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Core i7-720QM vs i7-7700HQ


Description
The i7-720QM is based on Nehalem architecture while the i7-7700HQ is based on Kaby Lake.

Using the multithread performance as a reference, the i7-720QM gets a score of 38.8 k points while the i7-7700HQ gets 167.4 k points.

Summarizing, the i7-7700HQ is 4.3 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
906e9
Core
Clarksfield
Kaby Lake-H
Architecture
Base frecuency
1.6 GHz
2.8 GHz
Boost frecuency
2.8 GHz
3.8 GHz
Socket
988-pin micro-FCPGA8
BGA1440
Cores/Threads
4/8
4/8
TDP
45 W
45 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
January 2017
Mean monothread perf.
13.13k points
56.29k points
Mean multithread perf.
38.78k points
208.33k 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
i7-7700HQ
Test#1 (Integers)
1.49k
3.82k (x2.56)
Test#2 (FP)
3.4k
15.49k (x4.55)
Test#3 (Generic, ZIP)
1.95k
4.96k (x2.55)
Test#1 (Memory)
2.08k
8.82k (x4.24)
TOTAL
8.92k
33.09k (x3.71)

Multithread

i7-720QM

i7-7700HQ
Test#1 (Integers)
4.23k
14.15k (x3.35)
Test#2 (FP)
11.4k
65.81k (x5.77)
Test#3 (Generic, ZIP)
7.17k
22.41k (x3.12)
Test#1 (Memory)
4.51k
5.21k (x1.15)
TOTAL
27.32k
107.57k (x3.94)

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
i7-720QM
i7-7700HQ
Test#1 (Integers)
5.49k
13.75k (x2.5)
Test#2 (FP)
3.55k
19.69k (x5.55)
Test#3 (Generic, ZIP)
2.01k
5.19k (x2.58)
Test#1 (Memory)
2.09k
8.92k (x4.28)
TOTAL
13.13k
47.55k (x3.62)

Multithread

i7-720QM

i7-7700HQ
Test#1 (Integers)
15.06k
52.55k (x3.49)
Test#2 (FP)
12.15k
86.47k (x7.12)
Test#3 (Generic, ZIP)
7.18k
23.02k (x3.21)
Test#1 (Memory)
4.39k
5.4k (x1.23)
TOTAL
38.78k
167.43k (x4.32)

Performance/W
i7-720QM
i7-7700HQ
Test#1 (Integers)
335 points/W
1168 points/W
Test#2 (FP)
270 points/W
1922 points/W
Test#3 (Generic, ZIP)
160 points/W
511 points/W
Test#1 (Memory)
98 points/W
120 points/W
TOTAL
862 points/W
3721 points/W

Performance/GHz
i7-720QM
i7-7700HQ
Test#1 (Integers)
1962 points/GHz
3620 points/GHz
Test#2 (FP)
1267 points/GHz
5182 points/GHz
Test#3 (Generic, ZIP)
717 points/GHz
1365 points/GHz
Test#1 (Memory)
745 points/GHz
2347 points/GHz
TOTAL
4691 points/GHz
12514 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