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Core i7-4765T vs i5-8400


Description
The i7-4765T is based on Haswell architecture while the i5-8400 is based on Coffee Lake.

Using the multithread performance as a reference, the i7-4765T gets a score of 134.5 k points while the i5-8400 gets 289.6 k points.

Summarizing, the i5-8400 is 2.2 times faster than the i7-4765T . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306c3
906ea
Core
Haswell
Coffee Lake-S
Architecture
Base frecuency
2 GHz
2.8 GHz
Boost frecuency
3 GHz
4 GHz
Socket
LGA 1150
LGA 1151
Cores/Threads
4/8
6/6
TDP
35 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
8192 kB
9216 kB
Date
May 2013
September 2017
Mean monothread perf.
31.31k points
64.98k points
Mean multithread perf.
134.53k points
289.61k 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
i7-4765T
i5-8400
Test#1 (Integers)
15.61k
26.5k (x1.7)
Test#2 (FP)
8.8k
23.11k (x2.63)
Test#3 (Generic, ZIP)
3.58k
5.2k (x1.45)
Test#1 (Memory)
3.33k
10.16k (x3.05)
TOTAL
31.31k
64.98k (x2.08)

Multithread

i7-4765T

i5-8400
Test#1 (Integers)
66k
135.08k (x2.05)
Test#2 (FP)
43.27k
121.49k (x2.81)
Test#3 (Generic, ZIP)
17.39k
27.53k (x1.58)
Test#1 (Memory)
7.88k
5.5k (x0.7)
TOTAL
134.53k
289.61k (x2.15)

Performance/W
i7-4765T
i5-8400
Test#1 (Integers)
1886 points/W
2078 points/W
Test#2 (FP)
1236 points/W
1869 points/W
Test#3 (Generic, ZIP)
497 points/W
424 points/W
Test#1 (Memory)
225 points/W
85 points/W
TOTAL
3844 points/W
4455 points/W

Performance/GHz
i7-4765T
i5-8400
Test#1 (Integers)
5203 points/GHz
6626 points/GHz
Test#2 (FP)
2932 points/GHz
5778 points/GHz
Test#3 (Generic, ZIP)
1193 points/GHz
1300 points/GHz
Test#1 (Memory)
1110 points/GHz
2541 points/GHz
TOTAL
10438 points/GHz
16245 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