| | | |

Core i7-6820HQ vs i3-3120M


Description
The i7-6820HQ is based on Skylake architecture while the i3-3120M 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 i3-3120M gets 49.3 k points.

Summarizing, the i7-6820HQ is 3.2 times faster than the i3-3120M . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
306a9
Core
Skylake-H
Architecture
Base frecuency
2.7 GHz
2.5 GHz
Boost frecuency
3.6 GHz
2.5 GHz
Socket
BGA1440
BGA1023
Cores/Threads
4/8
2 /2
TDP
45 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
3072 kB
Date
October 2015
September 2012

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
i3-3120M
Test#1 (Integers)
11784
7730 (-34.40%)
Test#2 (FP)
18056
8036 (-55.50%)
Test#3 (Generic, ZIP)
4479
3209 (-28.37%)
Test#1 (Memory)
7117
3272 (-54.02%)
TOTAL
41437
22246 (-46.31%)

Multithread

i7-6820HQ

i3-3120M
Test#1 (Integers)
49458
17209 (-65.21%)
Test#2 (FP)
84798
19542 (-76.95%)
Test#3 (Generic, ZIP)
20703
7828 (-62.19%)
Test#1 (Memory)
4770
4681 (-1.87%)
TOTAL
159730
49259 (-69.16%)

Performance/W
i7-6820HQ
i3-3120M
Test#1 (Integers)
1099 points/W
492 points/W
Test#2 (FP)
1884 points/W
558 points/W
Test#3 (Generic, ZIP)
460 points/W
224 points/W
Test#1 (Memory)
106 points/W
134 points/W
TOTAL
3550 points/W
1407 points/W

Performance/GHz
i7-6820HQ
i3-3120M
Test#1 (Integers)
3273 points/GHz
3092 points/GHz
Test#2 (FP)
5016 points/GHz
3214 points/GHz
Test#3 (Generic, ZIP)
1244 points/GHz
1283 points/GHz
Test#1 (Memory)
1977 points/GHz
1309 points/GHz
TOTAL
11510 points/GHz
8898 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