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Core i5-8250U vs i7-4765T


Description
The i5-8250U is based on Kaby Lake architecture while the i7-4765T is based on Haswell.

Using the multithread performance as a reference, the i5-8250U gets a score of 161.3 k points while the i7-4765T gets 134.5 k points.

Summarizing, the i5-8250U is 1.2 times faster than the i7-4765T . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ea
306c3
Core
Kaby Lake-R
Haswell
Architecture
Base frecuency
1.6 GHz
2 GHz
Boost frecuency
3.4 GHz
3 GHz
Socket
BGA1356
LGA 1150
Cores/Threads
4/8
4/8
TDP
15 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
8192 kB
Date
August 2017
May 2013
Mean monothread perf.
54.31k points
31.31k points
Mean multithread perf.
161.26k points
134.53k points

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
i5-8250U
i7-4765T
Test#1 (Integers)
22.11k
15.61k (x0.71)
Test#2 (FP)
19.64k
8.8k (x0.45)
Test#3 (Generic, ZIP)
4.54k
3.58k (x0.79)
Test#1 (Memory)
8.03k
3.33k (x0.41)
TOTAL
54.31k
31.31k (x0.58)

Multithread

i5-8250U

i7-4765T
Test#1 (Integers)
74.19k
66k (x0.89)
Test#2 (FP)
66.27k
43.27k (x0.65)
Test#3 (Generic, ZIP)
15.97k
17.39k (x1.09)
Test#1 (Memory)
4.83k
7.88k (x1.63)
TOTAL
161.26k
134.53k (x0.83)

Performance/W
i5-8250U
i7-4765T
Test#1 (Integers)
4946 points/W
1886 points/W
Test#2 (FP)
4418 points/W
1236 points/W
Test#3 (Generic, ZIP)
1065 points/W
497 points/W
Test#1 (Memory)
322 points/W
225 points/W
TOTAL
10751 points/W
3844 points/W

Performance/GHz
i5-8250U
i7-4765T
Test#1 (Integers)
6503 points/GHz
5203 points/GHz
Test#2 (FP)
5777 points/GHz
2932 points/GHz
Test#3 (Generic, ZIP)
1334 points/GHz
1193 points/GHz
Test#1 (Memory)
2361 points/GHz
1110 points/GHz
TOTAL
15975 points/GHz
10438 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