i7-840QM vs i3-2100

VS

Aggregate performance score

Core i3-2100
2011
2 cores / 4 threads, 65 Watt
1.17
Core i7-840QM
2010
4 cores / 8 threads, 45 Watt
1.23
+5.1%

Core i7-840QM outperforms Core i3-2100 by a small 5% based on our aggregate benchmark results.

Primary details

Comparing Core i3-2100 and Core i7-840QM processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking23752325
Place by popularity99not in top-100
Cost-effectiveness evaluation0.28no data
Market segmentDesktop processorLaptop
Seriesno dataIntel Core i7
Power efficiency1.702.59
Architecture codenameSandy Bridge (2011−2013)Clarksfield (2009−2010)
Release date20 February 2011 (13 years ago)22 June 2010 (14 years ago)
Launch price (MSRP)$73$568

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i3-2100 and Core i7-840QM 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)4 (Quad-Core)
Threads48
Base clock speed3.1 GHz1.86 GHz
Boost clock speed3.1 GHz3.2 GHz
Bus typeno dataDMI 1.0
Bus rate5 GT/s2.5 GT/s
Multiplierno data14
L1 cache64 KB (per core)256 KB
L2 cache256 KB (per core)1 MB
L3 cache3 MB (shared)8 MB (shared)
Chip lithography32 nm45 nm
Die size131 mm2296 mm2
Maximum core temperature69 °C100 °C
Number of transistors504 million774 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Core i3-2100 and Core i7-840QM 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 configuration11 (Uniprocessor)
SocketFCLGA1155FCPGA988,PGA988
Power consumption (TDP)65 Watt45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i3-2100 and Core i7-840QM. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVXIntel® SSE4.2
vProno data+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology-+
Hyper-Threading Technology++
Idle States++
Thermal Monitoring++
Flex Memory Access+no data
PAEno data36 Bit
FDI+no data
Fast Memory Access+no data

Security technologies

Core i3-2100 and Core i7-840QM technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Identity Protection+-

Virtualization technologies

Virtual machine speed-up technologies supported by Core i3-2100 and Core i7-840QM are enumerated here.

VT-d-+
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i3-2100 and Core i7-840QM. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size32 GB8 GB
Max memory channels22
Maximum memory bandwidth21 GB/s21.335 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics 2000None
Quick Sync Video+-
Clear Video HD+no data
Graphics max frequency1.1 GHzno data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i3-2100 and Core i7-840QM integrated GPUs.

Number of displays supported2no data

Peripherals

Specifications and connection of peripherals supported by Core i3-2100 and Core i7-840QM.

PCIe version2.02
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.

i3-2100 1.17
i7-840QM 1.23
+5.1%

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.

i3-2100 1857
i7-840QM 1952
+5.1%

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.

i3-2100 464
+20.2%
i7-840QM 386

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.

i3-2100 946
i7-840QM 1044
+10.4%

Gaming performance

Pros & cons summary


Performance score 1.17 1.23
Recency 20 February 2011 22 June 2010
Physical cores 2 4
Threads 4 8
Chip lithography 32 nm 45 nm
Power consumption (TDP) 65 Watt 45 Watt

i3-2100 has an age advantage of 7 months, and a 40.6% more advanced lithography process.

i7-840QM, on the other hand, has a 5.1% higher aggregate performance score, 100% more physical cores and 100% more threads, and 44.4% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Core i3-2100 and Core i7-840QM.

Note that Core i3-2100 is a desktop processor while Core i7-840QM is a notebook one.


Should you still have questions on choice between Core i3-2100 and Core i7-840QM, ask them in Comments section, and we shall answer.

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Intel Core i3-2100
Core i3-2100
Intel Core i7-840QM
Core i7-840QM

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.3 2045 votes

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Questions & comments

Here you can ask a question about Core i3-2100 or Core i7-840QM, agree or disagree with our judgements, or report an error or mismatch.