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Core E5-2620 v3 vs i7-8665U


Description
The E5-2620 v3 is based on Haswell architecture while the i7-8665U is based on Whiskey Lake.

Using the multithread performance as a reference, the E5-2620 v3 gets a score of 358 k points while the i7-8665U gets 129.1 k points.

Summarizing, the E5-2620 v3 is 2.8 times faster than the i7-8665U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306f2
806ec
Core
Haswell-EP
Whiskey Lake-U
Architecture
Base frecuency
2.4 GHz
1.9 GHz
Boost frecuency
3.2 GHz
4.8 GHz
Socket
LGA 2011-3
BGA 1528
Cores/Threads
6/12
4/8
TDP
85 W
15 W
Cache L1 (d+i)
6x32+6x32 kB
4x32+4x32 kB
Cache L2
6x256 kB
4x256 kB
Cache L3
15360 kB
8192 kB
Date
September 2014
April 2019
Mean monothread perf.
35.86k points
45k points
Mean multithread perf.
357.99k points
129.06k 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
i7-8665U
Test#1 (Integers)
18.64k
18.4k (x0.99)
Test#2 (FP)
10.55k
16.78k (x1.59)
Test#3 (Generic, ZIP)
4.12k
3.61k (x0.88)
Test#1 (Memory)
2.54k
6.21k (x2.44)
TOTAL
35.86k
45k (x1.25)

Multithread

E5-2620 v3

i7-8665U
Test#1 (Integers)
181.66k
57.09k (x0.31)
Test#2 (FP)
122.09k
54.43k (x0.45)
Test#3 (Generic, ZIP)
47.02k
12.23k (x0.26)
Test#1 (Memory)
7.22k
5.31k (x0.74)
TOTAL
357.99k
129.06k (x0.36)

Performance/W
E5-2620 v3
i7-8665U
Test#1 (Integers)
2137 points/W
3806 points/W
Test#2 (FP)
1436 points/W
3629 points/W
Test#3 (Generic, ZIP)
553 points/W
816 points/W
Test#1 (Memory)
85 points/W
354 points/W
TOTAL
4212 points/W
8604 points/W

Performance/GHz
E5-2620 v3
i7-8665U
Test#1 (Integers)
5826 points/GHz
3833 points/GHz
Test#2 (FP)
3297 points/GHz
3496 points/GHz
Test#3 (Generic, ZIP)
1288 points/GHz
752 points/GHz
Test#1 (Memory)
794 points/GHz
1293 points/GHz
TOTAL
11205 points/GHz
9374 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