Core i7-2640M vs i7-4500U
Description
The i7-2640M is based on Sandy Bridge architecture while the i7-4500U is based on Haswell.
Using the multithread performance as a reference, the i7-2640M gets a score of 54.9 k points while the i7-4500U gets 53.4 k points.
Summarizing, the i7-2640M is 1 times faster than the i7-4500U . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-2640M gets a score of 54.9 k points while the i7-4500U gets 53.4 k points.
Summarizing, the i7-2640M is 1 times faster than the i7-4500U . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
206a7
40651
Core
Sandy Bridge
Haswell
Base frecuency
2.8 GHz
1.8 GHz
Boost frecuency
3.5 GHz
3 GHz
Socket
PGA 988B
BGA1168
Cores/Threads
2/4
2 /2
TDP
35 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
2x256 kB
256 kB
Cache L3
4096 kB
4096 kB
Date
September 2011
June 2013
Mean monothread perf.
25.86k points
33.02k points
Mean multithread perf.
54.86k points
66.14k 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
i7-4500U
Test#1 (Integers)
9.63k
10.41k (x1.08)
Test#2 (FP)
8.33k
8.97k (x1.08)
Test#3 (Generic, ZIP)
4.08k
3.82k (x0.94)
Test#1 (Memory)
3.82k
3.39k (x0.89)
TOTAL
25.86k
26.59k (x1.03)
Multithread
i7-2640M
i7-4500U
Test#1 (Integers)
21.22k
19.91k (x0.94)
Test#2 (FP)
19.6k
21.47k (x1.1)
Test#3 (Generic, ZIP)
10.09k
8.53k (x0.85)
Test#1 (Memory)
3.94k
3.53k (x0.9)
TOTAL
54.86k
53.44k (x0.97)
Performance/W
i7-2640M
i7-4500U
Test#1 (Integers)
606 points/W
1327 points/W
Test#2 (FP)
560 points/W
1431 points/W
Test#3 (Generic, ZIP)
288 points/W
569 points/W
Test#1 (Memory)
112 points/W
235 points/W
TOTAL
1567 points/W
3563 points/W
Performance/GHz
i7-2640M
i7-4500U
Test#1 (Integers)
2752 points/GHz
3471 points/GHz
Test#2 (FP)
2380 points/GHz
2990 points/GHz
Test#3 (Generic, ZIP)
1165 points/GHz
1274 points/GHz
Test#1 (Memory)
1092 points/GHz
1128 points/GHz
TOTAL
7390 points/GHz
8863 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