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Differences What are the advantages of each

Front view of Intel Core i7 4578U

Reasons to consider the
Intel Core i7 4578U

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CPUBoss is not aware of any important advantages of the 4578U vs the 3615QM.

Front view of Intel Core i7 3615QM

Reasons to consider the
Intel Core i7 3615QM

Report a correction

CPUBoss is not aware of any important advantages of the 3615QM vs the 4578U.

Benchmarks Real world tests of Core i7 4578U vs 3615QM

CompuBench 1.5 (Bitcoin mining) Data courtesy CompuBench

Core i7 4578U
23.18 mHash/s
Core i7 3615QM
8.64 mHash/s

CompuBench 1.5 (Face detection)

Core i7 4578U
14.59 mPixels/s
Core i7 3615QM
3.18 mPixels/s

CompuBench 1.5 (T-Rex) Data courtesy CompuBench

Core i7 4578U
-1 fps
Core i7 3615QM
1.09 fps

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 4578U
4,300,000 MB/s
Core i7 3615QM
2,220,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i7 4578U  vs
3615QM 
Clock speed 3 GHz 2.3 GHz
Turbo clock speed 3.5 GHz 3.3 GHz
Cores Dual core Quad core
Is unlocked No No

features

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

power consumption

TDP 28W 45W
Annual home energy cost 6.75 $/year 10.84 $/year
Performance per watt 40.51 pt/W 10.74 pt/W
Typical power consumption 22.75W 36.56W

bus

Architecture DMI 2.0 DMI
Number of links 1 1
Transfer rate 5,000 MT/s 5,000 MT/s

details

Core i7 4578U  vs
3615QM 
Architecture x86-64 x86-64
Threads 4 8
L2 cache 0.5 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 4 MB 6 MB
L3 cache per core 2 MB/core 1.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3 GHz 3.03 GHz
Overclocked clock speed (Water) 3 GHz 2.3 GHz
Overclocked clock speed (Air) 3 GHz 3.03 GHz

integrated graphics

GPU GPU GPU
Label Intel® Iris™ Graphics 5100 Intel® HD Graphics 4000
Number of displays supported 3 3
GPU clock speed 200 MHz 650 MHz
Turbo clock speed 1,200 MHz 1,200 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC No No
Maximum bandwidth 12,800 MB/s 12,800 MB/s
Maximum memory size 16,384 MB 32,768 MB
Intel Core i7 4578U
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Intel Core i7 3615QM
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