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Xeon E5-1660 v3 vs E5-2620 v4


Description
The E5-1660 v3 is based on Haswell architecture while the E5-2620 v4 is based on Broadwell.

Using the multithread performance as a reference, the E5-1660 v3 gets a score of 353 k points while the E5-2620 v4 gets 237.8 k points.

Summarizing, the E5-1660 v3 is 1.5 times faster than the E5-2620 v4. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306f2
406f1
Core
Haswell-EP
Broadwell-EP
Architecture
Base frecuency
3 GHz
2.1 GHz
Boost frecuency
3.5 GHz
3 GHz
Socket
LGA 2011-3
Socket 2011-3
Cores/Threads
8/16
8/16
TDP
140 W
85 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x32 kB
Cache L2
8x256 kB
8x256 kB
Cache L3
20480 kB
20480 kB
Date
September 2014
March 2016
Mean monothread perf.
41.31k points
29.39k points
Mean multithread perf.
352.96k points
237.83k 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
E5-1660 v3
E5-2620 v4
Test#1 (Integers)
20.92k
12.16k (x0.58)
Test#2 (FP)
11.87k
11.82k (x1)
Test#3 (Generic, ZIP)
4.67k
3.02k (x0.65)
Test#1 (Memory)
3.85k
2.4k (x0.62)
TOTAL
41.31k
29.39k (x0.71)

Multithread

E5-1660 v3

E5-2620 v4
Test#1 (Integers)
174.59k
103.77k (x0.59)
Test#2 (FP)
116.47k
102.28k (x0.88)
Test#3 (Generic, ZIP)
44.79k
26.13k (x0.58)
Test#1 (Memory)
17.1k
5.65k (x0.33)
TOTAL
352.96k
237.83k (x0.67)

Performance/W
E5-1660 v3
E5-2620 v4
Test#1 (Integers)
1247 points/W
1221 points/W
Test#2 (FP)
832 points/W
1203 points/W
Test#3 (Generic, ZIP)
320 points/W
307 points/W
Test#1 (Memory)
122 points/W
66 points/W
TOTAL
2521 points/W
2798 points/W

Performance/GHz
E5-1660 v3
E5-2620 v4
Test#1 (Integers)
5977 points/GHz
4054 points/GHz
Test#2 (FP)
3391 points/GHz
3939 points/GHz
Test#3 (Generic, ZIP)
1333 points/GHz
1005 points/GHz
Test#1 (Memory)
1101 points/GHz
799 points/GHz
TOTAL
11802 points/GHz
9798 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