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Core i7-7020U vs i7-4770K


Description
The i7-7020U is based on Kaby Lake architecture while the i7-4770K is based on Haswell.

Using the multithread performance as a reference, the i7-7020U gets a score of 73.1 k points while the i7-4770K gets 173.9 k points.

Summarizing, the i7-4770K is 2.4 times faster than the i7-7020U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ea
306c3
Core
Kaby Lake-U
Haswell
Architecture
Base frecuency
2.3 GHz
3.5 GHz
Boost frecuency
2.3 GHz
3.9 GHz
Socket
BGA 1356
LGA 1150
Cores/Threads
2/4
4/8
TDP
15 W
84 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
8192 kB
Date
April 2018
June 2013
Mean monothread perf.
33.63k points
43.21k points
Mean multithread perf.
73.15k points
173.93k 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
i7-7020U
i7-4770K
Test#1 (Integers)
2.3k
4.5k (x1.96)
Test#2 (FP)
8.36k
11.23k (x1.34)
Test#3 (Generic, ZIP)
2.75k
5.16k (x1.88)
Test#1 (Memory)
4.64k
5.28k (x1.14)
TOTAL
18.04k
26.17k (x1.45)

Multithread

i7-7020U

i7-4770K
Test#1 (Integers)
4.74k
16.27k (x3.43)
Test#2 (FP)
17.96k
58.37k (x3.25)
Test#3 (Generic, ZIP)
6.95k
24.33k (x3.5)
Test#1 (Memory)
4.95k
10.42k (x2.1)
TOTAL
34.61k
109.39k (x3.16)

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
i7-7020U
i7-4770K
Test#1 (Integers)
8.17k
13.78k (x1.69)
Test#2 (FP)
12.42k
12.7k (x1.02)
Test#3 (Generic, ZIP)
2.87k
5.23k (x1.82)
Test#1 (Memory)
4.68k
4.92k (x1.05)
TOTAL
28.13k
36.63k (x1.3)

Multithread

i7-7020U

i7-4770K
Test#1 (Integers)
17.65k
56.86k (x3.22)
Test#2 (FP)
30.44k
60.65k (x1.99)
Test#3 (Generic, ZIP)
7.19k
24.02k (x3.34)
Test#1 (Memory)
4.79k
5.22k (x1.09)
TOTAL
60.07k
146.75k (x2.44)

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
i7-7020U
i7-4770K
Test#1 (Integers)
14.25k
21.28k (x1.49)
Test#2 (FP)
12.72k
12.25k (x0.96)
Test#3 (Generic, ZIP)
2.81k
4.78k (x1.7)
Test#1 (Memory)
3.86k
4.9k (x1.27)
TOTAL
33.63k
43.21k (x1.28)

Multithread

i7-7020U

i7-4770K
Test#1 (Integers)
31.11k
86.17k (x2.77)
Test#2 (FP)
31.15k
56.81k (x1.82)
Test#3 (Generic, ZIP)
6.9k
21.88k (x3.17)
Test#1 (Memory)
3.99k
9.07k (x2.28)
TOTAL
73.15k
173.93k (x2.38)

Performance/W
i7-7020U
i7-4770K
Test#1 (Integers)
2074 points/W
1026 points/W
Test#2 (FP)
2076 points/W
676 points/W
Test#3 (Generic, ZIP)
460 points/W
260 points/W
Test#1 (Memory)
266 points/W
108 points/W
TOTAL
4877 points/W
2071 points/W

Performance/GHz
i7-7020U
i7-4770K
Test#1 (Integers)
6196 points/GHz
5456 points/GHz
Test#2 (FP)
5528 points/GHz
3141 points/GHz
Test#3 (Generic, ZIP)
1221 points/GHz
1226 points/GHz
Test#1 (Memory)
1679 points/GHz
1257 points/GHz
TOTAL
14624 points/GHz
11079 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