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Core i7-7700 vs i7-7700HQ


Description
Both models i7-7700 and i7-7700HQ 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 i7-7700 gets a score of 257.5 k points while the i7-7700HQ gets 208.3 k points.

Summarizing, the i7-7700 is 1.2 times faster than the i7-7700HQ. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
906e9
Core
Kaby Lake-S
Kaby Lake-H
Architecture
Base frecuency
3.6 GHz
2.8 GHz
Boost frecuency
4.2 GHz
3.8 GHz
Socket
LGA 1151
BGA1440
Cores/Threads
4/8
4/8
TDP
65 W
45 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
September 2016
January 2017
Mean monothread perf.
67.33k points
56.29k points
Mean multithread perf.
257.52k points
208.33k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-7700
i7-7700HQ
Test#1 (Integers)
4.23k
3.82k (x0.9)
Test#2 (FP)
16.76k
15.49k (x0.92)
Test#3 (Generic, ZIP)
5.42k
4.96k (x0.91)
Test#1 (Memory)
12.23k
8.82k (x0.72)
TOTAL
38.64k
33.09k (x0.86)

Multithread

i7-7700

i7-7700HQ
Test#1 (Integers)
16.71k
14.15k (x0.85)
Test#2 (FP)
73.1k
65.81k (x0.9)
Test#3 (Generic, ZIP)
25.76k
22.41k (x0.87)
Test#1 (Memory)
7.12k
5.21k (x0.73)
TOTAL
122.68k
107.57k (x0.88)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-7700
i7-7700HQ
Test#1 (Integers)
15.33k
13.75k (x0.9)
Test#2 (FP)
21.94k
19.69k (x0.9)
Test#3 (Generic, ZIP)
5.85k
5.19k (x0.89)
Test#1 (Memory)
12.52k
8.92k (x0.71)
TOTAL
55.64k
47.55k (x0.85)

Multithread

i7-7700

i7-7700HQ
Test#1 (Integers)
61.73k
52.55k (x0.85)
Test#2 (FP)
99.91k
86.47k (x0.87)
Test#3 (Generic, ZIP)
27.03k
23.02k (x0.85)
Test#1 (Memory)
9.28k
5.4k (x0.58)
TOTAL
197.96k
167.43k (x0.85)

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
i7-7700
i7-7700HQ
Test#1 (Integers)
15.34k
13k (x0.85)
Test#2 (FP)
23.41k
20.34k (x0.87)
Test#3 (Generic, ZIP)
5.87k
4.77k (x0.81)
Test#1 (Memory)
11.07k
6.95k (x0.63)
TOTAL
55.69k
45.05k (x0.81)

Multithread

i7-7700

i7-7700HQ
Test#1 (Integers)
62.68k
52.7k (x0.84)
Test#2 (FP)
105.24k
89.69k (x0.85)
Test#3 (Generic, ZIP)
26.35k
22.49k (x0.85)
Test#1 (Memory)
5.79k
4.3k (x0.74)
TOTAL
200.07k
169.17k (x0.85)

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
i7-7700
i7-7700HQ
Test#1 (Integers)
26.7k
23.27k (x0.87)
Test#2 (FP)
23.7k
20.35k (x0.86)
Test#3 (Generic, ZIP)
5.46k
4.76k (x0.87)
Test#1 (Memory)
11.48k
7.92k (x0.69)
TOTAL
67.33k
56.29k (x0.84)

Multithread

i7-7700

i7-7700HQ
Test#1 (Integers)
115.97k
93.11k (x0.8)
Test#2 (FP)
108.43k
89.03k (x0.82)
Test#3 (Generic, ZIP)
26.28k
21.29k (x0.81)
Test#1 (Memory)
6.85k
4.9k (x0.72)
TOTAL
257.52k
208.33k (x0.81)

Performance/W
i7-7700
i7-7700HQ
Test#1 (Integers)
1784 points/W
2069 points/W
Test#2 (FP)
1668 points/W
1978 points/W
Test#3 (Generic, ZIP)
404 points/W
473 points/W
Test#1 (Memory)
105 points/W
109 points/W
TOTAL
3962 points/W
4629 points/W

Performance/GHz
i7-7700
i7-7700HQ
Test#1 (Integers)
6356 points/GHz
6124 points/GHz
Test#2 (FP)
5643 points/GHz
5354 points/GHz
Test#3 (Generic, ZIP)
1300 points/GHz
1251 points/GHz
Test#1 (Memory)
2733 points/GHz
2083 points/GHz
TOTAL
16032 points/GHz
14813 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