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Core E5-2620 v3 vs i7-7700K


Description
The E5-2620 v3 is based on Haswell architecture while the i7-7700K is based on Kaby Lake.

Using the multithread performance as a reference, the E5-2620 v3 gets a score of 358 k points while the i7-7700K gets 289.8 k points.

Summarizing, the E5-2620 v3 is 1.2 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306f2
906e9
Core
Haswell-EP
Kaby Lake-S
Architecture
Base frecuency
2.4 GHz
4.2 GHz
Boost frecuency
3.2 GHz
4.5 GHz
Socket
LGA 2011-3
LGA 1151
Cores/Threads
6/12
4/8
TDP
85 W
95 W
Cache L1 (d+i)
6x32+6x32 kB
32+32 kB
Cache L2
6x256 kB
256 kB
Cache L3
15360 kB
8192 kB
Date
September 2014
September 2016
Mean monothread perf.
35.86k points
76.9k points
Mean multithread perf.
357.99k points
289.82k 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
i7-7700K
Test#1 (Integers)
18.64k
30.44k (x1.63)
Test#2 (FP)
10.55k
26.91k (x2.55)
Test#3 (Generic, ZIP)
4.12k
6.25k (x1.51)
Test#1 (Memory)
2.54k
13.3k (x5.24)
TOTAL
35.86k
76.9k (x2.14)

Multithread

E5-2620 v3

i7-7700K
Test#1 (Integers)
181.66k
127.73k (x0.7)
Test#2 (FP)
122.09k
123.68k (x1.01)
Test#3 (Generic, ZIP)
47.02k
29.34k (x0.62)
Test#1 (Memory)
7.22k
9.08k (x1.26)
TOTAL
357.99k
289.82k (x0.81)

Performance/W
E5-2620 v3
i7-7700K
Test#1 (Integers)
2137 points/W
1345 points/W
Test#2 (FP)
1436 points/W
1302 points/W
Test#3 (Generic, ZIP)
553 points/W
309 points/W
Test#1 (Memory)
85 points/W
96 points/W
TOTAL
4212 points/W
3051 points/W

Performance/GHz
E5-2620 v3
i7-7700K
Test#1 (Integers)
5826 points/GHz
6765 points/GHz
Test#2 (FP)
3297 points/GHz
5981 points/GHz
Test#3 (Generic, ZIP)
1288 points/GHz
1388 points/GHz
Test#1 (Memory)
794 points/GHz
2955 points/GHz
TOTAL
11205 points/GHz
17089 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