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Core i7-6600U vs m7-6Y75


Description
Both models i7-6600U and m7-6Y75 are based on Skylake architecture.

Sky Lake is also known as 6th generation Core. Include Thunderbolt 3.0, SATA Express and Iris Pro graphics with DirectX 12. It uses LGA 1151 socket for mainstream models and LGA 2066 for X-Series. Sky Lake comes with AVX2 support in all mainstreams CPUs and AVX-512 in some high end models.

Using the multithread performance as a reference, the i7-6600U gets a score of 45.1 k points while the m7-6Y75 gets 53.6 k points.

Summarizing, the m7-6Y75 is 1.2 times faster than the i7-6600U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
406e3
Core
Skylake-U
Skylake-Y
Architecture
Base frecuency
2.6 GHz
1.2 GHz
Boost frecuency
3.4 GHz
3.1 GHz
Socket
BGA1356
BGA1515
Cores/Threads
2/4
2/4
TDP
15 W
4,5 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
4096 kB
4096 kB
Date
September 2015
September 2015
Mean monothread perf.
39.73k points
33.86k points
Mean multithread perf.
79.22k points
53.58k points

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-6600U
m7-6Y75
Test#1 (Integers)
8.49k
10.24k (x1.21)
Test#2 (FP)
10.92k
15.33k (x1.4)
Test#3 (Generic, ZIP)
2.76k
2.97k (x1.07)
Test#1 (Memory)
4.93k
5.32k (x1.08)
TOTAL
27.1k
33.86k (x1.25)

Multithread

i7-6600U

m7-6Y75
Test#1 (Integers)
14.11k
16.78k (x1.19)
Test#2 (FP)
20.05k
25.09k (x1.25)
Test#3 (Generic, ZIP)
6.17k
6.14k (x0.99)
Test#1 (Memory)
4.73k
5.58k (x1.18)
TOTAL
45.05k
53.58k (x1.19)

Performance/W
i7-6600U
m7-6Y75
Test#1 (Integers)
940 points/W
4195 points/W
Test#2 (FP)
1337 points/W
6272 points/W
Test#3 (Generic, ZIP)
411 points/W
1534 points/W
Test#1 (Memory)
315 points/W
1394 points/W
TOTAL
3004 points/W
13395 points/W

Performance/GHz
i7-6600U
m7-6Y75
Test#1 (Integers)
2497 points/GHz
3304 points/GHz
Test#2 (FP)
3211 points/GHz
4945 points/GHz
Test#3 (Generic, ZIP)
813 points/GHz
957 points/GHz
Test#1 (Memory)
1449 points/GHz
1715 points/GHz
TOTAL
7970 points/GHz
10922 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4