i7-1250U vs i7-3940XM

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Aggregate performance score

Core i7-3940XM
2012
4 cores / 8 threads, 55 Watt
3.68
Core i7-1250U
2022
10 cores / 12 threads, 9 Watt
7.30
+98.4%

Core i7-1250U outperforms Core i7-3940XM by an impressive 98% based on our aggregate benchmark results.

Primary details

Comparing Core i7-3940XM and Core i7-1250U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1496990
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesIntel Core i7Intel Alder Lake-M
Power efficiency6.3376.76
Architecture codenameIvy Bridge (2012−2013)Alder Lake-U (2022)
Release date3 September 2012 (12 years ago)23 February 2022 (2 years ago)
Launch price (MSRP)$1,096no data

Detailed specifications

Core i7-3940XM and Core i7-1250U 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)10 (Deca-Core)
Threads812
Base clock speed3 GHz1.1 GHz
Boost clock speed3.9 GHz4.7 GHz
Bus rate5 GT/sno data
L1 cache64K (per core)80K (per core)
L2 cache256K (per core)1.25 MB (per core)
L3 cache8 MB (shared)12 MB (shared)
Chip lithography22 nmIntel 7 nm
Die size160 mm2no data
Maximum core temperature105 °C100 °C
Number of transistors1,400 millionno data
64 bit support++
Windows 11 compatibility-+
Unlocked multiplier+-

Compatibility

Information on Core i7-3940XM and Core i7-1250U 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
SocketFCPGA988FCBGA1781
Power consumption (TDP)55 Watt9 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3940XM and Core i7-1250U. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVXIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
FMA-+
AVX++
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
My WiFi+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology++
TSX-+
Idle States+no data
Thermal Monitoring++
Flex Memory Access+-
Demand Based Switching-no data
FDI+no data
Fast Memory Access+no data
Deep Learning Boost-+

Security technologies

Core i7-3940XM and Core i7-1250U technologies aimed at improving security, for example, by protecting against hacks.

TXT++
EDB++
Secure Keyno data+
Identity Protection+-
OS Guardno data+
Anti-Theft+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3940XM and Core i7-1250U are enumerated here.

AMD-V+-
VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i7-3940XM and Core i7-1250U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR4, DDR5
Maximum memory size32 GB64 GB
Max memory channels22
Maximum memory bandwidth25.6 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel HD Graphics 4000Intel® Iris® Xe Graphics eligible
Quick Sync Video++
Clear Video HD+no data
Graphics max frequency1.35 GHz950 MHz
Execution Unitsno data96
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i7-3940XM and Core i7-1250U integrated GPUs.

Number of displays supported34
eDP+no data
DisplayPort+-
HDMI+-
SDVO+no data
CRT+no data

Graphics image quality

Maximum display resolutions supported by Core i7-3940XM and Core i7-1250U integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data4096 x 2304 @ 60Hz
Max resolution over eDPno data4096 x 2304 @ 120Hz
Max resolution over DisplayPortno data7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core i7-3940XM and Core i7-1250U integrated GPUs, sometimes API versions are included.

DirectXno data12.1
OpenGLno data4.6

Peripherals

Specifications and connection of peripherals supported by Core i7-3940XM and Core i7-1250U.

PCIe version3.04.0
PCI Express lanes1614

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.

i7-3940XM 3.68
i7-1250U 7.30
+98.4%

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.

i7-3940XM 5840
i7-1250U 11601
+98.6%

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.

i7-3940XM 644
i7-1250U 1658
+157%

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.

i7-3940XM 2023
i7-1250U 5821
+188%

Gaming performance

Pros & cons summary


Performance score 3.68 7.30
Recency 3 September 2012 23 February 2022
Physical cores 4 10
Threads 8 12
Power consumption (TDP) 55 Watt 9 Watt

i7-1250U has a 98.4% higher aggregate performance score, an age advantage of 9 years, 150% more physical cores and 50% more threads, and 511.1% lower power consumption.

The Core i7-1250U is our recommended choice as it beats the Core i7-3940XM in performance tests.


Should you still have questions on choice between Core i7-3940XM and Core i7-1250U, ask them in Comments section, and we shall answer.

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Intel Core i7-3940XM
Core i7-3940XM
Intel Core i7-1250U
Core i7-1250U

Similar processor comparisons

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Community ratings

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


4.6 164 votes

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Questions & comments

Here you can ask a question about Core i7-3940XM or Core i7-1250U, agree or disagree with our judgements, or report an error or mismatch.