84points

Intel Core i7-3940XM

56points

Intel Core i7-7740X

Comparison winner
Intel Core i7-3940XM
Intel Core i7-7740X
vs
vs

33 facts in comparison

Intel Core i7-3940XM vs Intel Core i7-7740X

Intel Core i7-3940XM
Intel Core i7-7740X
Intel Core i7-3940XM
Intel Core i7-7740X
84
points
56
points

Why is Intel Core i7-3940XM better than Intel Core i7-7740X?

  • 57W lower TDP
    55Wvs112W
  • Has integrated graphics
  • Has Tri-Gate transistors
  • Has Intel Quick Sync Video
  • Has RdRand
  • 21mm narrower
    37.5mmvs58.5mm
  • 13.5mm shorter
    37.5mmvs51mm

Why is Intel Core i7-7740X better than Intel Core i7-3940XM?

  • 43.33% faster CPU speed
    4 x 4.3GHzvs4 x 3GHz
  • 1066MHz higher ram speed
    2666MHzvs1600MHz
  • 8nm smaller semiconductor size
    14nmvs22nm
  • 3MB bigger L2 cache
    4MBvs1MB
  • 0.75MB/core more L2 cache per core
    1MB/corevs0.25MB/core
  • 0.6GHz higher turbo clock speed
    4.5GHzvs3.9GHz
  • 32GB larger maximum memory size
    64GBvs32GB
  • 3GT/s faster bus transfer rate
    8GT/svs5GT/s

Top specs and features

General info

1.Supports 64-bit
Intel Core i7-3940XM
Intel Core i7-7740X

A 32-bit operating system can only support up to 4GB of RAM. 64-bit allows more than 4GB, giving increased performance. It also allows you to run 64-bit applications.

2.semiconductor size

22nm

14nm

A smaller size indicates that the process to create the chip is newer.

Best

AMD Ryzen 5 2500X

12nm

3.thermal design power (TDP)

55W

112W

The thermal design power (TDP) is the maximum amount of power the cooling system needs to dissipate. A lower TDP typically means that it consumes less power.

Best

Intel Atom E3805

3W

4.PCI Express (PCIe) version

3

3

PCI Express (PCIe) is a high speed expansion card standard, that connects the computer to it's peripherals. Newer versions can support more bandwidth and deliver better performance.

Best

Intel Core i9-7920X

44

5.Has integrated graphics
Intel Core i7-3940XM
Intel Core i7-7740X

With integrated graphics you don’t need to buy a separate graphics card.

6.Has RdRand
Intel Core i7-3940XM
Intel Core i7-7740X

RdRand is an instruction set used for cryptography.

Performance

1.CPU speed

4 x 3GHz

4 x 4.3GHz

Best

AMD Ryzen Threadripper 2990WX

32 x 3GHz

2.L2 cache

1MB

4MB

A larger L2 cache results in faster CPU and system-wide performance.

Best

Intel Xeon Phi 7235

32MB

3.L1 cache

256KB

128KB

A larger L1 cache results in faster CPU and system-wide performance.

Best

AMD Ryzen Threadripper 2970WX

2250KB

4.L2 core

0.25MB/core

1MB/core

More data can be stored in the L2 cache for access by each core of the CPU.

Best

Intel Core i5-4200Y

2.5MB/core

5.CPU threads

8

8

More threads result in faster performance and better multitasking.

Best

AMD Ryzen Threadripper 2990WX

64

6.L3 cache

8MB

8MB

A larger L3 cache results in faster CPU and system-wide performance.

Best

AMD Ryzen Threadripper 2990WX

64MB

Memory

1.RAM speed

1600MHz

2666MHz

It can support faster memory, which will give quicker system performance.

Best

AMD Ryzen 5 2500X

2933MHz

2.memory channels

2

2

More memory channels increases the speed of data transfer between the memory and the CPU.

Best

Intel Atom x5-Z8350

12.8

3.bus transfer rate

5GT/s

8GT/s

The bus is responsible for transferring data between different components of a computer or device.

Best

Intel Xeon Gold 5115

10.4GT/s

4.maximum memory size

32GB

64GB

The maximum amount of memory (RAM) supported.

Best

Intel Xeon E7-8830

4096GB

Features

1.Uses hyperthreading technology
Intel Core i7-3940XM
Intel Core i7-7740X

Many of Intel's processors use hyperthreading, which means that each core of the processor can work on two threads at once instead of most processors which work on a single thread per core. This means you can have significant performance gains in certain applications.

2.Has dynamic frequency scaling
Intel Core i7-3940XM
Intel Core i7-7740X

Dynamic frequency scaling is a technology that allows the processor to conserve power and reduce noise when it is under a light load.

3.Has AES
Intel Core i7-3940XM
Intel Core i7-7740X

AES is used to speed up encryption and decryption.

4.Supports hardware-assisted virtualization
Intel Core i7-3940XM
Intel Core i7-7740X

It is easier to obtain better performance when using virtualization if it is hardware-assisted.

5.SSE version

4.2

4.2

SSE is used to speed up multimedia tasks such as editing an image or adjusting audio volume. Each new version contains new instructions and improvements.

Best

Intel Core i3-9350KF

4.2

6.Has Tri-Gate transistors
Intel Core i7-3940XM
Intel Core i7-7740X

An advanced transistor technology developed by Intel that allows lower power consumption and higher speeds.

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