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Core i7-7560U vs i7-2640M


Description
The i7-7560U is based on Kaby Lake architecture while the i7-2640M is based on Sandy Bridge.

Using the multithread performance as a reference, the i7-7560U gets a score of 89 k points while the i7-2640M gets 54.9 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
806e9
206a7
Core
Kaby Lake-U
Sandy Bridge
Architecture
Base frecuency
2.4 GHz
2.8 GHz
Boost frecuency
3.8 GHz
3.5 GHz
Socket
BGA 1356
PGA 988B
Cores/Threads
2/4
2/4
TDP
15 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
4096 kB
4096 kB
Date
January 2017
September 2011
Mean monothread perf.
48.16k points
25.86k points
Mean multithread perf.
97.27k points
54.86k 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
i7-7560U
i7-2640M
Test#1 (Integers)
12.88k
9.63k (x0.75)
Test#2 (FP)
20.02k
8.33k (x0.42)
Test#3 (Generic, ZIP)
4.15k
4.08k (x0.98)
Test#1 (Memory)
8.97k
3.82k (x0.43)
TOTAL
46.02k
25.86k (x0.56)

Multithread

i7-7560U

i7-2640M
Test#1 (Integers)
23k
21.22k (x0.92)
Test#2 (FP)
41.21k
19.6k (x0.48)
Test#3 (Generic, ZIP)
9.92k
10.09k (x1.02)
Test#1 (Memory)
14.9k
3.94k (x0.26)
TOTAL
89.03k
54.86k (x0.62)

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

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