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Core i7-720QM vs i5-6500


Description
The i7-720QM is based on Nehalem architecture while the i5-6500 is based on Skylake.

Using the multithread performance as a reference, the i7-720QM gets a score of 27.3 k points while the i5-6500 gets 85 k points.

Summarizing, the i5-6500 is 3.1 times faster than the i7-720QM. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106e5
506e3
Core
Clarksfield
Skylake-S
Architecture
Base frecuency
1.6 GHz
3.2 GHz
Boost frecuency
2.8 GHz
3.6 GHz
Socket
988-pin micro-FCPGA8
LGA 1151
Cores/Threads
4/8
4/4
TDP
45 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
6144 kB
Date
September 2009
September 2015
Mean monothread perf.
13.13k points
53.7k points
Mean multithread perf.
38.78k points
179.44k points

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
i7-720QM
i5-6500
Test#1 (Integers)
1.49k
3.46k (x2.32)
Test#2 (FP)
3.4k
14.61k (x4.29)
Test#3 (Generic, ZIP)
1.95k
4.66k (x2.39)
Test#1 (Memory)
2.08k
6.99k (x3.36)
TOTAL
8.92k
29.71k (x3.33)

Multithread

i7-720QM

i5-6500
Test#1 (Integers)
4.23k
12.52k (x2.96)
Test#2 (FP)
11.4k
51.13k (x4.48)
Test#3 (Generic, ZIP)
7.17k
17.41k (x2.43)
Test#1 (Memory)
4.51k
3.9k (x0.86)
TOTAL
27.32k
84.96k (x3.11)

Performance/W
i7-720QM
i5-6500
Test#1 (Integers)
94 points/W
193 points/W
Test#2 (FP)
253 points/W
787 points/W
Test#3 (Generic, ZIP)
159 points/W
268 points/W
Test#1 (Memory)
100 points/W
60 points/W
TOTAL
607 points/W
1307 points/W

Performance/GHz
i7-720QM
i5-6500
Test#1 (Integers)
533 points/GHz
960 points/GHz
Test#2 (FP)
1216 points/GHz
4057 points/GHz
Test#3 (Generic, ZIP)
696 points/GHz
1294 points/GHz
Test#1 (Memory)
742 points/GHz
1942 points/GHz
TOTAL
3187 points/GHz
8253 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