Intel Core i7-3940XM vs Core i7-3740QM

General info

Comparing Core i7-3940XM and Core i7-3740QM processor market type (desktop or notebook), architecture, sales start time and price.

Place in our rating
 
Value for money (0-100)
0.60
 
0.66
Market segment
Laptop
 
Laptop
Series
Intel Core i7
 
Intel Core i7
Architecture codename
Ivy Bridge
 
Ivy Bridge
Launch date
3 September 2012 (8 years ago)
 
3 September 2012 (8 years ago)
Launch price (MSRP)
$1,096
 
$378
Price now
$525 (0.5x MSRP)
 
$477 (1.3x MSRP)

Technical specs

Core i7-3940XM and Core i7-3740QM 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 cores
4 (Quad-Core)
 
4 (Quad-Core)
Threads
8
 
8
Base clock speed
3 GHz
 
2.7 GHz
Boost clock speed
3.9 GHz
 
3.7 GHz
L1 cache
64K (per core)
 
64K (per core)
L2 cache
256K (per core)
 
256K (per core)
L3 cache
8 MB (shared)
 
6 MB (shared)
Chip lithography
22 nm
 
22 nm
Die size
160 mm2
 
160 mm2
Maximum core temperature
105 °C
 
105 °C
Number of transistors
1,400 million
 
1,400 million
64 bit support
+
 
+
Unlocked multiplier
+
 
-

Compatibility

Information on Core i7-3940XM and Core i7-3740QM 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 configuration
1
 
1
Socket
FCPGA988
 
FCPGA988
Thermal design power (TDP)
55 Watt
 
45 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i7-3940XM and Core i7-3740QM. You'll probably need this information if you require some particular technology.

Instruction set extensions
Intel® AVX
 
Intel® AVX
AES-NI
+
 
+
AVX
+
 
+
vPro
+
 
+
Enhanced SpeedStep (EIST)
+
 
+
My WiFi
+
 
+
Turbo Boost Technology
2.0
 
2.0
Hyper-Threading Technology
+
 
+
Idle States
+
 
+
Thermal Monitoring
+
 
+
Flex Memory Access
+
 
+
Demand Based Switching
-
 
-
FDI
+
 
+
Fast Memory Access
+
 
+

Security technologies

Core i7-3940XM and Core i7-3740QM technologies aimed at improving security, for example, by protecting against hacks.

TXT
+
 
+
EDB
+
 
+
Secure Key
no data
 
+
Identity Protection
+
 
+
Anti-Theft
+
 
+

Virtualization technologies

Virtual machine speed-up technologies supported by Core i7-3940XM and Core i7-3740QM 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 i7-3740QM. Depending on the motherboards, higher memory frequencies may be supported.

Supported memory types
DDR3/L/-RS 1333/1600
 
DDR3/L/-RS 1333/1600
Maximum memory size
32 GB
 
32 GB
Max memory channels
2
 
2
Maximum memory bandwidth
25.6 GB/s
 
25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Quick Sync Video
+
 
+
Clear Video HD
+
 
+
Graphics max frequency
1.35 GHz
 
1.3 GHz
InTru 3D
+
 
+

Graphics interfaces

Available interfaces and connections of Core i7-3940XM and Core i7-3740QM integrated GPUs.

Number of displays supported
3
 
3
eDP
+
 
+
DisplayPort
+
 
+
HDMI
+
 
+
SDVO
+
 
+
CRT
+
 
+

Peripherals

Specifications and connection of peripherals supported by Core i7-3940XM and Core i7-3740QM.

PCIe version
3.0
 
3.0
PCI Express lanes
16
 
16

Benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

Overall 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 6.49 +1.1%
i7-3740QM 6.42

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

i7-3940XM 5252 +6.1%
i7-3740QM 4951

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

i7-3940XM 7176 +5%
i7-3740QM 6837

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

i7-3940XM 3.7 +5.7%
i7-3740QM 3.5

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i7-3940XM 41 +5.1%
i7-3740QM 39

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i7-3940XM 161 +4.5%
i7-3740QM 154

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

i7-3940XM 4124
i7-3740QM 4680 +13.5%

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

i7-3940XM 6.98 +8.6%
i7-3740QM 7.58

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

i7-3940XM 7.5 +7.1%
i7-3740QM 7

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

i7-3940XM 1.62 +5.9%
i7-3740QM 1.53

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

i7-3940XM 20564 +3.9%
i7-3740QM 19798

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 5697 +1.2%
i7-3740QM 5632

Mining hashrates

Cryptocurrency mining performance of Core i7-3940XM and Core i7-3740QM. Usually measured in megahashes per second.

Bitcoin / BTC (SHA256)
5.6 Mh/s −5.4%
 
5.9 Mh/s +5.4%

Gaming performance

Let's see how good Core i7-3940XM and Core i7-3740QM are for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately. Also, your gaming PC must have a decent enough GPU to perform well.

Both CPUs satisfy the 99% minimum and 91% recommended requirements of all games known to us.

Minimum
99%
Recommended
91%
Minimum
99%
Recommended
91%

Competitors of Core i7-3940XM from AMD

We believe that the nearest equivalent to Core i7-3940XM from AMD is Phenom II X2 N620, which is nearly equal in speed and higher by 2 positions in our rating.

Here are some closest AMD rivals to Core i7-3940XM:

Competitors of Core i7-3740QM from AMD

We believe that the nearest equivalent to Core i7-3740QM from AMD is Phenom II X2 N620, which is faster by 1% and higher by 11 positions in our rating.

Here are some closest AMD rivals to Core i7-3740QM:

Advantages of Intel Core i7-3940XM

1.1% better performance in benchmarks

Higher boost clock speed (3900 vs 3700 MHz)

Higher base clock speed (3000 vs 2700 MHz)

Unlocked

Advantages of Intel Core i7-3740QM

Cheaper ($477 vs $525)

Lower power consumption (45W vs 55W), meaning that the rival with higher TDP might require a better cooler or other thermal solution.

So, which one is the better CPU?

Technical City couldn't decide between Intel Core i7-3940XM and Intel Core i7-3740QM. The differences in performance seem too small.

Should you still have questions on choice between Core i7-3940XM and Core i7-3740QM, ask them in Comments section, and we shall answer.

Cast your vote

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favourite CPU.

Intel Core i7-3940XM
Intel Core i7-3740QM
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Advices and comments

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