
Number of transistors504 million1,400 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Celeron B840 and Celeron 1000M compatibility with other computer components: 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 configuration1 (Uniprocessor)1
SocketFCPGA988,PGA988FCPGA988
Power consumption (TDP)35 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Celeron B840 and Celeron 1000M. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2
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++

Security technologies

Celeron B840 and Celeron 1000M technologies aimed at improving security, for example, by protecting against hacks.

TXT--
EDB++
Anti-Theft--

Virtualization technologies

Virtual machine speed-up technologies supported by Celeron B840 and Celeron 1000M are enumerated here.

VT-d--
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Celeron B840 and Celeron 1000M. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size16 GB32 GB
Max memory channels22
Maximum memory bandwidth21.335 GB/s25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel® HD Graphics for 2nd Generation Intel® ProcessorsIntel® HD Graphics for 3rd Generation Intel® Processors
Clear Video HD--
Graphics max frequency1 GHz1 GHz
InTru 3D--

Graphics interfaces

Available interfaces and connections of Celeron B840 and Celeron 1000M integrated GPUs.

Number of displays supported23
eDP++
DisplayPort++
HDMI++
SDVO++
CRT++

Peripherals

Specifications and connection of peripherals supported by Celeron B840 and Celeron 1000M.

PCIe version2.02.0
PCI Express lanes1616

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score 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 0.63
Celeron 1000M 0.70
+11.1%

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.

Celeron B840 967
Celeron 1000M 1069
+10.5%

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.

Celeron B840 328
+10.4%
Celeron 1000M 297

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.

Celeron B840 597
+17.5%
Celeron 1000M 508

Gaming performance

Pros & cons summary


Performance score 0.63 0.70
Recency 1 July 2011 20 January 2013
Chip lithography 32 nm 22 nm

Celeron 1000M has a 11.1% higher aggregate performance score, an age advantage of 1 year, and a 45.5% more advanced lithography process.

The Celeron 1000M is our recommended choice as it beats the Celeron B840 in performance tests.


Should you still have questions on choice between Celeron B840 and Celeron 1000M, ask them in Comments section, and we shall answer.

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Intel Celeron B840
Celeron B840
Intel Celeron 1000M
Celeron 1000M

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Community ratings

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Questions & comments

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