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Xeon E5-2620 v4 vs Core i7-7700K


Description
The E5-2620 v4 is based on Broadwell architecture while the i7-7700K is based on Kaby Lake.

Using the multithread performance as a reference, the E5-2620 v4 gets a score of 237.8 k points while the i7-7700K gets 289.8 k points.

Summarizing, the i7-7700K is 1.2 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
406f1
906e9
Core
Broadwell-EP
Kaby Lake-S
Architecture
Base frecuency
2.1 GHz
4.2 GHz
Boost frecuency
3 GHz
4.5 GHz
Socket
Socket 2011-3
LGA 1151
Cores/Threads
8/16
4/8
TDP
85 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
32+32 kB
Cache L2
8x256 kB
256 kB
Cache L3
20480 kB
8192 kB
Date
March 2016
September 2016
Mean monothread perf.
29.39k points
76.9k points
Mean multithread perf.
237.83k points
289.82k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
E5-2620 v4
i7-7700K
Test#1 (Integers)
2.6k
4.63k (x1.78)
Test#2 (FP)
7.55k
18.92k (x2.51)
Test#3 (Generic, ZIP)
2.61k
6.22k (x2.38)
Test#1 (Memory)
2.03k
13.92k (x6.87)
TOTAL
14.79k
43.7k (x2.95)

Multithread

E5-2620 v4

i7-7700K
Test#1 (Integers)
17.41k
18.53k (x1.06)
Test#2 (FP)
75.46k
86.49k (x1.15)
Test#3 (Generic, ZIP)
26.25k
28.78k (x1.1)
Test#1 (Memory)
4.65k
9.67k (x2.08)
TOTAL
123.78k
143.47k (x1.16)

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
i7-7700K
Test#1 (Integers)
6.04k
17.55k (x2.91)
Test#2 (FP)
10.18k
27.82k (x2.73)
Test#3 (Generic, ZIP)
2.74k
6.8k (x2.48)
Test#1 (Memory)
2.41k
14.83k (x6.17)
TOTAL
21.37k
67k (x3.14)

Multithread

E5-2620 v4

i7-7700K
Test#1 (Integers)
47.51k
68.4k (x1.44)
Test#2 (FP)
75.12k
118.8k (x1.58)
Test#3 (Generic, ZIP)
19.72k
33.34k (x1.69)
Test#1 (Memory)
5.45k
17.43k (x3.2)
TOTAL
147.8k
237.97k (x1.61)

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 v4
i7-7700K
Test#1 (Integers)
12.16k
30.44k (x2.5)
Test#2 (FP)
11.82k
26.91k (x2.28)
Test#3 (Generic, ZIP)
3.02k
6.25k (x2.07)
Test#1 (Memory)
2.4k
13.3k (x5.55)
TOTAL
29.39k
76.9k (x2.62)

Multithread

E5-2620 v4

i7-7700K
Test#1 (Integers)
103.77k
127.73k (x1.23)
Test#2 (FP)
102.28k
123.68k (x1.21)
Test#3 (Generic, ZIP)
26.13k
29.34k (x1.12)
Test#1 (Memory)
5.65k
9.08k (x1.61)
TOTAL
237.83k
289.82k (x1.22)

Performance/W
E5-2620 v4
i7-7700K
Test#1 (Integers)
1221 points/W
1345 points/W
Test#2 (FP)
1203 points/W
1302 points/W
Test#3 (Generic, ZIP)
307 points/W
309 points/W
Test#1 (Memory)
66 points/W
96 points/W
TOTAL
2798 points/W
3051 points/W

Performance/GHz
E5-2620 v4
i7-7700K
Test#1 (Integers)
4054 points/GHz
6765 points/GHz
Test#2 (FP)
3939 points/GHz
5981 points/GHz
Test#3 (Generic, ZIP)
1005 points/GHz
1388 points/GHz
Test#1 (Memory)
799 points/GHz
2955 points/GHz
TOTAL
9798 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