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Core i7-4790K vs i5-8500T


Description
The i7-4790K is based on Haswell architecture while the i5-8500T is based on Coffee Lake.

Using the multithread performance as a reference, the i7-4790K gets a score of 219.5 k points while the i5-8500T gets 251.8 k points.

Summarizing, the i5-8500T is 1.1 times faster than the i7-4790K . 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
4 GHz
2.1 GHz
Boost frecuency
4.4 GHz
3.5 GHz
Socket
LGA 1150
LGA 1151
Cores/Threads
4/8
6/6
TDP
88 W
35 W
Cache L1 (d+i)
32+32 kB
6x32+6x32 kB
Cache L2
256 kB
6x256 kB
Cache L3
8192 kB
9216 kB
Date
May 2014
March 2018

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
i7-4790K
i5-8500T
Test#1 (Integers)
5065
3559 (-29.72%)
Test#2 (FP)
12626
14758 (16.89%)
Test#3 (Generic, ZIP)
5815
4457 (-23.34%)
Test#1 (Memory)
4963
8723 (75.75%)
TOTAL
28468
31497 (10.64%)

Multithread

i7-4790K

i5-8500T
Test#1 (Integers)
18283
19371 (5.95%)
Test#2 (FP)
64071
82354 (28.54%)
Test#3 (Generic, ZIP)
27522
24602 (-10.61%)
Test#1 (Memory)
7970
2967 (-62.77%)
TOTAL
117844
129295 (9.72%)

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
i7-4790K
i5-8500T
Test#1 (Integers)
15603
12931 (-17.12%)
Test#2 (FP)
13919
18613 (33.73%)
Test#3 (Generic, ZIP)
6125
4759 (-22.30%)
Test#1 (Memory)
5001
10054 (101.05%)
TOTAL
40647
46358 (14.05%)

Multithread

i7-4790K

i5-8500T
Test#1 (Integers)
65477
71148 (8.66%)
Test#2 (FP)
63290
102739 (62.33%)
Test#3 (Generic, ZIP)
27929
26602 (-4.75%)
Test#1 (Memory)
7841
2898 (-63.04%)
TOTAL
164537
203386 (23.61%)

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
i7-4790K
i5-8500T
Test#1 (Integers)
15800
12920 (-18.23%)
Test#2 (FP)
14346
19465 (35.69%)
Test#3 (Generic, ZIP)
5974
4620 (-22.65%)
Test#1 (Memory)
5166
9597 (85.80%)
TOTAL
41285
46603 (12.88%)

Multithread

i7-4790K

i5-8500T
Test#1 (Integers)
62785
71250 (13.48%)
Test#2 (FP)
66483
91157 (37.11%)
Test#3 (Generic, ZIP)
26352
24448 (-7.23%)
Test#1 (Memory)
8739
2851 (-67.38%)
TOTAL
164359
189705 (15.42%)

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
i7-4790K
i5-8500T
Test#1 (Integers)
26714
23129 (-13.42%)
Test#2 (FP)
15101
20698 (37.06%)
Test#3 (Generic, ZIP)
6186
4710 (-23.87%)
Test#1 (Memory)
5554
10734 (93.26%)
TOTAL
53555
59270 (10.67%)

Multithread

i7-4790K

i5-8500T
Test#1 (Integers)
109572
125168 (14.23%)
Test#2 (FP)
71887
98070 (36.42%)
Test#3 (Generic, ZIP)
28440
25570 (-10.09%)
Test#1 (Memory)
9603
3015 (-68.61%)
TOTAL
219503
251822 (14.72%)

Performance/W
i7-4790K
i5-8500T
Test#1 (Integers)
1245 points/W
3576 points/W
Test#2 (FP)
817 points/W
2802 points/W
Test#3 (Generic, ZIP)
323 points/W
731 points/W
Test#1 (Memory)
109 points/W
86 points/W
TOTAL
2494 points/W
7195 points/W

Performance/GHz
i7-4790K
i5-8500T
Test#1 (Integers)
6071 points/GHz
6608 points/GHz
Test#2 (FP)
3432 points/GHz
5914 points/GHz
Test#3 (Generic, ZIP)
1406 points/GHz
1346 points/GHz
Test#1 (Memory)
1262 points/GHz
3067 points/GHz
TOTAL
12172 points/GHz
16934 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. 3.7.8