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Core i7-6820HQ vs i7-3770K


Description
The i7-6820HQ is based on Skylake architecture while the i7-3770K is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-6820HQ gets a score of 159.7 k points while the i7-3770K gets 139.6 k points.

Summarizing, the i7-6820HQ is 1.1 times faster than the i7-3770K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
306a9
Core
Skylake-H
Ivy Bridge
Architecture
Base frecuency
2.7 GHz
3.5 GHz
Boost frecuency
3.6 GHz
3.9 GHz
Socket
BGA1440
LGA 1155
Cores/Threads
4/8
4/8
TDP
45 W
77 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
April 2012

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
i7-3770K
Test#1 (Integers)
3180
3860 (21.38%)
Test#2 (FP)
13020
10793 (-17.10%)
Test#3 (Generic, ZIP)
4169
4900 (17.54%)
Test#1 (Memory)
6931
5507 (-20.54%)
TOTAL
27299
25061 (-8.20%)

Multithread

i7-6820HQ

i7-3770K
Test#1 (Integers)
13259
17168 (29.48%)
Test#2 (FP)
62228
46248 (-25.68%)
Test#3 (Generic, ZIP)
20342
23669 (16.35%)
Test#1 (Memory)
5464
10359 (89.60%)
TOTAL
101292
97443 (-3.80%)

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
i7-3770K
Test#1 (Integers)
11784
12886 (9.35%)
Test#2 (FP)
18056
12374 (-31.47%)
Test#3 (Generic, ZIP)
4479
5010 (11.85%)
Test#1 (Memory)
7117
5521 (-22.43%)
TOTAL
41437
35791 (-13.62%)

Multithread

i7-6820HQ

i7-3770K
Test#1 (Integers)
49458
51309 (3.74%)
Test#2 (FP)
84798
57921 (-31.70%)
Test#3 (Generic, ZIP)
20703
23646 (14.21%)
Test#1 (Memory)
4770
6685 (40.14%)
TOTAL
159730
139560 (-12.63%)

Performance/W
i7-6820HQ
i7-3770K
Test#1 (Integers)
1099 points/W
666 points/W
Test#2 (FP)
1884 points/W
752 points/W
Test#3 (Generic, ZIP)
460 points/W
307 points/W
Test#1 (Memory)
106 points/W
87 points/W
TOTAL
3550 points/W
1812 points/W

Performance/GHz
i7-6820HQ
i7-3770K
Test#1 (Integers)
3273 points/GHz
3304 points/GHz
Test#2 (FP)
5016 points/GHz
3173 points/GHz
Test#3 (Generic, ZIP)
1244 points/GHz
1285 points/GHz
Test#1 (Memory)
1977 points/GHz
1416 points/GHz
TOTAL
11510 points/GHz
9177 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