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Core i7-7020U vs i5-2540M


Description
The i7-7020U is based on Kaby Lake architecture while the i5-2540M is based on Sandy Bridge.

Using the multithread performance as a reference, the i7-7020U gets a score of 60.1 k points while the i5-2540M gets 48.6 k points.

Summarizing, the i7-7020U is 1.2 times faster than the i5-2540M . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ea
206a7
Core
Kaby Lake-U
Sandy Bridge
Architecture
Base frecuency
2.3 GHz
2.6 GHz
Boost frecuency
2.3 GHz
3.3 GHz
Socket
BGA 1356
BGA 1023, rPGA 988B
Cores/Threads
2/4
2/4
TDP
15 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
3072 kB
3072 kB
Date
April 2018
February 2011
Mean monothread perf.
33.63k points
21.12k points
Mean multithread perf.
73.15k points
48.62k points

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
i5-2540M
Test#1 (Integers)
8.17k
7.8k (x0.96)
Test#2 (FP)
12.42k
7.03k (x0.57)
Test#3 (Generic, ZIP)
2.87k
3.36k (x1.17)
Test#1 (Memory)
4.68k
2.93k (x0.63)
TOTAL
28.13k
21.12k (x0.75)

Multithread

i7-7020U

i5-2540M
Test#1 (Integers)
17.65k
18.55k (x1.05)
Test#2 (FP)
30.44k
17.42k (x0.57)
Test#3 (Generic, ZIP)
7.19k
8.43k (x1.17)
Test#1 (Memory)
4.79k
4.22k (x0.88)
TOTAL
60.07k
48.62k (x0.81)

Performance/W
i7-7020U
i5-2540M
Test#1 (Integers)
1177 points/W
530 points/W
Test#2 (FP)
2029 points/W
498 points/W
Test#3 (Generic, ZIP)
479 points/W
241 points/W
Test#1 (Memory)
320 points/W
121 points/W
TOTAL
4005 points/W
1389 points/W

Performance/GHz
i7-7020U
i5-2540M
Test#1 (Integers)
3550 points/GHz
2364 points/GHz
Test#2 (FP)
5399 points/GHz
2132 points/GHz
Test#3 (Generic, ZIP)
1247 points/GHz
1017 points/GHz
Test#1 (Memory)
2035 points/GHz
888 points/GHz
TOTAL
12231 points/GHz
6400 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