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Xeon E5-2620 v4 vs Core i7-8700k


Description
The E5-2620 v4 is based on Broadwell architecture while the i7-8700k is based on Coffee Lake.

Using the multithread performance as a reference, the E5-2620 v4 gets a score of 237.8 k points while the i7-8700k gets 443.8 k points.

Summarizing, the i7-8700k is 1.9 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
906ea
Core
Broadwell-EP
Coffee Lake-S
Architecture
Base frecuency
2.1 GHz
3.7 GHz
Boost frecuency
3 GHz
4.7 GHz
Socket
Socket 2011-3
LGA 1151
Cores/Threads
8/16
6/12
TDP
85 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
6x32+6x32 kB
Cache L2
8x256 kB
6x256 kB
Cache L3
20480 kB
12288 kB
Date
March 2016
October 2017
Mean monothread perf.
29.39k points
80.6k points
Mean multithread perf.
237.83k points
443.77k 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
i7-8700k
Test#1 (Integers)
2.6k
4.13k (x1.58)
Test#2 (FP)
7.55k
16.96k (x2.25)
Test#3 (Generic, ZIP)
2.61k
5.56k (x2.13)
Test#1 (Memory)
2.03k
12.85k (x6.34)
TOTAL
14.79k
39.5k (x2.67)

Multithread

E5-2620 v4

i7-8700k
Test#1 (Integers)
17.41k
24.01k (x1.38)
Test#2 (FP)
75.46k
108.69k (x1.44)
Test#3 (Generic, ZIP)
26.25k
36.62k (x1.4)
Test#1 (Memory)
4.65k
9.33k (x2.01)
TOTAL
123.78k
178.64k (x1.44)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
E5-2620 v4
i7-8700k
Test#1 (Integers)
8.22k
12.92k (x1.57)
Test#2 (FP)
12.06k
20.68k (x1.71)
Test#3 (Generic, ZIP)
4.01k
5.3k (x1.32)
Test#1 (Memory)
2.89k
12.59k (x4.36)
TOTAL
27.18k
51.48k (x1.89)

Multithread

E5-2620 v4

i7-8700k
Test#1 (Integers)
61.34k
94.26k (x1.54)
Test#2 (FP)
90.21k
152.55k (x1.69)
Test#3 (Generic, ZIP)
26.2k
39.74k (x1.52)
Test#1 (Memory)
4.62k
8.53k (x1.84)
TOTAL
182.37k
295.07k (x1.62)

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
i7-8700k
Test#1 (Integers)
6.04k
16.87k (x2.79)
Test#2 (FP)
10.18k
26.12k (x2.57)
Test#3 (Generic, ZIP)
2.74k
6.33k (x2.31)
Test#1 (Memory)
2.41k
13.71k (x5.7)
TOTAL
21.37k
63.03k (x2.95)

Multithread

E5-2620 v4

i7-8700k
Test#1 (Integers)
47.51k
105.74k (x2.23)
Test#2 (FP)
75.12k
180.52k (x2.4)
Test#3 (Generic, ZIP)
19.72k
44.99k (x2.28)
Test#1 (Memory)
5.45k
8.51k (x1.56)
TOTAL
147.8k
339.77k (x2.3)

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
i7-8700k
Test#1 (Integers)
12.16k
31.2k (x2.57)
Test#2 (FP)
11.82k
27.82k (x2.35)
Test#3 (Generic, ZIP)
3.02k
6.57k (x2.18)
Test#1 (Memory)
2.4k
15k (x6.26)
TOTAL
29.39k
80.6k (x2.74)

Multithread

E5-2620 v4

i7-8700k
Test#1 (Integers)
103.77k
202.42k (x1.95)
Test#2 (FP)
102.28k
186.33k (x1.82)
Test#3 (Generic, ZIP)
26.13k
44.96k (x1.72)
Test#1 (Memory)
5.65k
10.05k (x1.78)
TOTAL
237.83k
443.77k (x1.87)

Performance/W
E5-2620 v4
i7-8700k
Test#1 (Integers)
1221 points/W
2131 points/W
Test#2 (FP)
1203 points/W
1961 points/W
Test#3 (Generic, ZIP)
307 points/W
473 points/W
Test#1 (Memory)
66 points/W
106 points/W
TOTAL
2798 points/W
4671 points/W

Performance/GHz
E5-2620 v4
i7-8700k
Test#1 (Integers)
4054 points/GHz
6639 points/GHz
Test#2 (FP)
3939 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
1005 points/GHz
1397 points/GHz
Test#1 (Memory)
799 points/GHz
3192 points/GHz
TOTAL
9798 points/GHz
17148 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