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Core i7-6820HQ vs i7-4770K


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

Using the multithread performance as a reference, the i7-6820HQ gets a score of 159.7 k points while the i7-4770K gets 146.8 k points.

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

Specs
CPUID
506e3
306c3
Core
Skylake-H
Haswell
Architecture
Base frecuency
2.7 GHz
3.5 GHz
Boost frecuency
3.6 GHz
3.9 GHz
Socket
BGA1440
LGA 1150
Cores/Threads
4/8
4/8
TDP
45 W
84 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
8192 kB
Date
October 2015
Jun 2013

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
i7-6820HQ
i7-4770K
Test#1 (Integers)
3180
4498 (41.45%)
Test#2 (FP)
13020
11227 (-13.77%)
Test#3 (Generic, ZIP)
4169
5160 (23.78%)
Test#1 (Memory)
6931
5282 (-23.80%)
TOTAL
27299
26167 (-4.15%)

Multithread

i7-6820HQ

i7-4770K
Test#1 (Integers)
13259
16268 (22.70%)
Test#2 (FP)
62228
58369 (-6.20%)
Test#3 (Generic, ZIP)
20342
24332 (19.61%)
Test#1 (Memory)
5464
10424 (90.78%)
TOTAL
101292
109392 (8.00%)

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
i7-4770K
Test#1 (Integers)
11784
13783 (16.96%)
Test#2 (FP)
18056
12697 (-29.68%)
Test#3 (Generic, ZIP)
4479
5231 (16.78%)
Test#1 (Memory)
7117
4919 (-30.89%)
TOTAL
41437
36629 (-11.60%)

Multithread

i7-6820HQ

i7-4770K
Test#1 (Integers)
49458
56865 (14.97%)
Test#2 (FP)
84798
60653 (-28.47%)
Test#3 (Generic, ZIP)
20703
24020 (16.02%)
Test#1 (Memory)
4770
5216 (9.34%)
TOTAL
159730
146753 (-8.12%)

Performance/W
i7-6820HQ
i7-4770K
Test#1 (Integers)
1099 points/W
677 points/W
Test#2 (FP)
1884 points/W
722 points/W
Test#3 (Generic, ZIP)
460 points/W
286 points/W
Test#1 (Memory)
106 points/W
62 points/W
TOTAL
3550 points/W
1747 points/W

Performance/GHz
i7-6820HQ
i7-4770K
Test#1 (Integers)
3273 points/GHz
3534 points/GHz
Test#2 (FP)
5016 points/GHz
3256 points/GHz
Test#3 (Generic, ZIP)
1244 points/GHz
1341 points/GHz
Test#1 (Memory)
1977 points/GHz
1261 points/GHz
TOTAL
11510 points/GHz
9392 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