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Core i7-6820HQ vs i7-2600


Description
The i7-6820HQ is based on Skylake architecture while the i7-2600 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 i7-2600 gets 93.7 k points.

Summarizing, the i7-6820HQ is 1.7 times faster than the i7-2600 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
206a7
Core
Skylake-H
Sandy Bridge
Architecture
Base frecuency
2.7 GHz
3.4 GHz
Boost frecuency
3.6 GHz
3.8 GHz
Socket
BGA1440
LGA 1155
Cores/Threads
4/8
4/8
TDP
45 W
95 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
8192 kB
8192 kB
Date
October 2015
June 2011
Mean monothread perf.
50.1k points
28.68k points
Mean multithread perf.
205.89k points
93.69k 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
i7-2600
Test#1 (Integers)
11.78k
10.03k (x0.85)
Test#2 (FP)
18.06k
8.91k (x0.49)
Test#3 (Generic, ZIP)
4.48k
4.34k (x0.97)
Test#1 (Memory)
7.12k
5.41k (x0.76)
TOTAL
41.44k
28.68k (x0.69)

Multithread

i7-6820HQ

i7-2600
Test#1 (Integers)
49.46k
37.69k (x0.76)
Test#2 (FP)
84.8k
34.22k (x0.4)
Test#3 (Generic, ZIP)
20.7k
17.65k (x0.85)
Test#1 (Memory)
4.77k
4.13k (x0.87)
TOTAL
159.73k
93.69k (x0.59)

Performance/W
i7-6820HQ
i7-2600
Test#1 (Integers)
1099 points/W
397 points/W
Test#2 (FP)
1884 points/W
360 points/W
Test#3 (Generic, ZIP)
460 points/W
186 points/W
Test#1 (Memory)
106 points/W
43 points/W
TOTAL
3550 points/W
986 points/W

Performance/GHz
i7-6820HQ
i7-2600
Test#1 (Integers)
3273 points/GHz
2639 points/GHz
Test#2 (FP)
5016 points/GHz
2343 points/GHz
Test#3 (Generic, ZIP)
1244 points/GHz
1141 points/GHz
Test#1 (Memory)
1977 points/GHz
1425 points/GHz
TOTAL
11510 points/GHz
7549 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