Core i7-6700K vs Xeon E5-2620 v4
Description
The i7-6700K is based on Skylake architecture while the E5-2620 v4 is based on Broadwell.
Using the multithread performance as a reference, the i7-6700K gets a score of 254.6 k points while the E5-2620 v4 gets 237.8 k points.
Summarizing, the i7-6700K is 1.1 times faster than the E5-2620 v4. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-6700K gets a score of 254.6 k points while the E5-2620 v4 gets 237.8 k points.
Summarizing, the i7-6700K is 1.1 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
506e3
406f1
Core
Skylake-S
Broadwell-EP
Base frecuency
4 GHz
2.1 GHz
Boost frecuency
4.2 GHz
3 GHz
Socket
LGA 1151
Socket 2011-3
Cores/Threads
4/8
8/16
TDP
95 W
85 W
Cache L1 (d+i)
4x32+4x32 kB
8x32+8x32 kB
Cache L2
256 kB
8x256 kB
Cache L3
8192 kB
20480 kB
Date
May 2015
March 2016
Mean monothread perf.
63.22k points
29.39k points
Mean multithread perf.
254.56k points
237.83k 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
i7-6700K
E5-2620 v4
Test#1 (Integers)
4.07k
2.6k (x0.64)
Test#2 (FP)
16.62k
7.55k (x0.45)
Test#3 (Generic, ZIP)
5.23k
2.61k (x0.5)
Test#1 (Memory)
6.28k
2.03k (x0.32)
TOTAL
32.2k
14.79k (x0.46)
Multithread
i7-6700K
E5-2620 v4
Test#1 (Integers)
16.37k
17.41k (x1.06)
Test#2 (FP)
77.34k
75.46k (x0.98)
Test#3 (Generic, ZIP)
25.65k
26.25k (x1.02)
Test#1 (Memory)
10.21k
4.65k (x0.46)
TOTAL
129.57k
123.78k (x0.96)
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
i7-6700K
E5-2620 v4
Test#1 (Integers)
14.73k
8.22k (x0.56)
Test#2 (FP)
21.27k
12.06k (x0.57)
Test#3 (Generic, ZIP)
5.52k
4.01k (x0.73)
Test#1 (Memory)
6.32k
2.89k (x0.46)
TOTAL
47.84k
27.18k (x0.57)
Multithread
i7-6700K
E5-2620 v4
Test#1 (Integers)
61.09k
61.34k (x1)
Test#2 (FP)
99.17k
90.21k (x0.91)
Test#3 (Generic, ZIP)
26.57k
26.2k (x0.99)
Test#1 (Memory)
10.26k
4.62k (x0.45)
TOTAL
197.09k
182.37k (x0.93)
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
i7-6700K
E5-2620 v4
Test#1 (Integers)
25.78k
12.16k (x0.47)
Test#2 (FP)
23.08k
11.82k (x0.51)
Test#3 (Generic, ZIP)
5.32k
3.02k (x0.57)
Test#1 (Memory)
9.03k
2.4k (x0.27)
TOTAL
63.22k
29.39k (x0.46)
Multithread
i7-6700K
E5-2620 v4
Test#1 (Integers)
112.83k
103.77k (x0.92)
Test#2 (FP)
106.86k
102.28k (x0.96)
Test#3 (Generic, ZIP)
25.76k
26.13k (x1.01)
Test#1 (Memory)
9.12k
5.65k (x0.62)
TOTAL
254.56k
237.83k (x0.93)
Performance/W
i7-6700K
E5-2620 v4
Test#1 (Integers)
1188 points/W
1221 points/W
Test#2 (FP)
1125 points/W
1203 points/W
Test#3 (Generic, ZIP)
271 points/W
307 points/W
Test#1 (Memory)
96 points/W
66 points/W
TOTAL
2680 points/W
2798 points/W
Performance/GHz
i7-6700K
E5-2620 v4
Test#1 (Integers)
6139 points/GHz
4054 points/GHz
Test#2 (FP)
5495 points/GHz
3939 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
1005 points/GHz
Test#1 (Memory)
2150 points/GHz
799 points/GHz
TOTAL
15052 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4