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Core i7-6820HQ vs i7-4600U


Description
The i7-6820HQ is based on Skylake architecture while the i7-4600U is based on Haswell.

Using the multithread performance as a reference, the i7-6820HQ gets a score of 206.3 k points while the i7-4600U gets 64.5 k points.

Summarizing, the i7-6820HQ is 3.2 times faster than the i7-4600U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
40651
Core
Skylake-H
Haswell
Architecture
Base frecuency
2.7 GHz
2.1 GHz
Boost frecuency
3.6 GHz
3.3 GHz
Socket
BGA1440
BGA1168
Cores/Threads
4/8
2/4
TDP
45 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
4096 kB
Date
October 2015
September 2013

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
i7-6820HQ
i7-4600U
Test#1 (Integers)
21147
14365 (-32.07%)
Test#2 (FP)
18663
8307 (-55.49%)
Test#3 (Generic, ZIP)
4359
3348 (-23.20%)
Test#1 (Memory)
6240
2956 (-52.63%)
TOTAL
50409
28976 (-42.52%)

Multithread

i7-6820HQ

i7-4600U
Test#1 (Integers)
91901
31322 (-65.92%)
Test#2 (FP)
87330
20173 (-76.90%)
Test#3 (Generic, ZIP)
20715
8020 (-61.28%)
Test#1 (Memory)
6325
5033 (-20.43%)
TOTAL
206271
64549 (-68.71%)

Performance/W
i7-6820HQ
i7-4600U
Test#1 (Integers)
2042 points/W
2088 points/W
Test#2 (FP)
1941 points/W
1345 points/W
Test#3 (Generic, ZIP)
460 points/W
535 points/W
Test#1 (Memory)
141 points/W
336 points/W
TOTAL
4584 points/W
4303 points/W

Performance/GHz
i7-6820HQ
i7-4600U
Test#1 (Integers)
5874 points/GHz
4353 points/GHz
Test#2 (FP)
5184 points/GHz
2517 points/GHz
Test#3 (Generic, ZIP)
1211 points/GHz
1015 points/GHz
Test#1 (Memory)
1733 points/GHz
896 points/GHz
TOTAL
14002 points/GHz
8781 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. 3.7.8