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Core i7-6820HQ vs Xeon E5-2620


Description
The i7-6820HQ is based on Skylake architecture while the E5-2620 is based on Sandy Bridge.

Using the multithread performance as a reference, the i7-6820HQ gets a score of 159.7 k points while the E5-2620 gets 224.7 k points.

Summarizing, the E5-2620 is 1.4 times faster than the i7-6820HQ. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
206d7
Core
Skylake-H
Sandy Bridge-EP
Architecture
Base frecuency
2.7 GHz
2 GHz
Boost frecuency
3.6 GHz
2.5 GHz
Socket
BGA1440
LGA 2011
Cores/Threads
4/8
6/12
TDP
45 W
95 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
8192 kB
15360 kB
Date
October 2015
March 2012
Mean monothread perf.
50.1k points
18.8k points
Mean multithread perf.
205.89k points
224.7k 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
i7-6820HQ
E5-2620
Test#1 (Integers)
11.78k
6.95k (x0.59)
Test#2 (FP)
18.06k
6.24k (x0.35)
Test#3 (Generic, ZIP)
4.48k
3.05k (x0.68)
Test#1 (Memory)
7.12k
2.56k (x0.36)
TOTAL
41.44k
18.8k (x0.45)

Multithread

i7-6820HQ

E5-2620
Test#1 (Integers)
49.46k
90.01k (x1.82)
Test#2 (FP)
84.8k
82.43k (x0.97)
Test#3 (Generic, ZIP)
20.7k
42.59k (x2.06)
Test#1 (Memory)
4.77k
9.66k (x2.02)
TOTAL
159.73k
224.7k (x1.41)

Performance/W
i7-6820HQ
E5-2620
Test#1 (Integers)
1099 points/W
948 points/W
Test#2 (FP)
1884 points/W
868 points/W
Test#3 (Generic, ZIP)
460 points/W
448 points/W
Test#1 (Memory)
106 points/W
102 points/W
TOTAL
3550 points/W
2365 points/W

Performance/GHz
i7-6820HQ
E5-2620
Test#1 (Integers)
3273 points/GHz
2780 points/GHz
Test#2 (FP)
5016 points/GHz
2494 points/GHz
Test#3 (Generic, ZIP)
1244 points/GHz
1220 points/GHz
Test#1 (Memory)
1977 points/GHz
1024 points/GHz
TOTAL
11510 points/GHz
7519 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