Core i5-6400 vs i7-8700
Description
The i5-6400 is based on Skylake architecture while the i7-8700 is based on Coffee Lake.
Using the multithread performance as a reference, the i5-6400 gets a score of 174.1 k points while the i7-8700 gets 389 k points.
Summarizing, the i7-8700 is 2.2 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i5-6400 gets a score of 174.1 k points while the i7-8700 gets 389 k points.
Summarizing, the i7-8700 is 2.2 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
506e3
906ea
Core
Skylake-S
Coffee Lake-S
Base frecuency
2.7 GHz
3.2 GHz
Boost frecuency
3.3 GHz
4.6 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/4
6/12
TDP
65 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
6144 kB
12288 kB
Date
September 2015
October 2017
Mean monothread perf.
48.05k points
75.01k points
Mean multithread perf.
174.05k points
388.95k 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
i5-6400
i7-8700
Test#1 (Integers)
3.2k
4.48k (x1.4)
Test#2 (FP)
12.81k
18.31k (x1.43)
Test#3 (Generic, ZIP)
4.18k
5.88k (x1.41)
Test#1 (Memory)
4.3k
13.45k (x3.13)
TOTAL
24.49k
42.12k (x1.72)
Multithread
i5-6400
i7-8700
Test#1 (Integers)
11.45k
27.35k (x2.39)
Test#2 (FP)
46.67k
124.94k (x2.68)
Test#3 (Generic, ZIP)
14.69k
43.23k (x2.94)
Test#1 (Memory)
5.92k
7.08k (x1.2)
TOTAL
78.73k
202.61k (x2.57)
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
i5-6400
i7-8700
Test#1 (Integers)
11.56k
16.45k (x1.42)
Test#2 (FP)
16.53k
23.74k (x1.44)
Test#3 (Generic, ZIP)
4.3k
6.24k (x1.45)
Test#1 (Memory)
3.97k
13.43k (x3.38)
TOTAL
36.36k
59.86k (x1.65)
Multithread
i5-6400
i7-8700
Test#1 (Integers)
43.01k
100.94k (x2.35)
Test#2 (FP)
64.46k
159.09k (x2.47)
Test#3 (Generic, ZIP)
16.14k
43.61k (x2.7)
Test#1 (Memory)
5.91k
6.59k (x1.12)
TOTAL
129.51k
310.23k (x2.4)
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
i5-6400
i7-8700
Test#1 (Integers)
11.82k
16.57k (x1.4)
Test#2 (FP)
18.36k
25.52k (x1.39)
Test#3 (Generic, ZIP)
4.43k
6.01k (x1.36)
Test#1 (Memory)
4.95k
12.82k (x2.59)
TOTAL
39.56k
60.92k (x1.54)
Multithread
i5-6400
i7-8700
Test#1 (Integers)
46.04k
101.85k (x2.21)
Test#2 (FP)
69.47k
170.31k (x2.45)
Test#3 (Generic, ZIP)
16.33k
43.12k (x2.64)
Test#1 (Memory)
7.74k
7.11k (x0.92)
TOTAL
139.58k
322.39k (x2.31)
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
i5-6400
i7-8700
Test#1 (Integers)
21.1k
29.25k (x1.39)
Test#2 (FP)
18.28k
25.98k (x1.42)
Test#3 (Generic, ZIP)
4.22k
6.05k (x1.43)
Test#1 (Memory)
4.45k
13.74k (x3.09)
TOTAL
48.05k
75.01k (x1.56)
Multithread
i5-6400
i7-8700
Test#1 (Integers)
80.03k
182.56k (x2.28)
Test#2 (FP)
71.1k
159.9k (x2.25)
Test#3 (Generic, ZIP)
16.19k
38.18k (x2.36)
Test#1 (Memory)
6.73k
8.31k (x1.23)
TOTAL
174.05k
388.95k (x2.23)
Performance/W
i5-6400
i7-8700
Test#1 (Integers)
1231 points/W
2809 points/W
Test#2 (FP)
1094 points/W
2460 points/W
Test#3 (Generic, ZIP)
249 points/W
587 points/W
Test#1 (Memory)
104 points/W
128 points/W
TOTAL
2678 points/W
5984 points/W
Performance/GHz
i5-6400
i7-8700
Test#1 (Integers)
6394 points/GHz
6358 points/GHz
Test#2 (FP)
5539 points/GHz
5647 points/GHz
Test#3 (Generic, ZIP)
1279 points/GHz
1316 points/GHz
Test#1 (Memory)
1348 points/GHz
2986 points/GHz
TOTAL
14560 points/GHz
16307 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