| | | | | | |

Core E5-2620 v3 vs i5-6400


Description
The E5-2620 v3 is based on Haswell architecture while the i5-6400 is based on Skylake.

Using the multithread performance as a reference, the E5-2620 v3 gets a score of 358 k points while the i5-6400 gets 174.1 k points.

Summarizing, the E5-2620 v3 is 2.1 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306f2
506e3
Core
Haswell-EP
Skylake-S
Architecture
Base frecuency
2.4 GHz
2.7 GHz
Boost frecuency
3.2 GHz
3.3 GHz
Socket
LGA 2011-3
LGA 1151
Cores/Threads
6/12
4/4
TDP
85 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.
35.86k points
48.05k points
Mean multithread perf.
357.99k points
174.05k points

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
E5-2620 v3
i5-6400
Test#1 (Integers)
18.64k
21.1k (x1.13)
Test#2 (FP)
10.55k
18.28k (x1.73)
Test#3 (Generic, ZIP)
4.12k
4.22k (x1.02)
Test#1 (Memory)
2.54k
4.45k (x1.75)
TOTAL
35.86k
48.05k (x1.34)

Multithread

E5-2620 v3

i5-6400
Test#1 (Integers)
181.66k
80.03k (x0.44)
Test#2 (FP)
122.09k
71.1k (x0.58)
Test#3 (Generic, ZIP)
47.02k
16.19k (x0.34)
Test#1 (Memory)
7.22k
6.73k (x0.93)
TOTAL
357.99k
174.05k (x0.49)

Performance/W
E5-2620 v3
i5-6400
Test#1 (Integers)
2137 points/W
1231 points/W
Test#2 (FP)
1436 points/W
1094 points/W
Test#3 (Generic, ZIP)
553 points/W
249 points/W
Test#1 (Memory)
85 points/W
104 points/W
TOTAL
4212 points/W
2678 points/W

Performance/GHz
E5-2620 v3
i5-6400
Test#1 (Integers)
5826 points/GHz
6394 points/GHz
Test#2 (FP)
3297 points/GHz
5539 points/GHz
Test#3 (Generic, ZIP)
1288 points/GHz
1279 points/GHz
Test#1 (Memory)
794 points/GHz
1348 points/GHz
TOTAL
11205 points/GHz
14560 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