Core i7-6820HQ vs i7-7660U
Description
The i7-6820HQ is based on Skylake architecture while the i7-7660U is based on Kaby Lake.
Using the multithread performance as a reference, the i7-6820HQ gets a score of 205.9 k points while the i7-7660U gets 132.8 k points.
Summarizing, the i7-6820HQ is 1.6 times faster than the i7-7660U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-6820HQ gets a score of 205.9 k points while the i7-7660U gets 132.8 k points.
Summarizing, the i7-6820HQ is 1.6 times faster than the i7-7660U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
506e3
806e9
Core
Skylake-H
Kaby Lake-U
Base frecuency
2.7 GHz
2.5 GHz
Boost frecuency
3.6 GHz
4 GHz
Socket
BGA1440
BGA 1356
Cores/Threads
4/8
2/4
TDP
45 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
8192 kB
4096 kB
Date
October 2015
January 2017
Mean monothread perf.
50.1k points
57.46k points
Mean multithread perf.
205.89k points
132.81k 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
i7-6820HQ
i7-7660U
Test#1 (Integers)
20.99k
22.46k (x1.07)
Test#2 (FP)
18.63k
19.29k (x1.04)
Test#3 (Generic, ZIP)
4.33k
4.77k (x1.1)
Test#1 (Memory)
6.15k
10.94k (x1.78)
TOTAL
50.1k
57.46k (x1.15)
Multithread
i7-6820HQ
i7-7660U
Test#1 (Integers)
91.8k
56.67k (x0.62)
Test#2 (FP)
87.24k
46.95k (x0.54)
Test#3 (Generic, ZIP)
20.55k
12.36k (x0.6)
Test#1 (Memory)
6.3k
16.84k (x2.67)
TOTAL
205.89k
132.81k (x0.65)
Performance/W
i7-6820HQ
i7-7660U
Test#1 (Integers)
2040 points/W
3778 points/W
Test#2 (FP)
1939 points/W
3130 points/W
Test#3 (Generic, ZIP)
457 points/W
824 points/W
Test#1 (Memory)
140 points/W
1122 points/W
TOTAL
4575 points/W
8854 points/W
Performance/GHz
i7-6820HQ
i7-7660U
Test#1 (Integers)
5831 points/GHz
5614 points/GHz
Test#2 (FP)
5174 points/GHz
4823 points/GHz
Test#3 (Generic, ZIP)
1204 points/GHz
1193 points/GHz
Test#1 (Memory)
1708 points/GHz
2735 points/GHz
TOTAL
13917 points/GHz
14365 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4