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Core i5-2540M vs i3-7100U


Description
The i5-2540M is based on Sandy Bridge architecture while the i3-7100U is based on Kaby Lake.

Using the multithread performance as a reference, the i5-2540M gets a score of 48.6 k points while the i3-7100U gets 60.5 k points.

Summarizing, the i3-7100U 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
206a7
806e9
Core
Sandy Bridge
Kaby Lake-U
Architecture
Base frecuency
2.6 GHz
2.4 GHz
Boost frecuency
3.3 GHz
2.4 GHz
Socket
BGA 1023, rPGA 988B
BGA 1356
Cores/Threads
2/4
2/4
TDP
35 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
3072 kB
3072 kB
Date
February 2011
August 2016
Mean monothread perf.
21.12k points
33.38k points
Mean multithread perf.
48.62k points
79.6k 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
i5-2540M
i3-7100U
Test#1 (Integers)
7.8k
8.76k (x1.12)
Test#2 (FP)
7.03k
13.49k (x1.92)
Test#3 (Generic, ZIP)
3.36k
3.21k (x0.96)
Test#1 (Memory)
2.93k
3.9k (x1.33)
TOTAL
21.12k
29.36k (x1.39)

Multithread

i5-2540M

i3-7100U
Test#1 (Integers)
18.55k
18.33k (x0.99)
Test#2 (FP)
17.42k
31.08k (x1.78)
Test#3 (Generic, ZIP)
8.43k
7.5k (x0.89)
Test#1 (Memory)
4.22k
3.61k (x0.85)
TOTAL
48.62k
60.52k (x1.24)

Performance/W
i5-2540M
i3-7100U
Test#1 (Integers)
530 points/W
1222 points/W
Test#2 (FP)
498 points/W
2072 points/W
Test#3 (Generic, ZIP)
241 points/W
500 points/W
Test#1 (Memory)
121 points/W
240 points/W
TOTAL
1389 points/W
4035 points/W

Performance/GHz
i5-2540M
i3-7100U
Test#1 (Integers)
2364 points/GHz
3652 points/GHz
Test#2 (FP)
2132 points/GHz
5622 points/GHz
Test#3 (Generic, ZIP)
1017 points/GHz
1337 points/GHz
Test#1 (Memory)
888 points/GHz
1624 points/GHz
TOTAL
6400 points/GHz
12235 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