CPUBoss Review Our evaluation of 4940MX vs 4790K among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

8.4

CPUBoss Score

Combination of all six facets

Winner
Intel Core i7 4790K 

CPUBoss recommends the Intel Core i7 4790K  based on its performance and value.

See full details

Cast your vote Do you agree or disagree with CPUBoss?

Thanks for adding your opinion. Follow us on Facebook to stay up to date with the latest news!
VS
Front view of Intel Core i7 4790K

Intel Core i7 4790K

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Core i7 4940MX

Reasons to consider the
Intel Core i7 4940MX

Report a correction
Much better performance per watt 32.86 pt/W vs 11.42 pt/W Around 3x better performance per watt
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Better turbo clock speed 1,350 MHz vs 1,250 MHz Around 10% better turbo clock speed
Lower typical power consumption 46.31W vs 71.5W More than 35% lower typical power consumption
Higher GPU clock speed 400 MHz vs 350 MHz Around 15% higher GPU clock speed
Lower annual home energy cost 13.73 $/year vs 21.2 $/year More than 35% lower annual home energy cost
Lower annual commercial energy cost 49.93 $/year vs 77.09 $/year More than 35% lower annual commercial energy cost
Front view of Intel Core i7 4790K

Reasons to consider the
Intel Core i7 4790K

Report a correction
Significantly higher clock speed 4 GHz vs 3.1 GHz Around 30% higher clock speed
Higher turbo clock speed 4.4 GHz vs 4 GHz More than 10% higher turbo clock speed
Much better performance per dollar 3.7 pt/$ vs 2.5 pt/$ Around 50% better performance per dollar
Better 3DMark06 CPU score 79 vs 69.6 Around 15% better 3DMark06 CPU score
Newer Apr, 2014 vs Jan, 2014 Release date 3 months later

Benchmarks Real world tests of Core i7 4940MX vs 4790K

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 4940MX
4,740,000 MB/s
Core i7 4790K
5,140,000 MB/s

3D Mark 06 (CPU)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 4940MX  vs
4790K 
Clock speed 3.1 GHz 4 GHz
Turbo clock speed 4 GHz 4.4 GHz
Cores Quad core Quad core
Is unlocked Yes Yes

features

Has a NX bit Yes Yes
Supports trusted computing Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
F16C
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
FMA3
SSE4.2
Supplemental SSE3
AES
AVX 2.0
Supports dynamic frequency scaling Yes Yes

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 12,800 MB/s 25,600 MB/s
Maximum memory size 32,768 MB 32,768 MB

details

Core i7 4940MX  vs
4790K 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 4600 Intel® HD Graphics 4600
Number of displays supported 3 3
GPU clock speed 400 MHz 350 MHz
Turbo clock speed 1,350 MHz 1,250 MHz

power consumption

TDP 57W 88W
Annual home energy cost 13.73 $/year 21.2 $/year
Annual commercial energy cost 49.93 $/year 77.09 $/year
Performance per watt 32.86 pt/W 11.42 pt/W
Typical power consumption 46.31W 71.5W

bus

Architecture DMI 2.0 DMI 2.0
Number of links 1 0
Transfer rate 5,000 MT/s 5,000 MT/s
Intel Core i7 4940MX
Report a correction
Intel Core i7 4790K
Report a correction

Comments

comments powered by Disqus