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Core i7-7500U vs i5-8500T


Description
The i7-7500U is based on Kaby Lake architecture while the i5-8500T is based on Coffee Lake.

Using the multithread performance as a reference, the i7-7500U gets a score of 86.9 k points while the i5-8500T gets 251.8 k points.

Summarizing, the i5-8500T is 2.9 times faster than the i7-7500U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
906ea
Core
Kaby Lake-U
Coffee Lake-S
Architecture
Base frecuency
2.7 GHz
2.1 GHz
Boost frecuency
3.5 GHz
3.5 GHz
Socket
BGA1356
LGA 1151
Cores/Threads
2/4
6/6
TDP
15 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
6x32+6x32 kB
Cache L2
2x256 kB
6x256 kB
Cache L3
4096 kB
9216 kB
Date
August 2016
March 2018
Mean monothread perf.
48.67k points
59.27k points
Mean multithread perf.
86.94k points
251.82k 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
i5-8500T
Test#1 (Integers)
3.53k
3.56k (x1.01)
Test#2 (FP)
14.67k
14.76k (x1.01)
Test#3 (Generic, ZIP)
4.84k
4.46k (x0.92)
Test#1 (Memory)
6.26k
8.72k (x1.39)
TOTAL
29.29k
31.5k (x1.08)

Multithread

i7-7500U

i5-8500T
Test#1 (Integers)
7.26k
19.37k (x2.67)
Test#2 (FP)
35.04k
82.35k (x2.35)
Test#3 (Generic, ZIP)
11.28k
24.6k (x2.18)
Test#1 (Memory)
5.69k
2.97k (x0.52)
TOTAL
59.27k
129.29k (x2.18)

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
i5-8500T
Test#1 (Integers)
12.93k
12.93k (x1)
Test#2 (FP)
18.63k
18.61k (x1)
Test#3 (Generic, ZIP)
5.03k
4.76k (x0.95)
Test#1 (Memory)
6.16k
10.05k (x1.63)
TOTAL
42.75k
46.36k (x1.08)

Multithread

i7-7500U

i5-8500T
Test#1 (Integers)
27.13k
71.15k (x2.62)
Test#2 (FP)
43.19k
102.74k (x2.38)
Test#3 (Generic, ZIP)
11.7k
26.6k (x2.27)
Test#1 (Memory)
4.99k
2.9k (x0.58)
TOTAL
87.02k
203.39k (x2.34)

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
i5-8500T
Test#1 (Integers)
12.71k
12.92k (x1.02)
Test#2 (FP)
18.61k
19.47k (x1.05)
Test#3 (Generic, ZIP)
4.78k
4.62k (x0.97)
Test#1 (Memory)
6.63k
9.6k (x1.45)
TOTAL
42.72k
46.6k (x1.09)

Multithread

i7-7500U

i5-8500T
Test#1 (Integers)
27.27k
71.25k (x2.61)
Test#2 (FP)
44.7k
91.16k (x2.04)
Test#3 (Generic, ZIP)
11.33k
24.45k (x2.16)
Test#1 (Memory)
5.55k
2.85k (x0.51)
TOTAL
88.86k
189.71k (x2.13)

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
i5-8500T
Test#1 (Integers)
20.74k
23.13k (x1.12)
Test#2 (FP)
18.41k
20.7k (x1.12)
Test#3 (Generic, ZIP)
3.98k
4.71k (x1.18)
Test#1 (Memory)
5.54k
10.73k (x1.94)
TOTAL
48.67k
59.27k (x1.22)

Multithread

i7-7500U

i5-8500T
Test#1 (Integers)
37.34k
125.17k (x3.35)
Test#2 (FP)
35.79k
98.07k (x2.74)
Test#3 (Generic, ZIP)
8.34k
25.57k (x3.07)
Test#1 (Memory)
5.48k
3.01k (x0.55)
TOTAL
86.94k
251.82k (x2.9)

Performance/W
i7-7500U
i5-8500T
Test#1 (Integers)
2489 points/W
3576 points/W
Test#2 (FP)
2386 points/W
2802 points/W
Test#3 (Generic, ZIP)
556 points/W
731 points/W
Test#1 (Memory)
365 points/W
86 points/W
TOTAL
5796 points/W
7195 points/W

Performance/GHz
i7-7500U
i5-8500T
Test#1 (Integers)
5926 points/GHz
6608 points/GHz
Test#2 (FP)
5260 points/GHz
5914 points/GHz
Test#3 (Generic, ZIP)
1137 points/GHz
1346 points/GHz
Test#1 (Memory)
1584 points/GHz
3067 points/GHz
TOTAL
13907 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. 3.11.4