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Core i7-2640M vs i5-7300U


Description
The i7-2640M is based on Sandy Bridge architecture while the i5-7300U is based on Kaby Lake.

Using the multithread performance as a reference, the i7-2640M gets a score of 54.9 k points while the i5-7300U gets 84.8 k points.

Summarizing, the i5-7300U is 1.5 times faster than the i7-2640M. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
806e9
Core
Sandy Bridge
Kaby Lake-U
Architecture
Base frecuency
2.8 GHz
2.6 GHz
Boost frecuency
3.5 GHz
3.5 GHz
Socket
PGA 988B
BGA1356
Cores/Threads
2/4
2/4
TDP
35 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
4096 kB
3072 kB
Date
September 2011
January 2017
Mean monothread perf.
25.86k points
48.25k points
Mean multithread perf.
54.86k points
109.1k points

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-2640M
i5-7300U
Test#1 (Integers)
9.63k
9.85k (x1.02)
Test#2 (FP)
8.33k
17.37k (x2.08)
Test#3 (Generic, ZIP)
4.08k
3.98k (x0.98)
Test#1 (Memory)
3.82k
5.11k (x1.34)
TOTAL
25.86k
36.31k (x1.4)

Multithread

i7-2640M

i5-7300U
Test#1 (Integers)
21.22k
25.37k (x1.2)
Test#2 (FP)
19.6k
43.43k (x2.22)
Test#3 (Generic, ZIP)
10.09k
10.62k (x1.05)
Test#1 (Memory)
3.94k
5.4k (x1.37)
TOTAL
54.86k
84.82k (x1.55)

Performance/W
i7-2640M
i5-7300U
Test#1 (Integers)
606 points/W
1691 points/W
Test#2 (FP)
560 points/W
2896 points/W
Test#3 (Generic, ZIP)
288 points/W
708 points/W
Test#1 (Memory)
112 points/W
360 points/W
TOTAL
1567 points/W
5655 points/W

Performance/GHz
i7-2640M
i5-7300U
Test#1 (Integers)
2752 points/GHz
2816 points/GHz
Test#2 (FP)
2380 points/GHz
4962 points/GHz
Test#3 (Generic, ZIP)
1165 points/GHz
1137 points/GHz
Test#1 (Memory)
1092 points/GHz
1461 points/GHz
TOTAL
7390 points/GHz
10376 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