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Core i7-2640M vs i7-7560U


Description
The i7-2640M is based on Sandy Bridge architecture while the i7-7560U 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 i7-7560U gets 89 k points.

Summarizing, the i7-7560U is 1.6 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
2.4 GHz
Boost frecuency
3.5 GHz
3.8 GHz
Socket
PGA 988B
BGA 1356
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
4096 kB
Date
September 2011
January 2017
Mean monothread perf.
25.86k points
48.16k points
Mean multithread perf.
54.86k points
97.27k 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
i7-7560U
Test#1 (Integers)
9.63k
12.88k (x1.34)
Test#2 (FP)
8.33k
20.02k (x2.4)
Test#3 (Generic, ZIP)
4.08k
4.15k (x1.02)
Test#1 (Memory)
3.82k
8.97k (x2.35)
TOTAL
25.86k
46.02k (x1.78)

Multithread

i7-2640M

i7-7560U
Test#1 (Integers)
21.22k
23k (x1.08)
Test#2 (FP)
19.6k
41.21k (x2.1)
Test#3 (Generic, ZIP)
10.09k
9.92k (x0.98)
Test#1 (Memory)
3.94k
14.9k (x3.79)
TOTAL
54.86k
89.03k (x1.62)

Performance/W
i7-2640M
i7-7560U
Test#1 (Integers)
606 points/W
1533 points/W
Test#2 (FP)
560 points/W
2747 points/W
Test#3 (Generic, ZIP)
288 points/W
661 points/W
Test#1 (Memory)
112 points/W
994 points/W
TOTAL
1567 points/W
5935 points/W

Performance/GHz
i7-2640M
i7-7560U
Test#1 (Integers)
2752 points/GHz
3390 points/GHz
Test#2 (FP)
2380 points/GHz
5268 points/GHz
Test#3 (Generic, ZIP)
1165 points/GHz
1092 points/GHz
Test#1 (Memory)
1092 points/GHz
2361 points/GHz
TOTAL
7390 points/GHz
12111 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