Core i3-8100 vs i7-2640M
Description
The i3-8100 is based on Coffee Lake architecture while the i7-2640M is based on Sandy Bridge.
Using the multithread performance as a reference, the i3-8100 gets a score of 157.6 k points while the i7-2640M gets 54.9 k points.
Summarizing, the i3-8100 is 2.9 times faster than the i7-2640M. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i3-8100 gets a score of 157.6 k points while the i7-2640M gets 54.9 k points.
Summarizing, the i3-8100 is 2.9 times faster than the i7-2640M. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906eb
206a7
Core
Coffee Lake-S
Sandy Bridge
Base frecuency
3.6 GHz
2.8 GHz
Boost frecuency
3.6 GHz
3.5 GHz
Socket
LGA 1151
PGA 988B
Cores/Threads
4/4
2/4
TDP
65 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
6144 kB
4096 kB
Date
October 2017
September 2011
Mean monothread perf.
59.18k points
25.86k points
Mean multithread perf.
200.4k points
54.86k 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
i3-8100
i7-2640M
Test#1 (Integers)
13.52k
9.63k (x0.71)
Test#2 (FP)
20.57k
8.33k (x0.41)
Test#3 (Generic, ZIP)
4.96k
4.08k (x0.82)
Test#1 (Memory)
7.91k
3.82k (x0.48)
TOTAL
46.96k
25.86k (x0.55)
Multithread
i3-8100
i7-2640M
Test#1 (Integers)
53.4k
21.22k (x0.4)
Test#2 (FP)
80.87k
19.6k (x0.24)
Test#3 (Generic, ZIP)
19.03k
10.09k (x0.53)
Test#1 (Memory)
4.29k
3.94k (x0.92)
TOTAL
157.59k
54.86k (x0.35)
Performance/W
i3-8100
i7-2640M
Test#1 (Integers)
822 points/W
606 points/W
Test#2 (FP)
1244 points/W
560 points/W
Test#3 (Generic, ZIP)
293 points/W
288 points/W
Test#1 (Memory)
66 points/W
112 points/W
TOTAL
2425 points/W
1567 points/W
Performance/GHz
i3-8100
i7-2640M
Test#1 (Integers)
3757 points/GHz
2752 points/GHz
Test#2 (FP)
5714 points/GHz
2380 points/GHz
Test#3 (Generic, ZIP)
1377 points/GHz
1165 points/GHz
Test#1 (Memory)
2196 points/GHz
1092 points/GHz
TOTAL
13044 points/GHz
7390 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4