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Xeon E5-2620 v4 vs A6 7400K


Description
The E5-2620 v4 is based on Broadwell architecture while the 7400K is based on Steamroller.

Using the multithread performance as a reference, the E5-2620 v4 gets a score of 147.8 k points while the 7400K gets 34.3 k points.

Summarizing, the E5-2620 v4 is 4.3 times faster than the 7400K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406f1
630f01
Core
Broadwell-EP
Kaveri
Architecture
Base frecuency
2.1 GHz
3.5 GHz
Boost frecuency
3 GHz
3.9 GHz
Socket
Socket 2011-3
Socket FM2+
Cores/Threads
8/16
2/2
TDP
85 W
65 W
Cache L1 (d+i)
8x32+8x32 kB
2x16+64 kB
Cache L2
8x256 kB
1024 kB
Cache L3
20480 kB
0 kB
Date
March 2016
July 2014
Mean monothread perf.
29.39k points
24.01k points
Mean multithread perf.
237.83k points
34.28k points

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
E5-2620 v4
7400K
Test#1 (Integers)
6.04k
8.78k (x1.45)
Test#2 (FP)
10.18k
9.45k (x0.93)
Test#3 (Generic, ZIP)
2.74k
3.39k (x1.23)
Test#1 (Memory)
2.41k
2.39k (x0.99)
TOTAL
21.37k
24.01k (x1.12)

Multithread

E5-2620 v4

7400K
Test#1 (Integers)
47.51k
13.5k (x0.28)
Test#2 (FP)
75.12k
12.17k (x0.16)
Test#3 (Generic, ZIP)
19.72k
5.96k (x0.3)
Test#1 (Memory)
5.45k
2.65k (x0.49)
TOTAL
147.8k
34.28k (x0.23)

Performance/W
E5-2620 v4
7400K
Test#1 (Integers)
559 points/W
208 points/W
Test#2 (FP)
884 points/W
187 points/W
Test#3 (Generic, ZIP)
232 points/W
92 points/W
Test#1 (Memory)
64 points/W
41 points/W
TOTAL
1739 points/W
527 points/W

Performance/GHz
E5-2620 v4
7400K
Test#1 (Integers)
2013 points/GHz
2252 points/GHz
Test#2 (FP)
3393 points/GHz
2423 points/GHz
Test#3 (Generic, ZIP)
915 points/GHz
869 points/GHz
Test#1 (Memory)
802 points/GHz
612 points/GHz
TOTAL
7123 points/GHz
6156 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