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Core i7-7700K vs E5-2620 v3


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

Using the multithread performance as a reference, the i7-7700K gets a score of 289.9 k points while the E5-2620 v3 gets 358 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
906e9
306f2
Core
Kaby Lake-S
Haswell-EP
Architecture
Base frecuency
4.2 GHz
2.4 GHz
Boost frecuency
4.5 GHz
3.2 GHz
Socket
LGA 1151
LGA 2011-3
Cores/Threads
4/8
6/12
TDP
95 W
85 W
Cache L1 (d+i)
32+32 kB
6x32+6x32 kB
Cache L2
256 kB
6x256 kB
Cache L3
8192 kB
15360 kB
Date
September 2016
September 2014
Mean monothread perf.
76.98k points
35.86k points
Mean multithread perf.
289.9k points
357.99k 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
i7-7700K
E5-2620 v3
Test#1 (Integers)
30.47k
18.64k (x0.61)
Test#2 (FP)
26.94k
10.55k (x0.39)
Test#3 (Generic, ZIP)
6.25k
4.12k (x0.66)
Test#1 (Memory)
13.32k
2.54k (x0.19)
TOTAL
76.98k
35.86k (x0.47)

Multithread

i7-7700K

E5-2620 v3
Test#1 (Integers)
127.81k
181.66k (x1.42)
Test#2 (FP)
123.7k
122.09k (x0.99)
Test#3 (Generic, ZIP)
29.34k
47.02k (x1.6)
Test#1 (Memory)
9.05k
7.22k (x0.8)
TOTAL
289.9k
357.99k (x1.23)

Performance/W
i7-7700K
E5-2620 v3
Test#1 (Integers)
1345 points/W
2137 points/W
Test#2 (FP)
1302 points/W
1436 points/W
Test#3 (Generic, ZIP)
309 points/W
553 points/W
Test#1 (Memory)
95 points/W
85 points/W
TOTAL
3052 points/W
4212 points/W

Performance/GHz
i7-7700K
E5-2620 v3
Test#1 (Integers)
6770 points/GHz
5826 points/GHz
Test#2 (FP)
5987 points/GHz
3297 points/GHz
Test#3 (Generic, ZIP)
1389 points/GHz
1288 points/GHz
Test#1 (Memory)
2960 points/GHz
794 points/GHz
TOTAL
17106 points/GHz
11205 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