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Core i7-6820HQ vs i5-3320M


Description
The i7-6820HQ is based on Skylake architecture while the i5-3320M 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 i5-3320M gets 58.4 k points.

Summarizing, the i7-6820HQ is 2.7 times faster than the i5-3320M . 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
2.6 GHz
Boost frecuency
3.6 GHz
3.3 GHz
Socket
BGA1440
BGA1023
Cores/Threads
4/8
2/4
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
Jun 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
i5-3320M
Test#1 (Integers)
3180
3234 (1.71%)
Test#2 (FP)
13020
9054 (-30.46%)
Test#3 (Generic, ZIP)
4169
3944 (-5.40%)
Test#1 (Memory)
6931
3833 (-44.69%)
TOTAL
27299
20065 (-26.50%)

Multithread

i7-6820HQ

i5-3320M
Test#1 (Integers)
13259
6036 (-54.47%)
Test#2 (FP)
62228
18869 (-69.68%)
Test#3 (Generic, ZIP)
20342
8695 (-57.26%)
Test#1 (Memory)
5464
3670 (-32.82%)
TOTAL
101292
37271 (-63.20%)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-6820HQ
i5-3320M
Test#1 (Integers)
11536
10916 (-5.38%)
Test#2 (FP)
16687
9994 (-40.11%)
Test#3 (Generic, ZIP)
4514
4071 (-9.82%)
Test#1 (Memory)
7273
3866 (-46.85%)
TOTAL
40011
28846 (-27.91%)

Multithread

i7-6820HQ

i5-3320M
Test#1 (Integers)
48501
20650 (-57.42%)
Test#2 (FP)
77016
20672 (-73.16%)
Test#3 (Generic, ZIP)
21301
9355 (-56.08%)
Test#1 (Memory)
5242
3744 (-28.57%)
TOTAL
152060
54421 (-64.21%)

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
i5-3320M
Test#1 (Integers)
11784
10714 (-9.08%)
Test#2 (FP)
18056
10562 (-41.50%)
Test#3 (Generic, ZIP)
4479
4074 (-9.05%)
Test#1 (Memory)
7117
3903 (-45.17%)
TOTAL
41437
29253 (-29.40%)

Multithread

i7-6820HQ

i5-3320M
Test#1 (Integers)
49458
21225 (-57.09%)
Test#2 (FP)
84798
23916 (-71.80%)
Test#3 (Generic, ZIP)
20703
9413 (-54.53%)
Test#1 (Memory)
4770
3871 (-18.86%)
TOTAL
159730
58425 (-63.42%)

Performance/W
i7-6820HQ
i5-3320M
Test#1 (Integers)
1099 points/W
606 points/W
Test#2 (FP)
1884 points/W
683 points/W
Test#3 (Generic, ZIP)
460 points/W
269 points/W
Test#1 (Memory)
106 points/W
111 points/W
TOTAL
3550 points/W
1669 points/W

Performance/GHz
i7-6820HQ
i5-3320M
Test#1 (Integers)
3273 points/GHz
3247 points/GHz
Test#2 (FP)
5016 points/GHz
3201 points/GHz
Test#3 (Generic, ZIP)
1244 points/GHz
1235 points/GHz
Test#1 (Memory)
1977 points/GHz
1183 points/GHz
TOTAL
11510 points/GHz
8865 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