Intel Core i5-3439Y VS Intel Core i7-3940XM

Comparison of video cards Intel Core i5-3439Y vs Intel Core i7-3940XM in benchmarks and specifications.

Differences Specifications Benchmarks

Differences

Top features of Intel Core i5-3439Y

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Performance per watt

13 W 55 W

About 4.23 0.97 times less performance per watt

Top features of Intel Core i7-3940XM

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Higher clock speed

3.00 GHz 1.50 GHz

Around 50% better clock speed
More number of cores

4 2

2 times more cores
Higher turbo clock speed

3.90 GHz 2.30 GHz

Around 41 % better overclocked clock speed

Specifications

Complete list of technical specifications

Intel Core i5-3439Y Intel Core i7-3940XM

CPU generation and family

Let's find out which one of Intel Core i5-3439Y and Intel Core i7-3940XM is of a more recent generation, and what segment it belongs to.

Specification	Value
Name	Intel Core i5-3439Y Intel Core i7-3940XM
Segment	Mobile Mobile
Family	Intel Core i5 Intel Core i7 Extreme Edition
Generation	3 3
CPU group	Intel Core i 3000Y Intel Core i 3000M

CPU Cores and Base Frequency

In this block we are going to compare Intel Core i5-3439Y vs Intel Core i7-3940XM by main technical specifications: number of cores and threads, base and maximum frequencies, process technology and cache size. The higher these specifications are, the more powerful your CPU will be.

Specification	Value
Frequency	1.50 GHz 3.00 GHz
CPU Cores	2 4
Turbo (1 Core)	2.30 GHz 3.90 GHz
CPU Threads	4 8
Hyperthreading	Yes Yes
Overclocking	No Yes
Core architecture	normal normal

Internal Graphics

Common specifications for integrated graphics cards in Intel Core i5-3439Y and Intel Core i7-3940XM along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

Specification	Value
GPU name	Intel HD Graphics 4000 Intel HD Graphics 4000
GPU frequency	0.35 GHz 0.65 GHz
GPU (Turbo)	0.85 GHz 1.35 GHz
Execution units	16 16
Shader	128 128
Max. displays	3 3
Generation	7 7
DirectX Version	11.0 11.0
Technology	22 nm 22 nm
Release date	Q1/2011 Q1/2011

Hardware codec support

Let's compare the support of video codecs between Intel Core i5-3439Y and Intel Core i7-3940XM. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

Specification	Value
h265 / HEVC (8 bit)	No No
h265 / HEVC (10 bit)	No No
h264	Decode / Encode Decode / Encode
VP9	No No
VP8	No No
AV1	No No
AVC	Decode / Encode Decode / Encode
VC-1	Decode Decode
JPEG	Decode Decode

Memory & PCIe

To choose the best model between Intel Core i5-3439Y and Intel Core i7-3940XM you need to pay special attention to memory type, clock frequency, multi-channel features, and PCIe version. The higher these numbers are, the better your CPU will be. Keep in mind that the maximum memory and frequency may also depend on the model of the motherboard.

Specification	Value
Memory type	DDR3-1333DDR3-1600DDR3L-1333 SO-DIMMDDR3L-1600 SO-DIMM DDR3-1333DDR3-1600DDR3L-1333 SO-DIMMDDR3L-1600 SO-DIMM
Max. Memory	32 GB 32 GB
ECC	No No
Memory channels	2 2
PCIe version	3.0
PCIe lanes	16

Encryption

AES-NI encryption support for CPUs Intel Core i5-3439Y and Intel Core i7-3940XM.

Specification	Value
AES-NI	Yes Yes

Thermal Management

Let's find out what TDP value would be better for Intel Core i5-3439Y or Intel Core i7-3940XM? The Thermal Design Power (TDP) indicates the maximum amount of heat that should be dissipated by the chip cooling system. However, the value of TDP gives only a rough indication of the real power consumption of the CPU.

Specification	Value
TDP (PL1)	13 W 55 W
Tjunction max.	105 °C 105 °C

Technical details

Here you can find a comparison of 2nd and 3rd level cache sizes for Intel Core i5-3439Y and Intel Core i7-3940XM CPUs along with a list of ISA extensions.

Specification	Value
Instruction set (ISA)	x86-64 (64 bit) x86-64 (64 bit)
Virtualization	VT-x, VT-x EPT, VT-d VT-x, VT-x EPT, VT-d
ISA extensions	SSE4.1, SSE4.2, AVX SSE4.1, SSE4.2, AVX
L3-Cache	3.00 MB 8.00 MB
Architecture	Ivy Bridge Y Ivy Bridge H
Technology	22 nm 22 nm
Socket	BGA 1023 PGA 988
Release date	Q1/2013 Q3/2012