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Core i7-7700HQ vs i7-4790


Description
The i7-7700HQ is based on Kaby Lake architecture while the i7-4790 is based on Haswell.

Using the multithread performance as a reference, the i7-7700HQ gets a score of 208.3 k points while the i7-4790 gets 173.9 k points.

Summarizing, the i7-7700HQ is 1.2 times faster than the i7-4790 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
306c3
Core
Kaby Lake-H
Haswell
Architecture
Base frecuency
2.8 GHz
3.6 GHz
Boost frecuency
3.8 GHz
4 GHz
Socket
BGA1440
LGA 1150
Cores/Threads
4/8
4/8
TDP
45 W
84 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
8192 kB
Date
January 2017
May 2014
Mean monothread perf.
56.29k points
44.73k points
Mean multithread perf.
208.33k points
173.89k 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
i7-7700HQ
i7-4790
Test#1 (Integers)
3.82k
4.51k (x1.18)
Test#2 (FP)
15.49k
11.24k (x0.73)
Test#3 (Generic, ZIP)
4.96k
5.03k (x1.01)
Test#1 (Memory)
8.82k
5.02k (x0.57)
TOTAL
33.09k
25.8k (x0.78)

Multithread

i7-7700HQ

i7-4790
Test#1 (Integers)
14.15k
15.72k (x1.11)
Test#2 (FP)
65.81k
54.99k (x0.84)
Test#3 (Generic, ZIP)
22.41k
23.87k (x1.07)
Test#1 (Memory)
5.21k
5.48k (x1.05)
TOTAL
107.57k
100.06k (x0.93)

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
i7-7700HQ
i7-4790
Test#1 (Integers)
13.75k
13.52k (x0.98)
Test#2 (FP)
19.69k
11.94k (x0.61)
Test#3 (Generic, ZIP)
5.19k
4.96k (x0.96)
Test#1 (Memory)
8.92k
4.84k (x0.54)
TOTAL
47.55k
35.25k (x0.74)

Multithread

i7-7700HQ

i7-4790
Test#1 (Integers)
52.55k
54.7k (x1.04)
Test#2 (FP)
86.47k
52.41k (x0.61)
Test#3 (Generic, ZIP)
23.02k
24.5k (x1.06)
Test#1 (Memory)
5.4k
6.77k (x1.25)
TOTAL
167.43k
138.37k (x0.83)

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
i7-7700HQ
i7-4790
Test#1 (Integers)
13k
14.07k (x1.08)
Test#2 (FP)
20.34k
12.63k (x0.62)
Test#3 (Generic, ZIP)
4.77k
5.35k (x1.12)
Test#1 (Memory)
6.95k
4.98k (x0.72)
TOTAL
45.05k
37.03k (x0.82)

Multithread

i7-7700HQ

i7-4790
Test#1 (Integers)
52.7k
57.88k (x1.1)
Test#2 (FP)
89.69k
60.83k (x0.68)
Test#3 (Generic, ZIP)
22.49k
24.4k (x1.09)
Test#1 (Memory)
4.3k
6.95k (x1.62)
TOTAL
169.17k
150.07k (x0.89)

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
i7-4790
Test#1 (Integers)
23.27k
22.19k (x0.95)
Test#2 (FP)
20.35k
12.45k (x0.61)
Test#3 (Generic, ZIP)
4.76k
5.11k (x1.08)
Test#1 (Memory)
7.92k
4.98k (x0.63)
TOTAL
56.29k
44.73k (x0.79)

Multithread

i7-7700HQ

i7-4790
Test#1 (Integers)
93.11k
87.14k (x0.94)
Test#2 (FP)
89.03k
58k (x0.65)
Test#3 (Generic, ZIP)
21.29k
22.75k (x1.07)
Test#1 (Memory)
4.9k
6k (x1.22)
TOTAL
208.33k
173.89k (x0.83)

Performance/W
i7-7700HQ
i7-4790
Test#1 (Integers)
2069 points/W
1037 points/W
Test#2 (FP)
1978 points/W
691 points/W
Test#3 (Generic, ZIP)
473 points/W
271 points/W
Test#1 (Memory)
109 points/W
71 points/W
TOTAL
4629 points/W
2070 points/W

Performance/GHz
i7-7700HQ
i7-4790
Test#1 (Integers)
6124 points/GHz
5547 points/GHz
Test#2 (FP)
5354 points/GHz
3113 points/GHz
Test#3 (Generic, ZIP)
1251 points/GHz
1279 points/GHz
Test#1 (Memory)
2083 points/GHz
1244 points/GHz
TOTAL
14813 points/GHz
11183 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