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Core i7-5500U vs i3-3120M


Description
The i7-5500U is based on Broadwell architecture while the i3-3120M is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-5500U gets a score of 67.1 k points while the i3-3120M gets 47.8 k points.

Summarizing, the i7-5500U is 1.4 times faster than the i3-3120M . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306d4
306a9
Core
Broadwell-U
Architecture
Base frecuency
2.4 GHz
2.5 GHz
Boost frecuency
3 GHz
2.5 GHz
Socket
BGA 1168
BGA1023
Cores/Threads
2 /4
2 /2
TDP
15 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
256 kB
256 kB
Cache L3
4096 kB
3072 kB
Date
March 2015
September 2012
Mean monothread perf.
40.41k points
22.12k points
Mean multithread perf.
82.89k points
47.78k 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
i7-5500U
i3-3120M
Test#1 (Integers)
10.37k
7.92k (x0.76)
Test#2 (FP)
14.25k
7.96k (x0.56)
Test#3 (Generic, ZIP)
4.07k
3.09k (x0.76)
Test#1 (Memory)
3.12k
3.15k (x1.01)
TOTAL
31.81k
22.12k (x0.7)

Multithread

i7-5500U

i3-3120M
Test#1 (Integers)
20.93k
16.82k (x0.8)
Test#2 (FP)
33.87k
19k (x0.56)
Test#3 (Generic, ZIP)
8.98k
7.7k (x0.86)
Test#1 (Memory)
3.35k
4.25k (x1.27)
TOTAL
67.13k
47.78k (x0.71)

Performance/W
i7-5500U
i3-3120M
Test#1 (Integers)
1395 points/W
481 points/W
Test#2 (FP)
2258 points/W
543 points/W
Test#3 (Generic, ZIP)
599 points/W
220 points/W
Test#1 (Memory)
223 points/W
121 points/W
TOTAL
4476 points/W
1365 points/W

Performance/GHz
i7-5500U
i3-3120M
Test#1 (Integers)
3456 points/GHz
3169 points/GHz
Test#2 (FP)
4751 points/GHz
3182 points/GHz
Test#3 (Generic, ZIP)
1358 points/GHz
1236 points/GHz
Test#1 (Memory)
1039 points/GHz
1259 points/GHz
TOTAL
10604 points/GHz
8847 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