Core i7-7700HQ vs i7-7820HQ
Description
Both models i7-7700HQ and i7-7820HQ are based on Kaby Lake architecture.
The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.
Using the multithread performance as a reference, the i7-7700HQ gets a score of 208.3 k points while the i7-7820HQ gets 196.6 k points.
Summarizing, the i7-7700HQ is 1.1 times faster than the i7-7820HQ. To get a proper comparison between both models, take a look to the data shown below.
The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.
Using the multithread performance as a reference, the i7-7700HQ gets a score of 208.3 k points while the i7-7820HQ gets 196.6 k points.
Summarizing, the i7-7700HQ is 1.1 times faster than the i7-7820HQ. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906e9
906e9
Core
Kaby Lake-H
Kaby Lake-H
Base frecuency
2.8 GHz
2.9 GHz
Boost frecuency
3.8 GHz
3.9 GHz
Socket
BGA1440
BGA 1440
Cores/Threads
4/8
4/8
TDP
45 W
45 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+x4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
8192 kB
Date
January 2017
January 2017
Mean monothread perf.
56.29k points
55.85k points
Mean multithread perf.
208.33k points
196.55k 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
i7-7700HQ
i7-7820HQ
Test#1 (Integers)
23.27k
23.23k (x1)
Test#2 (FP)
20.35k
20.13k (x0.99)
Test#3 (Generic, ZIP)
4.76k
4.57k (x0.96)
Test#1 (Memory)
7.92k
7.92k (x1)
TOTAL
56.29k
55.85k (x0.99)
Multithread
i7-7700HQ
i7-7820HQ
Test#1 (Integers)
93.11k
85.54k (x0.92)
Test#2 (FP)
89.03k
87.07k (x0.98)
Test#3 (Generic, ZIP)
21.29k
20.37k (x0.96)
Test#1 (Memory)
4.9k
3.57k (x0.73)
TOTAL
208.33k
196.55k (x0.94)
Performance/W
i7-7700HQ
i7-7820HQ
Test#1 (Integers)
2069 points/W
1901 points/W
Test#2 (FP)
1978 points/W
1935 points/W
Test#3 (Generic, ZIP)
473 points/W
453 points/W
Test#1 (Memory)
109 points/W
79 points/W
TOTAL
4629 points/W
4368 points/W
Performance/GHz
i7-7700HQ
i7-7820HQ
Test#1 (Integers)
6124 points/GHz
5956 points/GHz
Test#2 (FP)
5354 points/GHz
5163 points/GHz
Test#3 (Generic, ZIP)
1251 points/GHz
1172 points/GHz
Test#1 (Memory)
2083 points/GHz
2030 points/GHz
TOTAL
14813 points/GHz
14321 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