Core i7-5820K vs i5-6400
Description
The i7-5820K is based on Haswell architecture while the i5-6400 is based on Skylake.
Using the multithread performance as a reference, the i7-5820K gets a score of 129.1 k points while the i5-6400 gets 139.6 k points.
Summarizing, the i5-6400 is 1.1 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-5820K gets a score of 129.1 k points while the i5-6400 gets 139.6 k points.
Summarizing, the i5-6400 is 1.1 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
306f2
506e3
Core
Haswell-E
Skylake-S
Base frecuency
3.3 GHz
2.7 GHz
Boost frecuency
3.6 GHz
3.3 GHz
Socket
LGA 1150
LGA 1151
Cores/Threads
6/12
4/4
TDP
140 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
4x32+4x32 kB
Cache L2
6x256 kB
4x256 kB
Cache L3
15360 kB
6144 kB
Date
September 2014
September 2015
Mean monothread perf.
31.53k points
48.05k points
Mean multithread perf.
129.06k points
174.05k 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
i7-5820K
i5-6400
Test#1 (Integers)
3.82k
3.2k (x0.84)
Test#2 (FP)
9.64k
12.81k (x1.33)
Test#3 (Generic, ZIP)
4.29k
4.18k (x0.98)
Test#1 (Memory)
3.78k
4.3k (x1.14)
TOTAL
21.53k
24.49k (x1.14)
Multithread
i7-5820K
i5-6400
Test#1 (Integers)
18.07k
11.45k (x0.63)
Test#2 (FP)
64.25k
46.67k (x0.73)
Test#3 (Generic, ZIP)
27.03k
14.69k (x0.54)
Test#1 (Memory)
8.03k
5.92k (x0.74)
TOTAL
117.38k
78.73k (x0.67)
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
i7-5820K
i5-6400
Test#1 (Integers)
12.03k
11.82k (x0.98)
Test#2 (FP)
11.23k
18.36k (x1.63)
Test#3 (Generic, ZIP)
4.55k
4.43k (x0.97)
Test#1 (Memory)
3.72k
4.95k (x1.33)
TOTAL
31.53k
39.56k (x1.25)
Multithread
i7-5820K
i5-6400
Test#1 (Integers)
49.48k
46.04k (x0.93)
Test#2 (FP)
52.21k
69.47k (x1.33)
Test#3 (Generic, ZIP)
19.7k
16.33k (x0.83)
Test#1 (Memory)
7.67k
7.74k (x1.01)
TOTAL
129.06k
139.58k (x1.08)
Performance/W
i7-5820K
i5-6400
Test#1 (Integers)
353 points/W
708 points/W
Test#2 (FP)
373 points/W
1069 points/W
Test#3 (Generic, ZIP)
141 points/W
251 points/W
Test#1 (Memory)
55 points/W
119 points/W
TOTAL
922 points/W
2147 points/W
Performance/GHz
i7-5820K
i5-6400
Test#1 (Integers)
3343 points/GHz
3583 points/GHz
Test#2 (FP)
3119 points/GHz
5563 points/GHz
Test#3 (Generic, ZIP)
1264 points/GHz
1341 points/GHz
Test#1 (Memory)
1033 points/GHz
1500 points/GHz
TOTAL
8759 points/GHz
11987 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