| | | | | | |

Core i7-6700HQ vs i7-2640M


Description
The i7-6700HQ is based on Skylake architecture while the i7-2640M is based on Sandy Bridge.

Using the multithread performance as a reference, the i7-6700HQ gets a score of 145.7 k points while the i7-2640M gets 54.9 k points.

Summarizing, the i7-6700HQ is 2.7 times faster than the i7-2640M. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
206a7
Core
Skylake-H
Sandy Bridge
Architecture
Base frecuency
2.6 GHz
2.8 GHz
Boost frecuency
3.5 GHz
3.5 GHz
Socket
BGA1440
PGA 988B
Cores/Threads
4/8
2/4
TDP
45 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
6144 kB
4096 kB
Date
September 2011
Mean monothread perf.
50.54k points
25.86k points
Mean multithread perf.
205.24k 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
i7-6700HQ
i7-2640M
Test#1 (Integers)
11.23k
9.63k (x0.86)
Test#2 (FP)
16.98k
8.33k (x0.49)
Test#3 (Generic, ZIP)
4.21k
4.08k (x0.97)
Test#1 (Memory)
7.07k
3.82k (x0.54)
TOTAL
39.49k
25.86k (x0.65)

Multithread

i7-6700HQ

i7-2640M
Test#1 (Integers)
44.59k
21.22k (x0.48)
Test#2 (FP)
75.02k
19.6k (x0.26)
Test#3 (Generic, ZIP)
20.15k
10.09k (x0.5)
Test#1 (Memory)
5.92k
3.94k (x0.67)
TOTAL
145.68k
54.86k (x0.38)

Performance/W
i7-6700HQ
i7-2640M
Test#1 (Integers)
991 points/W
606 points/W
Test#2 (FP)
1667 points/W
560 points/W
Test#3 (Generic, ZIP)
448 points/W
288 points/W
Test#1 (Memory)
131 points/W
112 points/W
TOTAL
3237 points/W
1567 points/W

Performance/GHz
i7-6700HQ
i7-2640M
Test#1 (Integers)
3208 points/GHz
2752 points/GHz
Test#2 (FP)
4853 points/GHz
2380 points/GHz
Test#3 (Generic, ZIP)
1203 points/GHz
1165 points/GHz
Test#1 (Memory)
2021 points/GHz
1092 points/GHz
TOTAL
11284 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