Core i7-640LM vs Snapdragon 7c Gen 2
Description
The i7-640LM is based on Westmere architecture while the 7c Gen 2 is based on Cortex-A76 / A55 (Kryo 468).
Using the multithread performance as a reference, the i7-640LM gets a score of 31.7 k points while the 7c Gen 2 gets 37 k points.
Summarizing, the 7c Gen 2 is 1.2 times faster than the i7-640LM. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-640LM gets a score of 31.7 k points while the 7c Gen 2 gets 37 k points.
Summarizing, the 7c Gen 2 is 1.2 times faster than the i7-640LM. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
20655
f4a
Core
Calpella
Cortex-A76 / A55 (Kryo 468)
Base frecuency
2.133 GHz
2.55 GHz
Boost frecuency
2.667 GHz
2.55 GHz
Socket
BGA1288
-
Cores/Threads
2/4
8/8
TDP
25 W
7 W
Cache L1 (d+i)
2x32+2x32 kB
- kB
Cache L2
2x256 kB
- kB
Cache L3
4096 kB
- kB
Date
January 2010
May 2021
Mean monothread perf.
16.35k points
16.53k points
Mean multithread perf.
31.74k 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
i7-640LM
7c Gen 2
Test#1 (Integers)
7.01k
3.87k (x0.55)
Test#2 (FP)
4.58k
8.17k (x1.78)
Test#3 (Generic, ZIP)
2.73k
2.67k (x0.98)
Test#1 (Memory)
2.03k
1.82k (x0.89)
TOTAL
16.35k
16.53k (x1.01)
Multithread
i7-640LM
7c Gen 2
Test#1 (Integers)
12.93k
3.46k (x0.27)
Test#2 (FP)
10.21k
22.59k (x2.21)
Test#3 (Generic, ZIP)
6.22k
8.09k (x1.3)
Test#1 (Memory)
2.37k
2.85k (x1.2)
TOTAL
31.74k
37k (x1.17)
Performance/W
i7-640LM
7c Gen 2
Test#1 (Integers)
517 points/W
495 points/W
Test#2 (FP)
409 points/W
3228 points/W
Test#3 (Generic, ZIP)
249 points/W
1156 points/W
Test#1 (Memory)
95 points/W
407 points/W
TOTAL
1269 points/W
5286 points/W
Performance/GHz
i7-640LM
7c Gen 2
Test#1 (Integers)
2627 points/GHz
1516 points/GHz
Test#2 (FP)
1718 points/GHz
3205 points/GHz
Test#3 (Generic, ZIP)
1024 points/GHz
1047 points/GHz
Test#1 (Memory)
762 points/GHz
712 points/GHz
TOTAL
6130 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4