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Core i7-7500U vs i7-6700


Description
The i7-7500U is based on Kaby Lake architecture while the i7-6700 is based on Skylake.

Using the multithread performance as a reference, the i7-7500U gets a score of 86.9 k points while the i7-6700 gets 243.4 k points.

Summarizing, the i7-6700 is 2.8 times faster than the i7-7500U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
506e3
Core
Kaby Lake-U
Skylake-S
Architecture
Base frecuency
2.7 GHz
3.4 GHz
Boost frecuency
3.5 GHz
4 GHz
Socket
BGA1356
LGA 1151
Cores/Threads
2/4
4/8
TDP
15 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
256 kB
Cache L3
4096 kB
8192 kB
Date
August 2016
May 2015
Mean monothread perf.
48.67k points
57.76k points
Mean multithread perf.
86.94k points
243.4k points

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i7-7500U
i7-6700
Test#1 (Integers)
20.74k
24.83k (x1.2)
Test#2 (FP)
18.41k
21.82k (x1.19)
Test#3 (Generic, ZIP)
3.98k
4.98k (x1.25)
Test#1 (Memory)
5.54k
6.14k (x1.11)
TOTAL
48.67k
57.76k (x1.19)

Multithread

i7-7500U

i7-6700
Test#1 (Integers)
37.34k
109.79k (x2.94)
Test#2 (FP)
35.79k
102.39k (x2.86)
Test#3 (Generic, ZIP)
8.34k
24.72k (x2.97)
Test#1 (Memory)
5.48k
6.51k (x1.19)
TOTAL
86.94k
243.4k (x2.8)

Performance/W
i7-7500U
i7-6700
Test#1 (Integers)
2489 points/W
1689 points/W
Test#2 (FP)
2386 points/W
1575 points/W
Test#3 (Generic, ZIP)
556 points/W
380 points/W
Test#1 (Memory)
365 points/W
100 points/W
TOTAL
5796 points/W
3745 points/W

Performance/GHz
i7-7500U
i7-6700
Test#1 (Integers)
5926 points/GHz
6206 points/GHz
Test#2 (FP)
5260 points/GHz
5456 points/GHz
Test#3 (Generic, ZIP)
1137 points/GHz
1244 points/GHz
Test#1 (Memory)
1584 points/GHz
1535 points/GHz
TOTAL
13907 points/GHz
14441 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