| | | | | | |

Core i7-720QM vs Snapdragon 7c Gen 2


Description
The i7-720QM is based on Nehalem architecture while the 7c Gen 2 is based on Cortex-A76 / A55 (Kryo 468).

Using the multithread performance as a reference, the i7-720QM gets a score of 38.8 k points while the 7c Gen 2 gets 37 k points.

Summarizing, the i7-720QM is 1 times faster than the 7c Gen 2. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106e5
f4a
Core
Clarksfield
Cortex-A76 / A55 (Kryo 468)
Architecture
Nehalem
Base frecuency
1.6 GHz
2.55 GHz
Boost frecuency
2.8 GHz
2.55 GHz
Socket
988-pin micro-FCPGA8
-
Cores/Threads
4/8
8/8
TDP
45 W
7 W
Cache L1 (d+i)
4x32+4x32 kB
- kB
Cache L2
4x256 kB
- kB
Cache L3
6144 kB
- kB
Date
September 2009
May 2021
Mean monothread perf.
13.13k points
16.53k points
Mean multithread perf.
38.78k points
37k points

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
7c Gen 2
Test#1 (Integers)
5.49k
3.87k (x0.7)
Test#2 (FP)
3.55k
8.17k (x2.3)
Test#3 (Generic, ZIP)
2.01k
2.67k (x1.33)
Test#1 (Memory)
2.09k
1.82k (x0.87)
TOTAL
13.13k
16.53k (x1.26)

Multithread

i7-720QM

7c Gen 2
Test#1 (Integers)
15.06k
3.46k (x0.23)
Test#2 (FP)
12.15k
22.59k (x1.86)
Test#3 (Generic, ZIP)
7.18k
8.09k (x1.13)
Test#1 (Memory)
4.39k
2.85k (x0.65)
TOTAL
38.78k
37k (x0.95)

Performance/W
i7-720QM
7c Gen 2
Test#1 (Integers)
335 points/W
495 points/W
Test#2 (FP)
270 points/W
3228 points/W
Test#3 (Generic, ZIP)
160 points/W
1156 points/W
Test#1 (Memory)
98 points/W
407 points/W
TOTAL
862 points/W
5286 points/W

Performance/GHz
i7-720QM
7c Gen 2
Test#1 (Integers)
1962 points/GHz
1516 points/GHz
Test#2 (FP)
1267 points/GHz
3205 points/GHz
Test#3 (Generic, ZIP)
717 points/GHz
1047 points/GHz
Test#1 (Memory)
745 points/GHz
712 points/GHz
TOTAL
4691 points/GHz
6481 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