Core i7-640LM vs Celeron J3455
Description
The i7-640LM is based on Westmere architecture while the J3455 is based on Goldmont.
Using the multithread performance as a reference, the i7-640LM gets a score of 31.7 k points while the J3455 gets 47.3 k points.
Summarizing, the J3455 is 1.5 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 J3455 gets 47.3 k points.
Summarizing, the J3455 is 1.5 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
506c9
Core
Calpella
Apollo Lake
Base frecuency
2.133 GHz
1.5 GHz
Boost frecuency
2.667 GHz
2.3 GHz
Socket
BGA1288
BGA1296
Cores/Threads
2/4
4/4
TDP
25 W
10 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x24 kB
Cache L2
2x256 kB
2x1024 kB
Cache L3
4096 kB
0 kB
Date
January 2010
August 2016
Mean monothread perf.
16.35k points
12.98k points
Mean multithread perf.
31.74k points
47.34k 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
J3455
Test#1 (Integers)
7.01k
6.02k (x0.86)
Test#2 (FP)
4.58k
3.49k (x0.76)
Test#3 (Generic, ZIP)
2.73k
2.01k (x0.73)
Test#1 (Memory)
2.03k
1.47k (x0.72)
TOTAL
16.35k
12.98k (x0.79)
Multithread
i7-640LM
J3455
Test#1 (Integers)
12.93k
23.7k (x1.83)
Test#2 (FP)
10.21k
13.75k (x1.35)
Test#3 (Generic, ZIP)
6.22k
7.8k (x1.25)
Test#1 (Memory)
2.37k
2.09k (x0.88)
TOTAL
31.74k
47.34k (x1.49)
Performance/W
i7-640LM
J3455
Test#1 (Integers)
517 points/W
2370 points/W
Test#2 (FP)
409 points/W
1375 points/W
Test#3 (Generic, ZIP)
249 points/W
780 points/W
Test#1 (Memory)
95 points/W
209 points/W
TOTAL
1269 points/W
4734 points/W
Performance/GHz
i7-640LM
J3455
Test#1 (Integers)
2627 points/GHz
2619 points/GHz
Test#2 (FP)
1718 points/GHz
1517 points/GHz
Test#3 (Generic, ZIP)
1024 points/GHz
872 points/GHz
Test#1 (Memory)
762 points/GHz
637 points/GHz
TOTAL
6130 points/GHz
5645 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