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Core i7-720QM vs i7-7700


Description
The i7-720QM is based on Nehalem architecture while the i7-7700 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 i7-7700 gets 198 k points.

Summarizing, the i7-7700 is 5.1 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
906e9
Core
Clarksfield
Kaby Lake-S
Architecture
Base frecuency
1.6 GHz
3.6 GHz
Boost frecuency
2.8 GHz
4.2 GHz
Socket
988-pin micro-FCPGA8
LGA 1151
Cores/Threads
4/8
4/8
TDP
45 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
8192 kB
Date
September 2009
September 2016
Mean monothread perf.
13.13k points
67.33k points
Mean multithread perf.
38.78k points
257.52k 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
i7-7700
Test#1 (Integers)
1.49k
4.23k (x2.84)
Test#2 (FP)
3.4k
16.76k (x4.92)
Test#3 (Generic, ZIP)
1.95k
5.42k (x2.78)
Test#1 (Memory)
2.08k
12.23k (x5.88)
TOTAL
8.92k
38.64k (x4.33)

Multithread

i7-720QM

i7-7700
Test#1 (Integers)
4.23k
16.71k (x3.95)
Test#2 (FP)
11.4k
73.1k (x6.41)
Test#3 (Generic, ZIP)
7.17k
25.76k (x3.59)
Test#1 (Memory)
4.51k
7.12k (x1.58)
TOTAL
27.32k
122.68k (x4.49)

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
i7-7700
Test#1 (Integers)
5.49k
15.33k (x2.79)
Test#2 (FP)
3.55k
21.94k (x6.19)
Test#3 (Generic, ZIP)
2.01k
5.85k (x2.91)
Test#1 (Memory)
2.09k
12.52k (x6)
TOTAL
13.13k
55.64k (x4.24)

Multithread

i7-720QM

i7-7700
Test#1 (Integers)
15.06k
61.73k (x4.1)
Test#2 (FP)
12.15k
99.91k (x8.23)
Test#3 (Generic, ZIP)
7.18k
27.03k (x3.76)
Test#1 (Memory)
4.39k
9.28k (x2.11)
TOTAL
38.78k
197.96k (x5.1)

Performance/W
i7-720QM
i7-7700
Test#1 (Integers)
335 points/W
950 points/W
Test#2 (FP)
270 points/W
1537 points/W
Test#3 (Generic, ZIP)
160 points/W
416 points/W
Test#1 (Memory)
98 points/W
143 points/W
TOTAL
862 points/W
3046 points/W

Performance/GHz
i7-720QM
i7-7700
Test#1 (Integers)
1962 points/GHz
3650 points/GHz
Test#2 (FP)
1267 points/GHz
5223 points/GHz
Test#3 (Generic, ZIP)
717 points/GHz
1393 points/GHz
Test#1 (Memory)
745 points/GHz
2982 points/GHz
TOTAL
4691 points/GHz
13248 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