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Core i7-4770 vs i7-6820HQ


Description
The i7-4770 is based on Haswell architecture while the i7-6820HQ is based on Skylake.

Using the multithread performance as a reference, the i7-4770 gets a score of 184 k points while the i7-6820HQ gets 205.9 k points.

Summarizing, the i7-6820HQ is 1.1 times faster than the i7-4770 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306c3
506e3
Core
Haswell
Skylake-H
Architecture
Base frecuency
3.4 GHz
2.7 GHz
Boost frecuency
3.9 GHz
3.6 GHz
Socket
LGA 1150
BGA1440
Cores/Threads
4/8
4/8
TDP
84 W
45 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
8192 kB
8192 kB
Date
June 2013
October 2015
Mean monothread perf.
45.19k points
50.1k points
Mean multithread perf.
184k points
205.89k 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
i7-4770
i7-6820HQ
Test#1 (Integers)
13.62k
11.78k (x0.87)
Test#2 (FP)
12.55k
18.06k (x1.44)
Test#3 (Generic, ZIP)
5.17k
4.48k (x0.87)
Test#1 (Memory)
4.67k
7.12k (x1.52)
TOTAL
36k
41.44k (x1.15)

Multithread

i7-4770

i7-6820HQ
Test#1 (Integers)
56.17k
49.46k (x0.88)
Test#2 (FP)
59.54k
84.8k (x1.42)
Test#3 (Generic, ZIP)
23.91k
20.7k (x0.87)
Test#1 (Memory)
8.21k
4.77k (x0.58)
TOTAL
147.82k
159.73k (x1.08)

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
i7-4770
i7-6820HQ
Test#1 (Integers)
23.02k
20.99k (x0.91)
Test#2 (FP)
11.89k
18.63k (x1.57)
Test#3 (Generic, ZIP)
5.29k
4.33k (x0.82)
Test#1 (Memory)
4.98k
6.15k (x1.23)
TOTAL
45.19k
50.1k (x1.11)

Multithread

i7-4770

i7-6820HQ
Test#1 (Integers)
94.23k
91.8k (x0.97)
Test#2 (FP)
59.02k
87.24k (x1.48)
Test#3 (Generic, ZIP)
25.06k
20.55k (x0.82)
Test#1 (Memory)
5.69k
6.3k (x1.11)
TOTAL
184k
205.89k (x1.12)

Performance/W
i7-4770
i7-6820HQ
Test#1 (Integers)
1122 points/W
2040 points/W
Test#2 (FP)
703 points/W
1939 points/W
Test#3 (Generic, ZIP)
298 points/W
457 points/W
Test#1 (Memory)
68 points/W
140 points/W
TOTAL
2191 points/W
4575 points/W

Performance/GHz
i7-4770
i7-6820HQ
Test#1 (Integers)
5902 points/GHz
5831 points/GHz
Test#2 (FP)
3049 points/GHz
5174 points/GHz
Test#3 (Generic, ZIP)
1357 points/GHz
1204 points/GHz
Test#1 (Memory)
1278 points/GHz
1708 points/GHz
TOTAL
11586 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