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Xeon E5-2670 v3 vs Core i7-6820HQ


Description
The E5-2670 v3 is based on Haswell architecture while the i7-6820HQ is based on Skylake.

Using the multithread performance as a reference, the E5-2670 v3 gets a score of 452.9 k points while the i7-6820HQ gets 205.9 k points.

Summarizing, the E5-2670 v3 is 2.2 times faster than the i7-6820HQ. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306f2
506e3
Core
Haswell-EP
Skylake-H
Architecture
Base frecuency
2.3 GHz
2.7 GHz
Boost frecuency
3.1 GHz
3.6 GHz
Socket
LGA 2011-3
BGA1440
Cores/Threads
12/24
4/8
TDP
120 W
45 W
Cache L1 (d+i)
12x32+12x32 kB
4x32+4x32 kB
Cache L2
12x256 kB
4x256 kB
Cache L3
30720 kB
8192 kB
Date
September 2014
October 2015
Mean monothread perf.
36.41k points
50.1k points
Mean multithread perf.
452.9k points
205.89k 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
E5-2670 v3
i7-6820HQ
Test#1 (Integers)
3.52k
3.18k (x0.9)
Test#2 (FP)
8.68k
13.02k (x1.5)
Test#3 (Generic, ZIP)
2.83k
4.17k (x1.47)
Test#1 (Memory)
3.13k
6.93k (x2.21)
TOTAL
18.17k
27.3k (x1.5)

Multithread

E5-2670 v3

i7-6820HQ
Test#1 (Integers)
32.7k
13.26k (x0.41)
Test#2 (FP)
105.18k
62.23k (x0.59)
Test#3 (Generic, ZIP)
35.18k
20.34k (x0.58)
Test#1 (Memory)
9.54k
5.46k (x0.57)
TOTAL
182.59k
101.29k (x0.55)

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
E5-2670 v3
i7-6820HQ
Test#1 (Integers)
11.08k
11.54k (x1.04)
Test#2 (FP)
9.57k
16.69k (x1.74)
Test#3 (Generic, ZIP)
3.18k
4.51k (x1.42)
Test#1 (Memory)
3.28k
7.27k (x2.22)
TOTAL
27.11k
40.01k (x1.48)

Multithread

E5-2670 v3

i7-6820HQ
Test#1 (Integers)
139.07k
48.5k (x0.35)
Test#2 (FP)
133.47k
77.02k (x0.58)
Test#3 (Generic, ZIP)
46.6k
21.3k (x0.46)
Test#1 (Memory)
6.65k
5.24k (x0.79)
TOTAL
325.78k
152.06k (x0.47)

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
E5-2670 v3
i7-6820HQ
Test#1 (Integers)
11.18k
11.78k (x1.05)
Test#2 (FP)
10.06k
18.06k (x1.79)
Test#3 (Generic, ZIP)
3.21k
4.48k (x1.4)
Test#1 (Memory)
3.12k
7.12k (x2.28)
TOTAL
27.57k
41.44k (x1.5)

Multithread

E5-2670 v3

i7-6820HQ
Test#1 (Integers)
140.98k
49.46k (x0.35)
Test#2 (FP)
145.37k
84.8k (x0.58)
Test#3 (Generic, ZIP)
45.62k
20.7k (x0.45)
Test#1 (Memory)
6.75k
4.77k (x0.71)
TOTAL
338.73k
159.73k (x0.47)

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
E5-2670 v3
i7-6820HQ
Test#1 (Integers)
18.62k
20.99k (x1.13)
Test#2 (FP)
10.49k
18.63k (x1.77)
Test#3 (Generic, ZIP)
4.04k
4.33k (x1.07)
Test#1 (Memory)
3.26k
6.15k (x1.89)
TOTAL
36.41k
50.1k (x1.38)

Multithread

E5-2670 v3

i7-6820HQ
Test#1 (Integers)
236.25k
91.8k (x0.39)
Test#2 (FP)
151.05k
87.24k (x0.58)
Test#3 (Generic, ZIP)
58.9k
20.55k (x0.35)
Test#1 (Memory)
6.7k
6.3k (x0.94)
TOTAL
452.9k
205.89k (x0.45)

Performance/W
E5-2670 v3
i7-6820HQ
Test#1 (Integers)
1969 points/W
2040 points/W
Test#2 (FP)
1259 points/W
1939 points/W
Test#3 (Generic, ZIP)
491 points/W
457 points/W
Test#1 (Memory)
56 points/W
140 points/W
TOTAL
3774 points/W
4575 points/W

Performance/GHz
E5-2670 v3
i7-6820HQ
Test#1 (Integers)
6006 points/GHz
5831 points/GHz
Test#2 (FP)
3385 points/GHz
5174 points/GHz
Test#3 (Generic, ZIP)
1303 points/GHz
1204 points/GHz
Test#1 (Memory)
1052 points/GHz
1708 points/GHz
TOTAL
11745 points/GHz
13917 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