Core i3-7100U vs i7-870
Description
The i3-7100U is based on Kaby Lake architecture while the i7-870 is based on Nehalem.
Using the multithread performance as a reference, the i3-7100U gets a score of 57.3 k points while the i7-870 gets 42.5 k points.
Summarizing, the i3-7100U is 1.3 times faster than the i7-870 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i3-7100U gets a score of 57.3 k points while the i7-870 gets 42.5 k points.
Summarizing, the i3-7100U is 1.3 times faster than the i7-870 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806e9
106e5
Core
Kaby Lake-U
Lynnfield
Base frecuency
2.4 GHz
2.933 GHz
Boost frecuency
2.4 GHz
3.6 GHz
Socket
BGA 1356
LGA 1156
Cores/Threads
2/4
4/8
TDP
15 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
8192 kB
Date
August 2016
September 2009
Mean monothread perf.
33.38k points
15.44k points
Mean multithread perf.
79.6k points
42.53k 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
i3-7100U
i7-870
Test#1 (Integers)
2.41k
1.98k (x0.82)
Test#2 (FP)
9.77k
4.36k (x0.45)
Test#3 (Generic, ZIP)
3.13k
2.24k (x0.72)
Test#1 (Memory)
3.55k
2.72k (x0.77)
TOTAL
18.86k
11.3k (x0.6)
Multithread
i3-7100U
i7-870
Test#1 (Integers)
5k
4.46k (x0.89)
Test#2 (FP)
21.48k
13.95k (x0.65)
Test#3 (Generic, ZIP)
7.39k
7.54k (x1.02)
Test#1 (Memory)
3.18k
1.7k (x0.53)
TOTAL
37.05k
27.65k (x0.75)
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
i3-7100U
i7-870
Test#1 (Integers)
8.66k
5.86k (x0.68)
Test#2 (FP)
12.31k
4.53k (x0.37)
Test#3 (Generic, ZIP)
3.28k
2.36k (x0.72)
Test#1 (Memory)
3.92k
2.69k (x0.69)
TOTAL
28.16k
15.44k (x0.55)
Multithread
i3-7100U
i7-870
Test#1 (Integers)
17.87k
17.53k (x0.98)
Test#2 (FP)
28.59k
13.65k (x0.48)
Test#3 (Generic, ZIP)
7.68k
7.93k (x1.03)
Test#1 (Memory)
3.15k
3.41k (x1.09)
TOTAL
57.28k
42.53k (x0.74)
Performance/W
i3-7100U
i7-870
Test#1 (Integers)
1191 points/W
185 points/W
Test#2 (FP)
1906 points/W
144 points/W
Test#3 (Generic, ZIP)
512 points/W
83 points/W
Test#1 (Memory)
210 points/W
36 points/W
TOTAL
3819 points/W
448 points/W
Performance/GHz
i3-7100U
i7-870
Test#1 (Integers)
3609 points/GHz
1629 points/GHz
Test#2 (FP)
5128 points/GHz
1257 points/GHz
Test#3 (Generic, ZIP)
1366 points/GHz
655 points/GHz
Test#1 (Memory)
1633 points/GHz
748 points/GHz
TOTAL
11735 points/GHz
4289 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