i3-6100U vs i7-2840QM

VS

Aggregate performance score

Core i7-2840QM
2011
4 cores / 8 threads, 45 Watt
2.42
+45.8%
Core i3-6100U
2015
2 cores / 4 threads, 15 Watt
1.66

Core i7-2840QM outperforms Core i3-6100U by a considerable 46% based on our aggregate benchmark results.

Primary details

Comparing Core i7-2840QM and Core i3-6100U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking17802080
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7Intel Core i3
Power efficiency5.0910.47
Architecture codenameSandy Bridge (2011−2013)Skylake (2015−2016)
Release date4 September 2011 (13 years ago)1 September 2015 (9 years ago)
Launch price (MSRP)no data$281

Detailed specifications

Core i7-2840QM and Core i3-6100U 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 cores4 (Quad-Core)2 (Dual-core)
Threads84
Base clock speedno data2.3 GHz
Boost clock speed2.4 GHz2.3 GHz
Bus typeDMI 2.0OPI
Bus rate4 × 5 GT/s4 GT/s
Multiplier2423
L1 cache256 KB128 KB
L2 cache1 MB512 KB
L3 cache8 MB3 MB
Chip lithography32 nm14 nm
Die size216 mm298.57 mm2
Maximum core temperatureno data100 °C
Number of transistors1160 Million1750 Million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Core i7-2840QM and Core i3-6100U 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 (Uniprocessor)
SocketSocket G2FCBGA1356
Power consumption (TDP)45 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-2840QM and Core i3-6100U. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
FMA+-
AVX++
vPro+no data
Enhanced SpeedStep (EIST)++
My WiFino data+
Turbo Boost Technologyno data-
Hyper-Threading Technologyno data+
Idle Statesno data+
Thermal Monitoring-+
Flex Memory Accessno data+
Smart Responseno data+

Security technologies

Core i7-2840QM and Core i3-6100U technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDBno data+
Secure Keyno data+
MPX-+
Identity Protection-+
SGXno dataYes with Intel® ME
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-2840QM and Core i3-6100U are enumerated here.

AMD-V-+
VT-d++
VT-x++
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-2840QM and Core i3-6100U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR3, DDR4
Maximum memory size32 GB32 GB
Max memory channelsno data2
Maximum memory bandwidth25.598 GB/s34.134 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel HD Graphics 3000Intel HD Graphics 520
Max video memoryno data32 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data1 GHz
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Core i7-2840QM and Core i3-6100U integrated GPUs.

Number of displays supportedno data3
eDPno data+
DisplayPort-+
HDMI-+
DVIno data+

Graphics image quality

Maximum display resolutions supported by Core i7-2840QM and Core i3-6100U integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2304@24Hz
Max resolution over eDPno data4096x2304@60Hz
Max resolution over DisplayPortno data4096x2304@60Hz

Graphics API support

APIs supported by Core i7-2840QM and Core i3-6100U integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Core i7-2840QM and Core i3-6100U.

PCIe versionno data3.0
PCI Express lanesno data12

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.

i7-2840QM 2.42
+45.8%
i3-6100U 1.66

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.

i7-2840QM 3842
+45.8%
i3-6100U 2635

Gaming performance

Pros & cons summary


Performance score 2.42 1.66
Integrated graphics card 0.66 2.16
Recency 4 September 2011 1 September 2015
Physical cores 4 2
Threads 8 4
Chip lithography 32 nm 14 nm
Power consumption (TDP) 45 Watt 15 Watt

i7-2840QM has a 45.8% higher aggregate performance score, and 100% more physical cores and 100% more threads.

i3-6100U, on the other hand, has 227.3% faster integrated GPU, an age advantage of 3 years, a 128.6% more advanced lithography process, and 200% lower power consumption.

The Core i7-2840QM is our recommended choice as it beats the Core i3-6100U in performance tests.


Should you still have questions on choice between Core i7-2840QM and Core i3-6100U, ask them in Comments section, and we shall answer.

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Intel Core i7-2840QM
Core i7-2840QM
Intel Core i3-6100U
Core i3-6100U

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Community ratings

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