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Core i7-7500U vs i7-4500U


Description
The i7-7500U is based on Kaby Lake architecture while the i7-4500U is based on Haswell.

Using the multithread performance as a reference, the i7-7500U gets a score of 86.9 k points while the i7-4500U gets 66.1 k points.

Summarizing, the i7-7500U is 1.3 times faster than the i7-4500U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
40651
Core
Kaby Lake-U
Haswell
Architecture
Base frecuency
2.7 GHz
1.8 GHz
Boost frecuency
3.5 GHz
3 GHz
Socket
BGA1356
BGA1168
Cores/Threads
2/4
2 /2
TDP
15 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
August 2016
June 2013
Mean monothread perf.
48.67k points
33.02k points
Mean multithread perf.
86.94k points
66.14k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-7500U
i7-4500U
Test#1 (Integers)
3.53k
3.31k (x0.94)
Test#2 (FP)
14.67k
8.37k (x0.57)
Test#3 (Generic, ZIP)
4.84k
3.68k (x0.76)
Test#1 (Memory)
6.26k
3.34k (x0.53)
TOTAL
29.29k
18.71k (x0.64)

Multithread

i7-7500U

i7-4500U
Test#1 (Integers)
7.26k
5.21k (x0.72)
Test#2 (FP)
35.04k
18.54k (x0.53)
Test#3 (Generic, ZIP)
11.28k
7.8k (x0.69)
Test#1 (Memory)
5.69k
3.54k (x0.62)
TOTAL
59.27k
35.09k (x0.59)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-7500U
i7-4500U
Test#1 (Integers)
12.93k
10.2k (x0.79)
Test#2 (FP)
18.63k
9.23k (x0.5)
Test#3 (Generic, ZIP)
5.03k
3.89k (x0.77)
Test#1 (Memory)
6.16k
3.29k (x0.53)
TOTAL
42.75k
26.61k (x0.62)

Multithread

i7-7500U

i7-4500U
Test#1 (Integers)
27.13k
19.2k (x0.71)
Test#2 (FP)
43.19k
19.02k (x0.44)
Test#3 (Generic, ZIP)
11.7k
8.31k (x0.71)
Test#1 (Memory)
4.99k
3.22k (x0.65)
TOTAL
87.02k
49.75k (x0.57)

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
i7-7500U
i7-4500U
Test#1 (Integers)
12.71k
10.41k (x0.82)
Test#2 (FP)
18.61k
8.97k (x0.48)
Test#3 (Generic, ZIP)
4.78k
3.82k (x0.8)
Test#1 (Memory)
6.63k
3.39k (x0.51)
TOTAL
42.72k
26.59k (x0.62)

Multithread

i7-7500U

i7-4500U
Test#1 (Integers)
27.27k
19.91k (x0.73)
Test#2 (FP)
44.7k
21.47k (x0.48)
Test#3 (Generic, ZIP)
11.33k
8.53k (x0.75)
Test#1 (Memory)
5.55k
3.53k (x0.64)
TOTAL
88.86k
53.44k (x0.6)

AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i7-7500U
i7-4500U
Test#1 (Integers)
20.74k
16.67k (x0.8)
Test#2 (FP)
18.41k
9k (x0.49)
Test#3 (Generic, ZIP)
3.98k
3.75k (x0.94)
Test#1 (Memory)
5.54k
3.6k (x0.65)
TOTAL
48.67k
33.02k (x0.68)

Multithread

i7-7500U

i7-4500U
Test#1 (Integers)
37.34k
31.77k (x0.85)
Test#2 (FP)
35.79k
21.36k (x0.6)
Test#3 (Generic, ZIP)
8.34k
7.95k (x0.95)
Test#1 (Memory)
5.48k
5.06k (x0.92)
TOTAL
86.94k
66.14k (x0.76)

Performance/W
i7-7500U
i7-4500U
Test#1 (Integers)
2489 points/W
2118 points/W
Test#2 (FP)
2386 points/W
1424 points/W
Test#3 (Generic, ZIP)
556 points/W
530 points/W
Test#1 (Memory)
365 points/W
338 points/W
TOTAL
5796 points/W
4410 points/W

Performance/GHz
i7-7500U
i7-4500U
Test#1 (Integers)
5926 points/GHz
5558 points/GHz
Test#2 (FP)
5260 points/GHz
3001 points/GHz
Test#3 (Generic, ZIP)
1137 points/GHz
1250 points/GHz
Test#1 (Memory)
1584 points/GHz
1199 points/GHz
TOTAL
13907 points/GHz
11008 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