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Core i3-3120M vs i7-6600U


Description
The i3-3120M is based on Ivy Bridge architecture while the i7-6600U is based on Skylake.

Using the multithread performance as a reference, the i3-3120M gets a score of 47.8 k points while the i7-6600U gets 45.1 k points.

Summarizing, the i3-3120M is 1.1 times faster than the i7-6600U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306a9
406e3
Core
Skylake-U
Architecture
Base frecuency
2.5 GHz
2.6 GHz
Boost frecuency
2.5 GHz
3.4 GHz
Socket
BGA1023
BGA1356
Cores/Threads
2 /2
2/4
TDP
35 W
15 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
3072 kB
4096 kB
Date
September 2012
September 2015
Mean monothread perf.
22.12k points
39.73k points
Mean multithread perf.
47.78k points
79.22k 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
i3-3120M
i7-6600U
Test#1 (Integers)
7.92k
8.49k (x1.07)
Test#2 (FP)
7.96k
10.92k (x1.37)
Test#3 (Generic, ZIP)
3.09k
2.76k (x0.89)
Test#1 (Memory)
3.15k
4.93k (x1.56)
TOTAL
22.12k
27.1k (x1.23)

Multithread

i3-3120M

i7-6600U
Test#1 (Integers)
16.82k
14.11k (x0.84)
Test#2 (FP)
19k
20.05k (x1.06)
Test#3 (Generic, ZIP)
7.7k
6.17k (x0.8)
Test#1 (Memory)
4.25k
4.73k (x1.11)
TOTAL
47.78k
45.05k (x0.94)

Performance/W
i3-3120M
i7-6600U
Test#1 (Integers)
481 points/W
940 points/W
Test#2 (FP)
543 points/W
1337 points/W
Test#3 (Generic, ZIP)
220 points/W
411 points/W
Test#1 (Memory)
121 points/W
315 points/W
TOTAL
1365 points/W
3004 points/W

Performance/GHz
i3-3120M
i7-6600U
Test#1 (Integers)
3169 points/GHz
2497 points/GHz
Test#2 (FP)
3182 points/GHz
3211 points/GHz
Test#3 (Generic, ZIP)
1236 points/GHz
813 points/GHz
Test#1 (Memory)
1259 points/GHz
1449 points/GHz
TOTAL
8847 points/GHz
7970 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